2007-07-20 03:42:28 +04:00
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/*
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* Builtin "git tag"
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*
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* Copyright (c) 2007 Kristian Høgsberg <krh@redhat.com>,
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* Carlos Rica <jasampler@gmail.com>
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* Based on git-tag.sh and mktag.c by Linus Torvalds.
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*/
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#include "cache.h"
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#include "builtin.h"
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#include "refs.h"
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#include "tag.h"
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#include "run-command.h"
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2007-11-09 16:42:56 +03:00
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#include "parse-options.h"
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static const char * const git_tag_usage[] = {
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"git-tag [-a|-s|-u <key-id>] [-f] [-m <msg>|-F <file>] <tagname> [<head>]",
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"git-tag -d <tagname>...",
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2007-12-21 13:50:58 +03:00
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"git-tag -l [-n [<num>]] [<pattern>]",
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2007-11-09 16:42:56 +03:00
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"git-tag -v <tagname>...",
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NULL
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};
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2007-07-20 03:42:28 +04:00
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static char signingkey[1000];
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2007-11-26 11:59:27 +03:00
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void launch_editor(const char *path, struct strbuf *buffer, const char *const *env)
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2007-07-20 03:42:28 +04:00
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{
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const char *editor, *terminal;
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2007-07-20 16:06:09 +04:00
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editor = getenv("GIT_EDITOR");
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if (!editor && editor_program)
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editor = editor_program;
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if (!editor)
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editor = getenv("VISUAL");
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2007-07-20 03:42:28 +04:00
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if (!editor)
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editor = getenv("EDITOR");
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terminal = getenv("TERM");
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if (!editor && (!terminal || !strcmp(terminal, "dumb"))) {
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fprintf(stderr,
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"Terminal is dumb but no VISUAL nor EDITOR defined.\n"
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"Please supply the message using either -m or -F option.\n");
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exit(1);
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}
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if (!editor)
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editor = "vi";
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2007-11-08 17:06:52 +03:00
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if (strcmp(editor, ":")) {
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2007-12-22 20:45:10 +03:00
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size_t len = strlen(editor);
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int i = 0;
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const char *args[6];
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if (strcspn(editor, "$ \t'") != len) {
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/* there are specials */
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args[i++] = "sh";
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args[i++] = "-c";
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args[i++] = "$0 \"$@\"";
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}
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args[i++] = editor;
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args[i++] = path;
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args[i] = NULL;
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2007-07-20 03:42:28 +04:00
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2007-11-26 11:59:27 +03:00
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if (run_command_v_opt_cd_env(args, 0, NULL, env))
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2007-11-08 17:06:52 +03:00
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die("There was a problem with the editor %s.", editor);
