diff options
Diffstat (limited to 'builtin-reflog.c')
| -rw-r--r-- | builtin-reflog.c | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/builtin-reflog.c b/builtin-reflog.c index ab53c8cb7c..280e24e151 100644 --- a/builtin-reflog.c +++ b/builtin-reflog.c @@ -14,6 +14,8 @@ static const char reflog_expire_usage[] = "git-reflog (show|expire) [--verbose] [--dry-run] [--stale-fix] [--expire=<time>] [--expire-unreachable=<time>] [--all] <refs>..."; +static const char reflog_delete_usage[] = +"git-reflog delete [--verbose] [--dry-run] [--rewrite] [--updateref] <refs>..."; static unsigned long default_reflog_expire; static unsigned long default_reflog_expire_unreachable; @@ -22,9 +24,12 @@ struct cmd_reflog_expire_cb { struct rev_info revs; int dry_run; int stalefix; + int rewrite; + int updateref; int verbose; unsigned long expire_total; unsigned long expire_unreachable; + int recno; }; struct expire_reflog_cb { @@ -32,6 +37,7 @@ struct expire_reflog_cb { const char *ref; struct commit *ref_commit; struct cmd_reflog_expire_cb *cmd; + unsigned char last_kept_sha1[20]; }; struct collected_reflog { @@ -213,6 +219,9 @@ static int expire_reflog_ent(unsigned char *osha1, unsigned char *nsha1, if (timestamp < cb->cmd->expire_total) goto prune; + if (cb->cmd->rewrite) + osha1 = cb->last_kept_sha1; + old = new = NULL; if (cb->cmd->stalefix && (!keep_entry(&old, osha1) || !keep_entry(&new, nsha1))) @@ -230,6 +239,9 @@ static int expire_reflog_ent(unsigned char *osha1, unsigned char *nsha1, goto prune; } + if (cb->cmd->recno && --(cb->cmd->recno) == 0) + goto prune; + if (cb->newlog) { char sign = (tz < 0) ? '-' : '+'; int zone = (tz < 0) ? (-tz) : tz; @@ -237,6 +249,7 @@ static int expire_reflog_ent(unsigned char *osha1, unsigned char *nsha1, sha1_to_hex(osha1), sha1_to_hex(nsha1), email, timestamp, sign, zone, message); + hashcpy(cb->last_kept_sha1, nsha1); } if (cb->cmd->verbose) printf("keep %s", message); @@ -280,10 +293,20 @@ static int expire_reflog(const char *ref, const unsigned char *sha1, int unused, status |= error("%s: %s", strerror(errno), newlog_path); unlink(newlog_path); + } else if (cmd->updateref && + (write_in_full(lock->lock_fd, + sha1_to_hex(cb.last_kept_sha1), 40) != 40 || + write_in_full(lock->lock_fd, "\n", 1) != 1 || + close_ref(lock) < 0)) { + status |= error("Couldn't write %s", + lock->lk->filename); + unlink(newlog_path); } else if (rename(newlog_path, log_file)) { status |= error("cannot rename %s to %s", newlog_path, log_file); unlink(newlog_path); + } else if (cmd->updateref && commit_ref(lock)) { + status |= error("Couldn't set %s", lock->ref_name); } } free(newlog_path); @@ -358,6 +381,10 @@ static int cmd_reflog_expire(int argc, const char **argv, const char *prefix) cb.expire_unreachable = approxidate(arg + 21); else if (!strcmp(arg, "--stale-fix")) cb.stalefix = 1; + else if (!strcmp(arg, "--rewrite")) + cb.rewrite = 1; + else if (!strcmp(arg, "--updateref")) + cb.updateref = 1; else if (!strcmp(arg, "--all")) do_all = 1; else if (!strcmp(arg, "--verbose")) @@ -406,6 +433,78 @@ static int cmd_reflog_expire(int argc, const char **argv, const char *prefix) return status; } +static int count_reflog_ent(unsigned char *osha1, unsigned char *nsha1, + const char *email, unsigned long timestamp, int tz, + const char *message, void *cb_data) +{ + struct cmd_reflog_expire_cb *cb = cb_data; + if (!cb->expire_total || timestamp < cb->expire_total) + cb->recno++; + return 0; +} + +static int cmd_reflog_delete(int argc, const char **argv, const char *prefix) +{ + struct cmd_reflog_expire_cb cb; + int i, status = 0; + + memset(&cb, 0, sizeof(cb)); + + for (i = 1; i < argc; i++) { + const char *arg = argv[i]; + if (!strcmp(arg, "--dry-run") || !strcmp(arg, "-n")) + cb.dry_run = 1; + else if (!strcmp(arg, "--rewrite")) + cb.rewrite = 1; + else if (!strcmp(arg, "--updateref")) + cb.updateref = 1; + else if (!strcmp(arg, "--verbose")) + cb.verbose = 1; + else if (!strcmp(arg, "--")) { + i++; + break; + } + else if (arg[0] == '-') + usage(reflog_delete_usage); + else + break; + } + + if (argc - i < 1) + return error("Nothing to delete?"); + + for ( ; i < argc; i++) { + const char *spec = strstr(argv[i], "@{"); + unsigned char sha1[20]; + char *ep, *ref; + int recno; + + if (!spec) { + status |= error("Not a reflog: %s", argv[i]); + continue; + } + + if (!dwim_ref(argv[i], spec - argv[i], sha1, &ref)) { + status |= error("%s points nowhere!", argv[i]); + continue; + } + + recno = strtoul(spec + 2, &ep, 10); + if (*ep == '}') { + cb.recno = -recno; + for_each_reflog_ent(ref, count_reflog_ent, &cb); + } else { + cb.expire_total = approxidate(spec + 2); + for_each_reflog_ent(ref, count_reflog_ent, &cb); + cb.expire_total = 0; + } + + status |= expire_reflog(ref, sha1, 0, &cb); + free(ref); + } + return status; +} + /* * main "reflog" */ @@ -425,6 +524,9 @@ int cmd_reflog(int argc, const char **argv, const char *prefix) if (!strcmp(argv[1], "expire")) return cmd_reflog_expire(argc - 1, argv + 1, prefix); + if (!strcmp(argv[1], "delete")) + return cmd_reflog_delete(argc - 1, argv + 1, prefix); + /* Not a recognized reflog command..*/ usage(reflog_usage); } |