* [PATCH v11 10/13] tag.c: use 'ref-filter' data structures
@ 2015-08-15 18:00 Karthik Nayak
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From: Karthik Nayak @ 2015-08-15 18:00 UTC (permalink / raw)
To: git; +Cc: christian.couder, Matthieu.Moy, gitster, Karthik Nayak
From: Karthik Nayak <karthik.188@gmail.com>
Make 'tag.c' use 'ref-filter' data structures and make changes to
support the new data structures. This is a part of the process
of porting 'tag.c' to use 'ref-filter' APIs.
This is a temporary step before porting 'tag.c' to use 'ref-filter'
completely. As this is a temporary step, most of the code
introduced here will be removed when 'tag.c' is ported over to use
'ref-filter' APIs
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>
---
builtin/tag.c | 106 +++++++++++++++++++++++++++++++---------------------------
1 file changed, 57 insertions(+), 49 deletions(-)
diff --git a/builtin/tag.c b/builtin/tag.c
index 0fc7557..e96bae2 100644
--- a/builtin/tag.c
+++ b/builtin/tag.c
@@ -17,6 +17,7 @@
#include "gpg-interface.h"
#include "sha1-array.h"
#include "column.h"
+#include "ref-filter.h"
static const char * const git_tag_usage[] = {
N_("git tag [-a | -s | -u <key-id>] [-f] [-m <msg> | -F <file>] <tagname> [<head>]"),
@@ -34,15 +35,6 @@ static const char * const git_tag_usage[] = {
static int tag_sort;
-struct tag_filter {
- const char **patterns;
- int lines;
- int sort;
- struct string_list tags;
- struct commit_list *with_commit;
-};
-
-static struct sha1_array points_at;
static unsigned int colopts;
static int match_pattern(const char **patterns, const char *ref)
@@ -61,19 +53,20 @@ static int match_pattern(const char **patterns, const char *ref)
* removed as we port tag.c to use the ref-filter APIs.
*/
static const unsigned char *match_points_at(const char *refname,
- const unsigned char *sha1)
+ const unsigned char *sha1,
+ struct sha1_array *points_at)
{
const unsigned char *tagged_sha1 = NULL;
struct object *obj;
- if (sha1_array_lookup(&points_at, sha1) >= 0)
+ if (sha1_array_lookup(points_at, sha1) >= 0)
return sha1;
obj = parse_object(sha1);
if (!obj)
die(_("malformed object at '%s'"), refname);
if (obj->type == OBJ_TAG)
tagged_sha1 = ((struct tag *)obj)->tagged->sha1;
- if (tagged_sha1 && sha1_array_lookup(&points_at, tagged_sha1) >= 0)
+ if (tagged_sha1 && sha1_array_lookup(points_at, tagged_sha1) >= 0)
return tagged_sha1;
return NULL;
}
@@ -228,12 +221,24 @@ free_return:
free(buf);
}
+static void ref_array_append(struct ref_array *array, const char *refname)
+{
+ size_t len = strlen(refname);
+ struct ref_array_item *ref = xcalloc(1, sizeof(struct ref_array_item) + len + 1);
+ memcpy(ref->refname, refname, len);
+ ref->refname[len] = '\0';
+ REALLOC_ARRAY(array->items, array->nr + 1);
+ array->items[array->nr++] = ref;
+}
+
static int show_reference(const char *refname, const struct object_id *oid,
int flag, void *cb_data)
{
- struct tag_filter *filter = cb_data;
+ struct ref_filter_cbdata *data = cb_data;
+ struct ref_array *array = data->array;
+ struct ref_filter *filter = data->filter;
- if (match_pattern(filter->patterns, refname)) {
+ if (match_pattern(filter->name_patterns, refname)) {
if (filter->with_commit) {
struct commit *commit;
@@ -244,12 +249,12 @@ static int show_reference(const char *refname, const struct object_id *oid,
return 0;
}
- if (points_at.nr && !match_points_at(refname, oid->hash))
+ if (filter->points_at.nr && !match_points_at(refname, oid->hash, &filter->points_at))
return 0;
if (!filter->lines) {
- if (filter->sort)
- string_list_append(&filter->tags, refname);
+ if (tag_sort)
+ ref_array_append(array, refname);
else
printf("%s\n", refname);
return 0;
@@ -264,36 +269,36 @@ static int show_reference(const char *refname, const struct object_id *oid,
static int sort_by_version(const void *a_, const void *b_)
{
- const struct string_list_item *a = a_;
- const struct string_list_item *b = b_;
- return versioncmp(a->string, b->string);
+ const struct ref_array_item *a = *((struct ref_array_item **)a_);
+ const struct ref_array_item *b = *((struct ref_array_item **)b_);
+ return versioncmp(a->refname, b->refname);
}
-static int list_tags(const char **patterns, int lines,
- struct commit_list *with_commit, int sort)
+static int list_tags(struct ref_filter *filter, int sort)
