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sha1-name: pass len argument to interpret_branch_name() 

This is useful to make sure we don't step outside the boundaries of what
we are interpreting at the moment. For example while interpreting
foobar@{u}~1, the job of interpret_branch_name() ends right before ~1,
but there's no way to figure that out inside the function, unless the
len argument is passed.

So let's do that.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
maint
Felipe Contreras 2013-09-02 01:34:29 -05:00 committed by Junio C Hamano
parent e230c568c4
commit cf99a761d3
4 changed files with 9 additions and 7 deletions
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2
cache.h
View File

@ -893,7 +893,7 @@ extern char *resolve_refdup(const char *ref, unsigned char *sha1, int reading, i

extern int dwim_ref(const char *str, int len, unsigned char *sha1, char **ref);
extern int dwim_log(const char *str, int len, unsigned char *sha1, char **ref);
extern int interpret_branch_name(const char *str, struct strbuf *);
extern int interpret_branch_name(const char *str, int len, struct strbuf *);
extern int get_sha1_mb(const char *str, unsigned char *sha1);

extern int refname_match(const char *abbrev_name, const char *full_name, const char **rules);

2
refs.c
View File

@ -1951,7 +1951,7 @@ static int remove_empty_directories(const char *file)
static char *substitute_branch_name(const char **string, int *len)
{
struct strbuf buf = STRBUF_INIT;
int ret = interpret_branch_name(*string, &buf);
int ret = interpret_branch_name(*string, *len, &buf);

if (ret == *len) {
size_t size;

2
revision.c
View File

@ -200,7 +200,7 @@ static void add_pending_object_with_mode(struct rev_info *revs,
revs->no_walk = 0;
if (revs->reflog_info && obj->type == OBJ_COMMIT) {
struct strbuf buf = STRBUF_INIT;
int len = interpret_branch_name(name, &buf);
int len = interpret_branch_name(name, 0, &buf);
int st;

if (0 < len && name[len] && buf.len)

10
sha1_name.c
View File

@ -1012,7 +1012,7 @@ static int reinterpret(const char *name, int namelen, int len, struct strbuf *bu
int ret;

strbuf_add(buf, name + len, namelen - len);
ret = interpret_branch_name(buf->buf, &tmp);
ret = interpret_branch_name(buf->buf, buf->len, &tmp);
/* that data was not interpreted, remove our cruft */
if (ret < 0) {
strbuf_setlen(buf, used);
@ -1046,14 +1046,16 @@ static int reinterpret(const char *name, int namelen, int len, struct strbuf *bu
* If the input was ok but there are not N branch switches in the
* reflog, it returns 0.
*/
int interpret_branch_name(const char *name, struct strbuf *buf)
int interpret_branch_name(const char *name, int namelen, struct strbuf *buf)
{
char *cp;
struct branch *upstream;
int namelen = strlen(name);
int len = interpret_nth_prior_checkout(name, buf);
int tmp_len;

if (!namelen)
namelen = strlen(name);

if (!len) {
return len; /* syntax Ok, not enough switches */
} else if (len > 0) {
@ -1100,7 +1102,7 @@ int interpret_branch_name(const char *name, struct strbuf *buf)
int strbuf_branchname(struct strbuf *sb, const char *name)
{
int len = strlen(name);
int used = interpret_branch_name(name, sb);
int used = interpret_branch_name(name, len, sb);

if (used == len)
return 0;