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https://github.com/git/git
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f813e9ea5f
When for_each_packed_object is called, we call prepare_packed_git() to make sure we have the actual list of packs. But the latter does not actually open the pack indices, meaning that pack->nr_objects may simply be 0 if the pack has not otherwise been used since the program started. In practice, this didn't come up for the current callers, because they iterate the packed objects only after iterating all reachable objects (so for it to matter you would have to have a pack consisting only of unreachable objects). But it is a dangerous and confusing interface that should be fixed for future callers. Note that we do not end the iteration when a pack cannot be opened, but we do return an error. That lets you complete the iteration even in actively-repacked repository where an .idx file may racily go away, but it also lets callers know that they may not have gotten the complete list (which the current reachability-check caller does care about). We have to tweak one of the prune tests due to the changed return value; an earlier test creates bogus .idx files and does not clean them up. Having to make this tweak is a good thing; it means we will not prune in a broken repository, and the test confirms that we do not negatively impact a more lenient caller, count-objects. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
266 lines
6.3 KiB
Bash
Executable file
266 lines
6.3 KiB
Bash
Executable file
#!/bin/sh
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#
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# Copyright (c) 2008 Johannes E. Schindelin
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#
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test_description='prune'
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. ./test-lib.sh
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day=$((60*60*24))
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week=$(($day*7))
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add_blob() {
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before=$(git count-objects | sed "s/ .*//") &&
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BLOB=$(echo aleph_0 | git hash-object -w --stdin) &&
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BLOB_FILE=.git/objects/$(echo $BLOB | sed "s/^../&\//") &&
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verbose test $((1 + $before)) = $(git count-objects | sed "s/ .*//") &&
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test_path_is_file $BLOB_FILE &&
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test-chmtime =+0 $BLOB_FILE
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}
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test_expect_success setup '
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: > file &&
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git add file &&
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test_tick &&
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git commit -m initial &&
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git gc
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'
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test_expect_success 'prune stale packs' '
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orig_pack=$(echo .git/objects/pack/*.pack) &&
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: > .git/objects/tmp_1.pack &&
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: > .git/objects/tmp_2.pack &&
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test-chmtime =-86501 .git/objects/tmp_1.pack &&
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git prune --expire 1.day &&
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test_path_is_file $orig_pack &&
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test_path_is_file .git/objects/tmp_2.pack &&
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test_path_is_missing .git/objects/tmp_1.pack
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'
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test_expect_success 'prune --expire' '
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add_blob &&
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git prune --expire=1.hour.ago &&
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verbose test $((1 + $before)) = $(git count-objects | sed "s/ .*//") &&
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test_path_is_file $BLOB_FILE &&
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test-chmtime =-86500 $BLOB_FILE &&
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git prune --expire 1.day &&
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verbose test $before = $(git count-objects | sed "s/ .*//") &&
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test_path_is_missing $BLOB_FILE
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'
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test_expect_success 'gc: implicit prune --expire' '
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add_blob &&
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test-chmtime =-$((2*$week-30)) $BLOB_FILE &&
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git gc &&
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verbose test $((1 + $before)) = $(git count-objects | sed "s/ .*//") &&
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test_path_is_file $BLOB_FILE &&
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test-chmtime =-$((2*$week+1)) $BLOB_FILE &&
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git gc &&
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verbose test $before = $(git count-objects | sed "s/ .*//") &&
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test_path_is_missing $BLOB_FILE
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'
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test_expect_success 'gc: refuse to start with invalid gc.pruneExpire' '
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git config gc.pruneExpire invalid &&
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test_must_fail git gc
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'
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test_expect_success 'gc: start with ok gc.pruneExpire' '
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git config gc.pruneExpire 2.days.ago &&
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git gc
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'
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test_expect_success 'prune: prune nonsense parameters' '
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test_must_fail git prune garbage &&
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test_must_fail git prune --- &&
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test_must_fail git prune --no-such-option
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'
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test_expect_success 'prune: prune unreachable heads' '
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git config core.logAllRefUpdates false &&
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mv .git/logs .git/logs.old &&
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: > file2 &&
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git add file2 &&
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git commit -m temporary &&
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tmp_head=$(git rev-list -1 HEAD) &&
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git reset HEAD^ &&
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git prune &&
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test_must_fail git reset $tmp_head --
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'
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test_expect_success 'prune: do not prune detached HEAD with no reflog' '
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git checkout --detach --quiet &&
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git commit --allow-empty -m "detached commit" &&
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# verify that there is no reflogs
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# (should be removed and disabled by previous test)
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test_path_is_missing .git/logs &&
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git prune -n >prune_actual &&
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: >prune_expected &&
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test_cmp prune_actual prune_expected
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'
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test_expect_success 'prune: prune former HEAD after checking out branch' '
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head_sha1=$(git rev-parse HEAD) &&
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git checkout --quiet master &&
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git prune -v >prune_actual &&
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grep "$head_sha1" prune_actual
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'
