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git/t/t5304-prune.sh
Jeff King 8ddfce7144 t: drop "verbose" helper function 
We have a small helper function called "verbose", with the idea that you
can write:

  verbose foo

to get a message to stderr when the "foo" command fails, even if it does
not produce any output itself. This goes back to 8ad1652418 (t5304: use
helper to report failure of "test foo = bar", 2014-10-10). It does work,
but overall it has not been a big success for two reasons:

  1. Test writers have to remember to put it there (and the resulting
     test code is longer as a result).

  2. It doesn't handle the opposite case (we expect "foo" to fail, but
     it succeeds), leading to inconsistencies in tests (which you can
     see in many hunks of this patch, e.g. ones involving "has_cr").

Most importantly, we added a136f6d8ff (test-lib.sh: support -x option
for shell-tracing, 2014-10-10) at the same time, and it does roughly the
same thing. The output is not quite as succinct as "verbose", and you
have to watch out for stray shell-traces ending up in stderr. But it
solves both of the problems above, and has clearly become the preferred
tool.

Let's consider the "verbose" function a failed experiment and remove the
last few callers (which are all many years old, and have been dwindling
as we remove them from scripts we touch for other reasons). It will be
one less thing for new test writers to see and wonder if they should be
using themselves.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-05-08 14:50:28 -07:00

