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authorJunio C Hamano <gitster@pobox.com>2013-09-20 12:38:10 -0700
committerJunio C Hamano <gitster@pobox.com>2013-09-20 12:38:10 -0700
commitf406140baa5128bfa537c271c7292a866c08b7d4 (patch)
treec52ee64bfc197e86ee928f8e40056f46ab0f7be9 /sha1_name.c
parent005a1de380733477382c50e2e44ed8042c401fed (diff)
parent9ba89f484e023827eca6ad44baf69af37dac4db3 (diff)
downloadgit-f406140baa5128bfa537c271c7292a866c08b7d4.tar.gz
Merge branch 'fc/at-head'
Instead of typing four capital letters "HEAD", you can say "@" now, e.g. "git log @". * fc/at-head: Add new @ shortcut for HEAD sha1-name: pass len argument to interpret_branch_name()
Diffstat (limited to 'sha1_name.c')
-rw-r--r--sha1_name.c38
1 files changed, 34 insertions, 4 deletions
diff --git a/sha1_name.c b/sha1_name.c
index 78c093f79e..0e5fe7f937 100644
--- a/sha1_name.c
+++ b/sha1_name.c
@@ -1006,6 +1006,28 @@ int get_sha1_mb(const char *name, unsigned char *sha1)
return st;
}
+/* parse @something syntax, when 'something' is not {.*} */
+static int interpret_empty_at(const char *name, int namelen, int len, struct strbuf *buf)
+{
+ const char *next;
+
+ if (len || name[1] == '{')
+ return -1;
+
+ /* make sure it's a single @, or @@{.*}, not @foo */
+ next = strchr(name + len + 1, '@');
+ if (next && next[1] != '{')
+ return -1;
+ if (!next)
+ next = name + namelen;
+ if (next != name + 1)
+ return -1;
+
+ strbuf_reset(buf);
+ strbuf_add(buf, "HEAD", 4);
+ return 1;
+}
+
static int reinterpret(const char *name, int namelen, int len, struct strbuf *buf)
{
/* we have extra data, which might need further processing */
@@ -1014,7 +1036,7 @@ 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);
@@ -1048,14 +1070,16 @@ 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) {
@@ -1068,9 +1092,15 @@ int interpret_branch_name(const char *name, struct strbuf *buf)
cp = strchr(name, '@');
if (!cp)
return -1;
+
+ len = interpret_empty_at(name, namelen, cp - name, buf);
+ if (len > 0)
+ return reinterpret(name, namelen, len, buf);
+
tmp_len = upstream_mark(cp, namelen - (cp - name));
if (!tmp_len)
return -1;
+
len = cp + tmp_len - name;
cp = xstrndup(name, cp - name);
upstream = branch_get(*cp ? cp : NULL);
@@ -1102,7 +1132,7 @@ 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;