3 # This test covers the handling of objects which might have old
4 # mtimes in the filesystem (because they were used previously)
5 # and are just now becoming referenced again.
7 # We're going to do two things that are a little bit "fake" to
8 # help make our simulation easier:
10 # 1. We'll turn off reflogs. You can still run into
11 # problems with reflogs on, but your objects
12 # don't get pruned until both the reflog expiration
13 # has passed on their references, _and_ they are out
14 # of prune's expiration period. Dropping reflogs
15 # means we only have to deal with one variable in our tests,
16 # but the results generalize.
18 # 2. We'll use a temporary index file to create our
19 # works-in-progress. Most workflows would mention
20 # referenced objects in the index, which prune takes
21 # into account. However, many operations don't. For
22 # example, a partial commit with "git commit foo"
23 # will use a temporary index. Or they may not need
24 # an index at all (e.g., creating a new commit
25 # to refer to an existing tree).
27 test_description='check pruning of dependent objects'
28 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
29 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
33 # We care about reachability, so we do not want to use
34 # the normal test_commit, which creates extra tags.
46 if test -n "$repack"; then
51 for repack in '' true; do
52 title=${repack:+repack}
55 test_expect_success "make repo completely empty ($title)" '
60 test_expect_success "disable reflogs ($title)" '
61 git config core.logallrefupdates false &&
62 git reflog expire --expire=all --all
65 test_expect_success "setup basic history ($title)" '
69 test_expect_success "create and abandon some objects ($title)" '
70 git checkout -b experiment &&
74 git branch -D experiment
77 test_expect_success "simulate time passing ($title)" '
78 test-tool chmtime --get -86400 $(find .git/objects -type f)
81 test_expect_success "start writing new commit with old blob ($title)" '
83 GIT_INDEX_FILE=index.tmp &&
84 export GIT_INDEX_FILE &&
92 test_expect_success "simultaneous gc ($title)" '
93 git gc --prune=12.hours.ago
96 test_expect_success "finish writing out commit ($title)" '
97 commit=$(echo foo | git commit-tree -p HEAD $tree) &&
98 git update-ref HEAD $commit
101 # "abandon" blob should have been rescued by reference from new tree
102 test_expect_success "repository passes fsck ($title)" '
106 test_expect_success "abandon objects again ($title)" '
107 git reset --hard HEAD^ &&
108 test-tool chmtime --get -86400 $(find .git/objects -type f)
111 test_expect_success "start writing new commit with same tree ($title)" '
113 GIT_INDEX_FILE=index.tmp &&
114 export GIT_INDEX_FILE &&
115 git read-tree HEAD &&
122 test_expect_success "simultaneous gc ($title)" '
123 git gc --prune=12.hours.ago
126 # tree should have been refreshed by write-tree
127 test_expect_success "finish writing out commit ($title)" '
128 commit=$(echo foo | git commit-tree -p HEAD $tree) &&
129 git update-ref HEAD $commit
133 test_expect_success 'do not complain about existing broken links (commit)' '
134 cat >broken-commit <<-EOF &&
136 parent $(test_oid 002)
137 author whatever <whatever@example.com> 1234 -0000
138 committer whatever <whatever@example.com> 1234 -0000
142 commit=$(git hash-object -t commit -w broken-commit) &&
143 git gc -q 2>stderr &&
144 verbose git cat-file -e $commit &&
145 test_must_be_empty stderr
148 test_expect_success 'do not complain about existing broken links (tree)' '
149 cat >broken-tree <<-EOF &&
150 100644 blob $(test_oid 003) foo
152 tree=$(git mktree --missing <broken-tree) &&
153 git gc -q 2>stderr &&
154 git cat-file -e $tree &&
155 test_must_be_empty stderr
158 test_expect_success 'do not complain about existing broken links (tag)' '
159 cat >broken-tag <<-EOF &&
160 object $(test_oid 004)
163 tagger whatever <whatever@example.com> 1234 -0000
167 tag=$(git hash-object -t tag -w broken-tag) &&
168 git gc -q 2>stderr &&
169 git cat-file -e $tag &&
170 test_must_be_empty stderr