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#!/bin/sh
#
# Copyright (c) 2008 Johannes E. Schindelin
#
test_description='prune'
GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
. ./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_path_is_file $BLOB_FILE &&
test-tool chmtime =+0 $BLOB_FILE
}
test_expect_success setup '
>file &&
git add file &&
test_tick &&
git commit -m initial &&
git gc
'
test_expect_success 'bare repo prune is quiet without $GIT_DIR/objects/pack' '
git clone -q --shared --template= --bare . bare.git &&
rmdir bare.git/objects/pack &&
git --git-dir=bare.git prune --no-progress 2>prune.err &&
test_must_be_empty prune.err &&
rm -r bare.git prune.err
'
test_expect_success 'prune stale packs' '
orig_pack=$(echo .git/objects/pack/*.pack) &&
>.git/objects/tmp_1.pack &&
>.git/objects/tmp_2.pack &&
test-tool chmtime =-86501 .git/objects/tmp_1.pack &&
git prune --expire 1.day &&
test_path_is_file $orig_pack &&
test_path_is_file .git/objects/tmp_2.pack &&
test_path_is_missing .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_path_is_file $BLOB_FILE &&
test-tool chmtime =-86500 $BLOB_FILE &&
git prune --expire 1.day &&
test $before = $(git count-objects | sed "s/ .*//") &&
test_path_is_missing $BLOB_FILE
'
test_expect_success 'gc: implicit prune --expire' '
add_blob &&
test-tool chmtime =-$((2*$week-30)) $BLOB_FILE &&
git gc --no-cruft &&
test $((1 + $before)) = $(git count-objects | sed "s/ .*//") &&
test_path_is_file $BLOB_FILE &&
test-tool chmtime =-$((2*$week+1)) $BLOB_FILE &&
git gc --no-cruft &&
test $before = $(git count-objects | sed "s/ .*//") &&
test_path_is_missing $BLOB_FILE
'
test_expect_success 'gc: refuse to start with invalid gc.pruneExpire' '
test_when_finished "rm -rf repo" &&
git init repo &&
>repo/.git/config &&
git -C repo config gc.pruneExpire invalid &&
cat >expect <<-\EOF &&
error: Invalid gc.pruneexpire: '\''invalid'\''
fatal: bad config variable '\''gc.pruneexpire'\'' in file '\''.git/config'\'' at line 2
EOF
test_must_fail git -C repo gc 2>actual &&
test_cmp expect actual
'
test_expect_success 'gc: start with ok gc.pruneExpire' '
git config gc.pruneExpire 2.days.ago &&
git gc --no-cruft
'
test_expect_success 'prune: prune nonsense parameters' '
test_must_fail git prune garbage &&
test_must_fail git prune --- &&
test_must_fail git prune --no-such-option
'
test_expect_success 'prune: prune unreachable heads' '
git config core.logAllRefUpdates false &&
>file2 &&
git add file2 &&
git commit -m temporary &&
tmp_head=$(git rev-list -1 HEAD) &&
git reset HEAD^ &&
git reflog expire --all &&
git prune &&
test_must_fail git reset $tmp_head --
'
test_expect_success 'prune: do not prune detached HEAD with no reflog' '
git checkout --detach --quiet &&
git commit --allow-empty -m "detached commit" &&
git reflog expire --all &&
git prune -n >prune_actual &&
test_must_be_empty prune_actual
'
test_expect_success 'prune: prune former HEAD after checking out branch' '
head_oid=$(git rev-parse HEAD) &&
git checkout --quiet main &&
git reflog expire --all &&
git prune -v >prune_actual &&
grep "$head_oid" prune_actual
'
test_expect_success 'prune: do not prune heads listed as an argument' '
>file2 &&
git add file2 &&
git commit -m temporary &&
tmp_head=$(git rev-list -1 HEAD) &&
git reset HEAD^ &&
git prune -- $tmp_head &&
git reset $tmp_head --
'
test_expect_success 'gc --no-prune' '
add_blob &&
test-tool chmtime =-$((5001*$day)) $BLOB_FILE &&
git config gc.pruneExpire 2.days.ago &&
git gc --no-prune --no-cruft &&
test 1 = $(git count-objects | sed "s/ .*//") &&
test_path_is_file $BLOB_FILE
'
test_expect_success 'gc respects gc.pruneExpire' '
git config gc.pruneExpire 5002.days.ago &&
git gc --no-cruft &&
test_path_is_file $BLOB_FILE &&
git config gc.pruneExpire 5000.days.ago &&
git gc --no-cruft &&
test_path_is_missing $BLOB_FILE
'
test_expect_success 'gc --prune=<date>' '
add_blob &&
test-tool chmtime =-$((5001*$day)) $BLOB_FILE &&
git gc --prune=5002.days.ago --no-cruft &&
test_path_is_file $BLOB_FILE &&
git gc --prune=5000.days.ago --no-cruft &&
test_path_is_missing $BLOB_FILE
'
test_expect_success 'gc --prune=never' '
add_blob &&
git gc --prune=never --no-cruft &&
test_path_is_file $BLOB_FILE &&
git gc --prune=now --no-cruft &&
test_path_is_missing $BLOB_FILE
'
test_expect_success 'gc respects gc.pruneExpire=never' '
git config gc.pruneExpire never &&
add_blob &&
git gc --no-cruft &&
test_path_is_file $BLOB_FILE &&
git config gc.pruneExpire now &&
git gc --no-cruft &&
test_path_is_missing $BLOB_FILE
'
test_expect_success 'prune --expire=never' '
add_blob &&
git prune --expire=never &&
test_path_is_file $BLOB_FILE &&
git prune &&
test_path_is_missing $BLOB_FILE
'
test_expect_success 'gc: prune old objects after local clone' '
add_blob &&
test-tool chmtime =-$((2*$week+1)) $BLOB_FILE &&
git clone --no-hardlinks . aclone &&
(
cd aclone &&
test 1 = $(git count-objects | sed "s/ .*//") &&
test_path_is_file $BLOB_FILE &&
git gc --prune --no-cruft &&
test 0 = $(git count-objects | sed "s/ .*//") &&
test_path_is_missing $BLOB_FILE
)
'
