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ref-filter: implement '--merged' and '--no-merged' options

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In 'branch -l' we have '--merged' option which only lists refs (branches)
merged into the named commit and '--no-merged' option which only lists
refs (branches) not merged into the named commit. Implement these two
options in ref-filter.{c,h} so that other commands can benefit from this.

Based-on-patch-by: Jeff King <peff@peff.net>
Mentored-by: Christian Couder <christian.couder@gmail.com>
Mentored-by: Matthieu Moy <matthieu.moy@grenoble-inp.fr>
Signed-off-by: Karthik Nayak <karthik.188@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Karthik Nayak 2015-07-07 21:36:12 +05:30 committed by Junio C Hamano
parent 5afcb90560
commit 35257aa012
3 changed files with 81 additions and 4 deletions
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4
builtin/branch.c
View File

@ -635,6 +635,10 @@ static int print_ref_list(int kinds, int detached, int verbose, int abbrev, stru
cb.pattern = pattern;
cb.ret = 0;
for_each_rawref(append_ref, &cb);
/*
* The following implementation is currently duplicated in ref-filter. It
* will eventually be removed when we port branch.c to use ref-filter APIs.
*/
if (merge_filter != NO_FILTER) {
struct commit *filter;
filter = lookup_commit_reference_gently(merge_filter_ref, 0);

73
ref-filter.c
View File

@ -9,6 +9,7 @@
#include "tag.h"
#include "quote.h"
#include "ref-filter.h"
#include "revision.h"
typedef enum { FIELD_STR, FIELD_ULONG, FIELD_TIME } cmp_type;
@ -898,6 +899,7 @@ static int ref_filter_handler(const char *refname, const struct object_id *oid,
struct ref_filter_cbdata *ref_cbdata = cb_data;
struct ref_filter *filter = ref_cbdata->filter;
struct ref_array_item *ref;
struct commit *commit = NULL;
if (flag & REF_BAD_NAME) {
warning("ignoring ref with broken name %s", refname);
@ -910,12 +912,24 @@ static int ref_filter_handler(const char *refname, const struct object_id *oid,
if (filter->points_at.nr && !match_points_at(&filter->points_at, oid->hash, refname))
return 0;
/*
* A merge filter is applied on refs pointing to commits. Hence
* obtain the commit using the 'oid' available and discard all
* non-commits early. The actual filtering is done later.
*/
if (filter->merge_commit) {
commit = lookup_commit_reference_gently(oid->hash, 1);
if (!commit)
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 = new_ref_array_item(refname, oid->hash, flag);
ref->commit = commit;
REALLOC_ARRAY(ref_cbdata->array->items, ref_cbdata->array->nr + 1);
ref_cbdata->array->items[ref_cbdata->array->nr++] = ref;
@ -941,6 +955,50 @@ void ref_array_clear(struct ref_array *array)
array->nr = array->alloc = 0;
}
static void do_merge_filter(struct ref_filter_cbdata *ref_cbdata)
{
struct rev_info revs;
int i, old_nr;
struct ref_filter *filter = ref_cbdata->filter;
struct ref_array *array = ref_cbdata->array;
struct commit **to_clear = xcalloc(sizeof(struct commit *), array->nr);
init_revisions(&revs, NULL);
for (i = 0; i < array->nr; i++) {
struct ref_array_item *item = array->items[i];
add_pending_object(&revs, &item->commit->object, item->refname);
to_clear[i] = item->commit;
}
filter->merge_commit->object.flags |= UNINTERESTING;
add_pending_object(&revs, &filter->merge_commit->object, "");
revs.limited = 1;
if (prepare_revision_walk(&revs))
die(_("revision walk setup failed"));
old_nr = array->nr;
array->nr = 0;
for (i = 0; i < old_nr; i++) {
struct ref_array_item *item = array->items[i];
struct commit *commit = item->commit;
int is_merged = !!(commit->object.flags & UNINTERESTING);
if (is_merged == (filter->merge == REF_FILTER_MERGED_INCLUDE))
array->items[array->nr++] = array->items[i];
else
free_array_item(item);
}
for (i = 0; i < old_nr; i++)
clear_commit_marks(to_clear[i], ALL_REV_FLAGS);
clear_commit_marks(filter->merge_commit, ALL_REV_FLAGS);
free(to_clear);
}
/*
* 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
@ -950,17 +1008,24 @@ void ref_array_clear(struct ref_array *array)
int filter_refs(struct ref_array *array, struct ref_filter *filter, unsigned int type)
{
struct ref_filter_cbdata ref_cbdata;
int ret = 0;
ref_cbdata.array = array;
ref_cbdata.filter = filter;
/* Simple per-ref filtering */
if (type & (FILTER_REFS_ALL | FILTER_REFS_INCLUDE_BROKEN))
return for_each_rawref(ref_filter_handler, &ref_cbdata);
ret = for_each_rawref(ref_filter_handler, &ref_cbdata);
else if (type & FILTER_REFS_ALL)
return for_each_ref(ref_filter_handler, &ref_cbdata);
else
ret = for_each_ref(ref_filter_handler, &ref_cbdata);
else if (type)
die("filter_refs: invalid type");
return 0;
/* Filters that need revision walking */
if (filter->merge_commit)
do_merge_filter(&ref_cbdata);
return ret;
}
static int cmp_ref_sorting(struct ref_sorting *s, struct ref_array_item *a, struct ref_array_item *b)

8
ref-filter.h
View File

@ -31,6 +31,7 @@ struct ref_array_item {
unsigned char objectname[20];
int flag;
const char *symref;
struct commit *commit;
struct atom_value *value;
char refname[FLEX_ARRAY];
};
@ -43,6 +44,13 @@ struct ref_array {
struct ref_filter {
const char **name_patterns;
struct sha1_array points_at;
enum {
REF_FILTER_MERGED_NONE = 0,
REF_FILTER_MERGED_INCLUDE,
REF_FILTER_MERGED_OMIT
} merge;
struct commit *merge_commit;
};
struct ref_filter_cbdata {