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}
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2007-07-20 03:42:28 +04:00
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2007-12-09 10:23:20 +03:00
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if (!buffer)
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return;
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2007-09-27 17:25:55 +04:00
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if (strbuf_read_file(buffer, path, 0) < 0)
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2007-09-18 04:06:46 +04:00
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die("could not read message file '%s': %s",
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path, strerror(errno));
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2007-07-20 03:42:28 +04:00
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}
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struct tag_filter {
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const char *pattern;
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int lines;
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};
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#define PGP_SIGNATURE "-----BEGIN PGP SIGNATURE-----"
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static int show_reference(const char *refname, const unsigned char *sha1,
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int flag, void *cb_data)
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{
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struct tag_filter *filter = cb_data;
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if (!fnmatch(filter->pattern, refname, 0)) {
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int i;
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unsigned long size;
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enum object_type type;
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char *buf, *sp, *eol;
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size_t len;
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if (!filter->lines) {
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printf("%s\n", refname);
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return 0;
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}
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printf("%-15s ", refname);
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2007-11-03 16:08:05 +03:00
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buf = read_sha1_file(sha1, &type, &size);
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if (!buf || !size)
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2007-07-20 03:42:28 +04:00
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return 0;
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2007-11-03 16:08:05 +03:00
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/* skip header */
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sp = strstr(buf, "\n\n");
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if (!sp) {
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2007-07-21 16:13:12 +04:00
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free(buf);
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return 0;
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}
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2007-07-20 03:42:28 +04:00
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/* only take up to "lines" lines, and strip the signature */
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2007-07-21 16:13:12 +04:00
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for (i = 0, sp += 2;
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i < filter->lines && sp < buf + size &&
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2007-07-20 03:42:28 +04:00
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prefixcmp(sp, PGP_SIGNATURE "\n");
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i++) {
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if (i)
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printf("\n ");
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eol = memchr(sp, '\n', size - (sp - buf));
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len = eol ? eol - sp : size - (sp - buf);
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fwrite(sp, len, 1, stdout);
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if (!eol)
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break;
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sp = eol + 1;
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}
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putchar('\n');
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free(buf);
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}
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return 0;
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}
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static int list_tags(const char *pattern, int lines)
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{
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struct tag_filter filter;
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if (pattern == NULL)
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2007-09-01 09:10:09 +04:00
