1#!/bin/sh
2
3test_description="Test whether cache-tree is properly updated
4
5Tests whether various commands properly update and/or rewrite the
6cache-tree extension.
7"
8 . ./test-lib.sh
9
10cmp_cache_tree () {
11 test-tool dump-cache-tree | sed -e '/#(ref)/d' >actual &&
12 sed "s/$OID_REGEX/SHA/" <actual >filtered &&
13 test_cmp "$1" filtered
14}
15
16# We don't bother with actually checking the SHA1:
17# test-tool dump-cache-tree already verifies that all existing data is
18# correct.
19generate_expected_cache_tree_rec () {
20 dir="$1${1:+/}" &&
21 parent="$2" &&
22 # ls-files might have foo/bar, foo/bar/baz, and foo/bar/quux
23 # We want to count only foo because it's the only direct child
24 subtrees=$(git ls-files|grep /|cut -d / -f 1|uniq) &&
25 subtree_count=$(echo "$subtrees"|awk -v c=0 '$1 != "" {++c} END {print c}') &&
26 entries=$(git ls-files|wc -l) &&
27 printf "SHA $dir (%d entries, %d subtrees)\n" "$entries" "$subtree_count" &&
28 for subtree in $subtrees
29 do
30 cd "$subtree"
31 generate_expected_cache_tree_rec "$dir$subtree" "$dir" || return 1
32 cd ..
33 done &&
34 dir=$parent
35}
36
37generate_expected_cache_tree () {
38 (
39 generate_expected_cache_tree_rec
40 )
41}
42
43test_cache_tree () {
44 generate_expected_cache_tree >expect &&
45 cmp_cache_tree expect
46}
47
48test_invalid_cache_tree () {
49 printf "invalid %s ()\n" "" "$@" >expect &&
50 test-tool dump-cache-tree |
51 sed -n -e "s/[0-9]* subtrees//" -e '/#(ref)/d' -e '/^invalid /p' >actual &&
52 test_cmp expect actual
53}
54
55test_no_cache_tree () {
56 : >expect &&
57 cmp_cache_tree expect
58}
59
60test_expect_success 'initial commit has cache-tree' '
61 test_commit foo &&
62 test_cache_tree
63'
64
65test_expect_success 'read-tree HEAD establishes cache-tree' '
66 git read-tree HEAD &&
67 test_cache_tree
68'
69
70test_expect_success 'git-add invalidates cache-tree' '
71 test_when_finished "git reset --hard; git read-tree HEAD" &&
72 echo "I changed this file" >foo &&
73 git add foo &&
74 test_invalid_cache_tree
75'
76
77test_expect_success 'git-add in subdir invalidates cache-tree' '
78 test_when_finished "git reset --hard; git read-tree HEAD" &&
79 mkdir dirx &&
80 echo "I changed this file" >dirx/foo &&
81 git add dirx/foo &&
82 test_invalid_cache_tree
83'
84
85cat >before <<\EOF
86SHA (3 entries, 2 subtrees)
87SHA dir1/ (1 entries, 0 subtrees)
88SHA dir2/ (1 entries, 0 subtrees)
89EOF
90
91cat >expect <<\EOF
92invalid (2 subtrees)
93invalid dir1/ (0 subtrees)
94SHA dir2/ (1 entries, 0 subtrees)
95EOF
96
97test_expect_success 'git-add in subdir does not invalidate sibling cache-tree' '
98 git tag no-children &&
99 test_when_finished "git reset --hard no-children; git read-tree HEAD" &&
100 mkdir dir1 dir2 &&
101 test_commit dir1/a &&
102 test_commit dir2/b &&
103 echo "I changed this file" >dir1/a &&
104 cmp_cache_tree before &&
105 echo "I changed this file" >dir1/a &&
106 git add dir1/a &&
107 cmp_cache_tree expect
108'
109
110test_expect_success 'update-index invalidates cache-tree' '
111 test_when_finished "git reset --hard; git read-tree HEAD" &&
112 echo "I changed this file" >foo &&
113 git update-index --add foo &&
114 test_invalid_cache_tree
115'
116
117test_expect_success 'write-tree establishes cache-tree' '
