Initial commit

.gitignore

+relics

LICENSE.md

+### GNU LESSER GENERAL PUBLIC LICENSE
+
+Version 2.1, February 1999
+
+    Copyright (C) 1991, 1999 Free Software Foundation, Inc.
+    51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+    
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+    signature of Ty Coon, 1 April 1990
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+
+That's all there is to it!

Makefile

+# preupg - JAT test library for preupg
+# See LICENSE.md file for copyright and license details.
+
+MKIT_DIR=utils/mkit
+include $(MKIT_DIR)/mkit.mk

README.md

+preupg
+======
+
+JAT test library for preupg

mkit.ini

+[project]
+    version     = 0.0.0
+    name        = preupg
+    tagline     = JAT test library for preupg
+    pkgname     = shellfu-bash-preupg
+    maintainer  = Alois Mahdal <amahdal+jats@redhat.com>
+    vcs_browser = https://github.com/upgrades-migrations/shellfu-bash-preupg
+    relsrc      = master
+    reldst      = last
+
+[dist]
+    tarball  = LICENSE.md
+    tarball  = Makefile
+    tarball  = README.md
+    tarball  = mkit.ini
+    tarball  = packaging
+    tarball  = src
+    tarball  = utils
+    rpmstuff = packaging/template.spec
+
+[ENV]
+    PREFIX = /usr/local
+
+[roots]
+    doc    = [ENV:PREFIX]/share/doc/shellfu-bash-preupg
+    sfmod  = [ENV:PREFIX]/share/shellfu/include-bash
+    sfdata = [ENV:PREFIX]/share/shellfu-bash-preupg
+
+[macros]
+    __SHELLFU_MODNAME__ = preupg
+    __SHELLFU_MODHOME__ = [roots:sfdata]
+    __SHELLFU_MODDESC__ = JATS is a testing framework for Shell-based test suites.
+    __SHELLFU_MODDESC__ =
+    __SHELLFU_MODDESC__ = This sub-package contains test modules to help test preupgrade-assistant
+    __SHELLFU_MODDESC__ = AKA preupg.
+
+    __SHELLFU_VREQ_LO__ = 0.10.8
+    __SHELLFU_VREQ_HI__ = 0.11
+    __SHELLFU_REQUIRE__ = shellfu-bash-dist
+    __SHELLFU_REQUIRE__ = shellfu-bash-pxpath
+
+[files]
+    doc    = README.md
+    sfmod  = src/preupg.sh
+    sfmod  = src/preupg_upath.sh
+    sfmod  = src/preupg_fupath.sh
+    sfdata = src/builtins
+
+#mkit version=0.0.32

packaging/template.spec

+%global sfincb %{_datadir}/shellfu/include-bash
+%global sfmodn __SHELLFU_MODNAME__
+%global shellfu_req shellfu >= __SHELLFU_VREQ_LO__, shellfu < __SHELLFU_VREQ_HI__
+%global jat_req shellfu-bash-jat >= 0.0.1, shellfu-bash-jat < 0.0.2
+
+Name:       __MKIT_PROJ_PKGNAME__
+Version:    __MKIT_PROJ_VERSION__
+Release:    1%{?dist}
+Summary:    __MKIT_PROJ_NAME__ - __MKIT_PROJ_TAGLINE__
+URL:        __MKIT_PROJ_VCS_BROWSER__
+License:    LGPLv2
+Source0:    %{name}-%{version}.tar.gz
+BuildArch:  noarch
+BuildRequires: jattool-tdk
+
+Requires: %shellfu_req
+Requires: %jat_req
+Requires: shellfu-bash-dist
+Requires: shellfu-bash-pxpath
+%description
+__SHELLFU_MODDESC__
+
+%prep
+%setup -q
+
+%build
+make %{?_smp_mflags} PREFIX=/usr
+
+%install
+%make_install PREFIX=/usr
+
+%files
+%dir %{_datadir}/%{name}
+%dir %{_datadir}/%{name}/builtins
+%dir %{_docdir}/%{name}
+%doc %{_docdir}/%{name}/README.md
+%{_datadir}/%{name}/builtins/3rdparty.mdef
+%{_datadir}/%{name}/builtins/error.mdef
+%{_datadir}/%{name}/builtins/failed.mdef
+%{_datadir}/%{name}/builtins/fixed.mdef
+%{_datadir}/%{name}/builtins/informational.mdef
+%{_datadir}/%{name}/builtins/needs_action.mdef
+%{_datadir}/%{name}/builtins/needs_inspection.mdef
+%{_datadir}/%{name}/builtins/not_applicable.mdef
+%{_datadir}/%{name}/builtins/pass.mdef
+%{sfincb}/%{sfmodn}.sh
+%{sfincb}/%{sfmodn}_fupath.sh
+%{sfincb}/%{sfmodn}_upath.sh
+
+%changelog
+
+# specfile built with MKit __MKIT_SELF_VERSION__

src/builtins/3rdparty.mdef

+[preupgrade]
+author = Joe "Built-In" Example <joe@example.com>
+
+[MODULE]
+GROUP = 3rdparty
+NAME = a_custom_module
+CODE = solution_file "Solution protected by non-disclosure agreement, actually."
+CODE = exit_pass
+
+# vim: set filetype=ini:

src/builtins/error.mdef

+[preupgrade]
+author = Joe "Built-In" Example <joe@example.com>
+
+[MODULE]
+GROUP = preupgrade_assistant_fupath__builtin
+NAME = error
+CODE = solution_file "No solution known, actually."
+CODE = exit_error
+
+# vim: set filetype=ini:

src/builtins/failed.mdef

+[preupgrade]
+author = Joe "Built-In" Example <joe@example.com>
+
+[MODULE]
+GROUP = preupgrade_assistant_fupath__builtin
+NAME = failed
+CODE = solution_file "No solution possible, actually."
+CODE = log_extreme_risk "really extreme risk"
+CODE = exit_fail
+
+# vim: set filetype=ini:

src/builtins/fixed.mdef

+[preupgrade]
+author = Joe "Built-In" Example <joe@example.com>
+
+[MODULE]
+GROUP = preupgrade_assistant_fupath__builtin
+NAME = fixed
+CODE = solution_file "Solution already prepared, actually."
+CODE = exit_fixed
+
+# vim: set filetype=ini:

src/builtins/informational.mdef

+[preupgrade]
+author = Joe "Built-In" Example <joe@example.com>
+
+[MODULE]
+GROUP = preupgrade_assistant_fupath__builtin
+NAME = informational
+CODE = solution_file "Solution already done: informing you, actually."
+CODE = exit_informational
+
+# vim: set filetype=ini:

src/builtins/needs_action.mdef

+[preupgrade]
+author = Joe "Built-In" Example <joe@example.com>
+
+[MODULE]
+GROUP = preupgrade_assistant_fupath__builtin
+NAME = needs_action
+CODE = solution_file "Solution too risky, actually."
+CODE = log_high_risk "quite high risk"
+CODE = exit_fail
+
+# vim: set filetype=ini:

src/builtins/needs_inspection.mdef

+[preupgrade]
+author = Joe "Built-In" Example <joe@example.com>
+
+[MODULE]
+GROUP = preupgrade_assistant_fupath__builtin
+NAME = needs_inspection
+CODE = solution_file "Solution mildly risky, actually."
+CODE = log_medium_risk "some medium risk"
+CODE = exit_fail
+
+# vim: set filetype=ini:

src/builtins/not_applicable.mdef

+[preupgrade]
+author = Joe "Built-In" Example <joe@example.com>
+
+[MODULE]
+GROUP = preupgrade_assistant_fupath__builtin
+NAME = not_applicable
+CODE = solution_file "Solution won't be even displayed, actually."
+CODE = exit_not_applicable
+
+# vim: set filetype=ini:

src/builtins/pass.mdef

+[preupgrade]
+author = Joe "Built-In" Example <joe@example.com>
+
+[MODULE]
+GROUP = preupgrade_assistant_fupath__builtin
+NAME = pass
+CODE = solution_file "No solution needed, actually."
+CODE = exit_pass
+
+# vim: set filetype=ini:

