Add taskwarrior context to PS1

...yep, we're getting a bit naggy...

dotfiles/bash/post.bashrc

@@ -23,13 +23,23 @@ __bashum__save_rv() {
     [ -w "${rvfile%/*}" ] && echo "$1" > "$rvfile"
 }
 
+__bashum__task_context() {
+    local ctx=$(task _get rc.context)
+    test -n "$ctx" || return
+    echo -n "|$ctx"
+}
+
 __bashum__mkps1() {
     # these functions must be already defined by ~/.bash/user/*.bashrc
     # and ~/.bash/host/*.bashrc
     test -n "$SSH_CONNECTION" \
      && echo -n "$(__bashum__mkps1user)"    # username only when on ssh
     echo -n "$lwhite@"                      # nice shiny at sign
-    echo -n "$(__bashum__mkps1host):"       # hostname colored per host
+    echo -n "$(__bashum__mkps1host)"        # hostname colored per host
+    echo -n "$yellow"                       #\
+    echo -n     '$(__bashum__task_context)' # > taskwarrior's context
+    echo -n "$normal"                       #/
+    echo -n "$lwhite:"                      # nice shiny colon
     echo -n "$lblue\w$normal"               # current workdir
     echo -n "$green"                        #\
     echo -n     '$(__git_ps1 "(%s)")'       # > git's PS1