Add dry mode to skip actyal deploying/removing

src/include/deploy.sh

@@ -1,5 +1,17 @@
 #!/bin/bash
 
+_maybe() {
+    #
+    # Call the deploy command $1 $@ unless in dry mode
+    #
+    local cmd="$1"; shift
+    $MKIT_DRY && echo "MKIT_DRY: $cmd" "$@" && return
+    case "$cmd" in
+        cp|rm|rmdir|chmod|mkdir) $cmd "$@" ;;
+        install)                 command -p install "$@" ;;
+        *)                       die "bad command called";;
+    esac
+}
 
 check_env() {
     #
@@ -37,11 +49,11 @@ deploy_item() {
     local mode="${3:-$MKIT_DEFAULT_MODE}"
     if test -d "$src";
     then
-        mkdir -vp "$(dirname "$dst")"
-        cp -Tvr "$src" "$dst"
+        _maybe mkdir -vp "$(dirname "$dst")"
+        _maybe cp -Tvr "$src" "$dst"
         find "$dst" -type f -print0 | xargs -0 chmod -c "$mode"
     else
-        command -p install -DTvm "$mode" "$src" "$dst"
+        _maybe install -DTvm "$mode" "$src" "$dst"
     fi
 }
 
@@ -98,7 +110,7 @@ uninstall() {
               | while read src;
                 do
                     dst=$(get_dst "$group" "$src")
-                    rm -vrf "$dst"
+                    _maybe rm -vrf "$dst"
                 done
         done
 }

src/make.skel

@@ -10,6 +10,7 @@ export MKIT_VERSION=__VERSION__
 
 export MKIT_DIR=${MKIT_DIR:-$(dirname "$0")}
 export MKIT_LOCAL=${MKIT_LOCAL:-.mkit}
+export MKIT_DRY=${MKIT_DRY:-false}
 
 . "$MKIT_DIR/include/mkit.sh" || die "failed to init; check if MKIT_DIR is set properly: $MKIT_DIR"