src/preupg.sh.skel

+#!/bin/bash
+
+#
+# preupgrade-assistant testing utilities
+#
+# This ASRT module contains various functions to support testing of
+# preupgrade-assistant and its modules.  Refer to specific functions
+# for details.
+#
+
+shellfu import dist
+shellfu import jat_dump
+shellfu import preupg_fupath
+shellfu import pxpath
+
+#
+# Default rule id (XCCDF) to parse data from
+#
+PREUPG__RULE=${PREUPG__RULE:-}
+
+#
+# Regex to filter rules (XCCDF ids) to only run by preupg__run1()
+#
+PREUPG__RULE_REGEX=${PREUPG__RULE_REGEX:-.}
+
+#
+# Upgrade path
+#
+# This can be one of following:
+#
+#  *  To test with packaged upgrade paths, set this to the module
+#     package suffix, e.g. el6toel7.
+#
+#  *  To test with own generated upgrade path, set this to path
+#     to 'all-xccdf.xml' in the root of the upgrade path tree.
+#
+#  *  You can also use '@BUILTIN' alias to test with quick&trivial
+#     upgrade path, e.g. '@pass' to test with an upgrade path that
+#     simply passes.  For details in built-in paths, see
+#     `library(preupgrade-assistant/fupath)`
+#
+PREUPG__UPATH=${PREUPG__UPATH:-el6toel7}
+
+#
+# Valid exit statuses from preupg (ES_EX syntax)
+#
+# preupg__run1() will raise test failure if exit status does not
+# match this expression.  Format is described in jat documentation.
+# (See `sfdoc jat`.)
+#
+PREUPG__VALID_ES=${PREUPG__VALID_ES:-0-2}
+
+# FIXME: ^^^ Holy mess; see http://post-office.corp.redhat.com/archives/rhel-inplaceupgrades/2016-September/msg00011.html
+
+#
+# Override what packages are considered as native
+#
+# See preupg__run1() for details.
+#
+PREUPG__DISTNATIVE=${PREUPG__DISTNATIVE:-}
+
+#
+# Strip control characters from preupg stdout
+#
+# When TESTOUT.log et al. are acccessed using browsers, the control
+# characters in preupg will make many browsers treat the file as
+# binary, i.e. offer download instead of opening it.
+#
+# Set this variable to 'false' to keep the output verbatim.
+#
+PREUPG__STRIPCTL=${PREUPG__STRIPCTL:-true}
+
+preupg__assert() {
+    #
+    # Assert value of rule (module) result property
+    #
+    # Usage:
+    #     preupg__assert [-r RULE] [-N] FLD VALUE [[-N] FLD VALUE]
+    #
+    # In order for assert to pass, FLD must match VALUE.  If -N is passed,
+    # the meaning of assert is reversed, i.e. assert will fail if condition
+    # is satisfied.  Passing multiple pairs of FLD and VALUE performs
+    # multiple independent asserts with the added value of better log
+    # readability.
+    #
+    # For numeric fields, VALUE is matched for numeric equality.  For string
+    # fields, VALUE is matched as Basic Regular Expression.
+    #
+    # FLD can be:
+    #
+    #     risk - risk
+    #     risk.slight - slight risk
+    #     risk.medium - medium risk
+    #     risk.high - high risk
+    #     risk.extreme - extreme risk
+    #     riskn - number of risks
+    #     riskn.slight - number of slight risks
+    #     riskn.medium - number of medium risks
+    #     riskn.high - number of high risks
+    #     riskn.extreme - number of extreme risks
+    #     msg - message
+    #     msg.debug - debug message
+    #     msg.info - info message
+    #     msg.warning - warning message
+    #     msg.error - error message
+    #     msgn - number of messages
+    #     msgn.debug - number of debug messages
+    #     msgn.info - number of info messages
+    #     msgn.warning - number of warning messages
+    #     msgn.error - number of error messages
+    #     solution - solution text
+    #     result - module result
+    #
+    # By default, rule $PREUPG__RULE is queried, but you can
+    # override that using -r argument.  (It's mandatory to use at least one
+    # of these methods.)
+    #
+    local code
+    local usage="usage: preupg__assert [-r RULE] [-N] FLD VALUE [[-N] FLD VALUE].."
+    local Rule=$PREUPG__RULE
+    local conds=()
+    local Ellipsis=false
+    local cond
+    while true; do case $1 in
+        -r|--rule) Rule=$2; shift 2 || { jat__log_error "$usage"; return 2; } ;;
+        *)  break ;;
+    esac done
+    test -n "$Rule"  || {
+        jat__log_error "which rule to assert?  set \$PREUPG__RULE or use -r|--rule argument"
+        return 2
+    }
+    while true; do case $1 in
+        "")
+            break
+            ;;
+        -N)
+            conds+=("neg:${2,,}:$3")
+            shift 3 || {
+                jat__log_error "$usage"
+                return 2
+            }
+            ;;
+        *)
+            conds+=("pos:${1,,}:$2")
+            shift 2 || {
+                jat__log_error "$usage"
+                return 2
+            }
+            ;;
+    esac done
+    case ${#conds[@]} in
+        0)
+            jat__log_error "$usage"
+            return 2
+            ;;
+        1)
+            __preupg__assert1 "${conds[0]}"
+            return $?
+            ;;
+        *)
+            jat__log_info "rule $Rule has:"
+            for cond in "${conds[@]}";
+            do
+                Ellipsis=true __preupg__assert1 "$cond"
+            done
+            ;;
+    esac
+}
+
+preupg__dump_node() {
+    #
+    # Dump node of $PREUPG__RULE
+    #
+    preupg__get_node \
+      | jat_dump__pipe "NODE-${PREUPG__RULE}"
+}
+
+preupg__get_fixtext() {
+    #
+    # Get solution text (fixtext) of rule id $PREUPG__RULE
+    #
+    __preupg__resultxpath \
+        "//ns0:Rule[@id='$PREUPG__RULE']/ns0:fixtext/text()"
+}
+
+preupg__get_node() {
+    #
+    # Get whole result node from rule $PREUPG__RULE
+    #
+    __preupg__resultxpath \
+        "//ns0:rule-result[@idref='$PREUPG__RULE']"
+}
+
+preupg__get_result() {
+    #
+    # Get 'result' field from rule $PREUPG__RULE
+    #
+    __preupg__resultxpath \
+        "//ns0:rule-result[@idref='$PREUPG__RULE']/ns0:result/text()"
+}
+
+preupg__get_risks() {
+    #
+    # Get risks of severity $1 or all
+    #
+    # 'preupg.risk.' prefix is removed.  If severity is given, get only those
+    # risks and also that part of prefix is removed.
+    #
+    # For example,
+    #
+    #     $ PREUPG__RULE=xccdf_blah
+    #     $ preupg__get_risks
+    #     HIGH: foo
+    #     MEDIUM: bar
+    #     MEDIUM: baz
+    #     $ preupg__get_risks HIGH
+    #     foo
+    #     $
+    #
+    local sev=${1^^}
+    local outfn=preupg__get_stderr
+    $__PREUPG__LOSCAP \
+     && outfn=preupg__get_stdout
+    case $sev in
+        "")
+            $outfn \
+              | grep -E '^preupg\.risk\.(SLIGHT|MEDIUM|HIGH|EXTREME): ' \
+              | cut -d. -f3-
+            ;;
+        SLIGHT|MEDIUM|HIGH|EXTREME)
+            $outfn \
+              | grep -E "^preupg\.risk\.$sev: " \
+              | cut -d. -f3-
+            ;;
+        *)
+            jat__log_error "unknown risk severity: $sev"
+            return 2
+            ;;
+    esac
+}
+
+preupg__get_messages() {
+    #
+    # Get log messages of severity $1 or all
+    #
+    # 'preupg.log.' prefix is removed.  If severity is given, get only those
+    # messages and also that part of prefix is removed.
+    #
+    # For example,
+    #
+    #     $ PREUPG__RULE=xccdf_blah
+    #     $ preupg__get_messages
+    #     INFO: hello
+    #     INFO: Joe
+    #     DEBUG: lalala lalalala
+    #     $ preupg__get_messages DEBUG
+    #     lalala lalalala
+    #     $
+    #
+    local sev=${1^^}
+    local outfn=preupg__get_stderr
+    $__PREUPG__LOSCAP \
+     && outfn=preupg__get_stdout
+    case $sev in
+        "")
+            $outfn \
+              | grep -E '^preupg\.log\.(ERROR|WARNING|INFO|DEBUG): ' \
+              | cut -d. -f3-
+            ;;
+        ERROR|WARNING|INFO|DEBUG)
+            $outfn \
+              | grep -E "^preupg\.log\.$sev: " \
+              | cut -d. -f3-
+            ;;
+        *)
+            jat__log_error "unknown log message severity: $sev"
+            return 2
+            ;;
+    esac
+}
+
+preupg__get_stdout() {
+    #
+    # Get stdout of rule $PREUPG__RULE (eg. for grepping risks)
+    #
+    __preupg__resultxpath \
+        "//ns0:rule-result[@idref='$PREUPG__RULE']/ns0:check/ns0:check-import[@import-name='stdout']/text()"
+}
+
+preupg__get_stderr() {
+    #
+    # Get stderr of rule $PREUPG__RULE (eg. for grepping risks)
+    #
+    preupg__haslim loscap
+    __preupg__resultxpath \
+        "//ns0:rule-result[@idref='$PREUPG__RULE']/ns0:check/ns0:check-import[@import-name='stderr']/text()"
+}
+
+preupg__collect_stderrs() {
+    #
+    # Collect stderrs of all rules, prefix by rule id
+    #
+    local ruleid
+    preupg__haslim loscap
+    __preupg__lsrules_xml \
+      | while read -r ruleid;
+        do
+            __preupg__resultxpath \
+                "//ns0:rule-result[@idref='$ruleid']/ns0:check/ns0:check-import[@import-name='stderr']/text()" \
+              | sed -e "s/^/$ruleid: /"
+        done
+}
+
+preupg__collect_stray() {
+    #
+    # Collect stray outputs (ie. not risks or log messages), prefix by rule id
+    #
+    local tmp
+    local ruleid
+    preupg__haslim loscap && {
+        __preupg__collect_stray_loscap
+        return $?
+    }
+    tmp=$(mktemp -td preupg__collect_stray.XXXXXXXX)
+    pushd "$tmp" >/dev/null
+        __preupg__lsrules_xml \
+          | while read -r ruleid;
+            do
+                __preupg__resultxpath \
+                    "//ns0:rule-result[@idref='$ruleid']/ns0:check/ns0:check-import[@import-name='stdout']/text()" \
+                    >"stdout"
+                __preupg__resultxpath \
+                    "//ns0:rule-result[@idref='$ruleid']/ns0:check/ns0:check-import[@import-name='stderr']/text()" \
+                    >"stderr"
+                test -s "stdout" && sed -e "s/^/$ruleid:stdout: /" "stdout"
+                test -s "stderr" || continue
+                <"stderr" grep -v -E \
+                    -e '^preupg\.log\.(ERROR|WARNING|INFO|DEBUG): ' \
+                    -e '^preupg\.risk\.(SLIGHT|MEDIUM|HIGH|EXTREME): ' \
+                    > "stderr.stray"
+                grep -q . "stderr.stray" || continue
+                sed -e "s/^/$ruleid:stderr: /" <"stderr.stray"
+            done
+    popd >/dev/null
+    rm -r "$tmp"
+}
+
+preupg__lsrules_ast() {
+    #
+    # List selected rules from last asssessment result
+    #
+    __preupg__lsrules_xml
+}
+
+preupg__rmresult() {
+    #
+    # Remove assessment results
+    #
+    # Keeps cache and logs; use preupg__Cleanup() to clean
+    # up after test.
+    #
+    jat__cmd rm -rf /root/preupgrade
+    jat__cmd rm -rf /root/preupgrade-results
+}
+
+preupg__Run1() {
+    #
+    # Create phase and just run preupg__run1 $@
+    #
+    # Wrapper around preupg__run1() with phase creation.
+    # Call this before starting case loop such as xcase__run(),
+    # where you would try out multiple cache-independent cases.
+    #
+    jat__pstarts "run preupg once"
+        preupg__run1 "$@"
+    jat__pend
+}
+
+preupg__Cleanup() {
+    #
+    # Create final cleanup phase (submit & full cleanup)
+    #
+    # If results (tarball) are found, jat__submit() them (tarball and
+    # html and xml). Finally clean up results, logs and cache.
+    #
+    # Pass -n to skip submitting of the results.
+    #
+    local submit=true
+    test "x$1" == "-n" && submit=false
+    jat__pstartc
+        # we assume that if tarball exists, html and xml both exist
+        # as well.
+        if $submit \
+            && test -n "$(preupg__get_latest_tar)";
+        then
+            jat__submit "/root/preupgrade/result.html" "result.html"
+            jat__submit "/root/preupgrade/result.xml" "result.xml"
+            jat__submit "$(preupg__get_latest_tar)"
+        fi
+        preupg__rmresult
+    jat__pend
+}
+
+preupg__run1() {
+    #
+    # Run preupg once without interaction; pass $@ down
+    #
+    # Runs preupg with --force argument (to suppress questions) and performs
+    # additional checks on assessment. Any arguments to this function are
+    # simply passed down to the preupg call (after any arguments needed
+    # for overrides, see below).
+    #
+    # Exit status is normally same as exit status from preupg, but statuses
+    # defined in $PREUPG__VALID_ES don't cause assert fail
+    # (these normally represent upgrade risk level so are considered "normal").
+    # However, if additional checks done by this routine fail, exit status
+    # is increased by 100.
+    #
+    # Several overrides can be specified via following global
+    # variables:
+    #
+    #  *  If $PREUPG__RULE_REGEX was specified, modules
+    #     are selected using that regular expression and passed down
+    #     using --select-rules parameter.
+    #
+    #  *  If $PREUPG__DISTNATIVE is specified, preupg config
+    #     is altered for this run to override what packages are treated
+    #     as native.  The variable may have following values:
+    #
+    #       *  `sign` - packages signed by vendor (default preupg behavior)
+    #       *  `all` - all installed packages
+    #       *  `-NAME1[,-NAME2,..]` - all currently installed packages
+    #          except NAME1, NAME2 and so on
+    #       *  `/path/to/list` - only packages listed in the file (names)
+    #
+    #  *  If $PREUPG__UPATH points to path to all-xccdf.xml,
+    #     or has form of built-in fake path (`@*`) custom upgrade path is
+    #     used. (see `$PREUPG__UPATH` for details`)
+    #
+    # Note that these overrides only affect the single run; i.e. runs
+    # outside this function work normally, and you can change mentioned
+    # variables between run.
+    #
+    jat__log_info "PREUPG__UPATH='$PREUPG__UPATH'"
+    jat__log_info "PREUPG__RULE_REGEX='$PREUPG__RULE_REGEX'"
+    jat__log_info "PREUPG__DISTNATIVE='$PREUPG__DISTNATIVE'"
+    local es=0          # exit status
+    local run1tmp       # our temporary dir
+    run1tmp="$(mktemp -d -t preupg__run1.XXXXXXXX)"
+    __preupg__mkfupath_builtin
+    __preupg__dno_enable
+    case "$PREUPG__RULE_REGEX" in
+        .|"")  __preupg__preupg "$@"
+            es=$?
+            ;;
+        *)  __preupg__preupg \
+                --select-rules "$(__preupg__lsrules_upath | paste -sd,)" \
+                "$@"
+            es=$?
+            ;;
+    esac
+    __preupg__dno_disable
+    rm -r "$run1tmp"
+    # Additional checks
+    if preupg__collect_stray | grep -q .;
+    then
+        jat__fail "stray module output found"
+        preupg__collect_stray \
+          | jat_dump__pipe -E STRAY_OUTPUT
+        es=$((100 + es))
+    fi
+    return $es
+}
+
+preupg__get_latest_tar() {
+    #
+    # Print path to latest tarball; false if there was none
+    #
+    test -d /root/preupgrade-results || {
+        warn "no result found; has preupg been run?"
+        return 3
+    }
+    find /root/preupgrade-results \
+        -name "preupg_results-*.tar.gz" \
+      | sort -n \
+      | tail -1 \
+      | grep .      # grep to normalize exit status
+}
+
+preupg__tar_extract() {
+    #
+    # Extract last tarball and print path to the extracted directory
+    #
+    local tarball_path
+    local dirname
+    tarball_path=$(preupg__get_latest_tar)
+    dirname=${tarball_path##*/}
+    dirname=${dirname%.tar.gz}
+    {
+        jat__cmd -h "tarball found" \
+            test -n "$tarball_path" \
+         || return 3
+        jat__cmd -h "tarball extracted" \
+            tar -xzf "$tarball_path" \
+         || return 3
+        jat__cmd -h "directory present" \
+            test -d "$dirname" \
+         || return 3
+    } >&2
+    echo "$dirname"
+}
+
+preupg__tar_list() {
+    #
+    # Print contents of latest tarball
+    #
+    local tarball_path
+    local dirname
+    tarball_path=$(preupg__get_latest_tar) || return 3
+    {
+        jat__cmd -h "tarball found" \
+            test -n "$tarball_path" \
+         || return 3
+        jat__cmd -h "tarball listable" \
+            tar -tzf "$tarball_path" \