{
- struct tag_filter filter;
+ struct ref_array array;
+ struct ref_filter_cbdata data;
+
+ memset(&array, 0, sizeof(array));
+ data.array = &array;
+ data.filter = filter;
- filter.patterns = patterns;
- filter.lines = lines;
- filter.sort = sort;
- filter.with_commit = with_commit;
- memset(&filter.tags, 0, sizeof(filter.tags));
- filter.tags.strdup_strings = 1;
+ if (filter->lines == -1)
+ filter->lines = 0;
- for_each_tag_ref(show_reference, (void *)&filter);
+ for_each_tag_ref(show_reference, &data);
if (sort) {
int i;
if ((sort & SORT_MASK) == VERCMP_SORT)
- qsort(filter.tags.items, filter.tags.nr,
- sizeof(struct string_list_item), sort_by_version);
+ qsort(array.items, array.nr,
+ sizeof(struct ref_array_item *), sort_by_version);
if (sort & REVERSE_SORT)
- for (i = filter.tags.nr - 1; i >= 0; i--)
- printf("%s\n", filter.tags.items[i].string);
+ for (i = array.nr - 1; i >= 0; i--)
+ printf("%s\n", array.items[i]->refname);
else
- for (i = 0; i < filter.tags.nr; i++)
- printf("%s\n", filter.tags.items[i].string);
- string_list_clear(&filter.tags, 0);
+ for (i = 0; i < array.nr; i++)
+ printf("%s\n", array.items[i]->refname);
+ ref_array_clear(&array);
}
return 0;
}
@@ -574,17 +579,17 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
const char *object_ref, *tag;
struct create_tag_options opt;
char *cleanup_arg = NULL;
- int annotate = 0, force = 0, lines = -1;
int create_reflog = 0;
+ int annotate = 0, force = 0;
int cmdmode = 0;
const char *msgfile = NULL, *keyid = NULL;
struct msg_arg msg = { 0, STRBUF_INIT };
- struct commit_list *with_commit = NULL;
struct ref_transaction *transaction;
struct strbuf err = STRBUF_INIT;
+ struct ref_filter filter;
struct option options[] = {
OPT_CMDMODE('l', "list", &cmdmode, N_("list tag names"), 'l'),
- { OPTION_INTEGER, 'n', NULL, &lines, N_("n"),
+ { OPTION_INTEGER, 'n', NULL, &filter.lines, N_("n"),
N_("print <n> lines of each tag message"),
PARSE_OPT_OPTARG, NULL, 1 },
OPT_CMDMODE('d', "delete", &cmdmode, N_("delete tags"), 'd'),
@@ -606,14 +611,14 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
OPT_GROUP(N_("Tag listing options")),
OPT_COLUMN(0, "column", &colopts, N_("show tag list in columns")),
- OPT_CONTAINS(&with_commit, N_("print only tags that contain the commit")),
- OPT_WITH(&with_commit, N_("print only tags that contain the commit")),
+ OPT_CONTAINS(&filter.with_commit, N_("print only tags that contain the commit")),
+ OPT_WITH(&filter.with_commit, N_("print only tags that contain the commit")),
{
OPTION_CALLBACK, 0, "sort", &tag_sort, N_("type"), N_("sort tags"),
PARSE_OPT_NONEG, parse_opt_sort
},
{
- OPTION_CALLBACK, 0, "points-at", &points_at, N_("object"),
+ OPTION_CALLBACK, 0, "points-at", &filter.points_at, N_("object"),
N_("print only tags of the object"), 0, parse_opt_object_name
},
OPT_END()
@@ -622,6 +627,8 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
git_config(git_tag_config, NULL);
memset(&opt, 0, sizeof(opt));
+ memset(&filter, 0, sizeof(filter));
+ filter.lines = -1;
argc = parse_options(argc, argv, prefix, options, git_tag_usage, 0);
@@ -638,7 +645,7 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
usage_with_options(git_tag_usage, options);
finalize_colopts(&colopts, -1);
- if (cmdmode == 'l' && lines != -1) {
+ if (cmdmode == 'l' && filter.lines != -1) {
if (explicitly_enable_column(colopts))
die(_("--column and -n are incompatible"));
colopts = 0;
@@ -651,18 +658,19 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
copts.padding = 2;
run_column_filter(colopts, &copts);
}
- if (lines != -1 && tag_sort)
+ if (filter.lines != -1 && tag_sort)
die(_("--sort and -n are incompatible"));
- ret = list_tags(argv, lines == -1 ? 0 : lines, with_commit, tag_sort);
+ filter.name_patterns = argv;
+ ret = list_tags(&filter, tag_sort);
if (column_active(colopts))
stop_column_filter();
return ret;
}
- if (lines != -1)
+ if (filter.lines != -1)
die(_("-n option is only allowed with -l."));
- if (with_commit)
+ if (filter.with_commit)
die(_("--contains option is only allowed with -l."));
- if (points_at.nr)
+ if (filter.points_at.nr)
die(_("--points-at option is only allowed with -l."));
if (cmdmode == 'd')
return for_each_tag_name(argv, delete_tag);
--
2.5.0
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