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1#!/bin/sh
2#
c8a5672e 3# Copyright (c) 2009, 2010 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 "$diff" = "branch"
77'
78
79# Ensures that git-difftool ignores bogus --tool values
2c4f3026 80test_expect_success PERL 'difftool ignores bad --tool values' '
23218bbd 81 diff=$(git difftool --no-prompt --tool=bad-tool branch)
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82 test "$?" = 1 &&
83 test "$diff" = ""
84'
85
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86test_expect_success PERL 'difftool forwards arguments to diff' '
87 >for-diff &&
88 git add for-diff &&
89 echo changes>for-diff &&
90 git add for-diff &&
91 diff=$(git difftool --cached --no-prompt -- for-diff) &&
92 test "$diff" = "" &&
93 git reset -- for-diff &&
94 rm for-diff
95'
96
2c4f3026 97test_expect_success PERL 'difftool honors --gui' '
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98 git config merge.tool bogus-tool &&
99 git config diff.tool bogus-tool &&
100 git config diff.guitool test-tool &&
101
102 diff=$(git difftool --no-prompt --gui branch) &&
103 test "$diff" = "branch" &&
104
105 restore_test_defaults
106'
107
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108test_expect_success PERL 'difftool --gui last setting wins' '
109 git config diff.guitool bogus-tool &&
110 git difftool --no-prompt --gui --no-gui &&
111
112 git config merge.tool bogus-tool &&
113 git config diff.tool bogus-tool &&
114 git config diff.guitool test-tool &&
115 diff=$(git difftool --no-prompt --no-gui --gui branch) &&
116 test "$diff" = "branch" &&
117
118 restore_test_defaults
119'
120
2c4f3026 121test_expect_success PERL 'difftool --gui works without configured diff.guitool' '
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122 git config diff.tool test-tool &&
123
124 diff=$(git difftool --no-prompt --gui branch) &&
125 test "$diff" = "branch" &&
126
127 restore_test_defaults
128'
129
f92f2038 130# Specify the diff tool using $GIT_DIFF_TOOL
2c4f3026 131test_expect_success PERL 'GIT_DIFF_TOOL variable' '
bc0f35ca 132 test_might_fail git config --unset diff.tool &&
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133 GIT_DIFF_TOOL=test-tool &&
134 export GIT_DIFF_TOOL &&
135
136 diff=$(git difftool --no-prompt branch) &&
137 test "$diff" = "branch" &&
138
139 restore_test_defaults
140'
141
142# Test the $GIT_*_TOOL variables and ensure
143# that $GIT_DIFF_TOOL always wins unless --tool is specified
2c4f3026 144test_expect_success PERL 'GIT_DIFF_TOOL overrides' '
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145 git config diff.tool bogus-tool &&
146 git config merge.tool bogus-tool &&
147
f92f2038 148 GIT_DIFF_TOOL=test-tool &&
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149 export GIT_DIFF_TOOL &&
150
151 diff=$(git difftool --no-prompt branch) &&
152 test "$diff" = "branch" &&
153
154 GIT_DIFF_TOOL=bogus-tool &&
155 export GIT_DIFF_TOOL &&
156
157 diff=$(git difftool --no-prompt --tool=test-tool branch) &&
158 test "$diff" = "branch" &&
159
160 restore_test_defaults
161'
162
163# Test that we don't have to pass --no-prompt to difftool
164# when $GIT_DIFFTOOL_NO_PROMPT is true
2c4f3026 165test_expect_success PERL 'GIT_DIFFTOOL_NO_PROMPT variable' '
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166 GIT_DIFFTOOL_NO_PROMPT=true &&
167 export GIT_DIFFTOOL_NO_PROMPT &&
168
169 diff=$(git difftool branch) &&
170 test "$diff" = "branch" &&
171
172 restore_test_defaults
173'
174
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175# git-difftool supports the difftool.prompt variable.