+         || return 3
+    } >&2
+    tar -tzf "$tarball_path"
+}
+
+__preupg__shellfu_init__() {
+    #
+    # Inialization check hook (called by shellfu)
+    #
+    dist__test ver vlt '6.9' && {
+        jat__log_warning \
+            "=============================================================" \
+            " : Old buggy version of OpenSCAP is in use:                :" \
+            " :                                                         :" \
+            " :     $(rpm -q openscap)                     :" \
+            " :                                                         :" \
+            " : This means that capabilities of this test library will  :" \
+            " : be limited, because stderr from module scripts will be  :" \
+            " : always reported as empty, while its content will be     :" \
+            " : into stdout.                                            :" \
+            " :                                                         :" \
+            " : See https://bugzilla.redhat.com/show_bug.cgi?id=1309491 :" \
+            "============================================================="
+        __PREUPG__LOSCAP=true
+    }
+    case "$PREUPG__UPATH" in
+        el5toel7|el6toel7)  true ;;
+        */all-xccdf.xml)    true ;;
+        @*)                 true ;;
+        *)                  jat__log_error \
+                            "unknown upgrade path: $PREUPG__UPATH" ;;
+    esac
+}
+
+preupg__haslim() {
+    #
+    # True and emit warn test reader if limitation $1 is in place
+    #
+    # Usage:
+    #
+    #     preupg__haslim LIM [EFFECT]
+    #
+    # If limitation LIM is in place, print warning and exit with zero
+    # otherwise exit with one if LIM is not in place and 2 if LIM is not
+    # known.
+    #
+    # Warning will mention calling function and describe limitation in
+    # general; you can provide simple EFFECT (few words) to describe
+    # how the limitation affects the particular test context.
+    #
+    # Known LIMs are:
+    #
+    #  *  `loscap` - legacy OpenSCAP: module stderr is merged into its
+    #     stdout.
+    #
+    local limitation=$1
+    local effect=$2
+    local parent=${FUNCNAME[1]}
+    case $limitation in
+        loscap)     # legacy openscap
+            $__PREUPG__LOSCAP || return 1
+            test -n "$effect" || effect="see bz1309491"
+            jat__log_warning "$parent(): old openscap is in use; $effect"
+            return 0
+            ;;
+    esac
+    jat__log_error "invalid limitation: $limitation"
+    return 2
+}
+
+
+#          #                    there is something wrong with this world #
+# INTERNAL # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #
+#          #            by crossing this line you are making it stronger #
+
+#
+# Have we touched preupg conf already?
+#
+__PREUPG__CFG_DIRTY=${__PREUPG__CFG_DIRTY:-false}
+
+
+#
+# True if we should work with legacy openscap
+#
+# Old openscap (pre openscap-1.2.13-2.el6) merges stderr into stdout so we need
+# to alter risk filtering.
+#
+__PREUPG__LOSCAP=false
+
+__preupg__preupg() {
+    #
+    # Run preupg with --force, maybe --contents and maybe other args
+    #
+    local args=()
+    local hints=()
+    local es=0
+    local valid_es=$PREUPG__VALID_ES
+    args+=(--force)
+    case $PREUPG__UPATH in
+        */*)
+            args+=(--contents "$PREUPG__UPATH")
+            hints+=(" (custom content set)")
+            ;;
+        @*)
+            args+=(--contents "$(<"$run1tmp/builtin_path")") \
+             || return 3
+            hints+=(" (built-in fake content set $PREUPG__UPATH)")
+            ;;
+    esac
+    test -n "$*" \
+     && args+=("$@") \
+     && hints+=(" ($*)")
+    jat__log_info "PWD='$PWD'"      # help to hunt for things like bz1380120
+    jat__cmd -h "Run preupgrade assistant${hints[*]}" \
+        -S "$valid_es" \
+        -o "$run1tmp/out" -e "$run1tmp/err" \
+        preupg "${args[@]}"
+    es=$?
+    case $PREUPG__STRIPCTL in
+        false)
+            <"$run1tmp/out" jat_dump__pipe -l 400 -b 30000 PREUPG_OUT
+            ;;
+        true)
+            <"$run1tmp/out" tr -dc '[:graph:]\n\t ' \
+              | jat_dump__pipe -l 400 -b 30000 PREUPG_OUT_STRIPPED
+            ;;
+    esac
+    < "$run1tmp/err" jat_dump__pipe -E PREUPG_ERR
+    return $es
+}
+
+__preupg__mkfupath_builtin() {
+    #
+    # Ad-hoc path using built-in preupg_fupath() template
+    #
+    # This whole process is heavily complicated by weird behavior of preupg
+    # and its tools':
+    #
+    #  *  You can't just come up with any name for an upgrade path; this
+    #     means the directory name is basically prescribed depending on
+    #     source (and destination) distro.
+    #
+    #  *  The build tool will only generate prescribed path (the above,
+    #     suffixed by '-results').
+    #
+    #  *  The same path *won't* work with preupg; you have to manually rename
+    #     it back to the "prescribed"
+    #
+    # In the end, `preupg_fupath()` has to use at least three
+    # different paths and has no way of avoiding path conflict.  Its API
+    # partially avoids the problem by making the name a mandatory (=explicit)
+    # argument and stating clearly in the docs that these paths would be
+    # removed before generation.
+    #
+    # The point of this function, though, is to be easy on user; this means
+    # we'll be implicit wherever we can, at the price of being relatively
+    # fragile.
+    #
+    # Hence the unfunny and frustrating checks below.
+    #
+    test "${PREUPG__UPATH:0:1}" = @ || return 0
+    local name
+    {
+        dist__test ver.x eq 5 && name=RHEL5_7
+        dist__test ver.x eq 6 && name=RHEL6_7
+        test -n "$name" || {
+            jat__log_error "could not choose fake upath name (this works only on RHEL5/RHEL6)"
+            return 3
+        }
+        test -e "$name" -o -e "$name-results" -o "$name-raw" || {
+            jat__log_error "these must not exist for '@BUILTIN' form to work: $name, $name-results $name-raw"
+            return 3
+        }
+        preupg_fupath "$name" "$PREUPG__UPATH"
+    } >&2   #FIXME: remove block andredirect after bz1171881
+    echo "$name/all-xccdf.xml" > "$run1tmp/builtin_path"
+}
+
+__preupg__mknatlist() {
+    #
+    # Make list of "native" packages to override and show the path
+    #
+    local ex        # single expression from PREUPG__DISTNATIVE
+    tr , '\n' <<<"$PREUPG__DISTNATIVE" \
+      | grep . \
+      | while read -r ex;
+        do
+            case "$ex" in
+                -*) echo "${ex:1}" >> "$run1tmp/dno_exclude" ;;
+                *)  jat__log_error "invalid expression in PREUPG__DISTNATIVE: $ex"
+                    echo /dev/null
+                    return 1 ;;
+            esac
+        done
+    rpm -qa --qf '%{N}\n' \
+      | sort \
+      | uniq \
+      | grep -vxFf "$run1tmp/dno_exclude" \
+      > "$run1tmp/dno_list"
+    echo "$run1tmp/dno_list"
+}
+
+__preupg__dno_enable() {
+    #
+    # Enable "dist_native" override, if need be
+    #
+    test -n "$PREUPG__DISTNATIVE" || return 0
+    jat__eval -h "enable devel_mode" \
+        "mkdir -p /var/cache/preupgrade; touch /var/cache/preupgrade/devel_mode"
+    __preupg__cfgbak
+    {
+        echo "[devel-mode]"
+        echo -n "dist_mode="
+        case "$PREUPG__DISTNATIVE" in
+            all|sign|*/*) echo "$PREUPG__DISTNATIVE" ;;
+            *)            __preupg__mknatlist        ;;
+        esac
+    } >> /etc/preupgrade-assistant.conf
+}
+
+__preupg__dno_disable() {
+    #
+    # Disable "dist_native" override, if need be
+    #
+    test -n "$PREUPG__DISTNATIVE" || return 0
+    jat__cmd -h "disable devel_mode" \
+        rm -f /var/cache/preupgrade/devel_mode
+    __preupg__cfgrest
+}
+
+__preupg__cfgbak() {
+    #
+    # Back up preupg conf
+    #
+    jat__filebackup -n "preupg__cfgbak" \
+      /etc/preupgrade-assistant.conf
+}
+
+__preupg__cfgrest() {
+    #
+    # Restore preupg conf, if needed
+    #
+    $__PREUPG__CFG_DIRTY || true
+    jat__log_info "config before restoring:"
+    jat_dump__file /etc/preupgrade-assistant.conf
+    jat__filerestore -n "preupg__cfgbak"
+}
+
+__preupg__assert_mkcode() {
+    #
+    # Make Bash code for generating field values
+    #
+    echo -n "PREUPG__RULE=$Rule "
+    case $Field in
+        risk)           echo "preupg__get_risks"                    ;;
+        risk.slight)    echo "preupg__get_risks SLIGHT"             ;;
+        risk.medium)    echo "preupg__get_risks MEDIUM"             ;;
+        risk.high)      echo "preupg__get_risks HIGH"               ;;
+        risk.extreme)   echo "preupg__get_risks EXTREME"            ;;
+        riskn)          echo "preupg__get_risks | wc -l"            ;;
+        riskn.slight)   echo "preupg__get_risks SLIGHT | wc -l"     ;;
+        riskn.medium)   echo "preupg__get_risks MEDIUM | wc -l"     ;;
+        riskn.high)     echo "preupg__get_risks HIGH | wc -l"       ;;
+        riskn.extreme)  echo "preupg__get_risks EXTREME | wc -l"    ;;
+        msg)            echo "preupg__get_messages"                 ;;
+        msg.debug)      echo "preupg__get_messages DEBUG"           ;;
+        msg.info)       echo "preupg__get_messages INFO"            ;;
+        msg.warning)    echo "preupg__get_messages WARNING"         ;;
+        msg.error)      echo "preupg__get_messages ERROR"           ;;
+        msgn)           echo "preupg__get_messages | wc -l"         ;;
+        msgn.debug)     echo "preupg__get_messages DEBUG | wc -l"   ;;
+        msgn.info)      echo "preupg__get_messages INFO | wc -l"    ;;
+        msgn.warning)   echo "preupg__get_messages WARNING | wc -l" ;;
+        msgn.error)     echo "preupg__get_messages ERROR | wc -l"   ;;
+        solution)       echo "preupg__get_fixtext"                  ;;
+        result)         echo "preupg__get_result"                   ;;
+        *)              jat__log_error "unsupported field: $Field"; return 2  ;;
+    esac
+}
+
+__preupg__assert_mkvalid_code() {
+    #
+    # Make Bash code, true if valid
+    #
+    local code
+    code=$(__preupg__assert_mkcode) || return $?
+    bash -n <<<"$code" && {
+        echo "$code"
+        return 0
+    }
+    jat__log_error "bug: bad assert code generated: '$code'"
+    return 3
+}
+
+__preupg__assert_mkhint() {
+    #
+    # Compose hint for assert
+    #
+    local fphrase   # English field phrase
+    local s         # 's' if $Value is plural, empty otherwise
+    local a='a'     # 'a' or 'an', based on what's proper
+    test "$Value" = 1 || s="s"
+    case $Field in
+        result)         fphrase="result"              ;;
+        risk|riskn)     fphrase="risk"                ;;
+        msg|msgn)       fphrase="message"             ;;
+        solution)       fphrase="solution text"       ;;
+        risk.*|riskn.*) fphrase="${Field#*.} risk"    ;;
+        msg.*|msgn.*)   fphrase="${Field#*.} message" ;;
+    esac
+    case ${Field#*.} in
+        error|extreme|info) a='an'  ;;
+    esac
+    case $Ellipsis in
+        false)  echo -n "rule $Rule has " ;;
+        true)   echo -n "   ... " ;;
+    esac
+    case $Mode:$Type in
+        pos:str)    echo "$a $fphrase matching '$Value'"  ;;
+        neg:str)    echo "no $fphrase matching '$Value'"  ;;
+        pos:int)    echo "exactly $Value $fphrase$s"      ;;
+        neg:int)    echo "other than $Value $fphrase$s"   ;;
+    esac
+}
+
+__preupg__assert1() {
+    #
+    # Perform one assertion with condition $1 with rule $Rule
+    #
+    # This does one iteration of preupg__assert
+    #
+    local Mode
+    local Field
+    local Value
+    local es=0
+    local code
+    local hint
+    local Type
+    local tmp=$1            # tmp='MODE:FIELD:VA:L:UE'
+    Mode=${tmp%%:*}         # 'MODE'
+    tmp=${tmp#$Mode:}       # tmp='FIELD:VA:L:UE'
+    Field=${tmp%%:*}        # 'FIELD'
+    Value=${tmp#$Field:}    # 'VA:L:UE'
+    Type=$(__preupg__assert_op4fld)       || return $?
+    code=$(__preupg__assert_mkvalid_code) || return $?
+    hint=$(__preupg__assert_mkhint)
+    case $Mode in
+        pos)    es=0 ;;
+        neg)    es=1 ;;
+    esac
+    case $Type in
+        int)    jat__eval -S $es -h "$hint" "test $(eval "$code") -eq $Value" ;;
+        str)    jat__eval -S $es -h "$hint" "$code | grep '$Value'"           ;;
+    esac
+}
+
+__preupg__collect_stray_loscap() {
+    #
+    # Legacy version of preupg__collect_stray()
+    #
+    local tmp
+    local ruleid
+    tmp=$(mktemp -td preupg__collect_stray.XXXXXXXX)
+    pushd "$tmp" >/dev/null
+        __preupg__lsrules_xml \
+          | while read -r ruleid;
+            do
+                __preupg__resultxpath \
+                    "//ns0:rule-result[@idref='$ruleid']/ns0:check/ns0:check-import[@import-name='stdout']/text()" \
+                    >"stdout"
+                test -s "stdout" || continue
+                <"stdout" grep -v -E \
+                    -e '^preupg\.log\.(ERROR|WARNING|INFO|DEBUG): ' \
+                    -e '^preupg\.risk\.(SLIGHT|MEDIUM|HIGH|EXTREME): ' \
+                    > "stdout.stray"
+                grep -q . "stdout.stray" || continue
+                sed -e "s/^/$ruleid:stdout: /" <"stdout.stray"
+            done
+    popd >/dev/null
+    rm -r "$tmp"
+}
+
+__preupg__assert_op4fld() {
+    #
+    # Print correct operator for field $Field
+    #
+    case $Field in
+        result|risk|risk.*|msg|msg.*|solution)  echo str ;;
+        riskn|riskn.*|msgn|msgn.*)              echo int ;;
+        *) jat__log_error "unsupported field: $Field"; return 2  ;;
+    esac
+}
+
+__preupg__lsrules_upath() {
+    #
+    # List preupg rule ids from upgrade path
+    #
+    local upname        # upgrade path name
+    case "$PREUPG__UPATH" in
+        el6toel7)           upname='RHEL6_7' ;;
+        el5toel7)           upname='RHEL5_7' ;;
+        @*)                 upname="$(basename "$(dirname "$(<"$run1tmp/builtin_path")")")" ;;
+        */all-xccdf.xml)    upname="$(basename "$(dirname "$PREUPG__UPATH")")" ;;
+        *) jat__log_error "unsupported upgrade path: $PREUPG__UPATH" ;;
+    esac
+    #FIXME: after bz1362708, use proper CLI --list-rules for both
+    case "$PREUPG__UPATH" in
+        @*)
+            cat "$(dirname "$(<"$run1tmp/builtin_path")")/list_rules"
+            ;;
+        */all-xccdf.xml)
+            cat "$(dirname "$PREUPG__UPATH")/list_rules"
+            ;;
+        *)
+            preupg --list-rules
+            ;;
+    esac \
+      | grep "$PREUPG__RULE_REGEX" \
+      | sed -e "s/^$upname://"
+}
+
+__preupg__lsrules_xml() {
+    #
+    # List preupg rule ids from result.xml
+    #
+    __preupg__resultxpath \
+        "//ns0:rule-result[./ns0:result/text() != 'notselected']/@idref"
+}
+
+__preupg__resultxpath() {
+    #
+    # Run XPath query $1 on result.xml inside tarball $2 or latest
+    #
+    # Take XPath query $1, run it on result.xml and print output.
+    #
+    # Notes: libxml2-python was, as finally turns out, the only usable
+    #        implementation available on RHEL5
+    #
+    local xpath=$1
+    local tarfile=$2
+    local inpath        # path inside tarfile
+    test -n "$xpath" || {
+        jat__log_error "empty XPath query"
+        return 2
+    }
+    test -n "$tarfile" || tarfile=$(preupg__get_latest_tar)
+    test -n "$tarfile" || {
+        jat__log_error "No tarfile found. Either run preupg or provide tarfile on command line"
+        return 2
+    }
+    inpath=${tarfile##*/}
+    inpath=${inpath%.tar.gz}
+    tar -zf "$tarfile" -O -x "$inpath/result.xml" \
+      | pxpath \
+        "$xpath" - \
+        "xhtml:http://www.w3.org/1999/xhtml" \
+        "html:http://www.w3.org/1999/xhtml" \
+        "ns0:http://checklists.nist.gov/xccdf/1.2"
+}
+
+#shellfu module-version=__MKIT_PROJ_VERSION__

