diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-02-22 19:42:18 +0300 |
---|---|---|
committer | Junio C Hamano <gitster@pobox.com> | 2010-02-23 01:29:41 +0300 |
commit | 81b50f3ce40bfdd66e5d967bf82be001039a9a98 (patch) | |
tree | 7e86bb81e83c9fad73dcbdaa0ef33038137b4274 /builtin-gc.c | |
parent | 241b9254e1c8ff071d8054f8b6fbe1883b389d69 (diff) |
Move 'builtin-*' into a 'builtin/' subdirectory
This shrinks the top-level directory a bit, and makes it much more
pleasant to use auto-completion on the thing. Instead of
[torvalds@nehalem git]$ em buil<tab>
Display all 180 possibilities? (y or n)
[torvalds@nehalem git]$ em builtin-sh
builtin-shortlog.c builtin-show-branch.c builtin-show-ref.c
builtin-shortlog.o builtin-show-branch.o builtin-show-ref.o
[torvalds@nehalem git]$ em builtin-shor<tab>
builtin-shortlog.c builtin-shortlog.o
[torvalds@nehalem git]$ em builtin-shortlog.c
you get
[torvalds@nehalem git]$ em buil<tab> [type]
builtin/ builtin.h
[torvalds@nehalem git]$ em builtin [auto-completes to]
[torvalds@nehalem git]$ em builtin/sh<tab> [type]
shortlog.c shortlog.o show-branch.c show-branch.o show-ref.c show-ref.o
[torvalds@nehalem git]$ em builtin/sho [auto-completes to]
[torvalds@nehalem git]$ em builtin/shor<tab> [type]
shortlog.c shortlog.o
[torvalds@nehalem git]$ em builtin/shortlog.c
which doesn't seem all that different, but not having that annoying
break in "Display all 180 possibilities?" is quite a relief.
NOTE! If you do this in a clean tree (no object files etc), or using an
editor that has auto-completion rules that ignores '*.o' files, you
won't see that annoying 'Display all 180 possibilities?' message - it
will just show the choices instead. I think bash has some cut-off
around 100 choices or something.
So the reason I see this is that I'm using an odd editory, and thus
don't have the rules to cut down on auto-completion. But you can
simulate that by using 'ls' instead, or something similar.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'builtin-gc.c')
-rw-r--r-- | builtin-gc.c | 255 |
1 files changed, 0 insertions, 255 deletions
diff --git a/builtin-gc.c b/builtin-gc.c deleted file mode 100644 index c304638b78..0000000000 --- a/builtin-gc.c +++ /dev/null @@ -1,255 +0,0 @@ -/* - * git gc builtin command - * - * Cleanup unreachable files and optimize the repository. - * - * Copyright (c) 2007 James Bowes - * - * Based on git-gc.sh, which is - * - * Copyright (c) 2006 Shawn O. Pearce - */ - -#include "builtin.h" -#include "cache.h" -#include "parse-options.h" -#include "run-command.h" - -#define FAILED_RUN "failed to run %s" - -static const char * const builtin_gc_usage[] = { - "git gc [options]", - NULL -}; - -static int pack_refs = 1; -static int aggressive_window = 250; -static int gc_auto_threshold = 6700; -static int gc_auto_pack_limit = 50; -static const char *prune_expire = "2.weeks.ago"; - -#define MAX_ADD 10 -static const char *argv_pack_refs[] = {"pack-refs", "--all", "--prune", NULL}; -static const char *argv_reflog[] = {"reflog", "expire", "--all", NULL}; -static const char *argv_repack[MAX_ADD] = {"repack", "-d", "-l", NULL}; -static const char *argv_prune[] = {"prune", "--expire", NULL, NULL}; -static const char *argv_rerere[] = {"rerere", "gc", NULL}; - -static int gc_config(const char *var, const char *value, void *cb) -{ - if (!strcmp(var, "gc.packrefs")) { - if (value && !strcmp(value, "notbare")) - pack_refs = -1; - else - pack_refs = git_config_bool(var, value); - return 0; - } - if (!strcmp(var, "gc.aggressivewindow")) { - aggressive_window = git_config_int(var, value); - return 0; - } - if (!strcmp(var, "gc.auto")) { - gc_auto_threshold = git_config_int(var, value); - return 0; - } - if (!strcmp(var, "gc.autopacklimit")) { - gc_auto_pack_limit = git_config_int(var, value); - return 0; - } - if (!strcmp(var, "gc.pruneexpire")) { - if (value && strcmp(value, "now")) { - unsigned long now = approxidate("now"); - if (approxidate(value) >= now) - return error("Invalid %s: '%s'", var, value); - } - return git_config_string(&prune_expire, var, value); - } - return git_default_config(var, value, cb); -} - -static void append_option(const char **cmd, const char *opt, int max_length) -{ - int i; - - for (i = 0; cmd[i]; i++) - ; - - if (i + 2 >= max_length) - die("Too many options specified"); - cmd[i++] = opt; - cmd[i] = NULL; -} - -static int too_many_loose_objects(void) -{ - /* - * Quickly check if a "gc" is needed, by estimating how - * many loose objects there are. Because SHA-1 is evenly - * distributed, we can check only one and get a reasonable - * estimate. - */ - char path[PATH_MAX]; - const char *objdir = get_object_directory(); - DIR *dir; - struct dirent *ent; - int auto_threshold; - int num_loose = 0; - int needed = 0; - - if (gc_auto_threshold <= 0) - return 0; - - if (sizeof(path) <= snprintf(path, sizeof(path), "%s/17", objdir)) { - warning("insanely long object directory %.*s", 50, objdir); - return 0; - } - dir = opendir(path); - if (!dir) - return 0; - - auto_threshold = (gc_auto_threshold + 255) / 256; - while ((ent = readdir(dir)) != NULL) { - if (strspn(ent->d_name, "0123456789abcdef") != 38 || - ent->d_name[38] != '\0') - continue; - if (++num_loose > auto_threshold) { - needed = 1; - break; - } - } - closedir(dir); - return needed; -} - -static int too_many_packs(void) -{ - struct packed_git *p; - int cnt; - - if (gc_auto_pack_limit <= 0) - return 0; - - prepare_packed_git(); - for (cnt = 0, p = packed_git; p; p = p->next) { - if (!p->pack_local) - continue; - if (p->pack_keep) - continue; - /* - * Perhaps check the size of the pack and count only - * very small ones here? - */ - cnt++; - } - return gc_auto_pack_limit <= cnt; -} - -static int need_to_gc(void) -{ - /* - * Setting gc.auto to 0 or negative can disable the - * automatic gc. - */ - if (gc_auto_threshold <= 0) - return 0; - - /* - * If there are too many loose objects, but not too many - * packs, we run "repack -d -l". If there are too many packs, - * we run "repack -A -d -l". Otherwise we tell the caller - * there is no need. - */ - if (too_many_packs()) - append_option(argv_repack, - prune_expire && !strcmp(prune_expire, "now") ? - "-a" : "-A", - MAX_ADD); - else if (!too_many_loose_objects()) - return 0; - - if (run_hook(NULL, "pre-auto-gc", NULL)) - return 0; - return 1; -} - -int cmd_gc(int argc, const char **argv, const char *prefix) -{ - int aggressive = 0; - int auto_gc = 0; - int quiet = 0; - char buf[80]; - - struct option builtin_gc_options[] = { - OPT__QUIET(&quiet), - { OPTION_STRING, 0, "prune", &prune_expire, "date", - "prune unreferenced objects", - PARSE_OPT_OPTARG, NULL, (intptr_t)prune_expire }, - OPT_BOOLEAN(0, "aggressive", &aggressive, "be more thorough (increased runtime)"), - OPT_BOOLEAN(0, "auto", &auto_gc, "enable auto-gc mode"), - OPT_END() - }; - - git_config(gc_config, NULL); - - if (pack_refs < 0) - pack_refs = !is_bare_repository(); - - argc = parse_options(argc, argv, prefix, builtin_gc_options, - builtin_gc_usage, 0); - if (argc > 0) - usage_with_options(builtin_gc_usage, builtin_gc_options); - - if (aggressive) { - append_option(argv_repack, "-f", MAX_ADD); - append_option(argv_repack, "--depth=250", MAX_ADD); - if (aggressive_window > 0) { - sprintf(buf, "--window=%d", aggressive_window); - append_option(argv_repack, buf, MAX_ADD); - } - } - if (quiet) - append_option(argv_repack, "-q", MAX_ADD); - - if (auto_gc) { - /* - * Auto-gc should be least intrusive as possible. - */ - if (!need_to_gc()) - return 0; - fprintf(stderr, - "Auto packing the repository for optimum performance.%s\n", - quiet - ? "" - : (" You may also\n" - "run \"git gc\" manually. See " - "\"git help gc\" for more information.")); - } else - append_option(argv_repack, - prune_expire && !strcmp(prune_expire, "now") - ? "-a" : "-A", - MAX_ADD); - - if (pack_refs && run_command_v_opt(argv_pack_refs, RUN_GIT_CMD)) - return error(FAILED_RUN, argv_pack_refs[0]); - - if (run_command_v_opt(argv_reflog, RUN_GIT_CMD)) - return error(FAILED_RUN, argv_reflog[0]); - - if (run_command_v_opt(argv_repack, RUN_GIT_CMD)) - return error(FAILED_RUN, argv_repack[0]); - - if (prune_expire) { - argv_prune[2] = prune_expire; - if (run_command_v_opt(argv_prune, RUN_GIT_CMD)) - return error(FAILED_RUN, argv_prune[0]); - } - - if (run_command_v_opt(argv_rerere, RUN_GIT_CMD)) - return error(FAILED_RUN, argv_rerere[0]); - - if (auto_gc && too_many_loose_objects()) - warning("There are too many unreachable loose objects; " - "run 'git prune' to remove them."); - - return 0; -} |