3 test_description="Test whether cache-tree is properly updated
5 Tests whether various commands properly update and/or rewrite the
11 test-tool dump-cache-tree | sed -e '/#(ref)/d' >actual &&
12 sed "s/$OID_REGEX/SHA/" <actual >filtered &&
13 test_cmp "$1" filtered
16 # We don't bother with actually checking the SHA1:
17 # test-tool dump-cache-tree already verifies that all existing data is
19 generate_expected_cache_tree_rec () {
22 # ls-files might have foo/bar, foo/bar/baz, and foo/bar/quux
23 # We want to count only foo because it's the only direct child
24 git ls-files >files &&
25 subtrees=$(grep / files|cut -d / -f 1|uniq) &&
26 subtree_count=$(echo "$subtrees"|awk -v c=0 '$1 != "" {++c} END {print c}') &&
27 entries=$(wc -l <files) &&
28 printf "SHA $dir (%d entries, %d subtrees)\n" "$entries" "$subtree_count" &&
29 for subtree in $subtrees
32 generate_expected_cache_tree_rec "$dir$subtree" "$dir" || return 1
38 generate_expected_cache_tree () {
40 generate_expected_cache_tree_rec
45 generate_expected_cache_tree >expect &&
49 test_invalid_cache_tree () {
50 printf "invalid %s ()\n" "" "$@" >expect &&
51 test-tool dump-cache-tree |
52 sed -n -e "s/[0-9]* subtrees//" -e '/#(ref)/d' -e '/^invalid /p' >actual &&
53 test_cmp expect actual
56 test_no_cache_tree () {
61 test_expect_success 'initial commit has cache-tree' '
66 test_expect_success 'read-tree HEAD establishes cache-tree' '
71 test_expect_success 'git-add invalidates cache-tree' '
72 test_when_finished "git reset --hard; git read-tree HEAD" &&
73 echo "I changed this file" >foo &&
75 test_invalid_cache_tree
78 test_expect_success 'git-add in subdir invalidates cache-tree' '
79 test_when_finished "git reset --hard; git read-tree HEAD" &&
81 echo "I changed this file" >dirx/foo &&
83 test_invalid_cache_tree
87 SHA (3 entries, 2 subtrees)
88 SHA dir1/ (1 entries, 0 subtrees)
89 SHA dir2/ (1 entries, 0 subtrees)
94 invalid dir1/ (0 subtrees)
95 SHA dir2/ (1 entries, 0 subtrees)
98 test_expect_success 'git-add in subdir does not invalidate sibling cache-tree' '
99 git tag no-children &&
100 test_when_finished "git reset --hard no-children; git read-tree HEAD" &&
102 test_commit dir1/a &&
103 test_commit dir2/b &&
104 echo "I changed this file" >dir1/a &&
105 cmp_cache_tree before &&
106 echo "I changed this file" >dir1/a &&
108 cmp_cache_tree expect
111 test_expect_success 'update-index invalidates cache-tree' '
112 test_when_finished "git reset --hard; git read-tree HEAD" &&
113 echo "I changed this file" >foo &&
114 git update-index --add foo &&
115 test_invalid_cache_tree
118 test_expect_success 'write-tree establishes cache-tree' '
119 test-tool scrap-cache-tree &&
124 test_expect_success 'test-tool scrap-cache-tree works' '
125 git read-tree HEAD &&
126 test-tool scrap-cache-tree &&
130 test_expect_success 'second commit has cache-tree' '
135 test_expect_success PERL 'commit --interactive gives cache-tree on partial commit' '
136 cat <<-\EOT >foo.c &&
147 test_invalid_cache_tree &&
148 git commit -m "add a file" &&
150 cat <<-\EOT >foo.c &&
160 test_write_lines p 1 "" s n y q |
161 git commit --interactive -m foo &&
165 test_expect_success PERL 'commit -p with shrinking cache-tree' '
166 mkdir -p deep/very-long-subdir &&
167 echo content >deep/very-long-subdir/file &&
172 before=$(wc -c <.git/index) &&
173 git commit -m delete -p &&
174 after=$(wc -c <.git/index) &&
176 # double check that the index shrank
177 test $before -gt $after &&
179 # and that our index was not corrupted
183 test_expect_success 'commit in child dir has cache-tree' '
186 git add dir/child.t &&
187 git commit -m dir/child.t &&
191 test_expect_success 'reset --hard gives cache-tree' '
192 test-tool scrap-cache-tree &&
197 test_expect_success 'reset --hard without index gives cache-tree' '
203 test_expect_success 'checkout gives cache-tree' '
205 git checkout HEAD^ &&
209 test_expect_success 'checkout -b gives cache-tree' '
210 git checkout current &&
211 git checkout -b prev HEAD^ &&
215 test_expect_success 'checkout -B gives cache-tree' '
216 git checkout current &&
217 git checkout -B prev HEAD^ &&
221 test_expect_success 'merge --ff-only maintains cache-tree' '
222 git checkout current &&
223 git checkout -b changes &&
224 test_commit llamas &&
225 test_commit pachyderm &&
227 git checkout current &&
229 git merge --ff-only changes &&
233 test_expect_success 'merge maintains cache-tree' '
234 git checkout current &&
235 git checkout -b changes2 &&
236 test_commit alpacas &&
238 git checkout current &&
239 test_commit struthio &&
241 git merge changes2 &&
245 test_expect_success 'partial commit gives cache-tree' '
246 git checkout -b partial no-children &&
249 echo "some change" >one.t &&
251 echo "some other change" >two.t &&
252 git commit two.t -m partial &&
256 test_expect_success 'no phantom error when switching trees' '
259 git add newdir/one &&
260 git checkout 2>errors &&
261 test_must_be_empty errors
264 test_expect_success 'switching trees does not invalidate shared index' '
266 sane_unset GIT_TEST_SPLIT_INDEX &&
267 git update-index --split-index &&
270 test-tool dump-split-index .git/index | grep -v ^own >before &&
271 git commit -m "as-is" &&
272 test-tool dump-split-index .git/index | grep -v ^own >after &&
273 test_cmp before after