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git-commit-vandalism/t/t5304-prune.sh
Elijah Newren f222bd34ff tests: remove leftover untracked files 
Remove untracked files that are unwanted after they are done being used.

While the set of cases in this patch is certainly far from
comprehensive, it was motivated by some work to see what the fallout
would be if we were to make the removal of untracked files as a side
effect of other commands into an error.  Some cases were a bit more
involved than the testcase changes included in this patch, but the ones
included here represent the simple cases.  While this patch is not that
important since we are not changing the behavior of those other commands
into an error in the near term, I thought these changes were useful
anyway as an explicit documentation of the intent that these untracked
files are no longer useful.

Acked-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Acked-by: Derrick Stolee <stolee@gmail.com>
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-12 16:42:40 -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/^../&\//") &&
verbose test $((1 + $before)) = $(git count-objects | sed "s/ .*//") &&
test_path_is_file $BLOB_FILE &&
test-tool chmtime =+0 $BLOB_FILE
}
test_expect_success setup '
>file &&
git add file &&
test_tick &&
git commit -m initial &&
git gc
'
test_expect_success 'prune stale packs' '
orig_pack=$(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 &&
verbose 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 &&
verbose 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 &&
verbose test $((1 + $before)) = $(git count-objects | sed "s/ .*//") &&
test_path_is_file $BLOB_FILE &&
test-tool chmtime =-$((2*$week+1)) $BLOB_FILE &&
git gc &&
verbose test $before = $(git count-objects | sed "s/ .*//") &&
test_path_is_missing $BLOB_FILE
'
test_expect_success 'gc: refuse to start with invalid gc.pruneExpire' '
git config gc.pruneExpire invalid &&
test_must_fail git gc
'
test_expect_success 'gc: start with ok gc.pruneExpire' '
git config gc.pruneExpire 2.days.ago &&
git gc
'
test_expect_success 'prune: prune nonsense parameters' '
test_must_fail git prune garbage &&
test_must_fail git prune --- &&
test_must_fail git prune --no-such-option
'
test_expect_success 'prune: prune unreachable heads' '
git config core.logAllRefUpdates false &&
>file2 &&
git add file2 &&
git commit -m temporary &&
tmp_head=$(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 &&
verbose 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 &&
test_path_is_file $BLOB_FILE &&
git config gc.pruneExpire 5000.days.ago &&
git gc &&
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 &&
test_path_is_file $BLOB_FILE &&
git gc --prune=5000.days.ago &&
test_path_is_missing $BLOB_FILE
'
test_expect_success 'gc --prune=never' '
add_blob &&
git gc --prune=never &&
test_path_is_file $BLOB_FILE &&
git gc --prune=now &&
test_path_is_missing $BLOB_FILE
'
test_expect_success 'gc respects gc.pruneExpire=never' '
git config gc.pruneExpire never &&
add_blob &&
git gc &&
test_path_is_file $BLOB_FILE &&
git config gc.pruneExpire now &&
git gc &&
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 &&
verbose test 1 = $(git count-objects | sed "s/ .*//") &&
test_path_is_file $BLOB_FILE &&
git gc --prune &&
verbose test 0 = $(git count-objects | sed "s/ .*//") &&
test_path_is_missing $BLOB_FILE
)
'
test_expect_success 'garbage report in count-objects -v' '
test_when_finished "rm -f .git/objects/pack/fake*" &&
test_when_finished "rm -f .git/objects/pack/foo*" &&
>.git/objects/pack/foo &&
>.git/objects/pack/foo.bar &&
>.git/objects/pack/foo.keep &&
>.git/objects/pack/foo.pack &&
>.git/objects/pack/fake.bar &&
>.git/objects/pack/fake.keep &&
>.git/objects/pack/fake.pack &&
>.git/objects/pack/fake.idx &&
>.git/objects/pack/fake2.keep &&
>.git/objects/pack/fake3.idx &&
git count-objects -v 2>stderr &&
grep "index file .git/objects/pack/fake.idx is too small" stderr &&
grep "^warning:" stderr | sort >actual &&
cat >expected <<\EOF &&
warning: garbage found: .git/objects/pack/fake.bar
warning: garbage found: .git/objects/pack/foo
warning: garbage found: .git/objects/pack/foo.bar
warning: no corresponding .idx or .pack: .git/objects/pack/fake2.keep
warning: no corresponding .idx: .git/objects/pack/foo.keep
warning: no corresponding .idx: .git/objects/pack/foo.pack
warning: no corresponding .pack: .git/objects/pack/fake3.idx
EOF
test_cmp expected actual
'
test_expect_success 'clean pack garbage with gc' '
test_when_finished "rm -f .git/objects/pack/fake*" &&
test_when_finished "rm -f .git/objects/pack/foo*" &&
>.git/objects/pack/foo.keep &&
>.git/objects/pack/foo.pack &&
>.git/objects/pack/fake.idx &&
>.git/objects/pack/fake2.keep &&
>.git/objects/pack/fake2.idx &&
>.git/objects/pack/fake3.keep &&
git gc &&
git count-objects -v 2>stderr &&
grep "^warning:" stderr | sort >actual &&
cat >expected <<\EOF &&
warning: no corresponding .idx or .pack: .git/objects/pack/fake3.keep
warning: no corresponding .idx: .git/objects/pack/foo.keep
warning: no corresponding .idx: .git/objects/pack/foo.pack
EOF
test_cmp expected actual
'
test_expect_success 'prune .git/shallow' '
oid=$(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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