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pattern = "*";
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2007-07-20 03:42:28 +04:00
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2007-09-01 09:10:09 +04:00
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filter.pattern = pattern;
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2007-07-20 03:42:28 +04:00
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filter.lines = lines;
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for_each_tag_ref(show_reference, (void *) &filter);
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return 0;
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}
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2007-07-21 16:13:12 +04:00
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typedef int (*each_tag_name_fn)(const char *name, const char *ref,
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2007-07-20 03:42:28 +04:00
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const unsigned char *sha1);
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2007-07-21 16:13:12 +04:00
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static int for_each_tag_name(const char **argv, each_tag_name_fn fn)
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2007-07-20 03:42:28 +04:00
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{
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const char **p;
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char ref[PATH_MAX];
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int had_error = 0;
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unsigned char sha1[20];
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for (p = argv; *p; p++) {
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if (snprintf(ref, sizeof(ref), "refs/tags/%s", *p)
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>= sizeof(ref)) {
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error("tag name too long: %.*s...", 50, *p);
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had_error = 1;
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continue;
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}
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if (!resolve_ref(ref, sha1, 1, NULL)) {
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error("tag '%s' not found.", *p);
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had_error = 1;
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continue;
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}
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if (fn(*p, ref, sha1))
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had_error = 1;
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}
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return had_error;
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}
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static int delete_tag(const char *name, const char *ref,
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const unsigned char *sha1)
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{
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if (delete_ref(ref, sha1))
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return 1;
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printf("Deleted tag '%s'\n", name);
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return 0;
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}
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static int verify_tag(const char *name, const char *ref,
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const unsigned char *sha1)
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{
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const char *argv_verify_tag[] = {"git-verify-tag",
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"-v", "SHA1_HEX", NULL};
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argv_verify_tag[2] = sha1_to_hex(sha1);
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if (run_command_v_opt(argv_verify_tag, 0))
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return error("could not verify the tag '%s'", name);
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return 0;
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}
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2007-09-10 14:35:09 +04:00
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static int do_sign(struct strbuf *buffer)
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2007-07-20 03:42:28 +04:00
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{
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struct child_process gpg;
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const char *args[4];
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char *bracket;
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int len;
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if (!*signingkey) {
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2007-12-09 04:32:08 +03:00
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if (strlcpy(signingkey, git_committer_info(IDENT_ERROR_ON_NO_NAME),
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2007-07-21 16:13:12 +04:00
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sizeof(signingkey)) > sizeof(signingkey) - 1)
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2007-07-20 03:42:28 +04:00