test_expect_success 'garbage report in count-objects -v' '
test_when_finished "rm -f .git/objects/pack/fake*" &&
test_when_finished "rm -f .git/objects/pack/foo*" &&
>.git/objects/pack/foo &&
>.git/objects/pack/foo.bar &&
>.git/objects/pack/foo.keep &&
>.git/objects/pack/foo.pack &&
>.git/objects/pack/fake.bar &&
>.git/objects/pack/fake.keep &&
>.git/objects/pack/fake.pack &&
>.git/objects/pack/fake.idx &&
>.git/objects/pack/fake2.keep &&
>.git/objects/pack/fake3.idx &&
git count-objects -v 2>stderr &&
grep "index file .git/objects/pack/fake.idx is too small" stderr &&
grep "^warning:" stderr | sort >actual &&
cat >expected <<\EOF &&
warning: garbage found: .git/objects/pack/fake.bar
warning: garbage found: .git/objects/pack/foo
warning: garbage found: .git/objects/pack/foo.bar
warning: no corresponding .idx or .pack: .git/objects/pack/fake2.keep
warning: no corresponding .idx: .git/objects/pack/foo.keep
warning: no corresponding .idx: .git/objects/pack/foo.pack
warning: no corresponding .pack: .git/objects/pack/fake3.idx
EOF
test_cmp expected actual
'
test_expect_success 'clean pack garbage with gc' '
test_when_finished "rm -f .git/objects/pack/fake*" &&
test_when_finished "rm -f .git/objects/pack/foo*" &&
>.git/objects/pack/foo.keep &&
>.git/objects/pack/foo.pack &&
>.git/objects/pack/fake.idx &&
>.git/objects/pack/fake2.keep &&
>.git/objects/pack/fake2.idx &&
>.git/objects/pack/fake3.keep &&
git gc --no-cruft &&
git count-objects -v 2>stderr &&
grep "^warning:" stderr | sort >actual &&
cat >expected <<\EOF &&
warning: no corresponding .idx or .pack: .git/objects/pack/fake3.keep
warning: no corresponding .idx: .git/objects/pack/foo.keep
warning: no corresponding .idx: .git/objects/pack/foo.pack
EOF
test_cmp expected actual
'
test_expect_success 'prune .git/shallow' '
oid=$(echo hi|git commit-tree HEAD^{tree}) &&
echo $oid >.git/shallow &&
git prune --dry-run >out &&
grep $oid .git/shallow &&
grep $oid out &&
git prune &&
test_path_is_missing .git/shallow
'
test_expect_success 'prune .git/shallow when there are no loose objects' '
oid=$(echo hi|git commit-tree HEAD^{tree}) &&
echo $oid >.git/shallow &&
git update-ref refs/heads/shallow-tip $oid &&
git repack -ad &&
# verify assumption that all loose objects are gone
git count-objects | grep ^0 &&
git prune &&
echo $oid >expect &&
test_cmp expect .git/shallow
'
test_expect_success 'prune: handle alternate object database' '
test_create_repo A &&
git -C A commit --allow-empty -m "initial commit" &&
git clone --shared A B &&
git -C B commit --allow-empty -m "next commit" &&
git -C B prune
'
test_expect_success 'prune: handle index in multiple worktrees' '
git worktree add second-worktree &&
echo "new blob for second-worktree" >second-worktree/blob &&
git -C second-worktree add blob &&
git prune --expire=now &&
git -C second-worktree show :blob >actual &&
test_cmp second-worktree/blob actual
'
test_expect_success 'prune: handle HEAD in multiple worktrees' '
git worktree add --detach third-worktree &&
echo "new blob for third-worktree" >third-worktree/blob &&
git -C third-worktree add blob &&
git -C third-worktree commit -m "third" &&
rm .git/worktrees/third-worktree/index &&
test_must_fail git -C third-worktree show :blob &&
git prune --expire=now &&
git -C third-worktree show HEAD:blob >actual &&
test_cmp third-worktree/blob actual
'
test_expect_success 'prune: handle HEAD reflog in multiple worktrees' '
git config core.logAllRefUpdates true &&
echo "lost blob for third-worktree" >expected &&
(
cd third-worktree &&
cat ../expected >blob &&
git add blob &&
git commit -m "second commit in third" &&
git clean -f && # Remove untracked left behind by deleting index
git reset --hard HEAD^
) &&
git prune --expire=now &&
oid=`git hash-object expected` &&
git -C third-worktree show "$oid" >actual &&
test_cmp expected actual
'
test_expect_success 'prune: handle expire option correctly' '
test_must_fail git prune --expire 2>error &&
test_i18ngrep "requires a value" error &&
test_must_fail git prune --expire=nyah 2>error &&
test_i18ngrep "malformed expiration" error &&
git prune --no-expire
'
test_expect_success 'trivial prune with bitmaps enabled' '
git repack -adb &&
blob=$(echo bitmap-unreachable-blob | git hash-object -w --stdin) &&
git prune --expire=now &&
git cat-file -e HEAD &&
test_must_fail git cat-file -e $blob
'
test_expect_success 'old reachable-from-recent retained with bitmaps' '
git repack -adb &&
to_drop=$(echo bitmap-from-recent-1 | git hash-object -w --stdin) &&
test-tool chmtime -86400 .git/objects/$(test_oid_to_path $to_drop) &&
to_save=$(echo bitmap-from-recent-2 | git hash-object -w --stdin) &&
test-tool chmtime -86400 .git/objects/$(test_oid_to_path $to_save) &&
tree=$(printf "100644 blob $to_save\tfile\n" | git mktree) &&
test-tool chmtime -86400 .git/objects/$(test_oid_to_path $tree) &&
commit=$(echo foo | git commit-tree $tree) &&
git prune --expire=12.hours.ago &&
git cat-file -e $commit &&
git cat-file -e $tree &&
git cat-file -e $to_save &&
test_must_fail git cat-file -e $to_drop
'
test_done
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