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fe6f2b081f
Commit fde67d6896 (prune: use bitmaps for reachability traversal,
2019-02-13) uses bitmaps for pruning when they're available, but only
covers this functionality in the t/perf tests. This makes a kind of
sense, since the point is that the behaviour is indistinguishable before
and after the patch, just faster.
But since the bitmap code path is not exercised at all in the regular
test suite, it leaves us open to a regression where the behavior does in
fact change. The most thorough way to test that would be running the
whole suite with bitmaps enabled. But we don't yet have a way to do
that, and anyway it's expensive to do so. Let's at least add a basic
test that exercises this path and make sure we prune an object we should
(and not one that we shouldn't).
That would hopefully catch the most obvious breakages early.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
352 lines
9.1 KiB
Bash
Executable file
352 lines
9.1 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-tool 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-tool 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-tool 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 $BLOB_FILE
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'
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test_expect_success 'gc: implicit prune --expire' '
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add_blob &&
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test-tool chmtime =-$((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 $BLOB_FILE &&
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test-tool chmtime =-$((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 $tmp_head --
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'
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test_expect_success 'prune: do not prune detached HEAD with no reflog' '
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git checkout --detach --quiet &&
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git commit --allow-empty -m "detached commit" &&
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# verify that there is no reflogs
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# (should be removed and disabled by previous test)
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test_path_is_missing .git/logs &&
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git prune -n >prune_actual &&
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test_must_be_empty prune_actual
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'
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test_expect_success 'prune: prune former HEAD after checking out branch' '
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head_oid=$(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 "$head_oid" prune_actual
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'
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test_expect_success 'prune: do not prune heads listed as an argument' '
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: > file2 &&
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git add file2 &&
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git commit -m temporary &&
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tmp_head=$(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 $tmp_head --
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'
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test_expect_success 'gc --no-prune' '
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add_blob &&
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test-tool chmtime =-$((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 $BLOB_FILE
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'
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test_expect_success 'gc --prune=<date>' '
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add_blob &&
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test-tool chmtime =-$((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 $BLOB_FILE
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'
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test_expect_success 'gc: prune old objects after local clone' '
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add_blob &&
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test-tool chmtime =-$((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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test_when_finished "rm -f .git/objects/pack/foo*" &&
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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 'clean pack garbage with gc' '
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test_when_finished "rm -f .git/objects/pack/fake*" &&
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test_when_finished "rm -f .git/objects/pack/foo*" &&
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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.idx &&
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: >.git/objects/pack/fake2.keep &&
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: >.git/objects/pack/fake2.idx &&
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: >.git/objects/pack/fake3.keep &&
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git gc &&
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git count-objects -v 2>stderr &&
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grep "^warning:" stderr | sort >actual &&
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cat >expected <<\EOF &&
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warning: no corresponding .idx or .pack: .git/objects/pack/fake3.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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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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oid=$(echo hi|git commit-tree HEAD^{tree}) &&
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echo $oid >.git/shallow &&
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git prune --dry-run >out &&
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grep $oid .git/shallow &&
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grep $oid out &&
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git prune &&
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test_path_is_missing .git/shallow
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'
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test_expect_success 'prune .git/shallow when there are no loose objects' '
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oid=$(echo hi|git commit-tree HEAD^{tree}) &&
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echo $oid >.git/shallow &&
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git update-ref refs/heads/shallow-tip $oid &&
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git repack -ad &&
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# verify assumption that all loose objects are gone
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git count-objects | grep ^0 &&
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git prune &&
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echo $oid >expect &&
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test_cmp expect .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_expect_success 'prune: handle index in multiple worktrees' '
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git worktree add second-worktree &&
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echo "new blob for second-worktree" >second-worktree/blob &&
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git -C second-worktree add blob &&
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git prune --expire=now &&
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git -C second-worktree show :blob >actual &&
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test_cmp second-worktree/blob actual
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'
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test_expect_success 'prune: handle HEAD in multiple worktrees' '
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git worktree add --detach third-worktree &&
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echo "new blob for third-worktree" >third-worktree/blob &&
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git -C third-worktree add blob &&
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git -C third-worktree commit -m "third" &&
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rm .git/worktrees/third-worktree/index &&
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test_must_fail git -C third-worktree show :blob &&
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git prune --expire=now &&
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git -C third-worktree show HEAD:blob >actual &&
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test_cmp third-worktree/blob actual
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'
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test_expect_success 'prune: handle HEAD reflog in multiple worktrees' '
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git config core.logAllRefUpdates true &&
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echo "lost blob for third-worktree" >expected &&
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(
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cd third-worktree &&
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cat ../expected >blob &&
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git add blob &&
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git commit -m "second commit in third" &&
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git reset --hard HEAD^
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) &&
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git prune --expire=now &&
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oid=`git hash-object expected` &&
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git -C third-worktree show "$oid" >actual &&
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test_cmp expected actual
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'
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test_expect_success 'prune: handle expire option correctly' '
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test_must_fail git prune --expire 2>error &&
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test_i18ngrep "requires a value" error &&
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test_must_fail git prune --expire=nyah 2>error &&
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test_i18ngrep "malformed expiration" error &&
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git prune --no-expire
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'
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test_expect_success 'trivial prune with bitmaps enabled' '
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git repack -adb &&
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blob=$(echo bitmap-unreachable-blob | git hash-object -w --stdin) &&
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git prune --expire=now &&
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git cat-file -e HEAD &&
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test_must_fail git cat-file -e $blob
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'
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test_done
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