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authorLibravatar Michael Haggerty <mhagger@alum.mit.edu>2011-09-15 23:10:27 +0200
committerLibravatar Junio C Hamano <gitster@pobox.com>2011-10-05 13:45:30 -0700
commit7e9d2fe96060957d90870d2fac9b85608423e277 (patch)
treedc68fe7286d63488a9a9a0115554b7ac75a16e41
parentRefactor check_refname_format() (diff)
downloadtgif-7e9d2fe96060957d90870d2fac9b85608423e277.tar.xz
Do not allow ".lock" at the end of any refname component
Allowing any refname component to end with ".lock" is looking for trouble; for example, $ git br foo.lock/bar $ git br foo fatal: Unable to create '[...]/.git/refs/heads/foo.lock': File exists. Therefore, do not allow any refname component to end with ".lock". Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rw-r--r--Documentation/git-check-ref-format.txt4
-rw-r--r--refs.c4
-rwxr-xr-xt/t1402-check-ref-format.sh8
3 files changed, 7 insertions, 9 deletions
diff --git a/Documentation/git-check-ref-format.txt b/Documentation/git-check-ref-format.txt
index dcb8cc38a3..9114751966 100644
--- a/Documentation/git-check-ref-format.txt
+++ b/Documentation/git-check-ref-format.txt
@@ -28,7 +28,7 @@ git imposes the following rules on how references are named:
. They can include slash `/` for hierarchical (directory)
grouping, but no slash-separated component can begin with a
- dot `.`.
+ dot `.` or end with the sequence `.lock`.
. They must contain at least one `/`. This enforces the presence of a
category like `heads/`, `tags/` etc. but the actual names are not
@@ -47,8 +47,6 @@ git imposes the following rules on how references are named:
. They cannot end with a slash `/` nor a dot `.`.
-. They cannot end with the sequence `.lock`.
-
. They cannot contain a sequence `@{`.
. They cannot contain a `\`.
diff --git a/refs.c b/refs.c
index 52597244b8..5a0bd0f7af 100644
--- a/refs.c
+++ b/refs.c
@@ -898,6 +898,8 @@ static int check_refname_component(const char *ref)
return -1; /* Component has zero length. */
if (ref[0] == '.')
return -1; /* Component starts with '.'. */
+ if (cp - ref >= 5 && !memcmp(cp - 5, ".lock", 5))
+ return -1; /* Refname ends with ".lock". */
return cp - ref;
}
@@ -931,8 +933,6 @@ int check_refname_format(const char *ref, int flags)
if (ref[component_len - 1] == '.')
return -1; /* Refname ends with '.'. */
- if (component_len >= 5 && !memcmp(&ref[component_len - 5], ".lock", 5))
- return -1; /* Refname ends with ".lock". */
if (!(flags & REFNAME_ALLOW_ONELEVEL) && component_count < 2)
return -1; /* Refname has only one component. */
return 0;
diff --git a/t/t1402-check-ref-format.sh b/t/t1402-check-ref-format.sh
index 1cad88f2dc..419788f78f 100755
--- a/t/t1402-check-ref-format.sh
+++ b/t/t1402-check-ref-format.sh
@@ -43,8 +43,8 @@ invalid_ref 'heads/foo?bar'
valid_ref 'foo./bar'
invalid_ref 'heads/foo.lock'
invalid_ref 'heads///foo.lock'
-valid_ref 'foo.lock/bar'
-valid_ref 'foo.lock///bar'
+invalid_ref 'foo.lock/bar'
+invalid_ref 'foo.lock///bar'
valid_ref 'heads/foo@bar'
invalid_ref 'heads/v@{ation'
invalid_ref 'heads/foo\bar'
@@ -160,7 +160,7 @@ invalid_ref_normalized 'heads/./foo'
invalid_ref_normalized 'heads\foo'
invalid_ref_normalized 'heads/foo.lock'
invalid_ref_normalized 'heads///foo.lock'
-valid_ref_normalized 'foo.lock/bar' 'foo.lock/bar'
-valid_ref_normalized 'foo.lock///bar' 'foo.lock/bar'
+invalid_ref_normalized 'foo.lock/bar'
+invalid_ref_normalized 'foo.lock///bar'
test_done