src/preupg_fupath.sh.skel

+#!/bin/bash
+
+shellfu import jat
+shellfu import pretty
+shellfu import jat_dump
+
+#
+# fake upgrade path generator
+#
+# This beakerlib module helps generate mock upgrade paths for purposes
+# of testing preupgrade-assistant.
+#
+#
+# =head1 HELLO WORLD
+#
+#     {
+#         echo '[preupgrade]'
+#         echo 'description = hello world module'
+#         echo '[MODULE]'
+#         echo 'GROUP = foo'
+#         echo 'NAME = bar'
+#         echo 'LANG = py'
+#         echo 'CODE = log_info('hello world')'
+#         echo 'CODE = exit_informational()'
+#     } > one.mdef
+#     preupg_fupath RHEL6_7 one.mdef
+#     preupg__upath=RHEL6_7/all-xccdf.xml
+#     preupg__run1
+#
+# would generate:
+#
+#     RHEL6_7
+#     └── foo
+#         └── bar
+#             ├── module.ini
+#             └── check
+#
+#
+# =head1 OVERVIEW
+#
+# The workflow is following:
+#
+#  1. Per each upgrade path module, generate a pseudo-INI
+#     file, defining properties and content of the module.
+#
+#  2. Call preupg_fupath() to generate the
+#     upgrade path for you, using standard tools under the
+#     hood.
+#
+#  3. Call preupg (or better, preupg__run1()
+#     from preupgrade-assistant/main) to use the upgrade path.
+#
+#
+# =head1 FORMAT
+#
+# A fuller example:
+#
+#      [preupgrade]
+#      content_description = test module bob
+#      content_title = test module bob
+#
+#      [MODULE]
+#      GROUP = system
+#      NAME = foo
+#      LANG = sh
+#      CODE = log_medium_risk foo
+#      CODE = exit_pass
+#
+#      [FILES]
+#      solution.txt = Some text
+#      solution.txt = Some more text
+#      myfile.txt = first line of an arbitrary file
+#      myfile.txt = second line of of an arbitrary file
+#
+#  *  Fields from "preupgrade" section are directly copied to
+#     used the actual module.ini.
+#
+#  *  MODULE section should contain GROUP, NAME and a multi-line
+#     CODE of the module.  GROUP and NAME define placement of
+#     the module in the tree, CODE will be appended to the
+#     auto-generated script.
+#
+#     LANG key is 'sh' for Bash (default) and 'py' for Python.
+#
+#  *  FILES section can be used to include any number of plain
+#     text files (such as a hook scripts or config files) inside
+#     the module.   Here key name is name of the file and key
+#     content is content of the file.
+#
+# Virtually any field may be omitted; the generator will try to
+# fill in as much as possible (even generate names from random
+# chars).
+#
+# FILES section may be used to fully overwrite any other files
+# (even module.ini file!).  This is useful to test "extreme" cases such
+# as empty or malformed module.ini file, while retaining feature of
+# auto-generation mentioned above.
+#
+#
+# =head2 Indentation
+#
+# Multi-line values (CODE and values from FILES section) are
+# read in a way that preserves indentation by removing as many
+# spaces from first column as possible without removing other
+# characters.  For example, following sections:
+#
+#     CODE = def blah():
+#     CODE =   pass
+#     CODE =
+#     CODE = for p in get_dist_native_list():
+#     CODE =   blah()
+#
+#     CODE =     def blah():
+#     CODE =       pass
+#     CODE =
+#     CODE =     for p in get_dist_native_list():
+#     CODE =       blah()
+#
+#     CODE =def blah():
+#     CODE =  pass
+#     CODE =
+#     CODE =for p in get_dist_native_list():
+#     CODE =  blah()
+#
+# would result in exactly the same code:
+#
+#     def blah():
+#       pass
+#
+#     for p in get_dist_native_list():
+#       blah()
+#
+# This is in order to enable generation of valid Python scripts
+# while enabling maximum readability of your test code.
+#
+
+
+preupg_fupath() {
+    #
+    # Create custom test upgrade path from pseudo-INI files
+    #
+    # Usage:
+    #     preupg_fupath UPATH [./FILE]...
+    #
+    # UPATH must be in form CCCN_N, where C is letter from alphabet,
+    # N is a decimal integer number and '_' is literally underscore.
+    #
+    # Note: folders UPATH, UPATH-raw and UPATH-results in current
+    #       folder will be silently deleted!
+    #
+    #
+    # If FILE argument starts with "at sign" (`@`), it will be interpreted
+    # as name of a built-in .mdef file included within this library; look
+    # into "builtins" subfolder; the alias can be constructed as path
+    # to .mdef file relative to that folder, with .mdef suffix stripped.
+    #
+    # For example,
+    #
+    #       preupg_fupath RHEL6_7 @pass @failed some/other.mdef
+    #
+    # will construct upgrade path named RHEL6_7 with three modules based on
+    # two built-in files and one custom file.
+    #
+    # To launch generated upgrade path, specify it to preupg using
+    # `-c` parameter pointing to file all-xccdf.xml under folder
+    # <UPATH>, for example:
+    #
+    #     preupg --force -c RHEL6_7/all-xccdf.xml
+    #
+    # Recommended practice, though, is to set preupg__upath
+    # to the path as above and use preupg__run1:
+    #
+    #     shellfu import preupg
+    #     ...
+    #     preupg_fupath RHEL6_7 foo.mdef bar.mdef
+    #     preupg__upath=RHEL6_7/all-xccdf.xml
+    #     preupg__run1
+    #
+    # which will enable lot of additional checks.
+    #
+
+    local UPName=$1; shift      # upgrade path name
+    local MdefFile              # each Mdef file
+    local Adding=false          # true: we're adding into existing upath (iteration 2+)
+    local b_file=""             # built-in .mdef file
+    local MdefFileNick          # Shorter .mdef File reference (usable if built-in)
+    local Tmp                   # our temp dir
+    Tmp=$(mktemp -dt preupg_fupath.XXXXXXXX)
+    jat__cmd rm -rf "$UPName" "$UPName-raw" "$UPName-results"
+    for MdefFile in "$@";
+    do
+        MdefFileNick=$MdefFile
+        test "${MdefFile:0:1}" == @ && {
+            b_file=$(_preupg_fupath__builtin "$MdefFile") || return 2
+        jat__log_info "using built-in .mdef file: $MdefFile=${b_file#$_PREUPG_FUPATH__HOMEDIR/}"
+            MdefFile=$b_file
+        }
+        _preupg_fupath__mdef2module
+        Adding=true
+    done
+    _preupg_fupath__cook_tree "$UPName"
+    rm -r "$Tmp"
+}
+
+#          #                 don't jump around too much beyond this line #
+# INTERNAL # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #
+#          #                                        it's not a safe path #
+
+#
+# Library data dir (set during build)
+#
+_PREUPG_FUPATH__HOMEDIR=__SHELLFU_MODHOME__
+
+_preupg_fupath__builtin() {
+    #
+    # Show path of built-in .mdef file (if exists, else fail)
+    #
+    local b_file=$_PREUPG_FUPATH__HOMEDIR/builtins/${1:1}.mdef
+    test -f "$b_file" || {
+        jat__log_error "no such built-in: $b_file"
+        return 2
+    }
+    echo "$b_file"
+}
+
+_preupg_fupath__cook_tree() {
+    #
+    # Create proper compose from raw tree
+    #
+    local tree=$1
+    jat__cmd -h "build upgrade path" \
+        preupg-xccdf-compose "$tree"
+    jat__eval -h "put upgrade path in place" \
+        "mv '$tree' '$tree-raw' && mv '$tree-results' '$tree'"
+    find "$tree-raw" "$tree" | jat_dump__pipe -D FOREST
+}
+
+_preupg_fupath__draw_token() {
+    #
+    # Get a unique token
+    #
+    head -c 100 /dev/urandom | md5sum | head -c 5
+}
+
+_preupg_fupath__mdef2module() {
+    #
+    # Process single .mdef
+    #
+    local m_afile           # additional file
+    local m_code_body       # module code body (after auto-header)
+    local m_description     # module description
+    local m_srcmaj=6        # source OS version         #FIXME: don't hard-code this
+    local m_dstmaj=7        # destination OS version    #FIXME: don't hard-code this
+    local m_group           # module group name
+    local m_name            # module name
+    local m_lang            # module language ('sh' for Bash or 'py' for Python)
+    local m_title           # module title
+    local newmod_path       # new module's subpath (derived from other parts)
+
+    # Read starting values from $MdefFile or make them up
+    #
+    jat_dump__file -D "$MdefFile"
+    m_group=$(_preupg_fupath__ini 1value "MODULE:GROUP")
+    m_name=$(_preupg_fupath__ini 1value "MODULE:NAME")
+    m_lang=$(_preupg_fupath__ini 1value "MODULE:LANG")
+    m_code_body=$(_preupg_fupath__ini values "MODULE:CODE")
+    m_title=$(_preupg_fupath__ini 1value "preupgrade:content_title")
+    m_description=$(_preupg_fupath__ini 1value "preupgrade:content_description")
+    test -n "$m_group"              || m_group="group_$(_preupg_fupath__draw_token)"
+    test -n "$m_name"               || m_name="module_$(_preupg_fupath__draw_token)"
+    test -n "$m_lang"               || m_lang="sh"
+    test -n "$m_code_body"          || m_code_body="exit_pass"
+    test -n "$m_title"              || m_title="Mock module named $m_name"
+    test -n "$m_description"        || m_description="This is just a testing module named $m_name"
+    debug -v m_group m_name m_lang m_code_body m_title m_description
+
+    # create new module (most fields will be overwritten)
+    #
+    {
+        echo "$UPName"              # upgrade path name (also relative path)
+        $Adding && echo y           # we need to confirm if we want to add into existing
+        $Adding || echo "$m_srcmaj"   # source OS version
+        $Adding || echo "$m_dstmaj"   # destination OS version
+        echo "$m_group"             # module group
+        echo "$m_name"              # module name
+        echo "$m_lang"              # module language
+        echo "$m_title"             # module title
+        echo "$m_description"       # module description
+    } >"$Tmp/answers"
+    jat_dump__file -D "$Tmp/answers"
+    jat__eval -h "create module: $m_name in group $m_group from $MdefFileNick" \
+        "preupg-content-creator <$Tmp/answers"
+    newmod_path="$UPName/$m_group/$m_name"
+
+    # add arbitrary values from $MdefFile
+    #
+    local extra_keys
+    extra_keys=$(
+    for key in $(_preupg_fupath__ini lskeys "preupgrade");
+        do
+            value=$(_preupg_fupath__ini 1value "preupgrade:$key")
+            grep "^$key *=" "$newmod_path/module.ini" && continue
+            test -n "$value" && echo "$key = $value"
+        done
+    )
+    debug -v extra_keys
+    echo "$extra_keys" >> "$newmod_path/module.ini"
+
+    # append CODE to module script
+    echo "$m_code_body" >> "$newmod_path/check"
+
+    # dump to keep context clear
+    #
+    jat_dump__file -D \
+        "$newmod_path/module.ini" \
+        "$newmod_path/check"
+
+    # add any arbitrary files stored in FILES section
+    #
+    for m_afile in $(_preupg_fupath__ini lskeys FILES);
+    do
+        test -n "$m_code_body" \
+         && test "$m_afile" == "check" \
+         && jat__log_warning "overwriting CODE by file from FILES section: $m_afile"
+        mkdir -p "$(dirname "$newmod_path/$m_afile")"
+        _preupg_fupath__ini values "FILES:$m_afile" \
+          > "$newmod_path/$m_afile"
+    done
+
+    debug -c find "$UPName"
+}
+
+_preupg_fupath__ini() {
+    #
+    # do ini operation
+    #
+    local op=$1
+    local arg=$2
+    local fn
+    local flt=_preupg_fupath__ini_cat
+    case $op in
+        lskeys) fn=_preupg_fupath__ini_lskeys   ;;
+        sec)    fn=_preupg_fupath__ini_grepsec  ;;
+        values) fn=_preupg_fupath__ini_greppath
+            flt=_preupg_fupath__ini_unind   ;;
+        1value) fn=_preupg_fupath__ini_greppath
+            flt=_preupg_fupath__ini_strip   ;;
+        *)      jat__log_error "incorrect use of \`_preupg_fupath__ini()\`"
+    esac
+    <"$MdefFile" $fn "$arg" | $flt
+}
+
+_preupg_fupath__ini_strip() {
+    #
+    # Strip a simple value
+    #
+    head -1 | sed 's/^ *//; s/ *$//'
+}
+
+_preupg_fupath__ini_unind() {
+    #
+    # Unindent multi-line value
+    #
+    local remove=0
+    local tmp
+    tmp=$(mktemp -dt _preupg_fupath__ini_unind.XXXXXXXX)
+    cat >"$tmp/body"
+    grep . "$tmp/body" | sed 's/[^ ].*$//' > "$tmp/air"
+    remove=$(sort "$tmp/air" | head -1 | wc -c)
+    ((remove--))    # newline
+    case $remove in
+        0)  cat "$tmp/body" ;;
+        *)  colrm 1 "$remove" < "$tmp/body" ;;
+    esac
+    rm -rf "$tmp"
+}
+
+_preupg_fupath__ini_cat() {
+    #
+    # A no-op for text stream
+    #
+    while IFS= read -r line;
+    do
+        printf -- "%s\n" "$line"
+    done
+}
+
+_preupg_fupath__ini_grepkey() {
+    #
+    # Read key from a section
+    #
+    local wnt=$1
+    grep -v '\s*#' \
+      | sed -e 's/ *=/=/;' \
+      | grep -e "^$wnt=" \
+      | cut -d= -f2-
+}
+
+_preupg_fupath__ini_greppath() {
+    #
+    # Read key from the right section
+    #
+    # E.g. `files:share:my/lib.sh` should read
+    #
+    #     [files:share]
+    #         my/lib.sh   = proj/my/lib.sh
+    #
+    local wnt="$1"
+    local wntkey="${wnt##*:}"
+    local wntsec="${wnt%:$wntkey}"
+    _preupg_fupath__ini_grepsec "$wntsec" \
+        | _preupg_fupath__ini_grepkey "$wntkey"
+}
+
+_preupg_fupath__ini_grepsec() {
+    #
+    # Read one INI section
+    #
+    local wnt="$1"
+    local ok=false
+    grep -v '\s*#' \
+      | while IFS= read -r line;
+        do
+            case "$line" in
+                \[$wnt\]) ok=true;  continue ;;
+                \[*\])    ok=false; continue ;;
+            esac
+            $ok || continue
+            printf -- "%s\n" "$line"
+        done \
+      | sed -e 's/ *=/=/;'
+}
+
+_preupg_fupath__ini_lskeys() {
+    #
+    # List keys from a section
+    #
+    local sct="$1"
+    _preupg_fupath__ini_grepsec "$sct" \
+      | cut -d= -f1 \
+      | sort \
+      | uniq
+}
+
+#shellfu module-version=__MKIT_PROJ_VERSION__

src/preupg_upath.sh.skel

+#!/bin/bash
+
+shellfu import jat
+shellfu import pretty
+
+#
+# upgrade path utilities
+#
+
+preupg_upath__find() {
+    #
+    # Find module according to criteria
+    #
+    # Look into installed upgrade path modules and print all ids or ids
+    # selected by a condition.
+    #
+    #     preupg_upath__find [-FIELD RE].. [-print FIELD[:FIELD]..]
+    #
+    # Where FIELD is one of supported fields and RE is basic regular expression
+    # to be matched against that field.  List of all modules found on the
+    # system is collected; then each module is checked against all conditions.
+    # If it matches all conditions, its short id is printed, unless `-print`
+    # is provided, in which case the argument that follows is interpreted as
+    # colon-separated list of fields that should be printed.  Multiple fields
+    # on output are separated by colon.
+    #
+    # List of supported conditions:
+    #
+    #  *  `id` - short id,
+    #  *  `xid` - long "xccdf_preupg_rule_" id,
+    #  *  `relpath` - relative path from upgrade path root
+    #  *  `path` - absolute path
+    #  *  `name` - only the name part (directory name)
+    #  *  `group` - "group" part of the id,
+    #  *  `upath` - upgrade path names.
+    #
+    local Conds=()
+    local cond_name
+    local cond_arg
+    local dir
+    local usage="usage: preupg_upath__find [-FIELD RE].."
+    while true; do case $1 in
+        -*)
+            cond_name=${1:1}
+            cond_arg=$2
+            shift 2 || {
+                jat__log_error "$usage"
+                return 2
+            }
+            Conds+=("$cond_name:$cond_arg")
+            ;;
+        "")
+            break
+            ;;
+        *)
+            shift 2 || {
+                jat__log_error "$usage"
+                return 2
+            }
+    esac done
+    __preupg_upath__find_dirs \
+      | while read -r dir;
+        do
+            __preupg_upath__find_ckconds "$dir"
+        done
+}
+
+
+#          #                                     your brain upgrade path #
+# INTERNAL # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #
+#          #                                    does not cross this line #
+
+__preupg_upath__find_dirs() {
+    #
+    # List all paths to module directories
+    #
+    local path
+    rpm -qal "preupgrade-assistant-el6toel*" \
+      | grep -v '/usr/share/preupgrade/[[:alnum:]]\+/common' \
+      | while read -r path;
+        do
+            test -d "$path"             || continue
+            test -f "$path/group.xml"   || continue
+            test -f "$path/check"       || continue
+            echo "$path"
+        done
+}
+
+__preupg_upath__find_ckconds() {
+    #
+    # Check all condition pairs
+    #
+    local mpath=$1
+    local cond
+    local cond_name
+    local cond_arg
+    local ok=true
+    local fields=upath:id
+    local field
+    for cond in "${Conds[@]}";
+    do
+        cond_name=${cond%%:*}
+        cond_arg=${cond#*:}
+        case $cond_name in
+            id|xid|group|name|path|relpath|upath)
+                __preupg_upath__find_getfield "$cond_name" "$mpath" \
+                  | grep -q "$cond_arg" \
+                 || ok=false
+                ;;
+            print)
+                fields=$cond_arg
+                ;;
+            *)
+                jat__log_error "unknown condition: $cond"
+                return 2
+                ;;
+        esac
+    done
+    $ok || return 1
+    __preupg_upath__find_fmt "$fields" "$mpath"
+}
+
+__preupg_upath__find_fmt() {
+    #
+    # Format meta data of module $2 according to field list $1
+    #
+    local fields=$1
+    local mpath=$2
+    local field
+    for field in ${fields//:/ };
+    do
+        __preupg_upath__find_getfield "$field" "$mpath"
+    done \
+      | paste -sd:
+}
+
+__preupg_upath__find_getfield() {
+    #
+    # Get field $1 from module at path $1
+    #
+    local field=$1
+    local mpath=$2
+    local getfield=__preupg_upath__find_getfield
+    case $field in
+        id)
+            $getfield relpath "$mpath" \
+              | sed 's:/:_:g'
+            ;;
+        xid)
+            echo -n "xccdf_preupg_rule_"
+            echo -n "$($getfield id "$mpath")"
+            echo -n "_check"
+            ;;
+        name)
+            echo "${mpath##*/}"
+            ;;
+        group)
+            $getfield relpath "$mpath" \
+              | sed 's:/[^/]*$::; s:/:_:g'
+            ;;
+        upath)
+            cut -d/ -f5 <<<"${mpath}" \
+              | __preupg_upath__find_upath_old2new
+            ;;
+        relpath)
+            cut -d/ -f6- <<<"${mpath}"
+            ;;
+        path)
+            echo "$mpath"
+            ;;
+        *)
+            jat__log_error "unknown field: $field"
+            return 2
+            ;;
+    esac
+}
+
+__preupg_upath__find_upath_old2new() {
+    #
+    # Convert from old style upgrade path name to new
+    #
+    # Usage: echo el6toel7 | __preupg_upath__find_upath_old2new
+    #
+    local oupath
+    while read -r oupath;
+    do
+        case $oupath in
+            RHEL?_?) echo "el${oupath:4:1}toel${oupath:6}" ;;
+            *) jat__log_error "unknown old-style upgrade path name: $oupath" ;;
+        esac
+    done
+}
+
+#shellfu module-version=__MKIT_PROJ_VERSION__

