Commit 14de7fba authored by karthik nayak's avatar karthik nayak Committed by Junio C Hamano

for-each-ref: introduce filter_refs()

Introduce filter_refs() which will act as an API for filtering
a set of refs. Based on the type of refs the user has requested,
we iterate through those refs and apply filters as per the
given ref_filter structure and finally store the filtered refs
in the ref_array structure.

Currently this will wrap around ref_filter_handler(). Hence,
ref_filter_handler is made file scope static.

As users of this API will no longer send a ref_filter_cbdata
structure directly, we make the elements of ref_filter_cbdata
pointers. We can now use the information given by the users
to obtain our own ref_filter_cbdata structure. Changes are made to
support the change in ref_filter_cbdata structure.

Make 'for-each-ref' use this API.
Helped-by: default avatarJunio C Hamano <gitster@pobox.com>
Mentored-by: Christian Couder's avatarChristian Couder <christian.couder@gmail.com>
Mentored-by: Matthieu Moy's avatarMatthieu Moy <matthieu.moy@grenoble-inp.fr>
Signed-off-by: karthik nayak's avatarKarthik Nayak <karthik.188@gmail.com>
Reviewed-by: default avatarMatthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: default avatarJunio C Hamano <gitster@pobox.com>
parent c95b7585
......@@ -16,7 +16,8 @@ int cmd_for_each_ref(int argc, const char **argv, const char *prefix)
const char *format = "%(objectname) %(objecttype)\t%(refname)";
struct ref_sorting *sorting = NULL, **sorting_tail = &sorting;
int maxcount = 0, quote_style = 0;
struct ref_filter_cbdata ref_cbdata;
struct ref_array array;
struct ref_filter filter;
struct option opts[] = {
OPT_BIT('s', "shell", &quote_style,
......@@ -54,16 +55,16 @@ int cmd_for_each_ref(int argc, const char **argv, const char *prefix)
/* for warn_ambiguous_refs */
git_config(git_default_config, NULL);
memset(&ref_cbdata, 0, sizeof(ref_cbdata));
ref_cbdata.filter.name_patterns = argv;
for_each_rawref(ref_filter_handler, &ref_cbdata);
memset(&array, 0, sizeof(array));
memset(&filter, 0, sizeof(filter));
filter.name_patterns = argv;
filter_refs(&array, &filter, FILTER_REFS_ALL | FILTER_REFS_INCLUDE_BROKEN);
ref_array_sort(sorting, &array);
ref_array_sort(sorting, &ref_cbdata.array);
if (!maxcount || ref_cbdata.array.nr < maxcount)
maxcount = ref_cbdata.array.nr;
if (!maxcount || array.nr < maxcount)
maxcount = array.nr;
for (i = 0; i < maxcount; i++)
show_ref_array_item(ref_cbdata.array.items[i], format, quote_style);
ref_array_clear(&ref_cbdata.array);
show_ref_array_item(array.items[i], format, quote_style);
ref_array_clear(&array);
return 0;
}
......@@ -859,10 +859,10 @@ static struct ref_array_item *new_ref_array_item(const char *refname,
* A call-back given to for_each_ref(). Filter refs and keep them for
* later object processing.
*/
int ref_filter_handler(const char *refname, const struct object_id *oid, int flag, void *cb_data)
static int ref_filter_handler(const char *refname, const struct object_id *oid, int flag, void *cb_data)
{
struct ref_filter_cbdata *ref_cbdata = cb_data;
struct ref_filter *filter = &ref_cbdata->filter;
struct ref_filter *filter = ref_cbdata->filter;
struct ref_array_item *ref;
if (flag & REF_BAD_NAME) {
......@@ -880,8 +880,8 @@ int ref_filter_handler(const char *refname, const struct object_id *oid, int fla
*/
ref = new_ref_array_item(refname, oid->hash, flag);
REALLOC_ARRAY(ref_cbdata->array.items, ref_cbdata->array.nr + 1);
ref_cbdata->array.items[ref_cbdata->array.nr++] = ref;
REALLOC_ARRAY(ref_cbdata->array->items, ref_cbdata->array->nr + 1);
ref_cbdata->array->items[ref_cbdata->array->nr++] = ref;
return 0;
}
......@@ -905,6 +905,28 @@ void ref_array_clear(struct ref_array *array)
array->nr = array->alloc = 0;
}
/*
* API for filtering a set of refs. Based on the type of refs the user
* has requested, we iterate through those refs and apply filters
* as per the given ref_filter structure and finally store the
* filtered refs in the ref_array structure.
*/
int filter_refs(struct ref_array *array, struct ref_filter *filter, unsigned int type)
{
struct ref_filter_cbdata ref_cbdata;
ref_cbdata.array = array;
ref_cbdata.filter = filter;
if (type & (FILTER_REFS_ALL | FILTER_REFS_INCLUDE_BROKEN))
return for_each_rawref(ref_filter_handler, &ref_cbdata);
else if (type & FILTER_REFS_ALL)
return for_each_ref(ref_filter_handler, &ref_cbdata);
else
die("filter_refs: invalid type");
return 0;
}
static int cmp_ref_sorting(struct ref_sorting *s, struct ref_array_item *a, struct ref_array_item *b)
{
struct atom_value *va, *vb;
......
......@@ -13,6 +13,9 @@
#define QUOTE_PYTHON 4
#define QUOTE_TCL 8
#define FILTER_REFS_INCLUDE_BROKEN 0x1
#define FILTER_REFS_ALL 0x2
struct atom_value {
const char *s;
unsigned long ul; /* used for sorting when not FIELD_STR */
......@@ -42,12 +45,17 @@ struct ref_filter {
};
struct ref_filter_cbdata {
struct ref_array array;
struct ref_filter filter;
struct ref_array *array;
struct ref_filter *filter;
};
/* Callback function for for_each_*ref(). This filters the refs based on the filters set */
int ref_filter_handler(const char *refname, const struct object_id *oid, int flag, void *cb_data);
/*
* API for filtering a set of refs. Based on the type of refs the user
* has requested, we iterate through those refs and apply filters
* as per the given ref_filter structure and finally store the
* filtered refs in the ref_array structure.
*/
int filter_refs(struct ref_array *array, struct ref_filter *filter, unsigned int type);
/* Clear all memory allocated to ref_array */
void ref_array_clear(struct ref_array *array);
/* Parse format string and sort specifiers */
......
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