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check-ref-format --print: Normalize refnames that start with slashes

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When asked if "refs///heads/master" is valid, check-ref-format says "Yes,
it is well formed", and when asked to print canonical form, it shows
"refs/heads/master". This is so that it can be tucked after "$GIT_DIR/"
to form a valid pathname for a loose ref, and we normalize a pathname like
"$GIT_DIR/refs///heads/master" to de-dup the slashes in it.

Similarly, when asked if "/refs/heads/master" is valid, check-ref-format
says "Yes, it is Ok", but the leading slash is not removed when printing,
leading to "$GIT_DIR//refs/heads/master".

Fix it to make sure such leading slashes are removed.  Add tests that such
refnames are accepted and normalized correctly.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Michael Haggerty
2011-08-25 21:19:24 +02:00
committed by Junio C Hamano
parent cdb791f61d
commit 2f633f41d6
2 changed files with 9 additions and 3 deletions
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6
builtin/check-ref-format.c
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@ -12,8 +12,8 @@ static const char builtin_check_ref_format_usage[] =
" or: git check-ref-format --branch <branchname-shorthand>";
/*
* Replace each run of adjacent slashes in src with a single slash,
* and write the result to dst.
* Remove leading slashes and replace each run of adjacent slashes in
* src with a single slash, and write the result to dst.
*
* This function is similar to normalize_path_copy(), but stripped down
* to meet check_ref_format's simpler needs.
@ -21,7 +21,7 @@ static const char builtin_check_ref_format_usage[] =
static void collapse_slashes(char *dst, const char *src)
{
char ch;
char prev = '\0';
char prev = '/';
while ((ch = *src++) != '\0') {
if (prev == '/' && ch == prev)