On 2014-10-15 00:06, Jess Austin wrote:
> @@ -501,6 +506,13 @@ __git_ps1 ()
>       local f="$w$i$s$u"
>       local gitstring="$c$b${f:+$z$f}$r$p"
>  
> +     if [ -n "${GIT_PS1_HIDE_IF_PWD_IGNORED}" ] &&
> +        [ "$(git config --bool bash.hideIfPwdIgnored)" != "false" ] &&
> +        git check-ignore -q .
> +     then
> +             printf_format=""
> +     fi
> +
>       if [ $pcmode = yes ]; then
>               if [ "${__git_printf_supports_v-}" != yes ]; then
>                       gitstring=$(printf -- "$printf_format" "$gitstring")

This is broken in pcmode due to a Bash bug.  The command:
    printf -v foo "" asdf
is a no-op in Bash.  The variable foo is never changed in any way --
it is neither unset nor set to the empty string.

Also, I noticed that I get an error message if I cd into .git:
    fatal: This operation must be run in a work tree

I think the following change will fix the above issues, and it has the
advantage of avoiding unnecessary work if the directory is ignored:

diff --git a/contrib/completion/git-prompt.sh b/contrib/completion/git-prompt.sh
index 6a4ce53..68ac82a 100644
--- a/contrib/completion/git-prompt.sh
+++ b/contrib/completion/git-prompt.sh
@@ -374,6 +374,17 @@ __git_ps1 ()
        local inside_gitdir="${repo_info##*$'\n'}"
        local g="${repo_info%$'\n'*}"
 
+       if [ "true" = "$inside_worktree" ] &&
+          [ -n "${GIT_PS1_HIDE_IF_PWD_IGNORED}" ] &&
+          [ "$(git config --bool bash.hideIfPwdIgnored)" != "false" ] &&
+          git check-ignore -q .
+       then
+               if [ $pcmode = yes ]; then
+                       PS1="$ps1pc_start$ps1pc_end"
+               fi
+               return
+       fi
+
        local r=""
        local b=""
        local step=""
@@ -506,13 +517,6 @@ __git_ps1 ()
        local f="$w$i$s$u"
        local gitstring="$c$b${f:+$z$f}$r$p"
 
-       if [ -n "${GIT_PS1_HIDE_IF_PWD_IGNORED}" ] &&
-          [ "$(git config --bool bash.hideIfPwdIgnored)" != "false" ] &&
-          git check-ignore -q .
-       then
-               printf_format=""
-       fi
-
        if [ $pcmode = yes ]; then
                if [ "${__git_printf_supports_v-}" != yes ]; then
                        gitstring=$(printf -- "$printf_format" "$gitstring")

It would be good to add additional test cases for pcmode (two or three
arguments to __git_ps1) and 'cd .git' so that the above issues don't
reappear.

Thanks,
Richard
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