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1#!/bin/sh
2#
9e5a86f2 3# Copyright (c) 2009, 2010, 2012, 2013 David Aguilar
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4#
5
6test_description='git-difftool
7
8Testing basic diff tool invocation
9'
10
11. ./test-lib.sh
12
13remove_config_vars()
14{
15 # Unset all config variables used by git-difftool
16 git config --unset diff.tool
4cefa495 17 git config --unset diff.guitool
f92f2038 18 git config --unset difftool.test-tool.cmd
a904392e 19 git config --unset difftool.prompt
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20 git config --unset merge.tool
21 git config --unset mergetool.test-tool.cmd
a88183f1 22 git config --unset mergetool.prompt
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23 return 0
24}
25
26restore_test_defaults()
27{
28 # Restores the test defaults used by several tests
29 remove_config_vars
30 unset GIT_DIFF_TOOL
a904392e 31 unset GIT_DIFFTOOL_PROMPT
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32 unset GIT_DIFFTOOL_NO_PROMPT
33 git config diff.tool test-tool &&
34 git config difftool.test-tool.cmd 'cat $LOCAL'
23218bbd 35 git config difftool.bogus-tool.cmd false
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36}
37
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38prompt_given()
39{
40 prompt="$1"
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41 test "$prompt" = "Launch 'test-tool' [Y/n]: branch"
42}
43
44stdin_contains()
45{
46 grep >/dev/null "$1"
47}
48
49stdin_doesnot_contain()
50{
51 ! stdin_contains "$1"
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52}
53
f92f2038 54# Create a file on master and change it on branch
2c4f3026 55test_expect_success PERL 'setup' '
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56 echo master >file &&
57 git add file &&
58 git commit -m "added file" &&
59
60 git checkout -b branch master &&
61 echo branch >file &&
62 git commit -a -m "branch changed file" &&
63 git checkout master
64'
65
66# Configure a custom difftool.<tool>.cmd and use it
2c4f3026 67test_expect_success PERL 'custom commands' '
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68 restore_test_defaults &&
69 git config difftool.test-tool.cmd "cat \$REMOTE" &&
70
71 diff=$(git difftool --no-prompt branch) &&
72 test "$diff" = "master" &&
73
74 restore_test_defaults &&
75 diff=$(git difftool --no-prompt branch) &&
76 test "$diff" = "branch"
77'
78
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79# Ensures that a custom difftool.<tool>.cmd overrides built-ins
80test_expect_success PERL 'custom commands override built-ins' '
81 restore_test_defaults &&
82 git config difftool.defaults.cmd "cat \$REMOTE" &&
83
84 diff=$(git difftool --tool defaults --no-prompt branch) &&
85 test "$diff" = "master" &&
86
87 git config --unset difftool.defaults.cmd
88'
89
f92f2038 90# Ensures that git-difftool ignores bogus --tool values
2c4f3026 91test_expect_success PERL 'difftool ignores bad --tool values' '
23218bbd 92 diff=$(git difftool --no-prompt --tool=bad-tool branch)
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93 test "$?" = 1 &&
94 test "$diff" = ""
95'
96
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97test_expect_success PERL 'difftool forwards arguments to diff' '
98 >for-diff &&
99 git add for-diff &&
100 echo changes>for-diff &&
101 git add for-diff &&
102 diff=$(git difftool --cached --no-prompt -- for-diff) &&
103 test "$diff" = "" &&
104 git reset -- for-diff &&
105 rm for-diff
106'
107
2c4f3026 108test_expect_success PERL 'difftool honors --gui' '
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109 git config merge.tool bogus-tool &&
110 git config diff.tool bogus-tool &&
111 git config diff.guitool test-tool &&
112
113 diff=$(git difftool --no-prompt --gui branch) &&
114 test "$diff" = "branch" &&
115
116 restore_test_defaults
117'
118
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119test_expect_success PERL 'difftool --gui last setting wins' '
120 git config diff.guitool bogus-tool &&
121 git difftool --no-prompt --gui --no-gui &&
122
123 git config merge.tool bogus-tool &&
124 git config diff.tool bogus-tool &&
125 git config diff.guitool test-tool &&
126 diff=$(git difftool --no-prompt --no-gui --gui branch) &&
127 test "$diff" = "branch" &&
128
129 restore_test_defaults
130'
131
2c4f3026 132test_expect_success PERL 'difftool --gui works without configured diff.guitool' '
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133 git config diff.tool test-tool &&
134
135 diff=$(git difftool --no-prompt --gui branch) &&
136 test "$diff" = "branch" &&
137
138 restore_test_defaults
139'
140
