diff options
Diffstat (limited to 'builtin/gc.c')
| -rw-r--r-- | builtin/gc.c | 149 |
1 files changed, 113 insertions, 36 deletions
diff --git a/builtin/gc.c b/builtin/gc.c index 5c634afc00..c583aad6ec 100644 --- a/builtin/gc.c +++ b/builtin/gc.c @@ -11,6 +11,7 @@ */ #include "builtin.h" +#include "tempfile.h" #include "lockfile.h" #include "parse-options.h" #include "run-command.h" @@ -33,24 +34,63 @@ static int gc_auto_threshold = 6700; static int gc_auto_pack_limit = 50; static int detach_auto = 1; static const char *prune_expire = "2.weeks.ago"; +static const char *prune_worktrees_expire = "3.months.ago"; static struct argv_array pack_refs_cmd = ARGV_ARRAY_INIT; static struct argv_array reflog = ARGV_ARRAY_INIT; static struct argv_array repack = ARGV_ARRAY_INIT; static struct argv_array prune = ARGV_ARRAY_INIT; +static struct argv_array prune_worktrees = ARGV_ARRAY_INIT; static struct argv_array rerere = ARGV_ARRAY_INIT; -static char *pidfile; +static struct tempfile pidfile; +static struct lock_file log_lock; -static void remove_pidfile(void) +static struct string_list pack_garbage = STRING_LIST_INIT_DUP; + +static void clean_pack_garbage(void) { - if (pidfile) - unlink(pidfile); + int i; + for (i = 0; i < pack_garbage.nr; i++) + unlink_or_warn(pack_garbage.items[i].string); + string_list_clear(&pack_garbage, 0); } -static void remove_pidfile_on_signal(int signo) +static void report_pack_garbage(unsigned seen_bits, const char *path) { - remove_pidfile(); + if (seen_bits == PACKDIR_FILE_IDX) + string_list_append(&pack_garbage, path); +} + +static void git_config_date_string(const char *key, const char **output) +{ + if (git_config_get_string_const(key, output)) + return; + if (strcmp(*output, "now")) { + unsigned long now = approxidate("now"); + if (approxidate(*output) >= now) + git_die_config(key, _("Invalid %s: '%s'"), key, *output); + } +} + +static void process_log_file(void) +{ + struct stat st; + if (!fstat(get_lock_file_fd(&log_lock), &st) && st.st_size) + commit_lock_file(&log_lock); + else + rollback_lock_file(&log_lock); +} + +static void process_log_file_at_exit(void) +{ + fflush(stderr); + process_log_file(); +} + +static void process_log_file_on_signal(int signo) +{ + process_log_file(); sigchain_pop(signo); raise(signo); } @@ -71,16 +111,8 @@ static void gc_config(void) git_config_get_int("gc.auto", &gc_auto_threshold); git_config_get_int("gc.autopacklimit", &gc_auto_pack_limit); git_config_get_bool("gc.autodetach", &detach_auto); - - if (!git_config_get_string_const("gc.pruneexpire", &prune_expire)) { - if (strcmp(prune_expire, "now")) { - unsigned long now = approxidate("now"); - if (approxidate(prune_expire) >= now) { - git_die_config("gc.pruneexpire", _("Invalid gc.pruneexpire: '%s'"), - prune_expire); - } - } - } + git_config_date_string("gc.pruneexpire", &prune_expire); + git_config_date_string("gc.worktreepruneexpire", &prune_worktrees_expire); git_config(git_default_config, NULL); } @@ -194,20 +226,22 @@ static const char *lock_repo_for_gc(int force, pid_t* ret_pid) uintmax_t pid; FILE *fp; int fd; + char *pidfile_path; - if (pidfile) + if (is_tempfile_active(&pidfile)) /* already locked */ return NULL; if (gethostname(my_host, sizeof(my_host))) - strcpy(my_host, "unknown"); + xsnprintf(my_host, sizeof(my_host), "unknown"); - fd = hold_lock_file_for_update(&lock, git_path("gc.pid"), + pidfile_path = git_pathdup("gc.pid"); + fd = hold_lock_file_for_update(&lock, pidfile_path, LOCK_DIE_ON_ERROR); if (!force) { static char locking_host[128]; int should_exit; - fp = fopen(git_path("gc.pid"), "r"); + fp = fopen(pidfile_path, "r"); memset(locking_host, 0, sizeof(locking_host)); should_exit = fp != NULL && @@ -222,7 +256,7 @@ static const char *lock_repo_for_gc(int force, pid_t* ret_pid) * running. */ time(NULL) - st.st_mtime <= 12 * 3600 && - fscanf(fp, "%"PRIuMAX" %127c", &pid, locking_host) == 2 && + fscanf(fp, "%"SCNuMAX" %127c", &pid, locking_host) == 2 && /* be gentle to