The current wildmatch() call for includeIf's gitdir pattern does not
pass the WM_PATHNAME flag. Without this flag, '*' is treated _almost_
the same as '**' (because '*' also matches slashes) with one exception:
'/**/' can match a single slash. The pattern 'foo/**/bar' matches
'foo/bar'.
But '/*/', which is essentially what wildmatch engine sees without
WM_PATHNAME, has to match two slashes (and '*' matches nothing). Which
means 'foo/*/bar' cannot match 'foo/bar'. It can only match 'foo//bar'.
The result of this is the current wildmatch() call works most of the
time until the user depends on '/**/' matching no path component. And
also '*' matches slashes while it should not, but people probably
haven't noticed this yet. The fix is straightforward.
Reported-by: Jason Karns <jason.karns@xxxxxxxxx>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx>
---
v3 updates the test to avoid mkdir and cd, and break long lines.
config.c | 2 +-
t/t1305-config-include.sh | 13 +++++++++++++
2 files changed, 14 insertions(+), 1 deletion(-)
diff --git a/config.c b/config.c
index 0f0cdd8c0f..c2846df3f1 100644
--- a/config.c
+++ b/config.c
@@ -242,7 +242,7 @@ static int include_by_gitdir(const struct config_options *opts,
}
ret = !wildmatch(pattern.buf + prefix, text.buf + prefix,
- icase ? WM_CASEFOLD : 0);
+ WM_PATHNAME | (icase ? WM_CASEFOLD : 0));
if (!ret && !already_tried_absolute) {
/*
diff --git a/t/t1305-config-include.sh b/t/t1305-config-include.sh
index 635918505d..579a86b7f8 100755
--- a/t/t1305-config-include.sh
+++ b/t/t1305-config-include.sh
@@ -229,6 +229,19 @@ test_expect_success 'conditional include, early config reading' '
)
'
+test_expect_success 'conditional include with /**/' '
+ REPO=foo/bar/repo &&
+ git init $REPO &&
+ cat >>$REPO/.git/config <<-\EOF &&
+ [includeIf "gitdir:**/foo/**/bar/**"]
+ path=bar7
+ EOF
+ echo "[test]seven=7" >$REPO/.git/bar7 &&
+ echo 7 >expect &&
+ git -C $REPO config test.seven >actual &&
+ test_cmp expect actual
+'
+
test_expect_success SYMLINKS 'conditional include, set up symlinked $HOME' '
mkdir real-home &&
ln -s real-home home &&
--
2.21.0.479.g47ac719cd3
