Re: [PATCH] Add __git_ps1_pc to use as PROMPT_COMMAND

Simon Oosthoek [off-list ref] writes:

+# __git_ps1_pc accepts 0 arguments (for now)
+# It is meant to be used as PROMPT_COMMAND, it sets PS1
+__git_ps1_pc ()
+{
+	local g="$(__gitdir)"
+	if [ -n "$g" ]; then
+...
+	fi
+}

This looks awfully similar to the existing code in __git_ps1
function.  Without refactoring to share the logic between them, it
won't be maintainable.