git-commit-vandalism/t/t5304-prune.sh
Max Kirillov c40fdd01dd reachable.c: add HEAD to reachability starting commits
HEAD is not explicitly used as a starting commit for
calculating reachability, so if it's detached and reflogs
are disabled it may be pruned.

Add tests which demonstrate it. Test 'prune: prune former HEAD after checking
out branch' also reverts changes to repository.

Signed-off-by: Max Kirillov <max@max630.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-09-03 10:47:44 -07:00

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#!/bin/sh
#
# Copyright (c) 2008 Johannes E. Schindelin
#
test_description='prune'
. ./test-lib.sh
day=$((60*60*24))
week=$(($day*7))
add_blob() {
before=$(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 =+0 $BLOB_FILE
}
test_expect_success setup '
: > file &&
git add file &&
test_tick &&
git commit -m initial &&
git gc
'
test_expect_success 'prune stale packs' '
orig_pack=$(echo .git/objects/pack/*.pack) &&
: > .git/objects/tmp_1.pack &&
: > .git/objects/tmp_2.pack &&
test-chmtime =-86501 .git/objects/tmp_1.pack &&
git prune --expire 1.day &&
test -f $orig_pack &&
test -f .git/objects/tmp_2.pack &&
! test -f .git/objects/tmp_1.pack
'
test_expect_success 'prune --expire' '
add_blob &&
git prune --expire=1.hour.ago &&
test $((1 + $before)) = $(git count-objects | sed "s/ .*//") &&
test -f $BLOB_FILE &&
test-chmtime =-86500 $BLOB_FILE &&
git prune --expire 1.day &&
test $before = $(git count-objects | sed "s/ .*//") &&
! test -f $BLOB_FILE
'
test_expect_success 'gc: implicit prune --expire' '
add_blob &&
test-chmtime =-$((2*$week-30)) $BLOB_FILE &&
git gc &&
test $((1 + $before)) = $(git count-objects | sed "s/ .*//") &&
test -f $BLOB_FILE &&
test-chmtime =-$((2*$week+1)) $BLOB_FILE &&
git gc &&
test $before = $(git count-objects | sed "s/ .*//") &&
! test -f $BLOB_FILE
'
test_expect_success 'gc: refuse to start with invalid gc.pruneExpire' '
git config gc.pruneExpire invalid &&
test_must_fail git gc
'
test_expect_success 'gc: start with ok gc.pruneExpire' '
git config gc.pruneExpire 2.days.ago &&
git gc
'
test_expect_success 'prune: prune nonsense parameters' '
test_must_fail git prune garbage &&
test_must_fail git prune --- &&
test_must_fail git prune --no-such-option
'
test_expect_success 'prune: prune unreachable heads' '
git config core.logAllRefUpdates false &&
mv .git/logs .git/logs.old &&
: > file2 &&
git add file2 &&
git commit -m temporary &&
tmp_head=$(git rev-list -1 HEAD) &&
git reset HEAD^ &&
git prune &&
test_must_fail git reset $tmp_head --
'
test_expect_success 'prune: do not prune detached HEAD with no reflog' '
git checkout --detach --quiet &&
git commit --allow-empty -m "detached commit" &&
# verify that there is no reflogs
# (should be removed and disabled by previous test)
test ! -e .git/logs &&
git prune -n >prune_actual &&
: >prune_expected &&
test_cmp prune_actual prune_expected
'
test_expect_success 'prune: prune former HEAD after checking out branch' '
head_sha1=$(git rev-parse HEAD) &&
git checkout --quiet master &&
git prune -v >prune_actual &&
grep "$head_sha1" prune_actual
'
test_expect_success 'prune: do not prune heads listed as an argument' '
: > file2 &&
git add file2 &&
git commit -m temporary &&
tmp_head=$(git rev-list -1 HEAD) &&
git reset HEAD^ &&
git prune -- $tmp_head &&
git reset $tmp_head --
'
test_expect_success 'gc --no-prune' '
add_blob &&
test-chmtime =-$((5001*$day)) $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 $BLOB_FILE
'
test_expect_success 'gc --prune=<date>' '
add_blob &&
test-chmtime =-$((5001*$day)) $BLOB_FILE &&
git gc --prune=5002.days.ago &&
test -f $BLOB_FILE &&
git gc --prune=5000.days.ago &&
test ! -f $BLOB_FILE
'
test_expect_success 'gc --prune=never' '
add_blob &&
git gc --prune=never &&
test -f $BLOB_FILE &&
git gc --prune=now &&
test ! -f $BLOB_FILE
'
test_expect_success 'gc respects gc.pruneExpire=never' '
git config gc.pruneExpire never &&
add_blob &&
git gc &&
test -f $BLOB_FILE &&
git config gc.pruneExpire now &&
git gc &&
test ! -f $BLOB_FILE
'
test_expect_success 'prune --expire=never' '
add_blob &&
git prune --expire=never &&
test -f $BLOB_FILE &&
git prune &&
test ! -f $BLOB_FILE
'
test_expect_success 'gc: prune old objects after local clone' '
add_blob &&
test-chmtime =-$((2*$week+1)) $BLOB_FILE &&
git clone --no-hardlinks . aclone &&
(
cd aclone &&
test 1 = $(git count-objects | sed "s/ .*//") &&
test -f $BLOB_FILE &&
git gc --prune &&
test 0 = $(git count-objects | sed "s/ .*//") &&
! test -f $BLOB_FILE
)
'
test_expect_success 'garbage report in count-objects -v' '
: >.git/objects/pack/foo &&
: >.git/objects/pack/foo.bar &&
: >.git/objects/pack/foo.keep &&
: >.git/objects/pack/foo.pack &&
: >.git/objects/pack/fake.bar &&
: >.git/objects/pack/fake.keep &&
: >.git/objects/pack/fake.pack &&
: >.git/objects/pack/fake.idx &&
: >.git/objects/pack/fake2.keep &&
: >.git/objects/pack/fake3.idx &&
git count-objects -v 2>stderr &&
grep "index file .git/objects/pack/fake.idx is too small" stderr &&
grep "^warning:" stderr | sort >actual &&
cat >expected <<\EOF &&
warning: garbage found: .git/objects/pack/fake.bar
warning: garbage found: .git/objects/pack/foo
warning: garbage found: .git/objects/pack/foo.bar
warning: no corresponding .idx or .pack: .git/objects/pack/fake2.keep
warning: no corresponding .idx: .git/objects/pack/foo.keep
warning: no corresponding .idx: .git/objects/pack/foo.pack
warning: no corresponding .pack: .git/objects/pack/fake3.idx
EOF
test_cmp expected actual
'
test_expect_success 'prune .git/shallow' '
SHA1=`echo hi|git commit-tree HEAD^{tree}` &&
echo $SHA1 >.git/shallow &&
git prune --dry-run >out &&
grep $SHA1 .git/shallow &&
grep $SHA1 out &&
git prune &&
! test -f .git/shallow
'
test_done