Earlier, 'git prune' would prune all loose unreachable objects.
This could be quite dangerous, as the objects could be used in
an ongoing operation.
This patch adds a mode to expire only loose, unreachable objects
which are older than a certain time. For example, by
git prune --expire 14.days
you can prune only those objects which are loose, unreachable
and older than 14 days (and thus probably outdated).
The implementation uses st.st_mtime rather than st.st_ctime,
because it can be tested better, using 'touch -d <time>' (and
omitting the test when the platform does not support that
command line switch).
Signed-off-by: Johannes Schindelin <johannes.schindelin@xxxxxx>
---
On Thu, 29 Nov 2007, Junio C Hamano wrote:
> Johannes Schindelin <Johannes.Schindelin@xxxxxx> writes:
>
> > The implementation uses st.st_mtime rather than st.st_ctime,
> > because it can be tested better, using 'touch -d <time>' (and
> > omitting the test when the platform does not support that
> > command line switch).
>
> But I think you can use more portable -t for setting mtime to
> 1970/01/01, but I had a feeling that earlier we were bitten by
> non-portability of "touch" and introduced test-chmtime.
Somehow that slipped by me. This patch uses test-chmtime.
Documentation/git-prune.txt | 5 ++++-
builtin-prune.c | 21 ++++++++++++++++++++-
t/t1410-reflog.sh | 17 +++++++++++++++++
3 files changed, 41 insertions(+), 2 deletions(-)
diff --git a/Documentation/git-prune.txt b/Documentation/git-prune.txt
index 0ace233..9835bdb 100644
--- a/Documentation/git-prune.txt
+++ b/Documentation/git-prune.txt
@@ -8,7 +8,7 @@ git-prune - Prune all unreachable objects from the object database
SYNOPSIS
--------
-'git-prune' [-n] [--] [<head>...]
+'git-prune' [-n] [--expire <expire>] [--] [<head>...]
DESCRIPTION
-----------
@@ -31,6 +31,9 @@ OPTIONS
\--::
Do not interpret any more arguments as options.
+\--expire <time>::
+ Only expire loose objects older than <time>.
+
<head>...::
In addition to objects
reachable from any of our references, keep objects
diff --git a/builtin-prune.c b/builtin-prune.c
index 44df59e..b5e7684 100644
--- a/builtin-prune.c
+++ b/builtin-prune.c
@@ -7,15 +7,24 @@
static const char prune_usage[] = "git-prune [-n]";
static int show_only;
+static unsigned long expire;
static int prune_object(char *path, const char *filename, const unsigned char *sha1)
{
+ const char *fullpath = mkpath("%s/%s", path, filename);
+ if (expire) {
+ struct stat st;
+ if (lstat(fullpath, &st))
+ return error("Could not stat '%s'", fullpath);
+ if (st.st_mtime > expire)
+ return 0;
+ }
if (show_only) {
enum object_type type = sha1_object_info(sha1, NULL);
printf("%s %s\n", sha1_to_hex(sha1),
(type > 0) ? typename(type) : "unknown");
} else
- unlink(mkpath("%s/%s", path, filename));
+ unlink(fullpath);
return 0;
}
@@ -85,6 +94,16 @@ int cmd_prune(int argc, const char **argv, const char *prefix)
show_only = 1;
continue;
}
+ if (!strcmp(arg, "--expire")) {
+ if (++i < argc) {
+ expire = approxidate(argv[i]);
+ continue;
+ }
+ }
+ else if (!prefixcmp(arg, "--expire=")) {
+ expire = approxidate(arg + 9);
+ continue;
+ }
usage(prune_usage);
}
diff --git a/t/t1410-reflog.sh b/t/t1410-reflog.sh
index 12a53ed..4a17573 100755
--- a/t/t1410-reflog.sh
+++ b/t/t1410-reflog.sh
@@ -201,4 +201,21 @@ test_expect_success 'delete' '
! grep dragon < output
'
+test_expect_success 'prune --expire' '
+
+ BLOB=$(echo aleph | git hash-object -w --stdin) &&
+ BLOB_FILE=.git/objects/$(echo $BLOB | sed "s/^../&\//") &&
+ test 20 = $(git count-objects | sed "s/ .*//") &&
+ test -f $BLOB_FILE &&
+ git reset --hard &&
+ git prune --expire=1.hour.ago &&
+ test 20 = $(git count-objects | sed "s/ .*//") &&
+ test -f $BLOB_FILE &&
+ test-chmtime -86400 $BLOB_FILE &&
+ git prune --expire 1.day &&
+ test 19 = $(git count-objects | sed "s/ .*//") &&
+ ! test -f $BLOB_FILE
+
+'
+
test_done
--
1.5.3.6.2088.g8c260
-
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