mirror of
https://github.com/git/git.git
synced 2024-11-25 10:54:00 +08:00
a6080a0a44
This uses "git-apply --whitespace=strip" to fix whitespace errors that have crept in to our source files over time. There are a few files that need to have trailing whitespaces (most notably, test vectors). The results still passes the test, and build result in Documentation/ area is unchanged. Signed-off-by: Junio C Hamano <gitster@pobox.com>
293 lines
6.4 KiB
C
293 lines
6.4 KiB
C
#include "builtin.h"
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#include "cache.h"
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#include "commit.h"
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#include "tag.h"
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#include "refs.h"
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#define CUTOFF_DATE_SLOP 86400 /* one day */
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static const char name_rev_usage[] =
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"git-name-rev [--tags | --refs=<pattern>] ( --all | --stdin | committish [committish...] )\n";
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typedef struct rev_name {
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const char *tip_name;
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int merge_traversals;
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int generation;
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} rev_name;
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static long cutoff = LONG_MAX;
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static void name_rev(struct commit *commit,
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const char *tip_name, int merge_traversals, int generation,
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int deref)
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{
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struct rev_name *name = (struct rev_name *)commit->util;
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struct commit_list *parents;
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int parent_number = 1;
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if (!commit->object.parsed)
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parse_commit(commit);
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if (commit->date < cutoff)
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return;
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if (deref) {
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char *new_name = xmalloc(strlen(tip_name)+3);
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strcpy(new_name, tip_name);
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strcat(new_name, "^0");
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tip_name = new_name;
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if (generation)
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die("generation: %d, but deref?", generation);
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}
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if (name == NULL) {
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name = xmalloc(sizeof(rev_name));
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commit->util = name;
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goto copy_data;
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} else if (name->merge_traversals > merge_traversals ||
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(name->merge_traversals == merge_traversals &&
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name->generation > generation)) {
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copy_data:
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name->tip_name = tip_name;
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name->merge_traversals = merge_traversals;
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name->generation = generation;
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} else
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return;
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for (parents = commit->parents;
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parents;
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parents = parents->next, parent_number++) {
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if (parent_number > 1) {
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int len = strlen(tip_name);
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char *new_name = xmalloc(len +
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1 + decimal_length(generation) + /* ~<n> */
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1 + 2 + /* ^NN */
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1);
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if (len > 2 && !strcmp(tip_name + len - 2, "^0"))
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len -= 2;
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if (generation > 0)
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sprintf(new_name, "%.*s~%d^%d", len, tip_name,
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generation, parent_number);
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else
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sprintf(new_name, "%.*s^%d", len, tip_name,
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parent_number);
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name_rev(parents->item, new_name,
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merge_traversals + 1 , 0, 0);
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} else {
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name_rev(parents->item, tip_name, merge_traversals,
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generation + 1, 0);
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}
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}
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}
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struct name_ref_data {
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int tags_only;
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int name_only;
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const char *ref_filter;
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};
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static int name_ref(const char *path, const unsigned char *sha1, int flags, void *cb_data)
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{
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struct object *o = parse_object(sha1);
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struct name_ref_data *data = cb_data;
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int deref = 0;
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if (data->tags_only && prefixcmp(path, "refs/tags/"))
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return 0;
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if (data->ref_filter && fnmatch(data->ref_filter, path, 0))
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return 0;
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while (o && o->type == OBJ_TAG) {
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struct tag *t = (struct tag *) o;
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if (!t->tagged)
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break; /* broken repository */
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o = parse_object(t->tagged->sha1);
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deref = 1;
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}
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if (o && o->type == OBJ_COMMIT) {
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struct commit *commit = (struct commit *)o;
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if (!prefixcmp(path, "refs/heads/"))
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path = path + 11;
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else if (data->tags_only
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&& data->name_only
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&& !prefixcmp(path, "refs/tags/"))
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path = path + 10;
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else if (!prefixcmp(path, "refs/"))
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path = path + 5;
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name_rev(commit, xstrdup(path), 0, 0, deref);
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}
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return 0;
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}
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/* returns a static buffer */
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static const char* get_rev_name(struct object *o)
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{
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static char buffer[1024];
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struct rev_name *n;
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struct commit *c;
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if (o->type != OBJ_COMMIT)
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return "undefined";
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c = (struct commit *) o;
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n = c->util;
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if (!n)
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return "undefined";
