| #!/bin/sh |
| # |
| # This test covers the handling of objects which might have old |
| # mtimes in the filesystem (because they were used previously) |
| # and are just now becoming referenced again. |
| # |
| # We're going to do two things that are a little bit "fake" to |
| # help make our simulation easier: |
| # |
| # 1. We'll turn off reflogs. You can still run into |
| # problems with reflogs on, but your objects |
| # don't get pruned until both the reflog expiration |
| # has passed on their references, _and_ they are out |
| # of prune's expiration period. Dropping reflogs |
| # means we only have to deal with one variable in our tests, |
| # but the results generalize. |
| # |
| # 2. We'll use a temporary index file to create our |
| # works-in-progress. Most workflows would mention |
| # referenced objects in the index, which prune takes |
| # into account. However, many operations don't. For |
| # example, a partial commit with "git commit foo" |
| # will use a temporary index. Or they may not need |
| # an index at all (e.g., creating a new commit |
| # to refer to an existing tree). |
| |
| test_description='check pruning of dependent objects' |
| GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main |
| export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME |
| |
| . ./test-lib.sh |
| |
| # We care about reachability, so we do not want to use |
| # the normal test_commit, which creates extra tags. |
| add () { |
| echo "$1" >"$1" && |
| git add "$1" |
| } |
| commit () { |
| test_tick && |
| add "$1" && |
| git commit -m "$1" |
| } |
| |
| maybe_repack () { |
| case "$title" in |
| loose) |
| : skip repack |
| ;; |
| repack) |
| git repack -ad |
| ;; |
| bitmap) |
| git repack -adb |
| ;; |
| *) |
| echo >&2 "unknown test type in maybe_repack" |
| return 1 |
| ;; |
| esac |
| } |
| |
| for title in loose repack bitmap |
| do |
| test_expect_success "make repo completely empty ($title)" ' |
| rm -rf .git && |
| git init |
| ' |
| |
| test_expect_success "disable reflogs ($title)" ' |
| git config core.logallrefupdates false && |
| git reflog expire --expire=all --all |
| ' |
| |
| test_expect_success "setup basic history ($title)" ' |
| commit base |
| ' |
| |
| test_expect_success "create and abandon some objects ($title)" ' |
| git checkout -b experiment && |
| commit abandon && |
| maybe_repack && |
| git checkout main && |
| git branch -D experiment |
| ' |
| |
| test_expect_success "simulate time passing ($title)" ' |
| test-tool chmtime --get -86400 $(find .git/objects -type f) |
| ' |
| |
| test_expect_success "start writing new commit with old blob ($title)" ' |
| tree=$( |
| GIT_INDEX_FILE=index.tmp && |
| export GIT_INDEX_FILE && |
| git read-tree HEAD && |
| add unrelated && |
| add abandon && |
| git write-tree |
| ) |
| ' |
| |
| test_expect_success "simultaneous gc ($title)" ' |
| git gc --prune=12.hours.ago |
| ' |
| |
| test_expect_success "finish writing out commit ($title)" ' |
| commit=$(echo foo | git commit-tree -p HEAD $tree) && |
| git update-ref HEAD $commit |
| ' |
| |
| # "abandon" blob should have been rescued by reference from new tree |
| test_expect_success "repository passes fsck ($title)" ' |
| git fsck |
| ' |
| |
| test_expect_success "abandon objects again ($title)" ' |
| git reset --hard HEAD^ && |
| test-tool chmtime --get -86400 $(find .git/objects -type f) |
| ' |
| |
| test_expect_success "start writing new commit with same tree ($title)" ' |
| tree=$( |
| GIT_INDEX_FILE=index.tmp && |
| export GIT_INDEX_FILE && |
| git read-tree HEAD && |
| add abandon && |
| add unrelated && |
| git write-tree |
| ) |
| ' |
| |
| test_expect_success "simultaneous gc ($title)" ' |
| git gc --prune=12.hours.ago |
| ' |
| |
| # tree should have been refreshed by write-tree |
| test_expect_success "finish writing out commit ($title)" ' |
| commit=$(echo foo | git commit-tree -p HEAD $tree) && |
| git update-ref HEAD $commit |
| ' |
| done |
| |
| test_expect_success 'do not complain about existing broken links (commit)' ' |
| cat >broken-commit <<-EOF && |
| tree $(test_oid 001) |
| parent $(test_oid 002) |
| author whatever <whatever@example.com> 1234 -0000 |
| committer whatever <whatever@example.com> 1234 -0000 |
| |
| some message |
| EOF |
| commit=$(git hash-object -t commit -w broken-commit) && |
| git gc -q 2>stderr && |
| verbose git cat-file -e $commit && |
| test_must_be_empty stderr |
| ' |
| |
| test_expect_success 'do not complain about existing broken links (tree)' ' |
| cat >broken-tree <<-EOF && |
| 100644 blob $(test_oid 003) foo |
| EOF |
| tree=$(git mktree --missing <broken-tree) && |
| git gc -q 2>stderr && |
| git cat-file -e $tree && |
| test_must_be_empty stderr |
| ' |
| |
| test_expect_success 'do not complain about existing broken links (tag)' ' |
| cat >broken-tag <<-EOF && |
| object $(test_oid 004) |
| type commit |
| tag broken |
| tagger whatever <whatever@example.com> 1234 -0000 |
| |
| this is a broken tag |
| EOF |
| tag=$(git hash-object -t tag -w broken-tag) && |
| git gc -q 2>stderr && |
| git cat-file -e $tag && |
| test_must_be_empty stderr |
| ' |
| |
| test_done |