utils/mkit/include/build.sh

+#!/bin/bash
+# MKit - simple install helper
+# See LICENSE file for copyright and license details.
+
+mkit_import ini
+mkit_import facts
+
+
+__build1() {
+    #
+    # Process one skeleton $1 of type $3 (or guessed) to path $2
+    #
+    local srcpath=$1    # skeleton path
+    local dstpath=$2    # destination meaty animal path
+    local ftype=$3      # file/builder type
+    test -n "$dstpath"  || dstpath=${srcpath%.skel}
+    test -n "$ftype"    || ftype=$(__guess_ftype "$dstpath")
+    debug_var srcpath dstpath ftype
+    <"$srcpath" __build1_ftype "$ftype" >"$dstpath"
+    __rec_built "$dstpath"
+}
+
+__build1_ftype() {
+    #
+    # Build a file of type $1; fom stdin to stdout
+    #
+    local ftype=$1      # file/builder type
+    case $ftype in
+        MKIT_COMMON)    __expand_macros "macros" ;;
+        rpmstuff)       __expand_macros "macros" "rpmstuff:macros" ;;
+        debstuff)       __expand_macros "macros" "debstuff:macros" ;;
+        *)              die "unknown file type: $ftype" ;;
+    esac
+}
+
+__expand_line() {
+    #
+    # Expand macro from $MacroMap in single line $1
+    #
+    # If macro value has multiple lines, repeat original line with
+    # different substitution.
+    #
+    # E.g. if macro value is "foo\nbar" and macro name is __FOO__,
+    # line `see: "__FOO__"` will expand to two lines: `see: "foo"`
+    # and `see: "bar"`.
+    #
+    local line=$1   # line to process
+    local mname     # macro name
+    local mvline    # line of macro value
+    local xline     # expanded line
+    xline=$line
+    for mname in "${!MacroMap[@]}"; do
+        if ! test "${line//$mname}" == "$line"; then
+            xline=$(
+                while IFS= read -r mvline; do
+                    echo "${line//$mname/$mvline}"
+                done <<<"${MacroMap[$mname]}"
+            )
+        fi
+        line=$xline
+    done
+    echo "$xline"
+    return 1
+}
+
+__expand_macros() {
+    #
+    # Read stdin, expanding macros from sections $@
+    #
+    local section       # each section to expand macros from
+    local line          # each line on stdin
+    local mname         # each macro name
+    local -A MacroMap   # macro value map
+    MacroMap[__MKIT_PROJ_NAME__]=$(ini 1value project:name)
+    MacroMap[__MKIT_PROJ_CODENAME__]=$(ini 1value project:codename)
+    MacroMap[__MKIT_PROJ_LICENSE__]=$(ini 1value project:license)
+    MacroMap[__MKIT_PROJ_PKGNAME__]=$(ini 1value project:pkgname)
+    MacroMap[__MKIT_PROJ_TAGLINE__]=$(ini 1value project:tagline)
+    MacroMap[__MKIT_PROJ_MAINTAINER__]=$(ini 1value project:maintainer)
+    MacroMap[__MKIT_PROJ_VCS_BROWSER__]=$(ini 1value project:vcs_browser)
+    MacroMap[__MKIT_PROJ_GIT_LASTHASH__]=$(__cached git_lasthash)
+    MacroMap[__MKIT_PROJ_VERSION__]=$(__cached semver)
+    MacroMap[__MKIT_SELF_VERSION__]=$MKIT_VERSION
+    for section in "$@"; do
+        for mname in $(ini lskeys "$section"); do
+            MacroMap[$mname]=$(ini values "$section:$mname")
+        done
+    done
+    debug_var MacroMap
+    while IFS= read -r line; do
+        __expand_line "$line"
+    done
+}
+
+__guess_ftype() {
+    #
+    # Guess file type from destination path $1
+    #
+    local dstpath=$1    # destination path
+    case $dstpath in
+        *)    echo MKIT_COMMON ;;
+    esac
+}
+
+__qfs() {
+    #
+    # Quote for our sed scipt's RHS
+    #
+    sed '
+        s:\\:\\\\:g
+        s:|:\\|:g
+    '
+}
+
+__cached() {
+    #
+    # Cached value $1 of function $1()
+    #
+    # In order to support git-less builds, some values might be cached
+    # in $MKIT_LOCAL.  This function gets file $1 from that cache (cache
+    # hit) or re-creates it (cache miss), but prints its body in either
+    # case.
+    #
+    # The command to re-create file is the same as the key (ie. no
+    # arguments).
+    #
+    local name=$1
+    __local_get "$name" && return 0
+    "$name" | __local_putb "$name"
+    __local_get "$name"
+}
+
+__local_putb() {
+    #
+    # Make file $1 in $MKIT_LOCAL from stdin and mark as built
+    #
+    local fpath=$1
+    __local_put "$fpath" && __rec_built "$MKIT_LOCAL/$fpath"
+}
+
+__local_put() {
+    #
+    # Make file $1 in $MKIT_LOCAL from stdin
+    #
+    local fpath="$MKIT_LOCAL/$1"
+    { mkdir -p "${fpath%/*}" && cat >"$fpath"; } \
+     || die "cannot write to local cache: $fpath"
+}
+
+__local_get() {
+    #
+    # Read file $1 in $MKIT_LOCAL
+    #
+    local fpath="$MKIT_LOCAL/$1"
+    cat "$fpath" 2>/dev/null
+}
+
+__rec_built() {
+    #
+    # Record file $1 for deletion on `clean`
+    #
+    local file=$1
+    mkdir -p "$MKIT_LOCAL"
+    echo "$file" >> "$MKIT_LOCAL/built.lst"
+}
+
+_mkit_data() {
+    #
+    # Build sampler showing all macro values
+    #
+    local macro
+    local section
+    local sections
+    sections=()
+    ini lskeys macros | grep -q . && sections=(macros)
+    sections+=( $(ini lssect | grep ':macros$') )
+    {
+        echo "(builtin):"
+        echo "  x_MKIT_PROJ_NAME__ => '__MKIT_PROJ_NAME__'"
+        echo "  x_MKIT_PROJ_CODENAME__ => '__MKIT_PROJ_CODENAME__'"
+        echo "  x_MKIT_PROJ_LICENSE__ => '__MKIT_PROJ_LICENSE__'"
+        echo "  x_MKIT_PROJ_PKGNAME__ => '__MKIT_PROJ_PKGNAME__'"
+        echo "  x_MKIT_PROJ_TAGLINE__ => '__MKIT_PROJ_TAGLINE__'"
+        echo "  x_MKIT_PROJ_MAINTAINER__ => '__MKIT_PROJ_MAINTAINER__'"
+        echo "  x_MKIT_PROJ_VCS_BROWSER__ => '__MKIT_PROJ_VCS_BROWSER__'"
+        echo "  x_MKIT_PROJ_GIT_LASTHASH__ => '__MKIT_PROJ_GIT_LASTHASH__'"
+        echo "  x_MKIT_PROJ_VERSION__ => '__MKIT_PROJ_VERSION__'"
+        echo "  x_MKIT_SELF_VERSION__ => '__MKIT_SELF_VERSION__'"
+        for section in "${sections[@]}"; do
+            echo "$section:"
+            for macro in $(ini lskeys "$section"); do
+                echo "  x${macro:1} => '$macro'"
+            done
+        done
+    } \
+      | __expand_macros "MKIT_BUILTIN" "${sections[@]}" \
+      | sed '/^  x/ s|x|_|'
+}
+
+build() {
+    #
+    # Add meat to all skeletons
+    #
+    local srcpath   # each source path
+    find . -type f -name '*.skel' \
+     | while read -r srcpath; do
+           __build1 "$srcpath"
+       done
+}
+
+clean() {
+    #
+    # Clean up tree after building
+    #
+    test -f "$MKIT_LOCAL/built.lst" && {
+        <"$MKIT_LOCAL/built.lst" grep -v -e '\.\.' -e ^/ \
+          | xargs -r rm -rf
+        rm -f "$MKIT_LOCAL/built.lst"
+        rmdir --ignore-fail-on-non-empty "$MKIT_LOCAL"
+    }
+    true
+}
+
+debstuff() {
+    #
+    # Build Debian stuff (eamed tarball, debian dir)
+    #
+    local version       # package version
+    local debian_skel   # 'debian' folder skeleton
+    local dfsrc         # each source file from ^^
+    local dftgt         # each built packaging file
+    version=$(__cached semver)
+
+    # tarball - we should already have by means of 'dist'
+    #
+    mv "${MKIT_PROJ_PKGNAME}-$version.tar.gz" \
+       "${MKIT_PROJ_PKGNAME}_$version.orig.tar.gz" \
+     || die "could not rename tarball"
+    __rec_built "${MKIT_PROJ_PKGNAME}_$version.orig.tar.gz"
+
+    # read content of each mandatory file from debian_skel
+    #
+    debian_skel=$(ini 1value dist:debstuff)
+    test -n "$debian_skel" || die "dist:debstuff not specified"
+    test -d "$debian_skel" || die "debian directory template found: $debian_skel"
+    mkdir -p debian/source
+    find "$debian_skel" -type f \
+      | while read -r dfsrc; do
+            dftgt="debian/${dfsrc#$debian_skel}"
+            mkdir -p "$(dirname "$dftgt")"
+            __build1 "$dfsrc" "$dftgt" debstuff
+        done
+    __rec_built debian
+}
+
+dist() {
+    #
+    # Create distributable tarball
+    #
+    #FIXME: lacking Makefile skills, we do this step twice for
+    #       rpmstuff, hence -f hack for gzip
+    #
+    local version           # tarball version
+    local git_lasthash      # last git commit hash
+    local dirname           # directory and tarball name
+    version=$(semver)
+    dirname=$MKIT_PROJ_PKGNAME-$version
+    git_lasthash=$(git_lasthash)
+    mkdir -p "$dirname"
+    ini values "dist:tarball" | xargs -I DIST_ITEM cp -R DIST_ITEM "$dirname"
+    mkdir -p "$dirname/.mkit"
+    echo -n "$version" > "$dirname/.mkit/semver"
+    echo -n "$git_lasthash" > "$dirname/.mkit/git_lasthash"
+    tar -cf "$dirname.tar" "$dirname"
+    gzip -f "$dirname.tar"      # see above FIXME
+    __rec_built "$dirname.tar.gz"
+    rm -rf "$dirname"
+}
+
+rpmstuff() {
+    #
+    # Build specfile
+    #
+    local specname=$MKIT_PROJ_PKGNAME.spec      # .spec filename
+    local specsrc                               # source of specfile
+    specsrc="$(ini 1value "dist:rpmstuff")"
+    test -n "$specsrc" || die "dist:rpmstuff not specified"
+    test -f "$specsrc" || die "specfile template not found: $specsrc"
+    __build1 "$specsrc" "$specname" rpmstuff
+}

utils/mkit/include/deploy.sh

+#!/bin/bash
+# MKit - simple install helper
+# See LICENSE file for copyright and license details.
+
+mkit_import ini
+
+__deploy_item() {
+    #
+    # Deploy item and make it look like wanted
+    #
+    # usage: __deploy_item src dst [mode]
+    #
+    # Both src and dst must be names of actual items[1],
+    # whereas dst must not exist.  On update, dst is
+    # usually to be replaced but that is uninstall's
+    # job!
+    #
+    #  [1] Ie. src=foo and dst=/foo/bar does *always*
+    #      mean that foo will become 'bar'.  This is
+    #      different than traditional `cp` behavior,
+    #      when this depends if 'bar' already exists
+    #      as a directory.
+    #
+    # If mode is omitted or empty, MKIT_DEFAULT_MODE is
+    # used instead.
+    #
+    # Directories are copied recursively, and mode is
+    # applied only to files.
+    #
+    local src=$1                            # source path
+    local dst=$2                            # destination path
+    local mode=${3:-$MKIT_DEFAULT_MODE}     # mode
+    local item                              # each in directory
+    if test -d "$src"; then
+        find "$src" -type f \
+          | while read -r item; do
+                [[ $item =~ .skel$ ]] \
+                 && grep -q "${item%.skel}" "$MKIT_LOCAL/built.lst" \
+                 && continue
+                __deploy_item "$item" "$dst${item#$src}" "$mode"
+            done
+    else
+        test "$mode" == "SRC" && mode=$(stat -c "%a" "$src")
+        __maybe install -DTvm "$mode" "$src" "$dst"
+    fi
+}
+
+__get_dst() {
+    #
+    # Find out target path for src file $2 of group $1
+    #
+    local grp=$1        # deploy group
+    local src=$2        # each source
+    local dst=$3        # alternative destination name
+    test -n "$dst" || dst=${src##*/}
+    echo "$(__get_root "$grp")/$dst"
+}
+
+__get_root() {
+    #
+    # Find out target root for group $1
+    #
+    local grp=$1        # deploy group
+    local root          # root for this group
+    local destdir       # value of DESTDIR
+    root=$(ini 1value "roots:$grp")
+    destdir=$(ini 1value ENV:DESTDIR)
+    destdir=${destdir%/}
+    case $destdir:$root in
+        *:)     die "missing in config.ini: roots:$grp" ;;
+        :*)     echo "$root" ;;
+        *:*)    echo "$destdir/$root" ;;
+    esac
+}
+
+__maybe() {
+    #
+    # Call the deploy command $1 $@ unless in dry mode
+    #
+    debug "$@"
+    local cmd="$1"; shift
+    $MKIT_DRY && return
+    case "$cmd" in
+        cp|rm|rmdir|chmod|mkdir) $cmd "$@" ;;
+        install)                 command -p install "$@" ;;
+        *)                       die "bad command called";;
+    esac
+}
+
+install() {
+    #
+    # Install product
+    #
+    local group     # each deploy group
+    local mode      # mode (group-specific)
+    local src       # each source path
+    local dst       # each (final absolute) destination path
+    ini lskeys "files" \
+      | sort \
+      | uniq \
+      | while read -r group; do
+            mode=$(ini 1value "modes:$group")
+            ini values "files:$group" \
+              | while read -r src dst; do
+                    dst=$(__get_dst "$group" "$src" "$dst")
+                    __deploy_item "$src" "$dst" "$mode"
+                done
+        done
+    test -f "$MKIT_LOCAL/autoclean" && clean
+    true
+}
+
+uninstall() {
+    #
+    # Uninstall product
+    #
+    local group     # each deploy group
+    local src       # each source path
+    local dst       # each (final absolute) destination path
+    ini lskeys "files" \
+      | sort \
+      | uniq \
+      | while read -r group; do
+            ini values "files:$group" \
+              | while read -r src dst; do
+                    dst=$(__get_dst "$group" "$src" "$dst")
+                    __maybe rm -vrf "$dst"
+                done
+        done
+}

utils/mkit/include/facts.sh

+#!/bin/bash
+# MKit - simple install helper
+# See LICENSE file for copyright and license details.
+
+mkit_import ini
+
+git_bool() {
+    #
+    # Get git bool (ie. exit status counts) $1
+    #
+    local bool_name=$1      # name of boolean to get
+    git_present || warn "can't give bool outside git repo: $bool_name"
+    case "$bool_name" in
+        dirty_files)
+            git diff-files | grep -qm 1 .
+            ;;
+        dirty_index)
+            git diff-index HEAD | grep -qm 1 .
+            ;;
+        dirty)
+            git_bool dirty_files || git_bool dirty_index
+            ;;
+        *)
+            warn "unknown git bool asked: $bool_name"
+            return 2
+            ;;
+    esac
+}
+
+git_fact() {
+    #
+    # Get git fact $1
+    #
+    local fact_name=$1      # name of fact to get
+    git_present || warn "can't give fact outside git repo: $fact_name"
+    case "$fact_name" in
+        latest_tag)
+            git log --format="%d" \
+              | sed 's/,/\n/g' \
+              | sed 's/^[[:blank:]]*//' \
+              | grep -E '^\(?tag' \
+              | tr -cd '[[:digit:]].v\n' \
+              | grep . -m 1
+            ;;
+        latest_version)
+            git_fact latest_tag | git_tag2ver
+            ;;
+        current_branch)
+            git rev-parse --abbrev-ref HEAD
+            ;;
+        reldiff)
+            git log --oneline "$(git_fact latest_tag)..HEAD" --name-only
+            ;;
+        latest_sha)
+            git log -1 --pretty=format:%h HEAD
+            ;;
+        *)
+            warn "unknown git fact asked: $fact_name"
+            ;;
+    esac
+}
+
+git_present() {
+    #
+    # True if we're in a git repo
+    #
+    git rev-parse HEAD >&/dev/null
+}
+
+git_tag2ver() {
+    #
+    # Convert tag to version
+    #
+    sed s/^v//
+}
+
+git_ver2tag() {
+    #
+    # Convert version to tag
+    #
+    sed s/^/v/
+}
+
+git_lasthash() {
+    #
+    # Show last commit hash (with .dirty suffix if needed)
+    #
+    # We can't do it outside git repo (or without git) but we should
+    # not be asked to; targets that don't require git should make use
+    # of cache built by dist target.
+    #
+    local last_hash     # last commit hash
+    git_present || {
+        echo UNKNOWN_HASH
+        warn "no git present; could not determine last hash"
+        return 3
+    }
+    last_hash=$(git rev-parse HEAD)
+    echo -n "$last_hash"
+    git_bool dirty && echo -n ".dirty"
+}
+
+semver() {
+    #
+    # Build proper SemVer version string
+    #
+    # Build version string from available info using following
+    # logic:
+    #
+    #  1. Use version from last git tag (or mkit.ini if there is no
+    #     tag, which is possible on new project)
+    #  2. if set, add project:prerl (from mkit.ini) as pre-release ID
+    #     (afer dash)
+    #  3. if we are at a later commit than the last tag, add branch
+    #     name and commit sha1 to build metadata (after plus sign)
+    #  4. if the tree is "dirty", i.e. has uncommited changes,
+    #     add "dirty" to build metadata
+    #
+    # The version is compatible with SemVer 2.0.0.
+    #
+    # Examples:
+    #
+    #     foo v1.0.7                            # all clear; proper release
+    #     foo v1.0.7-beta                       # mkit.ini: project:prerl="beta"
+    #     foo v1.0.7-beta+g1aef811.master       # ^^ + some commits after
+    #     foo v1.0.7-beta+gf14fc4f.api2         # ^^ + on a feature branch
+    #     foo v1.0.7-beta+gf14fc4f.api2.dirty   # ^^ + tree edited
+    #     foo v1.0.7-beta+dirty                 # tag OK but tree edited
+    #     foo v1.0.7+dirty                      # ^^ but no pre-release id
+    #
+    # Note that versions with "dirty" should be perceived as kind of
+    # dangerous outside developer's own machine.  Versions with sha1 are
+    # safer but must not be released.
+    #
+    # FIXME:  Using project:prerl for release IDs may not be compatible with
+    #         release strategy implemented in release.sh
+    #
+    local xyz           # base version string
+    local prerl         # pre-release keyword (from mkit.ini, eg. 'beta')
+    local latest_tag    # latest git tag
+    local commit        # commit indicator (CURRENT_BRANCH.gHASH)
+    local dirty=F       # F if dirty, T if clean
+    local btime         # hex timestamp or nothing (see $MKIT_TTAG)
+    local suffix        # version suffix
+    prerl=$(ini 1value project:prerl)
+    case $MKIT_TTAG in
+        none)   btime= ;;
+        btime)  btime=$(printf '%08x' "$(date +%s)") ;;
+    esac
+    grep ":" <<<"$prerl" \
+     && warn "colon in project:prerl may corrupt version data: $prerl"
+    git_present || {
+        echo UNKNOWN_VERSION
+        warn "no git present; could not determine SemVer"
+        return 3
+    }
+    latest_tag=$(git_fact latest_tag)
+    case $latest_tag in
+        v*) xyz=${latest_tag:1} ;;
+        "") warn "no tags, using base version from mkit.ini (ok for new project)"
+            xyz=$(ini 1value project:version) ;;
+        *)  warn "bad form of last tag, using base version from mkit.ini: tag is '$latest_tag'"
+            xyz=$(ini 1value project:version) ;;
+    esac
+    if ! git describe --tags --exact-match HEAD >&/dev/null;
+    then    # we are at a later commit than the last tag
+        commit="$(git_fact current_branch).g$(git_fact latest_sha)"
+    fi
+    git_bool dirty && dirty=T
+    case "$dirty:$btime:$commit" in
+        F:*:)   suffix=""                       ;;
+        T::)    suffix="+dirty"                 ;;
+        T:*:)   suffix="+t$btime.dirty"           ;;
+        F::*)   suffix="+$commit"               ;;
+        F:*:*)  suffix="+t$btime.$commit"         ;;
+        T::*)   suffix="+$commit.dirty"         ;;
+        T:*:*)  suffix="+t$btime.$commit.dirty"   ;;
+        *)      suffix=MKIT_BUG
+                warn "MKIT_BUG: bad dirt/commit detection" ;;
+    esac
+    test -n "$prerl" && suffix="-$prerl$suffix"
+    echo "$xyz$suffix"
+}

