wt-status: use settings from git_diff_ui_config
[git/git.git] / t / t4001-diff-rename.sh
1 #!/bin/sh
2 #
3 # Copyright (c) 2005 Junio C Hamano
4 #
5
6 test_description='Test rename detection in diff engine.
7
8 '
9 . ./test-lib.sh
10 . "$TEST_DIRECTORY"/diff-lib.sh
11
12 test_expect_success 'setup' '
13 cat >path0 <<-\EOF &&
14 Line 1
15 Line 2
16 Line 3
17 Line 4
18 Line 5
19 Line 6
20 Line 7
21 Line 8
22 Line 9
23 Line 10
24 line 11
25 Line 12
26 Line 13
27 Line 14
28 Line 15
29 EOF
30 cat >expected <<-\EOF &&
31 diff --git a/path0 b/path1
32 rename from path0
33 rename to path1
34 --- a/path0
35 +++ b/path1
36 @@ -8,7 +8,7 @@ Line 7
37 Line 8
38 Line 9
39 Line 10
40 -line 11
41 +Line 11
42 Line 12
43 Line 13
44 Line 14
45 EOF
46 cat >no-rename <<-\EOF
47 diff --git a/path0 b/path0
48 deleted file mode 100644
49 index fdbec44..0000000
50 --- a/path0
51 +++ /dev/null
52 @@ -1,15 +0,0 @@
53 -Line 1
54 -Line 2
55 -Line 3
56 -Line 4
57 -Line 5
58 -Line 6
59 -Line 7
60 -Line 8
61 -Line 9
62 -Line 10
63 -line 11
64 -Line 12
65 -Line 13
66 -Line 14
67 -Line 15
68 diff --git a/path1 b/path1
69 new file mode 100644
70 index 0000000..752c50e
71 --- /dev/null
72 +++ b/path1
73 @@ -0,0 +1,15 @@
74 +Line 1
75 +Line 2
76 +Line 3
77 +Line 4
78 +Line 5
79 +Line 6
80 +Line 7
81 +Line 8
82 +Line 9
83 +Line 10
84 +Line 11
85 +Line 12
86 +Line 13
87 +Line 14
88 +Line 15
89 EOF
90 '
91
92 test_expect_success \
93 'update-index --add a file.' \
94 'git update-index --add path0'
95
96 test_expect_success \
97 'write that tree.' \
98 'tree=$(git write-tree) && echo $tree'
99
100 sed -e 's/line/Line/' <path0 >path1
101 rm -f path0
102 test_expect_success \
103 'renamed and edited the file.' \
104 'git update-index --add --remove path0 path1'
105
106 test_expect_success \
107 'git diff-index -p -M after rename and editing.' \
108 'git diff-index -p -M $tree >current'
109
110
111 test_expect_success \
112 'validate the output.' \
113 'compare_diff_patch current expected'
114
115 test_expect_success 'test diff.renames=true' '
116 git -c diff.renames=true diff --cached $tree >current &&
117 compare_diff_patch current expected
118 '
119
120 test_expect_success 'test diff.renames=false' '
121 git -c diff.renames=false diff --cached $tree >current &&
122 compare_diff_patch current no-rename
123 '
124
125 test_expect_success 'test diff.renames unset' '
126 git diff --cached $tree >current &&
127 compare_diff_patch current expected
128 '
129
130 test_expect_success 'favour same basenames over different ones' '
131 cp path1 another-path &&
132 git add another-path &&
133 git commit -m 1 &&
134 git rm path1 &&
135 mkdir subdir &&
136 git mv another-path subdir/path1 &&
137 git status >out &&
138 test_i18ngrep "renamed: .*path1 -> subdir/path1" out
139 '
140
141 test_expect_success 'test diff.renames=true for git status' '
142 git -c diff.renames=true status >out &&
143 test_i18ngrep "renamed: .*path1 -> subdir/path1" out
144 '
145
146 test_expect_success 'test diff.renames=false for git status' '
147 git -c diff.renames=false status >out &&
148 test_i18ngrep ! "renamed: .*path1 -> subdir/path1" out &&
149 test_i18ngrep "new file: .*subdir/path1" out &&
150 test_i18ngrep "deleted: .*[^/]path1" out
151 '
152
153 test_expect_success 'favour same basenames even with minor differences' '
154 git show HEAD:path1 | sed "s/15/16/" > subdir/path1 &&
155 git status >out &&
