tree 7ee6a11bb7465d2c938a39410c958acfb9639a43
parent e0020b2f82910f50bc697d86aff70c3796fbdc41
author Emily Shaffer <emilyshaffer@google.com> 1583208306 -0800
committer Junio C Hamano <gitster@pobox.com> 1584290146 -0700

prefix_path: show gitdir if worktree unavailable

If there is no worktree at present, we can still hint the user about
Git's current directory by showing them the absolute path to the Git
directory. Even though the Git directory doesn't make it as easy to
locate the worktree in question, it can still help a user figure out
what's going on while developing a script.

This fixes a segmentation fault introduced in e0020b2f
("prefix_path: show gitdir when arg is outside repo", 2020-02-14).

Signed-off-by: Emily Shaffer <emilyshaffer@google.com>
[jc: added minimum tests, with help from Szeder Gábor]
Signed-off-by: Junio C Hamano <gitster@pobox.com>