utils/mkit/include/ini.sh

+#!/bin/bash
+# MKit - simple install helper
+# See LICENSE file for copyright and license details.
+
+__ini_cat() {
+    #
+    # A no-op for text stream
+    #
+    local line      # each line
+    while read -r line; do
+        printf -- "%s\n" "$line"
+    done
+}
+
+__ini_expand() {
+    #
+    # Expand reference value (prefix only)
+    #
+    local line      # each input line
+    local suffix    # tail of the line
+    local ref       # reference
+    local value     # value if reference
+    while read -r line; do                  # [foo:bar]/path
+        suffix="${line#\[*\]}"              # /path
+        ref="${line%$suffix}"               # [foo:bar]
+        ref="${ref%\]}"                     # [foo:bar
+        ref="${ref#\[}"                     # foo:bar
+        value="$(ini 1value "$ref")"        # foo_bar_value
+        printf -- "%s\n" "$value$suffix"    # foo_bar_value/path
+    done
+}
+
+__ini_grepcmt() {
+    #
+    # Remove comments from INI file on stdin
+    #
+    grep -v '^[[:space:]]*#'
+}
+
+__ini_grepkey() {
+    #
+    # Read key from a section
+    #
+    local wnt=$1    # wanted key
+    grep '.' \
+      | sed -e 's/ *= */=/; s/ +$//; s/^//;' \
+      | grep -e "^$wnt=" \
+      | cut -d= -f2- \
+      | __ini_maybe_expand
+}
+
+__ini_greppath() {
+    #
+    # Read key from the right section
+    #
+    # E.g. `files:share:my/lib.sh` should read
+    #
+    #     [files:share]
+    #         my/lib.sh   = proj/my/lib.sh
+    #
+    local wnt=$1                    # wanted path
+    local wntkey=${wnt##*:}         # ^^ key part
+    local wntsec=${wnt%:$wntkey}    # ^^ section part
+    local override                  # ENV override (only ENV section)
+    if test "$wntsec" = 'ENV'; then
+        override=${!wntkey}
+        test -n "$override" \
+         && echo "$override" \
+         && return
+    fi
+    __ini_grepsec "$wntsec" | __ini_grepkey "$wntkey"
+}
+
+__ini_grepsec() {
+    #
+    # Read one INI section
+    #
+    local wnt=$1        # wanted section name
+    local ok=false      # are we in the section?
+    local line          # each input line
+    grep '.' \
+      | while read -r line; do
+            case "$line" in
+                \[$wnt\]) ok=true;  continue ;;
+                \[*\])    ok=false; continue ;;
+            esac
+            $ok || continue
+            printf -- "%s\n" "$line"
+        done \
+      | sed -e 's/ *= */=/; s/ +$//; s/^//;'
+}
+
+__ini_lskeys() {
+    #
+    # List keys from a section
+    #
+    local sct=$1    # section of interest
+    __ini_grepsec "$sct" | cut -d= -f1 | awk '!x[$0]++'
+}
+
+__ini_lssect() {
+    #
+    # List all section names
+    #
+    local arg=$1    # unused argument
+    grep -x '\[.*\]' | sed 's/^.//; s/.$//'
+}
+
+__ini_maybe_expand() {
+    #
+    # Decide whether or not to expand
+    #
+    if test "$MKIT_INI_EXPAND" -gt 0; then
+        MKIT_INI_EXPAND=$(( --MKIT_INI_EXPAND )) __ini_expand
+    else
+        __ini_cat
+    fi
+}
+
+__ini_body() {
+    #
+    # Produce mkit.ini body including INCLUDE
+    #
+    # Note: recursive includes are not supported.
+    #
+    local inc                       # file to include
+    local incre='\[INCLUDE:.*\]'    # include directive regex
+    local iline                     # include directive line
+    if iline=$(grep -m1 -x "$incre" "$MKIT_INI"); then
+        inc=${iline#*:}; inc=${inc%]}
+        grep -vx "$incre" "$inc"
+        grep -vx "$incre" "$MKIT_INI"
+    else
+        cat "$MKIT_INI"
+    fi | __ini_grepcmt
+}
+
+ini() {
+    #
+    # do ini operation
+    #
+    local op=$1             # operator
+    local arg=$2            # argument
+    local fn                # internal function implementing $op
+    local limit=__ini_cat    # limiting internal function
+    case $op in
+        lskeys) fn=__ini_lskeys   ;;
+        lssect) fn=__ini_lssect   ;;
+        sec)    fn=__ini_grepsec  ;;
+        values) fn=__ini_greppath ;;
+        1value) fn=__ini_greppath; limit="tail -1" ;;
+        *)      die "incorrect use of \`ini()\`"
+    esac
+    __ini_body | $fn "$arg" | $limit
+}
+
+update_version() {
+    #
+    # Change project:version in mkit.ini at path $2 to value $1
+    #
+    local version=$1    # new version
+    local inifile=$2    # mkit.ini path
+    local tmp           # mkit.ini cache
+    tmp=$(mktemp -t mkit.update_version.XXXXXXXX)
+    <"$inifile" perl -e '
+        my $hit = 0;
+        my $done = 0;
+        foreach (<STDIN>) {
+            if      ($done) { print; next; }
+            elsif   (m/\[project\]/) { $hit++; print; next; }
+            elsif   (m/\[/) { $hit = 0; print; next; }
+            elsif   ($hit) { s/\bversion\b( *)=( *).*/version$1=$2$ARGV[0]/ and $done++; print; }
+            else { print; next; }
+        }
+    ' "$version" >"$tmp" || die "failed to update version in mkit.ini"
+    mv "$tmp" "$inifile"
+}

utils/mkit/include/mkit.sh

+#!/bin/bash
+# MKit - simple install helper
+# See LICENSE file for copyright and license details.
+
+die() {
+    #
+    # Exit with message and non-zero exit status
+    #
+    echo "fatal: $*" >&2
+    exit 4
+}
+
+mkit_import() {
+    #
+    # Import mkit module $1.sh
+    #
+    # Check for module, source it and die with reasonable message if needed.
+    #
+    local modname=$1
+    local modpath
+    modpath="$MKIT_DIR/include/$modname.sh"
+    test -f "$modpath" || die "no such module: $modpath"
+    bash -n "$modpath" || die "bad syntax: $modpath"
+    #shellcheck disable=SC1090
+    . "$modpath" || die "failed to import: $modname"
+}
+
+mkit_import build
+mkit_import deploy
+mkit_import release
+mkit_import ini
+
+__valid_targets() {
+    #
+    # List valid routes
+    #
+    echo _mkit_data
+    echo build
+    echo clean
+    echo debstuff
+    echo dist
+    echo install
+    echo release
+    echo release_x
+    echo release_y
+    echo release_z
+    echo rpmstuff
+    echo uninstall
+    echo vbump
+    echo vbump_x
+    echo vbump_y
+    echo vbump_z
+}
+
+debug() {
+    #
+    # Print debug message
+    #
+    $MKIT_DEBUG || return 0
+    echo "MKIT_DEBUG: ${FUNCNAME[1]}()" "$@" >&2
+}
+
+debug_var() {
+    #
+    # Print debug message
+    #
+    $MKIT_DEBUG || return 0
+    local __mkit_debug_var_name__       # variable name to debug
+    local decl                          # declare string
+    for __mkit_debug_var_name__ in "$@"; do
+        {
+            decl=$(declare -p "$__mkit_debug_var_name__")
+            decl=${decl#declare ?? }
+            echo "MKIT_DEBUG: ${FUNCNAME[1]}(): $decl"
+        } >&2
+    done
+}
+
+__compver() {
+    #
+    # True if version $1 matches our version
+    #
+    # If our x is 0, check first two fragments, otherwise check just
+    # the x.  Fragments must equal.
+    #
+    local their_ver=$1      # their version
+    local our_x             # our X
+    local our_y             # our Y
+    local their_x           # their X
+    local their_y           # their Y
+    their_x=${their_ver%%.*}
+    their_y=${their_ver##$their_x.}
+    their_y=${their_y%%.*}
+    our_x=${MKIT_VERSION%%.*}
+    our_y=${MKIT_VERSION##$our_x.}
+    our_y=${our_y%%.*}
+    debug_var MKIT_VERSION our_x our_y their_ver their_x their_y
+    test "$their_x" -eq "$our_x" || return 1
+    test "$our_x" -eq 0 && {
+        test "$their_y" = "$our_y"
+        return $?
+    }
+    return 0
+}
+
+__chkiniversion() {
+    #
+    # Check if ini version is supported
+    #
+    # Look for "#mkit version=0.0.0" or similar in first or last
+    # 3 lines of the file; then check if the version is supported.
+    #
+    local ver_line      # line declaring version
+    local their_ver     # the declared version
+    ver_line=$(
+        {
+            head -3 "$MKIT_INI"
+            tail -3 "$MKIT_INI"
+        } | grep -m 1 -E '^# *mkit +version *= *v?[0-9]+\.[0-9]+\.[0-9]+'
+    )
+    test -n "$ver_line" \
+     || die "version mark ('#mkit version=x.y.z') not found in: $MKIT_INI"
+    their_ver="$(tr -d '[:blank:]v' <<<"${ver_line##*=}")"
+    __compver "$their_ver" \
+     || die "bad mkit.ini version: $their_ver does not match $MKIT_VERSION"
+}
+
+mkit_init() {
+    #
+    # Do basic initialization
+    #
+    # Check for ini file and some variables
+    #
+    $MKIT_DRY && MKIT_DEBUG=true
+    #shellcheck disable=SC2034
+    MKIT_PROJ_PKGNAME=$(ini 1value "project:pkgname")
+    test -f "$MKIT_INI" || die "cannot find mkit.ini: $MKIT_INI"
+    __chkiniversion
+}
+
+route() {
+    #
+    # Call correct function based on $1
+    #
+    if __valid_targets | grep -qwx "^$1"; then
+        "$1"
+    else
+        {
+            echo "usage: $(basename "$0") TARGET"
+            echo
+            echo "valid targets:"
+            __valid_targets | sed 's/^/    /'
+        } >&2
+    fi
+}
+
+warn() {
+    #
+    # Print warning message
+    #
+    echo "$@" >&2
+}

utils/mkit/include/release.sh

+#!/bin/bash
+# MKit - simple install helper
+# See LICENSE file for copyright and license details.
+
+mkit_import ini
+mkit_import facts
+
+__bump_version() {
+    #
+    # Bump version on stdin by level $1 (x, y or z)
+    #
+    local rlevel=$1     # release level
+    local old           # old version
+    local oldx          # ... X
+    local oldz          # ... Z
+    local oldy          # ... Y
+    local tmpy          # Y parsing cache
+    local new           # bumped version
+    read -r old
+    oldx=${old%.*.*}
+    oldz=${old#*.*.}
+    tmpy=${old%.*}
+    oldy=${tmpy#*.}
+    case $rlevel in
+        x) new="$((oldx+MKIT_BUMPSIZE)).0.0"            ;;
+        y) new="$oldx.$((oldy+MKIT_BUMPSIZE)).0"        ;;
+        z) new="$oldx.$oldy.$((oldz+MKIT_BUMPSIZE))"    ;;
+        *) die "invalid release level: $1"  ;;
+    esac
+    echo "$new"
+}
+
+__relck() {
+    #
+    # Die if blocking condition $1 is detected
+    #
+    local condition=$1      # condition name
+    local oracle            # expected value
+    case "$condition" in
+        git_present)
+            git rev-parse HEAD >&/dev/null\
+             || die "cannot do this outside git repo"
+            ;;
+        at_relsrc)
+            oracle=$(ini 1value project:relsrc)
+            git_fact current_branch \
+              | grep -qFx "$oracle" \
+             || die "you are not on release source branch: $oracle"
+            ;;
+        not_dirty)
+            git diff --shortstat 2>/dev/null \
+              | grep -q . \
+             && die "tree is dirty!"
+            ;;
+        tags_ok)
+            git_fact latest_tag \
+              | grep -q . \
+             || die "cannot find latest tag"
+            ;;
+        vbump_hot)
+            git diff-tree --no-commit-id --name-only -r HEAD \
+              | grep -qFx mkit.ini \
+             || die "last change must be version bump in mkit.ini"
+            ;;
+        no_wip)
+            git_fact reldiff \
+              | grep '^....... WIP ' \
+             && die "WIP commit since $(git_fact latest_tag)"
+            ;;
+        ini_version)
+            oracle=$(git_fact latest_version | __bump_version "$rlevel")
+            ini 1value project:version  \
+              | grep -qFx "$oracle" \
+             || die "new version not in mkit.ini: $oracle"
+            ;;
+        *)
+            die "unknown release check: $condition"
+            ;;
+    esac
+}
+
+__release() {
+    #
+    # Prepare release
+    #
+    # Span release routines: make a signed tag, check branch
+    # and update release branch
+    #
+    # FIXME: Using project:prerl as build.sh:semver() does may not be
+    #        compatible with this release strategy
+    #
+    local rlevel=$1     # release level (x, y or z)
+    local newtag        # new tag
+    local relsrc        # release source branch (if any)
+    local reldst        # release destination branch (if any)
+
+    __relck git_present
+    __relck at_relsrc
+    __relck not_dirty
+    __relck tags_ok
+    __relck vbump_hot
+    __relck no_wip
+    __relck ini_version
+
+    newtag=$(git_fact latest_version | __bump_version "$rlevel" | git_ver2tag )
+    set -e
+    debug_var newtag
+    $MKIT_DRY && return
+    git tag -m "$(__release_msg)" "$newtag"
+
+    relsrc=$(ini 1value project:relsrc)
+    reldst=$(ini 1value project:reldst)
+    debug_var relsrc reldst
+    if test -n "$reldst" && test "$reldst" != "$relsrc"; then
+        git branch -f "$reldst" "$newtag"
+    fi
+}
+
+__release_msg() {
+    #
+    # Generate message for annotated tag
+    #
+    # The last commit before issuing a release must be "Bump version" commit
+    # suggested by _vbump_gitmsg() and  manually edited by user.  Since the
+    # commit contains changelog, this function just uses the message body.
+    #
+    # The sort message (first line) is replaced with a nicer one (with project
+    # name, codename and version).
+    #
+    echo "$(ini 1value project:name) $newtag - $(ini 1value project:codename)"
+    echo
+    git show -s --format=%B \
+      | tail -n +3
+}
+
+__vbump() {
+    #
+    # Do version bump at level $1
+    #
+    # Perform checks, compute new version, update mkit.ini and initiate
+    # 'Bump version' commit with changelog template.
+    #
+    local rlevel=$1     # bump level (x, y or z)
+    local nextver       # version after the bump
+    local cache         # cache for the message
+    __relck git_present
+    __relck at_relsrc
+    __relck not_dirty
+    nextver=$(ini 1value project:version | __bump_version "$rlevel")
+    debug_var nextver
+    $MKIT_DRY && return
+    update_version "$nextver" mkit.ini \
+      || die "failed to update version in mkit.ini"
+    git add mkit.ini \
+      || die "failed to add mkit.ini to the index"
+    cache=$(mktemp -t "mkit._vbump_gitmsg.XXXXXXXX")
+    _vbump_gitmsg > "$cache"
+    git commit -e -F "$cache"   # note: reading from stdin will break vim
+    rm "$cache"
+}
+
+_vbump_gitmsg() {
+    #
+    # Compose git message template for 'Bump version' commit
+    #
+    echo "Bump version"
+    echo ""
+    echo "Overview of changes:"
+    echo ""
+    git_fact reldiff \
+      | sed '
+            s/^[a-f0-9]\{7\} /\n *  &/; t PATHS
+            s/^/        /
+            :PATHS
+        '
+}
+
+release() {
+    #
+    # Perform release on Z level
+    #
+    __release z
+}
+
+release_x() {
+    #
+    # Perform release on X level
+    #
+    __release x
+}
+
+release_y() {
+    #
+    # Perform release on Y level
+    #
+    __release y
+}
+
+release_z() {
+    #
+    # Perform release on Z level
+    #
+    __release z
+}
+
+vbump() {
+    #
+    # Perform version bump on Z level
+    #
+    __vbump z
+}
+
+vbump_x() {
+    #
+    # Perform version bump on X level
+    #
+    __vbump x
+}
+
+vbump_y() {
+    #
+    # Perform version bump on Y level
+    #
+    __vbump y
+}
+
+vbump_z() {
+    #
+    # Perform version bump on Z level
+    #
+    __vbump z
+}