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if (!n->generation)
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return n->tip_name;
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else {
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int len = strlen(n->tip_name);
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if (len > 2 && !strcmp(n->tip_name + len - 2, "^0"))
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len -= 2;
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snprintf(buffer, sizeof(buffer), "%.*s~%d", len, n->tip_name,
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n->generation);
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return buffer;
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}
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}
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int cmd_name_rev(int argc, const char **argv, const char *prefix)
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{
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struct object_array revs = { 0, 0, NULL };
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int as_is = 0, all = 0, transform_stdin = 0;
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struct name_ref_data data = { 0, 0, NULL };
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git_config(git_default_config);
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if (argc < 2)
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usage(name_rev_usage);
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for (--argc, ++argv; argc; --argc, ++argv) {
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unsigned char sha1[20];
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struct object *o;
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struct commit *commit;
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if (!as_is && (*argv)[0] == '-') {
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if (!strcmp(*argv, "--")) {
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as_is = 1;
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continue;
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} else if (!strcmp(*argv, "--name-only")) {
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data.name_only = 1;
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continue;
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} else if (!strcmp(*argv, "--tags")) {
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data.tags_only = 1;
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continue;
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} else if (!prefixcmp(*argv, "--refs=")) {
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data.ref_filter = *argv + 7;
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continue;
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} else if (!strcmp(*argv, "--all")) {
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if (argc > 1)
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die("Specify either a list, or --all, not both!");
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all = 1;
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cutoff = 0;
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continue;
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} else if (!strcmp(*argv, "--stdin")) {
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if (argc > 1)
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die("Specify either a list, or --stdin, not both!");
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transform_stdin = 1;
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cutoff = 0;
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continue;
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}
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usage(name_rev_usage);
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}
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if (get_sha1(*argv, sha1)) {
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fprintf(stderr, "Could not get sha1 for %s. Skipping.\n",
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*argv);
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continue;
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}
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o = deref_tag(parse_object(sha1), *argv, 0);
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if (!o || o->type != OBJ_COMMIT) {
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fprintf(stderr, "Could not get commit for %s. Skipping.\n",
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*argv);
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continue;
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}
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commit = (struct commit *)o;
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if (cutoff > commit->date)
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cutoff = commit->date;
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add_object_array((struct object *)commit, *argv, &revs);
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}
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if (cutoff)
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cutoff = cutoff - CUTOFF_DATE_SLOP;
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for_each_ref(name_ref, &data);
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if (transform_stdin) {
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char buffer[2048];
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char *p, *p_start;
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while (!feof(stdin)) {
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int forty = 0;
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p = fgets(buffer, sizeof(buffer), stdin);
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if (!p)
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break;
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for (p_start = p; *p; p++) {
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#define ishex(x) (isdigit((x)) || ((x) >= 'a' && (x) <= 'f'))
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if (!ishex(*p))
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forty = 0;
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else if (++forty == 40 &&
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!ishex(*(p+1))) {
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unsigned char sha1[40];
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const char *name = "undefined";
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char c = *(p+1);
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forty = 0;
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*(p+1) = 0;
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if (!get_sha1(p - 39, sha1)) {
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struct object *o =
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lookup_object(sha1);
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if (o)
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name = get_rev_name(o);
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}
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*(p+1) = c;
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if (!strcmp(name, "undefined"))
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continue;
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fwrite(p_start, p - p_start + 1, 1,
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stdout);
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printf(" (%s)", name);
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p_start = p + 1;
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}
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}
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/* flush */
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if (p_start != p)
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fwrite(p_start, p - p_start, 1, stdout);
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}
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} else if (all) {
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int i, max;
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max = get_max_object_index();
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for (i = 0; i < max; i++) {
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struct object * obj = get_indexed_object(i);
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if (!obj)
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continue;
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if (!data.name_only)
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printf("%s ", sha1_to_hex(obj->sha1));
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printf("%s\n", get_rev_name(obj));
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}
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} else {
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int i;
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for (i = 0; i < revs.nr; i++) {
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if (!data.name_only)
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printf("%s ", revs.objects[i].name);
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printf("%s\n", get_rev_name(revs.objects[i].item));
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}
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}
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return 0;
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}
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