concurrent "gc" on remote hosts */ (strcmp(locking_host, my_host) || !kill(pid, 0) || errno == EPERM); if (fp != NULL) @@ -231,6 +265,7 @@ static const char *lock_repo_for_gc(int force, pid_t* ret_pid) if (fd >= 0) rollback_lock_file(&lock); *ret_pid = pid; + free(pidfile_path); return locking_host; } } @@ -240,14 +275,29 @@ static const char *lock_repo_for_gc(int force, pid_t* ret_pid) write_in_full(fd, sb.buf, sb.len); strbuf_release(&sb); commit_lock_file(&lock); - - pidfile = git_pathdup("gc.pid"); - sigchain_push_common(remove_pidfile_on_signal); - atexit(remove_pidfile); - + register_tempfile(&pidfile, pidfile_path); + free(pidfile_path); return NULL; } +static int report_last_gc_error(void) +{ + struct strbuf sb = STRBUF_INIT; + int ret; + + ret = strbuf_read_file(&sb, git_path("gc.log"), 0); + if (ret > 0) + return error(_("The last gc run reported the following. " + "Please correct the root cause\n" + "and remove %s.\n" + "Automatic cleanup will not be performed " + "until the file is removed.\n\n" + "%s"), + git_path("gc.log"), sb.buf); + strbuf_release(&sb); + return 0; +} + static int gc_before_repack(void) { if (pack_refs && run_command_v_opt(pack_refs_cmd.argv, RUN_GIT_CMD)) @@ -269,6 +319,7 @@ int cmd_gc(int argc, const char **argv, const char *prefix) int force = 0; const char *name; pid_t pid; + int daemonized = 0; struct option builtin_gc_options[] = { OPT__QUIET(&quiet, N_("suppress progress reporting")), @@ -287,7 +338,8 @@ int cmd_gc(int argc, const char **argv, const char *prefix) argv_array_pushl(&pack_refs_cmd, "pack-refs", "--all", "--prune", NULL); argv_array_pushl(&reflog, "reflog", "expire", "--all", NULL); argv_array_pushl(&repack, "repack", "-d", "-l", NULL); - argv_array_pushl(&prune, "prune", "--expire", NULL ); + argv_array_pushl(&prune, "prune", "--expire", NULL); + argv_array_pushl(&prune_worktrees, "worktree", "prune", "--expire", NULL); argv_array_pushl(&rerere, "rerere", "gc", NULL); gc_config(); @@ -324,13 +376,16 @@ int cmd_gc(int argc, const char **argv, const char *prefix) fprintf(stderr, _("See \"git help gc\" for manual housekeeping.\n")); } if (detach_auto) { + if (report_last_gc_error()) + return -1; + if (gc_before_repack()) return -1; /* * failure to daemonize is ok, we'll continue * in foreground */ - daemonize(); + daemonized = !daemonize(); } } else add_repack_all_option(); @@ -343,23 +398,45 @@ int cmd_gc(int argc, const char **argv, const char *prefix) name, (uintmax_t)pid); } + if (daemonized) { + hold_lock_file_for_update(&log_lock, + git_path("gc.log"), + LOCK_DIE_ON_ERROR); + dup2(get_lock_file_fd(&log_lock), 2); + sigchain_push_common(process_log_file_on_signal); + atexit(process_log_file_at_exit); + } + if (gc_before_repack()) return -1; - if (run_command_v_opt(repack.argv, RUN_GIT_CMD)) - return error(FAILED_RUN, repack.argv[0]); + if (!repository_format_precious_objects) { + if (run_command_v_opt(repack.argv, RUN_GIT_CMD)) + return error(FAILED_RUN, repack.argv[0]); - if (prune_expire) { - argv_array_push(&prune, prune_expire); - if (quiet) - argv_array_push(&prune, "--no-progress"); - if (run_command_v_opt(prune.argv, RUN_GIT_CMD)) - return error(FAILED_RUN, prune.argv[0]); + if (prune_expire) { + argv_array_push(&prune, prune_expire); + if (quiet) + argv_array_push(&prune, "--no-progress"); + if (run_command_v_opt(prune.argv, RUN_GIT_CMD)) + return error(FAILED_RUN, prune.argv[0]); + } + } + + if (prune_worktrees_expire) { + argv_array_push(&prune_worktrees, prune_worktrees_expire); + if (run_command_v_opt(prune_worktrees.argv, RUN_GIT_CMD)) + return error(FAILED_RUN, prune_worktrees.argv[0]); } if (run_command_v_opt(rerere.argv, RUN_GIT_CMD)) return error(FAILED_RUN, rerere.argv[0]); + report_garbage = report_pack_garbage; + reprepare_packed_git(); + if (pack_garbage.nr > 0) + clean_pack_garbage(); + if (auto_gc && too_many_loose_objects()) warning(_("There are too many unreachable loose objects; " "run 'git prune' to remove them.")); |