Extract two helper functions out of grab_single_ref(). Firstly,
new_refinfo() which is used to allocate memory for a new refinfo
structure and copy the objectname, refname and flag to it.
Secondly, match_name_as_path() which when given an array of patterns
and the refname checks if the refname matches any of the patterns
given while the pattern is a pathname, also supports wildcard
characters.
This is a preperatory patch for restructuring 'for-each-ref' and
eventually moving most of it to 'ref-filter' to provide the
functionality to similar commands via public API's.
Helped-by: Junio C Hamano <gits...@pobox.com>
Mentored-by: Christian Couder <christian.cou...@gmail.com>
Mentored-by: Matthieu Moy <matthieu....@grenoble-inp.fr>
Signed-off-by: Karthik Nayak <karthik....@gmail.com>
---
builtin/for-each-ref.c | 64 ++++++++++++++++++++++++++++++++------------------
1 file changed, 41 insertions(+), 23 deletions(-)
diff --git a/builtin/for-each-ref.c b/builtin/for-each-ref.c
index f7e51a7..67c8b62 100644
--- a/builtin/for-each-ref.c
+++ b/builtin/for-each-ref.c
@@ -851,6 +851,44 @@ struct grab_ref_cbdata {
};
/*
+ * Return 1 if the refname matches with one of the patterns,
+ * otherwise 0. The patterns can be literal prefix (e.g. a
+ * refname "refs/heads/master" matches a pattern "refs/heads/")
+ * or a wildcard (e.g. the same ref matches "refs/heads/m*",too).
+ */
+static int match_name_as_path(const char **pattern, const char *refname)
+{
+ int namelen = strlen(refname);
+ for (; *pattern; pattern++) {
+ const char *p = *pattern;
+ int plen = strlen(p);
+
+ if ((plen <= namelen) &&
+ !strncmp(refname, p, plen) &&
+ (refname[plen] == '\0' ||
+ refname[plen] == '/' ||
+ p[plen-1] == '/'))
+ return 1;
+ if (!wildmatch(p, refname, WM_PATHNAME, NULL))
+ return 1;
+ }
+ return 0;
+}
+
+/* Allocate space for a new refinfo and copy the objectname and flag to it */
+static struct refinfo *new_refinfo(const char *refname,
+ const unsigned char *objectname,
+ int flag)
+{
+ struct refinfo *ref = xcalloc(1, sizeof(struct refinfo));
+ ref->refname = xstrdup(refname);
+ hashcpy(ref->objectname, objectname);
+ ref->flag = flag;
+
+ return ref;
+}
+
+/*
* A call-back given to for_each_ref(). Filter refs and keep them for
* later object processing.
*/
@@ -866,35 +904,15 @@ static int grab_single_ref(const char *refname, const
struct object_id *oid,
return 0;
}
- if (*cb->grab_pattern) {
- const char **pattern;
- int namelen = strlen(refname);
- for (pattern = cb->grab_pattern; *pattern; pattern++) {
- const char *p = *pattern;
- int plen = strlen(p);
-
- if ((plen <= namelen) &&
- !strncmp(refname, p, plen) &&
- (refname[plen] == '\0' ||
- refname[plen] == '/' ||
- p[plen-1] == '/'))
- break;
- if (!wildmatch(p, refname, WM_PATHNAME, NULL))
- break;
- }
- if (!*pattern)
- return 0;
- }
+ if (*cb->grab_pattern && !match_name_as_path(cb->grab_pattern, refname))
+ return 0;
/*
* We do not open the object yet; sort may only need refname
* to do its job and the resulting list may yet to be pruned
* by maxcount logic.
*/
- ref = xcalloc(1, sizeof(*ref));
- ref->refname = xstrdup(refname);
- hashcpy(ref->objectname, oid->hash);
- ref->flag = flag;
+ ref = new_refinfo(refname, oid->hash, flag);
cnt = cb->grab_cnt;
REALLOC_ARRAY(cb->grab_array, cnt + 1);
--
2.4.2
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