156 test_i18ngrep "renamed: .*path1 -> subdir/path1" out
157 '
158
159 test_expect_success 'two files with same basename and same content' '
160 git reset --hard &&
161 mkdir -p dir/A dir/B &&
162 cp path1 dir/A/file &&
163 cp path1 dir/B/file &&
164 git add dir &&
165 git commit -m 2 &&
166 git mv dir other-dir &&
167 git status >out &&
168 test_i18ngrep "renamed: .*dir/A/file -> other-dir/A/file" out
169 '
170
171 test_expect_success 'setup for many rename source candidates' '
172 git reset --hard &&
173 for i in 0 1 2 3 4 5 6 7 8 9;
174 do
175 for j in 0 1 2 3 4 5 6 7 8 9;
176 do
177 echo "$i$j" >"path$i$j"
178 done
179 done &&
180 git add "path??" &&
181 test_tick &&
182 git commit -m "hundred" &&
183 (cat path1; echo new) >new-path &&
184 echo old >>path1 &&
185 git add new-path path1 &&
186 git diff -l 4 -C -C --cached --name-status >actual 2>actual.err &&
187 sed -e "s/^\([CM]\)[0-9]* /\1 /" actual >actual.munged &&
188 cat >expect <<-EOF &&
189 C path1 new-path
190 M path1
191 EOF
192 test_cmp expect actual.munged &&
193 grep warning actual.err
194 '
195
196 test_expect_success 'rename pretty print with nothing in common' '
197 mkdir -p a/b/ &&
198 : >a/b/c &&
199 git add a/b/c &&
200 git commit -m "create a/b/c" &&
201 mkdir -p c/b/ &&
202 git mv a/b/c c/b/a &&
203 git commit -m "a/b/c -> c/b/a" &&
204 git diff -M --summary HEAD^ HEAD >output &&
205 test_i18ngrep " a/b/c => c/b/a " output &&
206 git diff -M --stat HEAD^ HEAD >output &&
207 test_i18ngrep " a/b/c => c/b/a " output
208 '
209
210 test_expect_success 'rename pretty print with common prefix' '
211 mkdir -p c/d &&
212 git mv c/b/a c/d/e &&
213 git commit -m "c/b/a -> c/d/e" &&
214 git diff -M --summary HEAD^ HEAD >output &&
215 test_i18ngrep " c/{b/a => d/e} " output &&
216 git diff -M --stat HEAD^ HEAD >output &&
217 test_i18ngrep " c/{b/a => d/e} " output
218 '
219
220 test_expect_success 'rename pretty print with common suffix' '
221 mkdir d &&
222 git mv c/d/e d/e &&
223 git commit -m "c/d/e -> d/e" &&
224 git diff -M --summary HEAD^ HEAD >output &&
225 test_i18ngrep " {c/d => d}/e " output &&
226 git diff -M --stat HEAD^ HEAD >output &&
227 test_i18ngrep " {c/d => d}/e " output
228 '
229
230 test_expect_success 'rename pretty print with common prefix and suffix' '
231 mkdir d/f &&
232 git mv d/e d/f/e &&
233 git commit -m "d/e -> d/f/e" &&
234 git diff -M --summary HEAD^ HEAD >output &&
235 test_i18ngrep " d/{ => f}/e " output &&
236 git diff -M --stat HEAD^ HEAD >output &&
237 test_i18ngrep " d/{ => f}/e " output
238 '
239
240 test_expect_success 'rename pretty print common prefix and suffix overlap' '
241 mkdir d/f/f &&
242 git mv d/f/e d/f/f/e &&
243 git commit -m "d/f/e d/f/f/e" &&
244 git diff -M --summary HEAD^ HEAD >output &&
245 test_i18ngrep " d/f/{ => f}/e " output &&
246 git diff -M --stat HEAD^ HEAD >output &&
247 test_i18ngrep " d/f/{ => f}/e " output
248 '
249
250 test_expect_success 'diff-tree -l0 defaults to a big rename limit, not zero' '
251 test_write_lines line1 line2 line3 >myfile &&
252 git add myfile &&
253 git commit -m x &&
254
255 test_write_lines line1 line2 line4 >myotherfile &&
256 git rm myfile &&
257 git add myotherfile &&
258 git commit -m x &&
259
260 git diff-tree -M -l0 HEAD HEAD^ >actual &&
261 # Verify that a rename from myotherfile to myfile was detected
262 grep "myotherfile.*myfile" actual
263 '
264
265 test_done