[PATCH 7/8] strbuf_check_ref_format(): expand only local branches
From: Jeff King <hidden>
Date: 2017-02-28 12:43:45
Subsystem:
the rest · Maintainer:
Linus Torvalds
This function asks strbuf_branchname() to expand any @-marks
in the branchname, and then we blindly stick refs/heads/ in
front of the result. This is obviously nonsense if the
expansion is "HEAD" or a ref in refs/remotes/.
The most obvious end-user effect is that creating or
renaming a branch with an expansion may have confusing
results (e.g., creating refs/heads/origin/master from
"@{upstream}" when the operation should be disallowed).
We can fix this by telling strbuf_branchname() that we are
only interested in local expansions. Any unexpanded bits are
then fed to check_ref_format(), which either disallows them
(in the case of "@{upstream}") or lets them through
("refs/heads/@" is technically valid, if a bit silly).
Signed-off-by: Jeff King <redacted>
---
sha1_name.c | 2 +-
t/t3204-branch-name-interpretation.sh | 4 ++--
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/sha1_name.c b/sha1_name.c
index b21997c29..c0cfb69a4 100644
--- a/sha1_name.c
+++ b/sha1_name.c@@ -1317,7 +1317,7 @@ void strbuf_branchname(struct strbuf *sb, const char *name, unsigned allowed) int strbuf_check_branch_ref(struct strbuf *sb, const char *name) { - strbuf_branchname(sb, name, 0); + strbuf_branchname(sb, name, INTERPRET_BRANCH_LOCAL); if (name[0] == '-') return -1; strbuf_splice(sb, 0, 0, "refs/heads/", 11);
diff --git a/t/t3204-branch-name-interpretation.sh b/t/t3204-branch-name-interpretation.sh
index c8fec5b8c..6115ad504 100755
--- a/t/t3204-branch-name-interpretation.sh
+++ b/t/t3204-branch-name-interpretation.sh@@ -42,7 +42,7 @@ test_expect_success 'update branch via local @{upstream}' ' expect_branch local two ' -test_expect_failure 'disallow updating branch via remote @{upstream}' ' +test_expect_success 'disallow updating branch via remote @{upstream}' ' git update-ref refs/remotes/origin/remote one && git branch --set-upstream-to=origin/remote &&
@@ -98,7 +98,7 @@ test_expect_success 'delete @{upstream} expansion matches -r option' ' # and not refs/heads/HEAD. These tests should not imply that refs/heads/@ is a # sane thing, but it _is_ technically allowed for now. If we disallow it, these # can be switched to test_must_fail. -test_expect_failure 'create branch named "@"' ' +test_expect_success 'create branch named "@"' ' git branch -f @ one && expect_branch refs/heads/@ one '
--
2.12.0.359.gd4c8c42e9