utils/mkit/include/vars.sh

+#!/bin/bash
+#shellcheck disable=SC2034
+# MKit - simple install helper
+# See LICENSE file for copyright and license details.
+
+
+#
+# Bump size (for vbump_? and release_?)
+#
+MKIT_BUMPSIZE=${MKIT_BUMPSIZE:-1}
+
+#
+# Debug mode (true|false)
+#
+MKIT_DEBUG=${MKIT_DEBUG:-false}
+
+#
+# Default deploy mode for files
+#
+MKIT_DEFAULT_MODE="644"
+
+#
+# Dry mode (true|false)
+#
+# Set to true to not install anything. Implies MKIT_DEBUG.
+#
+MKIT_DRY=${MKIT_DRY:-false}
+
+#
+# Path to mkit.ini
+#
+MKIT_INI=${MKIT_INI:-mkit.ini}
+
+#
+# Limit ini expansion depth
+#
+# To avoid endless loops, this value is subtracted each
+# time ini() expands a reference; when zero is reached,
+# no more expansions happen.
+#
+MKIT_INI_EXPAND=2
+
+#
+# Path to MKit local config and temp
+#
+# Typically hidden in project root, here MKit can
+# save its temporary lists.
+#
+MKIT_LOCAL=${MKIT_LOCAL:-.mkit}
+
+#
+# Package name
+#
+# Used as base for tarball and in some default macros.
+#
+MKIT_PROJ_PKGNAME=""
+
+#
+# Add time-based ordinal tag to SemVer build data?
+#
+# Can be 'none' or 'btime'.
+#
+# If 'btime', devel builds have also 'tXXXXXXXX' tag, where each
+# 'X' is a hexa-decimal digit of Unix timestamp taken when build
+# is initiated.  This way, builds from same branch are guarranteed
+# to order based on build time (that is, until February 7th, 2106).
+#
+# Note that this makes devel and dirty builds non-deterministic,
+# but does not affect clean builds (ie. builds from clean repo
+# with HEAD corresponding to latest version tag.).
+#
+MKIT_TTAG=${MKIT_TTAG:-btime}
+
+#
+# This MKit version
+#
+MKIT_VERSION=0.0.33

utils/mkit/make

+#!/bin/bash
+#shellcheck disable=SC2034
+# mkit - simple install helper
+# See LICENSE file for copyright and license details.
+
+init_core() {
+    #
+    # Load core module (or die)
+    #
+    #shellcheck disable=SC1090
+    . "$MKIT_DIR/include/mkit.sh" \
+     && . "$MKIT_DIR/include/vars.sh" \
+     && return 0
+    echo "failed to load core; check if MKIT_DIR is set properly: $MKIT_DIR" >&2
+    exit 9
+}
+
+#
+# Path to MKit dir (where 'include' is)
+#
+MKIT_DIR=${MKIT_DIR:-$(dirname "$0")}
+
+
+init_core
+
+case "$1" in
+    -V|--version-semver)    echo "$MKIT_VERSION"; exit 0 ;;
+    --version)              echo "Mkit (Simple Makefile target helper) $MKIT_VERSION"
+                            exit 0 ;;
+esac
+
+mkit_init
+
+route "$@"

utils/mkit/mkit.mk

+# mkit - Simple Makefile target helper
+# See LICENSE file for copyright and license details.
+
+export MKIT_DIR
+
+all: build
+
+_mkit_data:
+	@"$(MKIT_DIR)"/make _mkit_data
+
+build:
+	@"$(MKIT_DIR)"/make build
+
+clean:
+	@"$(MKIT_DIR)"/make clean
+
+debstuff: dist
+	@"$(MKIT_DIR)"/make debstuff
+
+dist: clean
+	@"$(MKIT_DIR)"/make dist
+
+rpmstuff: dist
+	@"$(MKIT_DIR)"/make rpmstuff
+
+install: all
+	@"$(MKIT_DIR)"/make install
+
+release:
+	@"$(MKIT_DIR)"/make release
+
+release_x:
+	@"$(MKIT_DIR)"/make release_x
+
+release_y:
+	@"$(MKIT_DIR)"/make release_y
+
+release_z:
+	@"$(MKIT_DIR)"/make release_z
+
+uninstall:
+	@"$(MKIT_DIR)"/make uninstall
+
+vbump:
+	@"$(MKIT_DIR)"/make vbump
+
+vbump_x:
+	@"$(MKIT_DIR)"/make vbump_x
+
+vbump_y:
+	@"$(MKIT_DIR)"/make vbump_y
+
+vbump_z:
+	@"$(MKIT_DIR)"/make vbump_z
+
+.PHONY: all _mkit_data clean dist rpmstuff install uninstall release release_x release_y release_z vbump vbump_x vbump_y vbump_z

