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-rw-r--r--builtin-name-rev.c298
1 files changed, 0 insertions, 298 deletions
diff --git a/builtin-name-rev.c b/builtin-name-rev.c
deleted file mode 100644
index f153da012f..0000000000
--- a/builtin-name-rev.c
+++ /dev/null
@@ -1,298 +0,0 @@
-#include "builtin.h"
-#include "cache.h"
-#include "commit.h"
-#include "tag.h"
-#include "refs.h"
-#include "parse-options.h"
-
-#define CUTOFF_DATE_SLOP 86400 /* one day */
-
-typedef struct rev_name {
- const char *tip_name;
- int generation;
- int distance;
-} rev_name;
-
-static long cutoff = LONG_MAX;
-
-/* How many generations are maximally preferred over _one_ merge traversal? */
-#define MERGE_TRAVERSAL_WEIGHT 65535
-
-static void name_rev(struct commit *commit,
- const char *tip_name, int generation, int distance,
- int deref)
-{
- struct rev_name *name = (struct rev_name *)commit->util;
- struct commit_list *parents;
- int parent_number = 1;
-
- if (!commit->object.parsed)
- parse_commit(commit);
-
- if (commit->date < cutoff)
- return;
-
- if (deref) {
- char *new_name = xmalloc(strlen(tip_name)+3);
- strcpy(new_name, tip_name);
- strcat(new_name, "^0");
- tip_name = new_name;
-
- if (generation)
- die("generation: %d, but deref?", generation);
- }
-
- if (name == NULL) {
- name = xmalloc(sizeof(rev_name));
- commit->util = name;
- goto copy_data;
- } else if (name->distance > distance) {
-copy_data:
- name->tip_name = tip_name;
- name->generation = generation;
- name->distance = distance;
- } else
- return;
-
- for (parents = commit->parents;
- parents;
- parents = parents->next, parent_number++) {
- if (parent_number > 1) {
- int len = strlen(tip_name);
- char *new_name = xmalloc(len +
- 1 + decimal_length(generation) + /* ~<n> */
- 1 + 2 + /* ^NN */
- 1);
-
- if (len > 2 && !strcmp(tip_name + len - 2, "^0"))
- len -= 2;
- if (generation > 0)
- sprintf(new_name, "%.*s~%d^%d", len, tip_name,
- generation, parent_number);
- else
- sprintf(new_name, "%.*s^%d", len, tip_name,
- parent_number);
-
- name_rev(parents->item, new_name, 0,
- distance + MERGE_TRAVERSAL_WEIGHT, 0);
- } else {
- name_rev(parents->item, tip_name, generation + 1,
- distance + 1, 0);
- }
- }
-}
-
-struct name_ref_data {
- int tags_only;
- int name_only;
- const char *ref_filter;
-};
-
-static int name_ref(const char *path, const unsigned char *sha1, int flags, void *cb_data)
-{
- struct object *o = parse_object(sha1);
- struct name_ref_data *data = cb_data;
- int deref = 0;
-
- if (data->tags_only && prefixcmp(path, "refs/tags/"))
- return 0;
-
- if (data->ref_filter && fnmatch(data->ref_filter, path, 0))
- return 0;
-
- while (o && o->type == OBJ_TAG) {
- struct tag *t = (struct tag *) o;
- if (!t->tagged)
- break; /* broken repository */
- o = parse_object(t->tagged->sha1);
- deref = 1;
- }
- if (o && o->type == OBJ_COMMIT) {
- struct commit *commit = (struct commit *)o;
-
- if (!prefixcmp(path, "refs/heads/"))
- path = path + 11;
- else if (data->tags_only
- && data->name_only
- && !prefixcmp(path, "refs/tags/"))
- path = path + 10;
- else if (!prefixcmp(path, "refs/"))
- path = path + 5;
-
- name_rev(commit, xstrdup(path), 0, 0, deref);
- }
- return 0;
-}
-
-/* returns a static buffer */
-static const char *get_rev_name(const struct object *o)
-{
- static char buffer[1024];
- struct rev_name *n;
- struct commit *c;
-
- if (o->type != OBJ_COMMIT)
- return NULL;
- c = (struct commit *) o;
- n = c->util;
- if (!n)
- return NULL;
-
- if (!n->generation)
- return n->tip_name;
- else {
- int len = strlen(n->tip_name);
- if (len > 2 && !strcmp(n->tip_name + len - 2, "^0"))
- len -= 2;
- snprintf(buffer, sizeof(buffer), "%.*s~%d", len, n->tip_name,
- n->generation);
-
- return buffer;