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return error("committer info too long.");
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bracket = strchr(signingkey, '>');
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if (bracket)
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bracket[1] = '\0';
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}
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2007-09-09 04:39:29 +04:00
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/* When the username signingkey is bad, program could be terminated
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* because gpg exits without reading and then write gets SIGPIPE. */
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signal(SIGPIPE, SIG_IGN);
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2007-07-20 03:42:28 +04:00
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memset(&gpg, 0, sizeof(gpg));
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gpg.argv = args;
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gpg.in = -1;
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gpg.out = -1;
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args[0] = "gpg";
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args[1] = "-bsau";
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args[2] = signingkey;
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args[3] = NULL;
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if (start_command(&gpg))
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return error("could not run gpg.");
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2007-09-10 14:35:09 +04:00
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if (write_in_full(gpg.in, buffer->buf, buffer->len) != buffer->len) {
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2007-09-09 04:39:29 +04:00
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close(gpg.in);
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2008-02-16 20:36:38 +03:00
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close(gpg.out);
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2007-09-09 04:39:29 +04:00
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finish_command(&gpg);
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return error("gpg did not accept the tag data");
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}
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2007-07-20 03:42:28 +04:00
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close(gpg.in);
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2007-09-10 14:35:09 +04:00
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len = strbuf_read(buffer, gpg.out, 1024);
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2008-02-16 20:36:38 +03:00
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close(gpg.out);
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2007-07-20 03:42:28 +04:00
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2007-09-09 04:39:29 +04:00
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if (finish_command(&gpg) || !len || len < 0)
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return error("gpg failed to sign the tag");
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2007-07-20 03:42:28 +04:00
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2007-09-10 14:35:09 +04:00
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return 0;
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2007-07-20 03:42:28 +04:00
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}
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static const char tag_template[] =
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"\n"
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"#\n"
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"# Write a tag message\n"
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"#\n";
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2007-12-11 07:08:06 +03:00
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static void set_signingkey(const char *value)
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{
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if (strlcpy(signingkey, value, sizeof(signingkey)) >= sizeof(signingkey))
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die("signing key value too long (%.10s...)", value);
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}
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2007-07-20 03:42:28 +04:00
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static int git_tag_config(const char *var, const char *value)
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{
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if (!strcmp(var, "user.signingkey")) {
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if (!value)
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2008-02-11 21:51:31 +03:00
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return config_error_nonbool(value);
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2007-12-11 07:08:06 +03:00
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set_signingkey(value);
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2007-07-20 03:42:28 +04:00
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return 0;
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}
