[PATCH v3] config: correct '**' matching in includeIf patterns
- From
Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
- Date
- Mar 26, 2019, 09:41 UTC
- Message-ID
- <20190326094101.26294-1-pclouds@gmail.com>
- In-Reply-To
- <20190324131755.26821-1-pclouds@gmail.com>
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@gmail.com> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> --- 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