- }
-}
-
-static void show_name(const struct object *obj,
- const char *caller_name,
- int always, int allow_undefined, int name_only)
-{
- const char *name;
- const unsigned char *sha1 = obj->sha1;
-
- if (!name_only)
- printf("%s ", caller_name ? caller_name : sha1_to_hex(sha1));
- name = get_rev_name(obj);
- if (name)
- printf("%s\n", name);
- else if (allow_undefined)
- printf("undefined\n");
- else if (always)
- printf("%s\n", find_unique_abbrev(sha1, DEFAULT_ABBREV));
- else
- die("cannot describe '%s'", sha1_to_hex(sha1));
-}
-
-static char const * const name_rev_usage[] = {
- "git-name-rev [options] ( --all | --stdin | <commit>... )",
- NULL
-};
-
-int cmd_name_rev(int argc, const char **argv, const char *prefix)
-{
- struct object_array revs = { 0, 0, NULL };
- int all = 0, transform_stdin = 0, allow_undefined = 1, always = 0;
- struct name_ref_data data = { 0, 0, NULL };
- struct option opts[] = {
- OPT_BOOLEAN(0, "name-only", &data.name_only, "print only names (no SHA-1)"),
- OPT_BOOLEAN(0, "tags", &data.tags_only, "only use tags to name the commits"),
- OPT_STRING(0, "refs", &data.ref_filter, "pattern",
- "only use refs matching <pattern>"),
- OPT_GROUP(""),
- OPT_BOOLEAN(0, "all", &all, "list all commits reachable from all refs"),
- OPT_BOOLEAN(0, "stdin", &transform_stdin, "read from stdin"),
- OPT_BOOLEAN(0, "undefined", &allow_undefined, "allow to print `undefined` names"),
- OPT_BOOLEAN(0, "always", &always,
- "show abbreviated commit object as fallback"),
- OPT_END(),
- };
-
- git_config(git_default_config, NULL);
- argc = parse_options(argc, argv, opts, name_rev_usage, 0);
- if (!!all + !!transform_stdin + !!argc > 1) {
- error("Specify either a list, or --all, not both!");
- usage_with_options(name_rev_usage, opts);
- }
- if (all || transform_stdin)
- cutoff = 0;
-
- for (; argc; argc--, argv++) {
- unsigned char sha1[20];
- struct object *o;
- struct commit *commit;
-
- if (get_sha1(*argv, sha1)) {
- fprintf(stderr, "Could not get sha1 for %s. Skipping.\n",
- *argv);
- continue;
- }
-
- o = deref_tag(parse_object(sha1), *argv, 0);
- if (!o || o->type != OBJ_COMMIT) {
- fprintf(stderr, "Could not get commit for %s. Skipping.\n",
- *argv);
- continue;
- }
-
- commit = (struct commit *)o;
- if (cutoff > commit->date)
- cutoff = commit->date;
- add_object_array((struct object *)commit, *argv, &revs);
- }
-
- if (cutoff)
- cutoff = cutoff - CUTOFF_DATE_SLOP;
- for_each_ref(name_ref, &data);
-
- if (transform_stdin) {
- char buffer[2048];
- char *p, *p_start;
-
- while (!feof(stdin)) {
- int forty = 0;
- p = fgets(buffer, sizeof(buffer), stdin);
- if (!p)
- break;
-
- for (p_start = p; *p; p++) {
-#define ishex(x) (isdigit((x)) || ((x) >= 'a' && (x) <= 'f'))
- if (!ishex(*p))
- forty = 0;
- else if (++forty == 40 &&
- !ishex(*(p+1))) {
- unsigned char sha1[40];
- const char *name = NULL;
- char c = *(p+1);
-
- forty = 0;
-
- *(p+1) = 0;
- if (!get_sha1(p - 39, sha1)) {
- struct object *o =
- lookup_object(sha1);
- if (o)
- name = get_rev_name(o);
- }
- *(p+1) = c;
-
- if (!name)
- continue;
-
- fwrite(p_start, p - p_start + 1, 1, stdout);
- printf(" (%s)", name);
- p_start = p + 1;
- }
- }
-
- /* flush */
- if (p_start != p)
- fwrite(p_start, p - p_start, 1, stdout);
- }
- } else if (all) {
- int i, max;
-
- max = get_max_object_index();
- for (i = 0; i < max; i++) {
- struct object *obj = get_indexed_object(i);
- if (!obj)
- continue;
- show_name(obj, NULL,
- always, allow_undefined, data.name_only);
- }
- } else {
- int i;
- for (i = 0; i < revs.nr; i++)
- show_name(revs.objects[i].item, revs.objects[i].name,
- always, allow_undefined, data.name_only);
- }
-
- return 0;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-17 22:38:19 +0000