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return git_default_config(var, value);
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}
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2007-11-04 03:11:14 +03:00
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static void write_tag_body(int fd, const unsigned char *sha1)
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{
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unsigned long size;
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enum object_type type;
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char *buf, *sp, *eob;
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size_t len;
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buf = read_sha1_file(sha1, &type, &size);
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if (!buf)
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return;
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/* skip header */
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sp = strstr(buf, "\n\n");
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if (!sp || !size || type != OBJ_TAG) {
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free(buf);
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return;
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}
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sp += 2; /* skip the 2 LFs */
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eob = strstr(sp, "\n" PGP_SIGNATURE "\n");
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if (eob)
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len = eob - sp;
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else
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len = buf + size - sp;
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write_or_die(fd, sp, len);
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free(buf);
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}
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2007-07-20 03:42:28 +04:00
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static void create_tag(const unsigned char *object, const char *tag,
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2007-09-10 14:35:09 +04:00
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struct strbuf *buf, int message, int sign,
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2007-11-23 10:16:51 +03:00
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unsigned char *prev, unsigned char *result)
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2007-07-20 03:42:28 +04:00
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{
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enum object_type type;
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2007-09-10 14:35:09 +04:00
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char header_buf[1024];
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int header_len;
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2007-07-20 03:42:28 +04:00
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type = sha1_object_info(object, NULL);
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2007-07-21 16:13:12 +04:00
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if (type <= OBJ_NONE)
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2007-07-20 03:42:28 +04:00
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die("bad object type.");
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header_len = snprintf(header_buf, sizeof(header_buf),
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"object %s\n"
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"type %s\n"
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|
|
"tag %s\n"
|
|
|
|
|
"tagger %s\n\n",
|
|
|
|
|
sha1_to_hex(object),
|
|
|
|
|
typename(type),
|
|
|
|
|
tag,
|
2007-12-09 04:32:08 +03:00
|
|
|
git_committer_info(IDENT_ERROR_ON_NO_NAME));
|
2007-07-20 03:42:28 +04:00
|
|
|
|
2007-07-21 16:13:12 +04:00
|
|
|
if (header_len > sizeof(header_buf) - 1)
|
2007-07-20 03:42:28 +04:00
|
|
|
die("tag header too big.");
|
|
|
|
|
|
|
|
|
|
if (!message) {
|
|
|
|
|
char *path;
|
|
|
|
|
int fd;
|
|
|
|
|
|
|
|
|
|
/* write the template message before editing: */
|
|
|
|
|
path = xstrdup(git_path("TAG_EDITMSG"));
|
|
|
|
|
fd = open(path, O_CREAT | O_TRUNC | O_WRONLY, 0600);
|
|
|
|
|
if (fd < 0)
|
|
|
|
|
die("could not create file '%s': %s",
|
|
|
|
|
path, strerror(errno));
|
2007-11-04 03:11:14 +03:00
|
|
|
|
|
|
|
|
if (!is_null_sha1(prev))
|
|
|
|
|
write_tag_body(fd, prev);
|
|
|
|
|
else
|
|
|
|
|
write_or_die(fd, tag_template, strlen(tag_template));
|
2007-07-20 03:42:28 +04:00
|
|
|
close(fd);
|
|
|
|
|
|
2007-11-26 11:59:27 +03:00
|
|
|
launch_editor(path, buf, NULL);
|
2007-07-20 03:42:28 +04:00
|
|
|
|
|
|
|
|
unlink(path);
|
|
|
|
|
free(path);
|
|
|
|
|
}
|
|
|
|
|
|
2007-09-18 04:06:45 +04:00
|
|
|
stripspace(buf, 1);
|
2007-07-20 03:42:28 +04:00
|
|
|
|
2007-09-10 14:35:09 +04:00
|
|
|
if (!message && !buf->len)
|
2007-07-20 03:42:28 +04:00
|
|
|
die("no tag message?");
|
|
|
|
|
|
2007-09-10 14:35:09 +04:00
|
|
|
strbuf_insert(buf, 0, header_buf, header_len);
|
2007-07-20 03:42:28 +04:00
|
|
|
|
2007-09-10 14:35:09 +04:00
|
|
|
if (sign && do_sign(buf) < 0)
|
|
|
|
|
die("unable to sign the tag");
|
|
|
|
|
if (write_sha1_file(buf->buf, buf->len, tag_type, result) < 0)
|
2007-07-20 03:42:28 +04:00
|
|
|
die("unable to write tag file");
|
|
|
|
|
}
|