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test_expect_success 'prune: do not prune heads listed as an argument' '
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: > file2 &&
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git add file2 &&
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git commit -m temporary &&
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tmp_head=$(git rev-list -1 HEAD) &&
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git reset HEAD^ &&
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git prune -- $tmp_head &&
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git reset $tmp_head --
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'
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test_expect_success 'gc --no-prune' '
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add_blob &&
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test-chmtime =-$((5001*$day)) $BLOB_FILE &&
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git config gc.pruneExpire 2.days.ago &&
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git gc --no-prune &&
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verbose test 1 = $(git count-objects | sed "s/ .*//") &&
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test_path_is_file $BLOB_FILE
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'
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test_expect_success 'gc respects gc.pruneExpire' '
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git config gc.pruneExpire 5002.days.ago &&
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git gc &&
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test_path_is_file $BLOB_FILE &&
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git config gc.pruneExpire 5000.days.ago &&
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git gc &&
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test_path_is_missing $BLOB_FILE
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'
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test_expect_success 'gc --prune=<date>' '
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add_blob &&
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test-chmtime =-$((5001*$day)) $BLOB_FILE &&
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git gc --prune=5002.days.ago &&
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test_path_is_file $BLOB_FILE &&
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git gc --prune=5000.days.ago &&
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test_path_is_missing $BLOB_FILE
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'
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test_expect_success 'gc --prune=never' '
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add_blob &&
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git gc --prune=never &&
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test_path_is_file $BLOB_FILE &&
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git gc --prune=now &&
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test_path_is_missing $BLOB_FILE
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'
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test_expect_success 'gc respects gc.pruneExpire=never' '
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git config gc.pruneExpire never &&
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add_blob &&
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git gc &&
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test_path_is_file $BLOB_FILE &&
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git config gc.pruneExpire now &&
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git gc &&
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test_path_is_missing $BLOB_FILE
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'
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test_expect_success 'prune --expire=never' '
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add_blob &&
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git prune --expire=never &&
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test_path_is_file $BLOB_FILE &&
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git prune &&
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test_path_is_missing $BLOB_FILE
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'
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test_expect_success 'gc: prune old objects after local clone' '
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add_blob &&
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test-chmtime =-$((2*$week+1)) $BLOB_FILE &&
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git clone --no-hardlinks . aclone &&
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(
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cd aclone &&
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verbose test 1 = $(git count-objects | sed "s/ .*//") &&
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test_path_is_file $BLOB_FILE &&
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git gc --prune &&
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verbose test 0 = $(git count-objects | sed "s/ .*//") &&
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test_path_is_missing $BLOB_FILE
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)
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'
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test_expect_success 'garbage report in count-objects -v' '
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test_when_finished "rm -f .git/objects/pack/fake*" &&
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: >.git/objects/pack/foo &&
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: >.git/objects/pack/foo.bar &&
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: >.git/objects/pack/foo.keep &&
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: >.git/objects/pack/foo.pack &&
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: >.git/objects/pack/fake.bar &&
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: >.git/objects/pack/fake.keep &&
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: >.git/objects/pack/fake.pack &&
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: >.git/objects/pack/fake.idx &&
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: >.git/objects/pack/fake2.keep &&
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: >.git/objects/pack/fake3.idx &&
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git count-objects -v 2>stderr &&
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grep "index file .git/objects/pack/fake.idx is too small" stderr &&
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grep "^warning:" stderr | sort >actual &&
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cat >expected <<\EOF &&
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warning: garbage found: .git/objects/pack/fake.bar
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warning: garbage found: .git/objects/pack/foo
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warning: garbage found: .git/objects/pack/foo.bar
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warning: no corresponding .idx or .pack: .git/objects/pack/fake2.keep
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warning: no corresponding .idx: .git/objects/pack/foo.keep
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warning: no corresponding .idx: .git/objects/pack/foo.pack
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warning: no corresponding .pack: .git/objects/pack/fake3.idx
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EOF
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test_cmp expected actual
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'
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test_expect_success 'prune .git/shallow' '
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SHA1=`echo hi|git commit-tree HEAD^{tree}` &&
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echo $SHA1 >.git/shallow &&
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git prune --dry-run >out &&
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grep $SHA1 .git/shallow &&
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grep $SHA1 out &&
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git prune &&
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test_path_is_missing .git/shallow
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'
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test_expect_success 'prune: handle alternate object database' '
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test_create_repo A &&
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git -C A commit --allow-empty -m "initial commit" &&
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git clone --shared A B &&
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git -C B commit --allow-empty -m "next commit" &&
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git -C B prune
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'
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test_done
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