utils/mkit/stub

+#!/bin/bash
+# mkit - simple install helper
+# See LICENSE file for copyright and license details.
+
+init_core() {
+    #
+    # Load core modules (or die)
+    #
+    #shellcheck disable=SC1090
+    . "$MKIT_DIR/include/mkit.sh" \
+     && . "$MKIT_DIR/include/vars.sh" \
+     && return 0
+    echo "failed to load core; check if MKIT_DIR is set properly: $MKIT_DIR" >&2
+    exit 9
+}
+
+#
+# Path to MKit dir (where 'include' is)
+#
+MKIT_DIR=${MKIT_DIR:-$(dirname "$0")}
+
+init_core
+
+mkit_import ini
+
+declare -A MKIT_STUB_LICENSES
+MKIT_STUB_LICENSES[GPLv1]="http://www.gnu.org/licenses/old-licenses/gpl-1.0.md"
+MKIT_STUB_LICENSES[GPLv2]="http://www.gnu.org/licenses/old-licenses/gpl-2.0.md"
+MKIT_STUB_LICENSES[GPLv3]="http://www.gnu.org/licenses/gpl-3.0.md"
+MKIT_STUB_LICENSES[LGPLv2]="http://www.gnu.org/licenses/old-licenses/lgpl-2.1.md"
+MKIT_STUB_LICENSES[LGPLv3]="http://www.gnu.org/licenses/lgpl-3.0.md"
+MKIT_STUB_LICENSES[AGPLv3]="http://www.gnu.org/licenses/agpl-3.0.md"
+MKIT_STUB_LICENSES[FDLv1.3]="http://www.gnu.org/licenses/fdl-1.3.md"
+MKIT_STUB_LICENSES[FDLv1.2]="http://www.gnu.org/licenses/old-licenses/fdl-1.2.md"
+MKIT_STUB_LICENSES[FDLv1.1]="http://www.gnu.org/licenses/old-licenses/fdl-1.1.md"
+
+
+deploy() {
+    local file=$1       # which known file?
+    local any_name=${NiceName:-$PackageName}
+    local tmp
+    tmp=$(mktemp -t mkit.stub.deploy.XXXXXXX)
+    mkdir -p "$(dirname "$file")"
+    case $file in
+
+        Makefile)
+            echo -n "# $any_name"
+            test -n "$Tagline" && echo -n " - $Tagline"
+            echo
+            $MkLicense && echo '# See LICENSE.md file for copyright and license details.'
+            echo ''
+            echo 'MKIT_DIR=utils/mkit'
+            #shellcheck disable=SC2016
+            echo 'include $(MKIT_DIR)/mkit.mk'
+            ;;
+
+        README.md)
+            echo "$any_name"
+            tr -c '=\n' '=' <<<"$any_name"
+            echo ''
+            if test -n "$Tagline"; then
+                echo "$Tagline"
+            else
+                echo "(Nothing to say about this project.)"
+            fi
+            ;;
+
+        */mkit.ini|mkit.ini)
+            echo "[project]"
+            {
+                echo "version = $Version"
+                test -n "$Codename"     && echo "codename    = $Codename"
+                test -n "$NiceName"     && echo "name        = $NiceName"
+                test -n "$Tagline"      && echo "tagline     = $Tagline"
+                test -n "$PackageName"  && echo "pkgname     = $PackageName"
+                test -n "$Maintainer"   && echo "maintainer  = $Maintainer"
+                test -n "$VcsBrowser"   && echo "vcs_browser = $VcsBrowser"
+                test -n "$RelSrc"       && echo "relsrc      = $RelSrc"
+                test -n "$RelDst"       && echo "reldst      = $RelDst"
+            } | reformat_section
+            if updating; then
+                remake_section dist
+                remake_section ENV
+                remake_section roots
+                remake_section macros
+                remake_section modes
+                remake_section files
+            else
+                echo ""
+                echo "[dist]"
+                {
+                    $MkLicense  && echo "tarball = LICENSE.md"
+                    $MkMakefile && echo "tarball = Makefile"
+                    $MkReadme   && echo "tarball = README.md"
+                    echo "tarball = mkit.ini"
+                    $MkPackaging && echo "tarball = packaging"
+                    echo "tarball = src"
+                    echo "tarball = tests"
+                    echo "tarball = utils"
+                    $MkPackaging && echo "rpmstuff = packaging/template.spec"
+                    $MkPackaging && echo "debstuff = packaging/debian"
+                } | reformat_section
+                echo ""
+                echo "[ENV]"
+                {
+                    echo "    PREFIX = /usr/local"
+                } | reformat_section
+                echo ""
+                echo "[roots]"
+                {
+                    echo "bin = [ENV:PREFIX]/bin"
+                    echo "doc = [ENV:PREFIX]/share/doc/$PackageName"
+                } | reformat_section
+                echo ""
+                echo "[macros]"
+                {
+                    echo "__${PackageName^^}_FOO__ = Barr.."
+                } | reformat_section
+                echo ""
+                echo "[modes]"
+                {
+                    echo "bin = 755"
+                    echo "doc = 644"
+                } | reformat_section
+                echo ""
+                echo "[files]"
+                {
+                    echo "bin = src/$PackageName"
+                    $MkLicense && echo "doc = LICENSE.md"
+                    $MkReadme  && echo "doc = README.md"
+                } | reformat_section
+            fi
+            echo ""
+            echo "#mkit version=$MKIT_VERSION"
+            ;;
+
+        packaging/template.spec)
+            echo 'Name:       __MKIT_PROJ_PKGNAME__'
+            echo 'Version:    __MKIT_PROJ_VERSION__'
+            echo 'Release:    1%{?dist}'
+            echo 'Summary:    __MKIT_PROJ_NAME__ - __MKIT_PROJ_TAGLINE__'
+            test -n "$VcsBrowser" && echo 'URL:        __MKIT_PROJ_VCS_BROWSER__'
+            $MkLicense && echo "License:    $License"
+            echo 'Source0:    %{name}-%{version}.tar.gz'
+            echo 'BuildArch:  noarch'
+            echo ''
+            echo 'Requires: MKIT_STUB_REQUIRES'
+            echo '%description'
+            echo 'MKIT_STUB_DESCRIPTION'
+            echo ''
+            echo '%prep'
+            echo '%setup -q'
+            echo ''
+            echo '%build'
+            echo 'make %{?_smp_mflags} PREFIX=/usr'
+            echo ''
+            echo '%install'
+            echo '%make_install PREFIX=/usr'
+            echo ''
+            echo '%files'
+            echo 'MKIT_STUB_FILELIST'
+            echo ''
+            echo '%changelog'
+            echo ''
+            echo '# specfile built with MKit __MKIT_SELF_VERSION__'
+            ;;
+
+        packaging/debian/copyright)
+            echo ""
+            ;;
+
+        packaging/debian/control)
+            echo 'Source: __MKIT_PROJ_PKGNAME__'
+            echo 'Maintainer: __MKIT_PROJ_MAINTAINER__'
+            test -n "$VcsBrowser" && echo 'Vcs-Browser: __MKIT_PROJ_VCS_BROWSER__'
+            echo 'Section: misc'
+            echo 'Priority: extra'
+            echo 'Standards-Version: 3.9.2'
+            echo 'Build-Depends:'
+            echo ' debhelper (>= 9),'
+            echo ''
+            echo 'Package: __MKIT_PROJ_PKGNAME__'
+            echo 'Architecture: all'
+            echo 'Depends: MKIT_STUB_REQUIRES'
+            echo 'Description: __MKIT_PROJ_NAME__ - __MKIT_PROJ_TAGLINE__'
+            echo ' MKIT_STUB_DESCRIPTION'
+            echo ''
+            echo '# control file built with MKit __MKIT_SELF_VERSION__'
+            ;;
+
+        packaging/debian/changelog)
+            echo '__MKIT_PROJ_PKGNAME__ (__MKIT_PROJ_VERSION__-1) UNRELEASED; urgency=medium'
+            echo ''
+            echo '  * Initial release. (Closes: #XXXXXX)'
+            echo ''
+            echo " -- __MKIT_PROJ_MAINTAINER__  $(date -R)"
+            ;;
+
+        packaging/debian/compat)
+            echo 9
+            ;;
+
+        packaging/debian/rules)
+            echo '#!/usr/bin/make -f'
+            echo ''
+            echo '%:'
+            echo ''
+            echo '	dh $@'
+            echo ''
+            echo 'override_dh_auto_install:'
+            echo ''
+            echo '	make install PREFIX=/usr DESTDIR=debian/tmp'
+            ;;
+
+        packaging/debian/source/format)
+            echo '3.0 (quilt)'
+            ;;
+
+        packaging/debian/install)
+            echo MKIT_STUB_FILELIST
+            ;;
+
+        src/*.skel)
+            echo 'echo "my version is: __MKIT_PROJ_VERSION__"'
+            echo 'echo "And that'"'"'s all, folks!"'
+            ;;
+
+        LICENSE.md)
+            local url   # license URL
+            url="${MKIT_STUB_LICENSES[$License]}"
+            curl -sf "$url" \
+             || die "failed to download license: $url"
+            ;;
+
+        .mkit/autoclean)
+            ;;
+
+        MKIT_STUB_README.md)
+            echo "FINISHING MKIT CONFIGURATION"
+            echo "============================"
+            echo ""
+            echo "Congratulations, your new project has been configured!"
+            echo ""
+            echo "However, the *stub* script is not able to figure out"
+            echo "everything, so few things still need to be done manually."
+            echo "This document will guide you throught the rest of the"
+            echo "process."
+            echo ""
+            echo ""
+            echo "Structure"
+            echo "---------"
+            echo ""
+            echo "First, let's go through the directory structure:"
+            echo ""
+            echo " *  *src* directory - here is your main place to store"
+            echo "    source files.  This includes also documents like user"
+            echo "    manuals---IOW, anything intended to end up on user's"
+            echo "    machine should be uder 'src'."
+            echo ""
+            echo "    Note that during build time, files named ending with"
+            echo "    '.skel' are subject to macro expansion, see mkit.ini"
+            echo "    section below for details."
+            echo ""
+            echo " *  *notes* directory - here you shall store notes"
+            echo "    intended for people contributing to your project,"
+            echo "    for instance, guidelines, coding style documents,"
+            echo "    TODOs, ideas, plans..."
+            echo ""
+            echo " *  *utils* directory - here you shall store utilities"
+            echo "    and scripts that will help you with project maintenance,"
+            echo "    and that, unlike software like compilers or versioning"
+            echo "    systems, can (and should) be embedded inside the"
+            echo "    repository."
+            echo ""
+            echo "    MKit itself is one nice example. :)"
+
+            if $MkPackaging; then
+            echo ""
+            echo " *  *packaging* directory contains templates that enable"
+            echo "    MKit create raw stuffs used to create DEB or RPM"
+            echo "    packages.  Similar to '.skel' files in 'src', all files"
+            echo "    here are automatically considered for macro expansion,"
+            echo "    no matter how they are named (see mkit.ini section"
+            echo "    below)."
+            echo ""
+            echo "    NOTE: these templates, as well as any packages created by"
+            echo "    them are intended only for experimental, private use and"
+            echo "    testing."
+            echo ""
+            echo "    Should you have ambition to create 'real' packages for"
+            echo "    OS distribution such as Debian or Fedora (what a great"
+            echo "    idea!), be prepared that you will need to follow their"
+            echo "    guidelines.  This will most probably mean huge changes"
+            echo "    to these packages or even changes to your workflow."
+            echo ""
+            echo ""
+            echo "Placeholders"
+            echo "------------"
+            echo ""
+            echo "At places where *stub* script did not have way to get all"
+            echo "information automatically, it has inserted placeholders."
+            echo "You will need to go through all of these placeholders and"
+            echo "replace them with proper data."
+            echo ""
+            echo "Please follow instructions:"
+            echo ""
+            echo " 1. Look for placeholders starting with \`MKIT_STUB_\`"
+            echo "    prefix by calling this command:"
+            echo ""
+            echo "        grep -l MKIT_STUB_ -r"
+            echo ""
+            echo " 2. Go through each file and locate the placeholder.  (You"
+            echo "    will also see placeholders like \`__MKIT_*__\`, you can"
+            echo "    ignore those."
+            echo ""
+            echo " 3. Replace placeholder with appropriate information:"
+            echo ""
+            echo "     *  \`MKIT_STUB_REQUIRES\` - Requirements of your"
+            echo "        project."
+            echo ""
+            echo "     *  \`MKIT_STUB_DESCRIPTION\` - Description of your"
+            echo "        project (few sentences to paragraphs)."
+            echo ""
+            echo "     *  \`MKIT_STUB_FILELIST\` - List of full paths to"
+            echo "        your files after installation."
+            echo ""
+            echo "        Note that in case of debian/install files, PREFIX"
+            echo "        based paths (eg. /usr/bin) in this file should be as"
+            echo "        if PREFIX was /usr."
+            echo ""
+            echo "        In case of Fedora-based distro, you should make use"
+            echo "        of RPM macros:"
+            echo ""
+            echo "            https://fedoraproject.org/wiki/Packaging:RPMMacros"
+            echo ""
+            echo "    Refer to these documents for further details:"
+            echo ""
+            echo "        http://rpm-guide.readthedocs.io/"
+            echo "        https://www.debian.org/doc/manuals/maint-guide/"
+            fi
+
+            echo ""
+            echo ""
+            echo "mkit.ini"
+            echo "--------"
+            echo ""
+            echo "Most sections still need to be reviewed. In order to do"
+            echo "that, you will need to understand how MKit works:"
+            echo ""
+            echo " 1. First, you need to define *roles* your files will play"
+            echo "    when they are installed on user's file systems.  These"
+            echo "    roles then imply where and how the files should be"
+            echo "    deployed."
+            echo ""
+            echo "    Typical example of a role is e.g. 'bin' for commands"
+            echo "    (normally under '/usr/bin' or '/usr/local/bin'), 'doc'"
+            echo "    for documents or 'lib' for libraries."
+            echo ""
+            echo " 2. Next, in \`[roots]\` section, you have to set target"
+            echo "    root directory for each role.  However, in order to"
+            echo "    enable people to implement local conventions, it is"
+            echo "    considered a good manner to also respect PREFIX"
+            echo "    environment variable.  For this reason, most paths"
+            echo "    need to start with \`[ENV:PREFIX]\`."
+            echo ""
+            echo " 3. \`[files]\` section is where you assign actual files"
+            echo "    from your repository to their final paths.  The format"
+            echo "    is \`ROLE = REPOPATH [RENAMED]\`, where ROLE is file's"
+            echo "    role, REPOPATH is relative path to the file."
+            echo ""
+            echo "    Final path is then composed by taking path assigned to"
+            echo "    ROLE and appending file's name.  However, if you need"
+            echo "    the deployed file to have different name than in the"
+            echo "    codebase, you can specify the other name as RENAMED."
+            echo ""
+            echo "    Note that you don't need to address every single file"
+            echo "    individually, if in your repo you have a directory with"
+            echo "    100 files of the same role, you can add just path to the"
+            echo "    directory itself."
+            echo ""
+            echo " 4. If some roles require special permissions on your files,"
+            echo "    \`[modes]\` section is your friend.  Permissions here"
+            echo "    should be in UNIX octal format."
+            echo ""
+            echo " 5. Next, \`[macros]\` section allows you to define own"
+            echo "    placeholders that will be replaced when your scripts are"
+            echo "    built.  Each file in 'src' directory that is named with"
+            echo "    '.skel' suffix, and each file from 'packaging' directory"
+            echo "    (no matter its name), can contain one or more of macros"
+            echo "    defined here, plus range of macros automatically defined"
+            echo "    by MKit.  During build, these macros are replaced with"
+            echo "    their actual values."
+            echo ""
+            echo " 6. Less interesting, but important section is \`[dist]\`,"
+            echo "    which lists files in your codebase that will be added"
+            echo "    to distribution tarball (part of \"stuffs\" mentioned"
+            echo "    above).  Listing directory here will include all its"
+            echo "    contents, and normally it's OK to be very inclusive, so"
+            echo "    most of the time this section should be OK."
+            echo ""
+            echo " 7. Even less interesting is section \`[ENV]\`.  It is"
+            echo "    special in that it provides *default* value for an"
+            echo "    environment variable.  You almost never need to touch"
+            echo "    this."
+            echo ""
+            echo " 8. Finally, the most interesting section!  \`[project]\`,"
+            echo "    provides most general information for your project such"
+            echo "    as name and version."
+            echo ""
+            echo "    Note that the \`version\` key is another \"special"
+            echo "    snowflake\" -- it is now set to 0.0.0, and you **should"
+            echo "    not need** to change  it manually.  When you feel you"
+            echo "    a are ready to release next version of your evolving"
+            echo "    project, simply call \`make vbump\` and MKit will take"
+            echo "    care of everything!"
+
+            if $MkMakefile; then
+            echo ""
+            echo ""
+            echo "Makefile"
+            echo "--------"
+            echo ""
+            echo "*stub* script also created a Makefile for you, but all"
+            echo "it really does is include MKit's own mkit.mk, which in turn"
+            echo "only maps \`make\` targets to actual mkit script calls."
+            echo "Unless your project already uses GNU Make, you should not"
+            echo "need to change this file."
+            fi
+
+            if $MkReadme; then
+            echo ""
+            echo ""
+            echo "README.md"
+            echo "---------"
+            echo ""
+            echo "Each serious project needs a serious README.  Which is why"
+            echo "*stub* has created a 'stub' of one for you."
+            fi
+
+            echo ""
+            echo ""
+            echo "The final touch"
+            echo "---------------"
+            echo ""
+            echo "Once you have reviewed everything, just delete this file!"
+            ;;
+
+    esac >"$tmp"
+    cat "$tmp" > "$file"
+    rm "$tmp"
+}
+
+known_licenses() {
+    local key
+    local first=true
+    for key in "${!MKIT_STUB_LICENSES[@]}"; do
+        $first && echo "$key"  && continue
+        echo ", $key"
+    done
+}
+
+usage() {
+    {
+        echo "Usage:"
+        echo "   stub [options] new PKGNAME"
+        echo "   stub [options] update"
+        echo "   stub -L"
+        echo ""
+        echo "Options:"
+        echo ""
+        echo "    -c CODENAME   your project codename"
+        echo "    -t TAGLINE    your project tagline"
+        echo "    -b RELSRC     pre-release branch"
+        echo "    -B RELDST     post-release branch"
+        echo "    -n NICENAME   your project's 'nice' name"
+        echo "    -l LICENSE    your options's license (see -L)"
+        echo "    -m MAINT      project maintainer's name and e-mail"
+        echo "    -v URL        URL to public code browser"
+        echo "    -V VERSION    initial version (default: 0.0.0)"
+        echo "    -a            enable autoclean ('make clean' after"
+        echo "                  each 'make install')"
+        echo "    -g            make git commits before and adter"
+        echo "                  (implies -y)"
+        echo "    -y            don't ask, just do it"
+        echo "    -R            skip creating README.md"
+        echo "    -M            skip creating Makefile"
+        echo "    -P            skip creating packaging templates"
+        echo "    -L            list known licenses and exit"
+        echo ""
+        echo "PKGNAME should be packaging-friendly name, ie. consist"
+        echo "only of small letters, numbers, underscore and dash."
+        echo "For your 'real' name, use NICENAME, which can be any"
+        echo "string."
+    } >&2
+    exit 2
+}
+
+confirm() {
+    local response      # user's response to our warning
+    $Force && return 0
+    {
+        echo "Warning: This operation can be destructive for your"
+        echo "current codebase.  At least following files will be"
+        echo "created or overwritten:"
+        echo ""
+        $MkPackaging    && echo " *  'packaging' directory (pass -P to avoid)"
+        $MkMakefile     && echo " *  'Makefile' (pass -M to avoid)"
+        $MkReadme       && echo " *  'README.md' (pass -R to avoid)"
+        $MkLicense      && echo " *  'LICENSE.md' (omit -l to avoid)"
+        echo " *  'mkit.ini'"
+        echo ""
+        read -p "Type 'yes' to proceed: " -r response
+    } >&2
+    test "$response" == "yes" && return 0
+    warn "Aborting."
+    return 1
+}
+
+mkcommit_backup() {
+    git ls-files --others \
+      | grep -qv -e '^utils/mkit$' -e '^utils/mkit/' \
+     || { warn "nothing to back up"; return 0; }
+    git add .                           || return
+    git rm -r --cached utils/mkit       || return
+    git commit -m "WIP [mkit/stub] backup" || return
+}
+
+mkcommit_mkit_code() {
+    git ls-files --others \
+      | grep -q -e '^utils/mkit$' -e '^utils/mkit/' \
+     || return 0
+    git add utils/mkit || return
+    git commit -m "WIP [mkit/stub] Add MKit version v$MKIT_VERSION" || return
+}
+
+mkcommit_mkit_conf() {
+    local msg       # commit message (the important art
+    git add . || return
+    case $Action in
+        new)    msg="Add MKit configuration stub" ;;
+        update) msg="Update MKit configuration"   ;;
+    esac
+    git commit -m "WIP [mkit/stub] $msg" || return
+}
+
+deploy_packaging() {
+    rm -rf packaging
+    deploy packaging/template.spec
+    deploy packaging/debian/copyright
+    deploy packaging/debian/control
+    deploy packaging/debian/changelog
+    deploy packaging/debian/compat
+    deploy packaging/debian/install
+    deploy packaging/debian/rules
+    deploy packaging/debian/source/format
+}
+
+init_from_existing() {
+    #
+    # Initialize variables from old mkit.ini
+    #
+    test -f "$MKIT_INI" \
+     || die "mkit.ini not found; aborting update: $MKIT_INI"
+    user_gave Codename    || Codename=$(ini_raw1v project:codename)
+    user_gave License     || License=$(ini_raw1v project:license)
+    user_gave Maintainer  || Maintainer=$(ini_raw1v project:maintainer)
+    user_gave NiceName    || NiceName=$(ini_raw1v project:name)
+    user_gave PackageName || PackageName=$(ini_raw1v project:pkgname)
+    user_gave RelDst      || RelDst=$(ini_raw1v project:reldst)
+    user_gave RelSrc      || RelSrc=$(ini_raw1v project:relsrc)
+    user_gave Tagline     || Tagline=$(ini_raw1v project:tagline)
+    user_gave VcsBrowser  || VcsBrowser=$(ini_raw1v project:vcs_browser)
+    user_gave Version     || Version=$(ini_raw1v project:version)
+}
+
+ini_raw1v() {
+    #
+    # Read raw scalar from mkit.ini
+    #
+    local path=$1
+    MKIT_INI_EXPAND=0 ini 1value "$path"
+}
+
+user_gave() {
+    #
+    # True if user gave value to variable $1
+    #
+    local var=$1    # name of the variable
+    { test "${UserGave[$var]}" == 1; } 2>/dev/null
+}
+
+updating() {
+    #
+    # Are we updating?
+    #
+    test "$Action" == update
+}
+
+remake_section() {
+    #
+    # Re-compose mkit.ini section $1
+    #
+    local section=$1
+    local key
+    local value
+    ini lskeys "$section" | grep -q . \
+     || return 1
+    echo ""
+    echo "[$section]"
+    ini lskeys "$section" \
+      | while read -r key; do
+            MKIT_INI_EXPAND=0 ini values "$section:$key" \
+              | while read -r value; do
+                    echo "$key = $value"
+                done
+        done \
+      | reformat_section
+}
+
+reformat_section() {
+    #
+    # Re-format "k = v" on stdin as "nice" ini section
+    #
+    local key
+    local eq
+    local value
+    while read -r key eq value; do
+        test "$eq" == "=" || {
+            warn "ignoring malformed ini line: $key $eq $value"
+            continue
+        }
+        echo "$key = $value"
+    done \
+      | sed 's/ *= */=/; s/^ *//; s/ *$//' \
+      | column -t -s= -o' = ' \
+      | sed 's/^/    /'
+}
+
+main() {
+    local NiceName          # human-readable project name
+    local PackageName       # machine-safe project (package) name
+    local RelSrc            # pre-release branch
+    local RelDst            # post-release branch
+    local Codename          # release codename
+    local Tagline           # project tagline
+    local Maintainer        # project maintainer (Name + e-mail)
+    local VcsBrowser        # VCS browser (eg. GitHub URL)
+    local Version=0.0.0     # project version
+    local AutoClean=false   # touch .mkit/autoclean?
+    local MkCommits=false   # create pre/post git commits?
+    local Force=false       # go without asking?
+    local MkReadme=true     # create README.md?
+    local MkMakefile=true   # create Makefile?
+    local MkPackaging=true  # create packaging templates?
+    local MkLicense=false   # create LICENSE.md file
+    local Action            # 'update' to respect existing, 'new' to force
+                            # rewrite incl. MKIT_STUB_* placeholders
+    declare -A UserGave
+    while true; do case $1 in
+        -n) NiceName=$2;   UserGave[NiceName]=1;   shift 2 || usage ;;
+        -b) RelSrc=$2;     UserGave[RelSrc]=1;     shift 2 || usage ;;
+        -B) RelDst=$2;     UserGave[RelDst]=1;     shift 2 || usage ;;
+        -c) Codename=$2;   UserGave[Codename]=1;   shift 2 || usage ;;
+        -t) Tagline=$2;    UserGave[Tagline]=1;    shift 2 || usage ;;
+        -l) License=$2;    UserGave[License]=1;    shift 2 || usage ;;
+        -m) Maintainer=$2; UserGave[Maintainer]=1; shift 2 || usage ;;
+        -v) VcsBrowser=$2; UserGave[VcsBrowser]=1; shift 2 || usage ;;
+        -V) Version=$2;    UserGave[Version]=1;    shift 2 || usage ;;
+        -M) MkMakefile=false;   shift ;;
+        -R) MkReadme=false;     shift ;;
+        -a) AutoClean=true;     shift ;;
+        -y) Force=true;         shift ;;
+        -g) MkCommits=true;     shift ;;
+        -P) MkPackaging=false;  shift ;;
+        -L) known_licenses | tr , '\n'; exit 0 ;;
+        -*) usage ;;
+        *)  break ;;
+    esac done
+    Action=$1; PackageName=$2
+    case $Action:$PackageName in
+        new:)     usage ;;
+        new:*)    :     ;;
+        update:)  :     ;;
+        update:*) usage ;;
+        *)        usage ;;
+    esac
+    updating && init_from_existing
+    if test -n "$License"; then
+        known_licenses | grep -qxF "$License" \
+         || die "unknown license (use -L to get list): $License"
+        MkLicense=true
+    fi
+    if $MkCommits; then
+        mkcommit_backup || die "failed creating backup commit"
+        Force=true
+    fi
+    confirm            || return 1
+    deploy "$MKIT_INI"
+    deploy src/"$PackageName".skel
+    $MkMakefile     && deploy Makefile
+    $MkReadme       && deploy README.md
+    $MkLicense      && deploy LICENSE.md
+    $AutoClean      && deploy .mkit/autoclean
+    $MkPackaging    && deploy_packaging
+    if $MkCommits; then
+        mkcommit_mkit_code || die "failed creating post-commit"
+        mkcommit_mkit_conf || die "failed creating post-commit"
+    fi
+    deploy MKIT_STUB_README.md
+    warn "Configuration stub built, follow instructions in"
+    warn "MKIT_STUB_README.md to finish configuration."
+    return 0
+}
+
+main "$@"