118 test-tool scrap-cache-tree &&
119 git write-tree &&
120 test_cache_tree
121'
122
123test_expect_success 'test-tool scrap-cache-tree works' '
124 git read-tree HEAD &&
125 test-tool scrap-cache-tree &&
126 test_no_cache_tree
127'
128
129test_expect_success 'second commit has cache-tree' '
130 test_commit bar &&
131 test_cache_tree
132'
133
134test_expect_success PERL 'commit --interactive gives cache-tree on partial commit' '
135 cat <<-\EOT >foo.c &&
136 int foo()
137 {
138 return 42;
139 }
140 int bar()
141 {
142 return 42;
143 }
144 EOT
145 git add foo.c &&
146 test_invalid_cache_tree &&
147 git commit -m "add a file" &&
148 test_cache_tree &&
149 cat <<-\EOT >foo.c &&
150 int foo()
151 {
152 return 43;
153 }
154 int bar()
155 {
156 return 44;
157 }
158 EOT
159 test_write_lines p 1 "" s n y q |
160 git commit --interactive -m foo &&
161 test_cache_tree
162'
163
164test_expect_success 'commit in child dir has cache-tree' '
165 mkdir dir &&
166 >dir/child.t &&
167 git add dir/child.t &&
168 git commit -m dir/child.t &&
169 test_cache_tree
170'
171
172test_expect_success 'reset --hard gives cache-tree' '
173 test-tool scrap-cache-tree &&
174 git reset --hard &&
175 test_cache_tree
176'
177
178test_expect_success 'reset --hard without index gives cache-tree' '
179 rm -f .git/index &&
180 git reset --hard &&
181 test_cache_tree
182'
183
184test_expect_success 'checkout gives cache-tree' '
185 git tag current &&
186 git checkout HEAD^ &&
187 test_cache_tree
188'
189
190test_expect_success 'checkout -b gives cache-tree' '
191 git checkout current &&
192 git checkout -b prev HEAD^ &&
193 test_cache_tree
194'
195
196test_expect_success 'checkout -B gives cache-tree' '
197 git checkout current &&
198 git checkout -B prev HEAD^ &&
199 test_cache_tree
200'
201
202test_expect_success 'merge --ff-only maintains cache-tree' '
203 git checkout current &&
204 git checkout -b changes &&
205 test_commit llamas &&
206 test_commit pachyderm &&
207 test_cache_tree &&
208 git checkout current &&
209 test_cache_tree &&
210 git merge --ff-only changes &&
211 test_cache_tree
212'
213
214test_expect_success 'merge maintains cache-tree' '
215 git checkout current &&
216 git checkout -b changes2 &&
217 test_commit alpacas &&
218 test_cache_tree &&
219 git checkout current &&
220 test_commit struthio &&
221 test_cache_tree &&
222 git merge changes2 &&
223 test_cache_tree
224'
225
226test_expect_success 'partial commit gives cache-tree' '
227 git checkout -b partial no-children &&
228 test_commit one &&
229 test_commit two &&
230 echo "some change" >one.t &&
231 git add one.t &&
232 echo "some other change" >two.t &&
233 git commit two.t -m partial &&
234 test_cache_tree
235'
236
237test_expect_success 'no phantom error when switching trees' '
238 mkdir newdir &&
239 >newdir/one &&
240 git add newdir/one &&
241 git checkout 2>errors &&
242 test_must_be_empty errors
243'
244
245test_expect_success 'switching trees does not invalidate shared index' '
246 git update-index --split-index &&
247 >split &&
248 git add split &&
249 test-tool dump-split-index .git/index | grep -v ^own >before &&
250 git commit -m "as-is" &&
251 test-tool dump-split-index .git/index | grep -v ^own >after &&
252 test_cmp before after
253'
254
255test_done