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gc: make --prune useful again by accepting an optional parameter

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With this patch, "git gc --no-prune" will not prune any loose (and
dangling) object, and "git gc --prune=5.minutes.ago" will prune
all loose objects older than 5 minutes.

This patch benefitted from suggestions by Thomas Rast and Jan Krï¿œger.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Johannes Schindelin 2009-02-14 23:10:10 +01:00 committed by Junio C Hamano
parent e9cc02f0e4
commit 58e9d9d472
3 changed files with 59 additions and 8 deletions
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10
Documentation/git-gc.txt
View File

@ -8,7 +8,7 @@ git-gc - Cleanup unnecessary files and optimize the local repository
SYNOPSIS
--------
'git gc' [--aggressive] [--auto] [--quiet]
'git gc' [--aggressive] [--auto] [--quiet] [--prune=<date> | --no-prune]
DESCRIPTION
-----------
@ -59,6 +59,14 @@ are consolidated into a single pack by using the `-A` option of
'git-repack'. Setting `gc.autopacklimit` to 0 disables
automatic consolidation of packs.
--prune=<date>::
Prune loose objects older than date (default is 2 weeks ago,
overrideable by the config variable `gc.pruneExpire`). This
option is on by default.
--no-prune::
Do not prune any loose objects.
--quiet::
Suppress all progress reports.

19
builtin-gc.c
View File

@ -161,7 +161,8 @@ static int need_to_gc(void)
*/
if (too_many_packs())
append_option(argv_repack,
!strcmp(prune_expire, "now") ? "-a" : "-A",
prune_expire && !strcmp(prune_expire, "now") ?
"-a" : "-A",
MAX_ADD);
else if (!too_many_loose_objects())
return 0;
@ -173,14 +174,15 @@ static int need_to_gc(void)
int cmd_gc(int argc, const char **argv, const char *prefix)
{
int prune = 0;
int aggressive = 0;
int auto_gc = 0;
int quiet = 0;
char buf[80];
struct option builtin_gc_options[] = {
OPT_BOOLEAN(0, "prune", &prune, "prune unreferenced objects (deprecated)"),
{ 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_BOOLEAN('q', "quiet", &quiet, "suppress progress reports"),
@ -218,7 +220,8 @@ int cmd_gc(int argc, const char **argv, const char *prefix)
"\"git help gc\" for more information.\n");
} else
append_option(argv_repack,
!strcmp(prune_expire, "now") ? "-a" : "-A",
prune_expire && !strcmp(prune_expire, "now")
? "-a" : "-A",
MAX_ADD);
if (pack_refs && run_command_v_opt(argv_pack_refs, RUN_GIT_CMD))
@ -230,9 +233,11 @@ int cmd_gc(int argc, const char **argv, const char *prefix)
if (run_command_v_opt(argv_repack, RUN_GIT_CMD))
return error(FAILED_RUN, argv_repack[0]);
argv_prune[2] = prune_expire;
if (run_command_v_opt(argv_prune, RUN_GIT_CMD))
return error(FAILED_RUN, argv_prune[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]);

38
t/t5304-prune.sh
View File

@ -112,4 +112,42 @@ test_expect_success 'prune: do not prune heads listed as an argument' '
'
test_expect_success 'gc --no-prune' '
before=$(git count-objects | sed "s/ .*//") &&
BLOB=$(echo aleph_0 | git hash-object -w --stdin) &&
BLOB_FILE=.git/objects/$(echo $BLOB | sed "s/^../&\//") &&
test $((1 + $before)) = $(git count-objects | sed "s/ .*//") &&
test -f $BLOB_FILE &&
test-chmtime =-$((86400*5001)) $BLOB_FILE &&
git config gc.pruneExpire 2.days.ago &&
git gc --no-prune &&
test 1 = $(git count-objects | sed "s/ .*//") &&
test -f $BLOB_FILE
'
test_expect_success 'gc respects gc.pruneExpire' '
git config gc.pruneExpire 5002.days.ago &&
git gc &&
test -f $BLOB_FILE &&
git config gc.pruneExpire 5000.days.ago &&
git gc &&
test ! -f $BLOB_FILE
'
test_expect_success 'gc --prune=<date>' '
BLOB=$(echo aleph_0 | git hash-object -w --stdin) &&
BLOB_FILE=.git/objects/$(echo $BLOB | sed "s/^../&\//") &&
test-chmtime =-$((86400*5001)) $BLOB_FILE &&
git gc --prune=5002.days.ago &&
test -f $BLOB_FILE &&
git gc --prune=5000.days.ago &&
test ! -f $BLOB_FILE
'
test_done