f92f2038 141# Specify the diff tool using $GIT_DIFF_TOOL
2c4f3026 142test_expect_success PERL 'GIT_DIFF_TOOL variable' '
bc0f35ca 143 test_might_fail git config --unset diff.tool &&
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144 GIT_DIFF_TOOL=test-tool &&
145 export GIT_DIFF_TOOL &&
146
147 diff=$(git difftool --no-prompt branch) &&
148 test "$diff" = "branch" &&
149
150 restore_test_defaults
151'
152
153# Test the $GIT_*_TOOL variables and ensure
154# that $GIT_DIFF_TOOL always wins unless --tool is specified
2c4f3026 155test_expect_success PERL 'GIT_DIFF_TOOL overrides' '
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156 git config diff.tool bogus-tool &&
157 git config merge.tool bogus-tool &&
158
f92f2038 159 GIT_DIFF_TOOL=test-tool &&
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160 export GIT_DIFF_TOOL &&
161
162 diff=$(git difftool --no-prompt branch) &&
163 test "$diff" = "branch" &&
164
165 GIT_DIFF_TOOL=bogus-tool &&
166 export GIT_DIFF_TOOL &&
167
168 diff=$(git difftool --no-prompt --tool=test-tool branch) &&
169 test "$diff" = "branch" &&
170
171 restore_test_defaults
172'
173
174# Test that we don't have to pass --no-prompt to difftool
175# when $GIT_DIFFTOOL_NO_PROMPT is true
2c4f3026 176test_expect_success PERL 'GIT_DIFFTOOL_NO_PROMPT variable' '
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177 GIT_DIFFTOOL_NO_PROMPT=true &&
178 export GIT_DIFFTOOL_NO_PROMPT &&
179
180 diff=$(git difftool branch) &&
181 test "$diff" = "branch" &&
182
183 restore_test_defaults
184'
185
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186# git-difftool supports the difftool.prompt variable.
187# Test that GIT_DIFFTOOL_PROMPT can override difftool.prompt = false
2c4f3026 188test_expect_success PERL 'GIT_DIFFTOOL_PROMPT variable' '
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189 git config difftool.prompt false &&
190 GIT_DIFFTOOL_PROMPT=true &&
191 export GIT_DIFFTOOL_PROMPT &&
192
3319df6f 193 prompt=$(echo | git difftool branch | tail -1) &&
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194 prompt_given "$prompt" &&
195
196 restore_test_defaults
197'
198
199# Test that we don't have to pass --no-prompt when difftool.prompt is false
2c4f3026 200test_expect_success PERL 'difftool.prompt config variable is false' '
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201 git config difftool.prompt false &&
202
203 diff=$(git difftool branch) &&
204 test "$diff" = "branch" &&
205
206 restore_test_defaults
207'
208
a88183f1 209# Test that we don't have to pass --no-prompt when mergetool.prompt is false
2c4f3026 210test_expect_success PERL 'difftool merge.prompt = false' '
bc0f35ca 211 test_might_fail git config --unset difftool.prompt &&
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212 git config mergetool.prompt false &&
213
214 diff=$(git difftool branch) &&
215 test "$diff" = "branch" &&
216
217 restore_test_defaults
218'
219
a904392e 220# Test that the -y flag can override difftool.prompt = true
2c4f3026 221test_expect_success PERL 'difftool.prompt can overridden with -y' '
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222 git config difftool.prompt true &&
223
224 diff=$(git difftool -y branch) &&
225 test "$diff" = "branch" &&
226
227 restore_test_defaults
228'
229
230# Test that the --prompt flag can override difftool.prompt = false
2c4f3026 231test_expect_success PERL 'difftool.prompt can overridden with --prompt' '
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232 git config difftool.prompt false &&
233
234 prompt=$(echo | git difftool --prompt branch | tail -1) &&
235 prompt_given "$prompt" &&
236
237 restore_test_defaults
238'
239
240# Test that the last flag passed on the command-line wins
2c4f3026 241test_expect_success PERL 'difftool last flag wins' '
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242 diff=$(git difftool --prompt --no-prompt branch) &&
243 test "$diff" = "branch" &&
244
245 restore_test_defaults &&
246
247 prompt=$(echo | git difftool --no-prompt --prompt branch | tail -1) &&
248 prompt_given "$prompt" &&
249
250 restore_test_defaults
251'
252
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253# git-difftool falls back to git-mergetool config variables
254# so test that behavior here
2c4f3026 255test_expect_success PERL 'difftool + mergetool config variables' '
bc0f35ca 256 remove_config_vars &&
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257 git config merge.tool test-tool &&
258 git config mergetool.test-tool.cmd "cat \$LOCAL" &&
259
260 diff=$(git difftool --no-prompt branch) &&
261 test "$diff" = "branch" &&
262
263 # set merge.tool to something bogus, diff.tool to test-tool