|
|
|
|
|
2007-11-23 10:16:51 +03:00
|
|
|
struct msg_arg {
|
|
|
|
|
int given;
|
|
|
|
|
struct strbuf buf;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
static int parse_msg_arg(const struct option *opt, const char *arg, int unset)
|
|
|
|
|
{
|
|
|
|
|
struct msg_arg *msg = opt->value;
|
|
|
|
|
|
|
|
|
|
if (!arg)
|
|
|
|
|
return -1;
|
|
|
|
|
if (msg->buf.len)
|
|
|
|
|
strbuf_addstr(&(msg->buf), "\n\n");
|
|
|
|
|
strbuf_addstr(&(msg->buf), arg);
|
|
|
|
|
msg->given = 1;
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
2007-07-20 03:42:28 +04:00
|
|
|
int cmd_tag(int argc, const char **argv, const char *prefix)
|
|
|
|
|
{
|
2007-09-10 14:35:09 +04:00
|
|
|
struct strbuf buf;
|
2007-07-20 03:42:28 +04:00
|
|
|
unsigned char object[20], prev[20];
|
|
|
|
|
char ref[PATH_MAX];
|
|
|
|
|
const char *object_ref, *tag;
|
|
|
|
|
struct ref_lock *lock;
|
|
|
|
|
|
2007-11-09 16:42:56 +03:00
|
|
|
int annotate = 0, sign = 0, force = 0, lines = 0,
|
2007-12-21 13:50:58 +03:00
|
|
|
list = 0, delete = 0, verify = 0;
|
|
|
|
|
char *msgfile = NULL, *keyid = NULL;
|
2007-11-23 10:16:51 +03:00
|
|
|
struct msg_arg msg = { 0, STRBUF_INIT };
|
2007-11-09 16:42:56 +03:00
|
|
|
struct option options[] = {
|
2007-12-21 13:50:58 +03:00
|
|
|
OPT_BOOLEAN('l', NULL, &list, "list tag names"),
|
2007-11-09 16:42:56 +03:00
|
|
|
{ OPTION_INTEGER, 'n', NULL, &lines, NULL,
|
|
|
|
|
"print n lines of each tag message",
|
|
|
|
|
PARSE_OPT_OPTARG, NULL, 1 },
|
|
|
|
|
OPT_BOOLEAN('d', NULL, &delete, "delete tags"),
|
|
|
|
|
OPT_BOOLEAN('v', NULL, &verify, "verify tags"),
|
|
|
|
|
|
|
|
|
|
OPT_GROUP("Tag creation options"),
|
|
|
|
|
OPT_BOOLEAN('a', NULL, &annotate,
|
|
|
|
|
"annotated tag, needs a message"),
|
2007-11-23 10:16:51 +03:00
|
|
|
OPT_CALLBACK('m', NULL, &msg, "msg",
|
|
|
|
|
"message for the tag", parse_msg_arg),
|
2007-11-09 16:42:56 +03:00
|
|
|
OPT_STRING('F', NULL, &msgfile, "file", "message in a file"),
|
|
|
|
|
OPT_BOOLEAN('s', NULL, &sign, "annotated and GPG-signed tag"),
|
|
|
|
|
OPT_STRING('u', NULL, &keyid, "key-id",
|
|
|
|
|
"use another key to sign the tag"),
|
|
|
|
|
OPT_BOOLEAN('f', NULL, &force, "replace the tag if exists"),
|
|
|
|
|
OPT_END()
|
|
|
|
|
};
|
|
|
|
|
|
2007-07-20 03:42:28 +04:00
|
|
|
git_config(git_tag_config);
|
|
|
|
|
|
2007-11-09 16:42:56 +03:00
|
|
|
argc = parse_options(argc, argv, options, git_tag_usage, 0);
|
2007-07-20 03:42:28 +04:00
|
|
|
|
2007-12-11 07:08:06 +03:00
|
|
|
if (keyid) {
|
|
|
|
|
sign = 1;
|
|
|
|
|
set_signingkey(keyid);
|
|
|
|
|
}
|
2007-11-26 02:21:42 +03:00
|
|
|
if (sign)
|
|
|
|
|
annotate = 1;
|
|
|
|
|
|
2007-11-09 16:42:56 +03:00
|
|
|
if (list)
|
2007-12-21 13:50:58 +03:00
|
|
|
return list_tags(argv[0], lines);
|
2007-11-09 16:42:56 +03:00
|
|
|
if (delete)
|
|
|
|
|
return for_each_tag_name(argv, delete_tag);
|
|
|
|
|
if (verify)
|
|
|
|
|
return for_each_tag_name(argv, verify_tag);
|
|
|
|
|
|
|
|
|
|
strbuf_init(&buf, 0);
|
2007-11-23 10:16:51 +03:00
|
|
|
if (msg.given || msgfile) {
|
|
|
|
|
if (msg.given && msgfile)
|
2007-11-09 16:42:56 +03:00
|
|
|
die("only one -F or -m option is allowed.");
|
|
|
|
|
annotate = 1;
|
2007-11-23 10:16:51 +03:00
|
|
|
if (msg.given)
|
|
|
|
|
strbuf_addbuf(&buf, &(msg.buf));
|
2007-11-09 16:42:56 +03:00
|
|
|
else {
|
|
|
|
|
if (!strcmp(msgfile, "-")) {
|
2007-09-27 17:25:55 +04:00
|
|
|
if (strbuf_read(&buf, 0, 1024) < 0)
|
2007-11-09 16:42:56 +03:00
|
|
|
die("cannot read %s", msgfile);
|
2007-09-27 17:25:55 +04:00
|
|
|
} else {
|
2007-11-09 16:42:56 +03:00
|
|
|
if (strbuf_read_file(&buf, msgfile, 1024) < 0)
|
2007-09-27 17:25:55 +04:00
|
|
|
die("could not open or read '%s': %s",
|
2007-11-09 16:42:56 +03:00
|
|
|
msgfile, strerror(errno));
|
2007-07-20 03:42:28 +04:00
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2007-11-09 16:42:56 +03:00
|
|
|
if (argc == 0) {
|
2007-07-20 03:42:28 +04:00
|
|
|
if (annotate)
|
2007-11-09 16:42:56 +03:00
|
|
|
usage_with_options(git_tag_usage, options);
|
2007-07-20 03:42:28 +04:00
|
|
|
return list_tags(NULL, lines);
|
|
|
|
|
}
|
2007-11-09 16:42:56 +03:00
|
|
|
tag = argv[0];
|
2007-07-20 03:42:28 +04:00
|
|
|
|
2007-11-09 16:42:56 +03:00
|
|
|
object_ref = argc == 2 ? argv[1] : "HEAD";
|
|
|
|
|
if (argc > 2)
|
2007-07-20 03:42:28 +04:00
|
|
|
die("too many params");
|
|
|
|
|
|
|
|
|
|
if (get_sha1(object_ref, object))
|
|
|
|
|
die("Failed to resolve '%s' as a valid ref.", object_ref);
|
|
|
|
|
|
2007-07-21 16:13:12 +04:00
|
|
|
if (snprintf(ref, sizeof(ref), "refs/tags/%s", tag) > sizeof(ref) - 1)
|
2007-07-20 03:42:28 +04:00
|
|
|
die("tag name too long: %.*s...", 50, tag);
|
|
|
|
|
if (check_ref_format(ref))
|
|
|
|
|
die("'%s' is not a valid tag name.", tag);
|
|
|
|
|
|
|
|
|
|
if (!resolve_ref(ref, prev, 1, NULL))
|
|
|
|
|
hashclr(prev);
|
|
|
|
|
else if (!force)
|
|
|
|
|
die("tag '%s' already exists", tag);
|
|
|
|
|
|
|
|
|
|
if (annotate)
|
2007-11-23 10:16:51 +03:00
|
|
|
create_tag(object, tag, &buf, msg.given || msgfile,
|
|
|
|
|
sign, prev, object);
|
2007-07-20 03:42:28 +04:00
|
|
|
|
|
|
|
|
lock = lock_any_ref_for_update(ref, prev, 0);
|
|
|
|
|
if (!lock)
|
|
|
|
|
die("%s: cannot lock the ref", ref);
|
|
|
|
|
if (write_ref_sha1(lock, object, NULL) < 0)
|
|
|
|
|
die("%s: cannot update the ref", ref);
|
|
|
|
|
|
2007-09-10 14:35:09 +04:00
|
|
|
strbuf_release(&buf);
|
2007-07-20 03:42:28 +04:00
|
|
|
return 0;
|
|
|
|
|
}
|