264 git config merge.tool bogus-tool &&
265 git config diff.tool test-tool &&
266
267 diff=$(git difftool --no-prompt branch) &&
268 test "$diff" = "branch" &&
269
270 restore_test_defaults
271'
272
2c4f3026 273test_expect_success PERL 'difftool.<tool>.path' '
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274 git config difftool.tkdiff.path echo &&
275 diff=$(git difftool --tool=tkdiff --no-prompt branch) &&
276 git config --unset difftool.tkdiff.path &&
277 lines=$(echo "$diff" | grep file | wc -l) &&
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278 test "$lines" -eq 1 &&
279
280 restore_test_defaults
281'
282
2c4f3026 283test_expect_success PERL 'difftool --extcmd=cat' '
1c6f5b52 284 diff=$(git difftool --no-prompt --extcmd=cat branch) &&
a9e11220 285 test "$diff" = branch"$LF"master
f47f1e2c 286'
1c6f5b52 287
2c4f3026 288test_expect_success PERL 'difftool --extcmd cat' '
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289 diff=$(git difftool --no-prompt --extcmd cat branch) &&
290 test "$diff" = branch"$LF"master
291'
1c6f5b52 292
2c4f3026 293test_expect_success PERL 'difftool -x cat' '
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294 diff=$(git difftool --no-prompt -x cat branch) &&
295 test "$diff" = branch"$LF"master
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296'
297
2c4f3026 298test_expect_success PERL 'difftool --extcmd echo arg1' '
bc0f35ca 299 diff=$(git difftool --no-prompt --extcmd sh\ -c\ \"echo\ \$1\" branch) &&
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300 test "$diff" = file
301'
1c6f5b52 302
2c4f3026 303test_expect_success PERL 'difftool --extcmd cat arg1' '
bc0f35ca 304 diff=$(git difftool --no-prompt --extcmd sh\ -c\ \"cat\ \$1\" branch) &&
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305 test "$diff" = master
306'
1c6f5b52 307
2c4f3026 308test_expect_success PERL 'difftool --extcmd cat arg2' '
bc0f35ca 309 diff=$(git difftool --no-prompt --extcmd sh\ -c\ \"cat\ \$2\" branch) &&
9f3d54d1 310 test "$diff" = branch
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311'
312
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313# Create a second file on master and a different version on branch
314test_expect_success PERL 'setup with 2 files different' '
315 echo m2 >file2 &&
316 git add file2 &&
317 git commit -m "added file2" &&
318
319 git checkout branch &&
320 echo br2 >file2 &&
321 git add file2 &&
322 git commit -a -m "branch changed file2" &&
323 git checkout master
324'
325
326test_expect_success PERL 'say no to the first file' '
15a31e78 327 diff=$( (echo n; echo) | git difftool -x cat branch ) &&
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328
329 echo "$diff" | stdin_contains m2 &&
330 echo "$diff" | stdin_contains br2 &&
331 echo "$diff" | stdin_doesnot_contain master &&
332 echo "$diff" | stdin_doesnot_contain branch
333'
334
335test_expect_success PERL 'say no to the second file' '
15a31e78 336 diff=$( (echo; echo n) | git difftool -x cat branch ) &&
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337
338 echo "$diff" | stdin_contains master &&
339 echo "$diff" | stdin_contains branch &&
340 echo "$diff" | stdin_doesnot_contain m2 &&
341 echo "$diff" | stdin_doesnot_contain br2
342'
343
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344test_expect_success PERL 'difftool --tool-help' '
345 tool_help=$(git difftool --tool-help) &&
346 echo "$tool_help" | stdin_contains tool
347'
348
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349test_expect_success PERL 'setup change in subdirectory' '
350 git checkout master &&
351 mkdir sub &&
352 echo master >sub/sub &&
353 git add sub/sub &&
354 git commit -m "added sub/sub" &&
355 echo test >>file &&
356 echo test >>sub/sub &&
357 git add . &&
358 git commit -m "modified both"
359'
360
361test_expect_success PERL 'difftool -d' '
362 diff=$(git difftool -d --extcmd ls branch) &&
363 echo "$diff" | stdin_contains sub &&
364 echo "$diff" | stdin_contains file
365'
366
367test_expect_success PERL 'difftool --dir-diff' '
368 diff=$(git difftool --dir-diff --extcmd ls branch) &&
369 echo "$diff" | stdin_contains sub &&
370 echo "$diff" | stdin_contains file
371'
372
373test_expect_success PERL 'difftool --dir-diff ignores --prompt' '
374 diff=$(git difftool --dir-diff --prompt --extcmd ls branch) &&
375 echo "$diff" | stdin_contains sub &&
376 echo "$diff" | stdin_contains file
377'
378
379test_expect_success PERL 'difftool --dir-diff from subdirectory' '
380 (
381 cd sub &&
382 diff=$(git difftool --dir-diff --extcmd ls branch) &&
383 echo "$diff" | stdin_contains sub &&
384 echo "$diff" | stdin_contains file
385 )
386'
387
f92f2038 388test_done