176# Test that GIT_DIFFTOOL_PROMPT can override difftool.prompt = false
2c4f3026 177test_expect_success PERL 'GIT_DIFFTOOL_PROMPT variable' '
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178 git config difftool.prompt false &&
179 GIT_DIFFTOOL_PROMPT=true &&
180 export GIT_DIFFTOOL_PROMPT &&
181
3319df6f 182 prompt=$(echo | git difftool branch | tail -1) &&
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183 prompt_given "$prompt" &&
184
185 restore_test_defaults
186'
187
188# Test that we don't have to pass --no-prompt when difftool.prompt is false
2c4f3026 189test_expect_success PERL 'difftool.prompt config variable is false' '
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190 git config difftool.prompt false &&
191
192 diff=$(git difftool branch) &&
193 test "$diff" = "branch" &&
194
195 restore_test_defaults
196'
197
a88183f1 198# Test that we don't have to pass --no-prompt when mergetool.prompt is false
2c4f3026 199test_expect_success PERL 'difftool merge.prompt = false' '
bc0f35ca 200 test_might_fail git config --unset difftool.prompt &&
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201 git config mergetool.prompt false &&
202
203 diff=$(git difftool branch) &&
204 test "$diff" = "branch" &&
205
206 restore_test_defaults
207'
208
a904392e 209# Test that the -y flag can override difftool.prompt = true
2c4f3026 210test_expect_success PERL 'difftool.prompt can overridden with -y' '
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211 git config difftool.prompt true &&
212
213 diff=$(git difftool -y branch) &&
214 test "$diff" = "branch" &&
215
216 restore_test_defaults
217'
218
219# Test that the --prompt flag can override difftool.prompt = false
2c4f3026 220test_expect_success PERL 'difftool.prompt can overridden with --prompt' '
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221 git config difftool.prompt false &&
222
223 prompt=$(echo | git difftool --prompt branch | tail -1) &&
224 prompt_given "$prompt" &&
225
226 restore_test_defaults
227'
228
229# Test that the last flag passed on the command-line wins
2c4f3026 230test_expect_success PERL 'difftool last flag wins' '
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231 diff=$(git difftool --prompt --no-prompt branch) &&
232 test "$diff" = "branch" &&
233
234 restore_test_defaults &&
235
236 prompt=$(echo | git difftool --no-prompt --prompt branch | tail -1) &&
237 prompt_given "$prompt" &&
238
239 restore_test_defaults
240'
241
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242# git-difftool falls back to git-mergetool config variables
243# so test that behavior here
2c4f3026 244test_expect_success PERL 'difftool + mergetool config variables' '
bc0f35ca 245 remove_config_vars &&
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246 git config merge.tool test-tool &&
247 git config mergetool.test-tool.cmd "cat \$LOCAL" &&
248
249 diff=$(git difftool --no-prompt branch) &&
250 test "$diff" = "branch" &&
251
252 # set merge.tool to something bogus, diff.tool to test-tool
253 git config merge.tool bogus-tool &&
254 git config diff.tool test-tool &&
255
256 diff=$(git difftool --no-prompt branch) &&
257 test "$diff" = "branch" &&
258
259 restore_test_defaults
260'
261
2c4f3026 262test_expect_success PERL 'difftool.<tool>.path' '
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263 git config difftool.tkdiff.path echo &&
264 diff=$(git difftool --tool=tkdiff --no-prompt branch) &&
265 git config --unset difftool.tkdiff.path &&
266 lines=$(echo "$diff" | grep file | wc -l) &&
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267 test "$lines" -eq 1 &&
268
269 restore_test_defaults
270'
271
2c4f3026 272test_expect_success PERL 'difftool --extcmd=cat' '
1c6f5b52 273 diff=$(git difftool --no-prompt --extcmd=cat branch) &&
a9e11220 274 test "$diff" = branch"$LF"master
f47f1e2c 275'
1c6f5b52 276
2c4f3026 277test_expect_success PERL 'difftool --extcmd cat' '
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278 diff=$(git difftool --no-prompt --extcmd cat branch) &&
279 test "$diff" = branch"$LF"master
280'
1c6f5b52 281
2c4f3026 282test_expect_success PERL 'difftool -x cat' '
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283 diff=$(git difftool --no-prompt -x cat branch) &&
284 test "$diff" = branch"$LF"master
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285'
286
2c4f3026 287test_expect_success PERL 'difftool --extcmd echo arg1' '
bc0f35ca 288 diff=$(git difftool --no-prompt --extcmd sh\ -c\ \"echo\ \$1\" branch) &&
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289 test "$diff" = file
290'
1c6f5b52 291
2c4f3026 292test_expect_success PERL 'difftool --extcmd cat arg1' '
bc0f35ca 293 diff=$(git difftool --no-prompt --extcmd sh\ -c\ \"cat\ \$1\" branch) &&
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294 test "$diff" = master
295'
1c6f5b52 296
2c4f3026 297test_expect_success PERL 'difftool --extcmd cat arg2' '
bc0f35ca 298 diff=$(git difftool --no-prompt --extcmd sh\ -c\ \"cat\ \$2\" branch) &&
9f3d54d1 299 test "$diff" = branch
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300'
301
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302# Create a second file on master and a different version on branch
303test_expect_success PERL 'setup with 2 files different' '
304 echo m2 >file2 &&
305 git add file2 &&
306 git commit -m "added file2" &&
307
308 git checkout branch &&
309 echo br2 >file2 &&
310 git add file2 &&
311 git commit -a -m "branch changed file2" &&
312 git checkout master
313'
314
315test_expect_success PERL 'say no to the first file' '
15a31e78 316 diff=$( (echo n; echo) | git difftool -x cat branch ) &&
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317
318 echo "$diff" | stdin_contains m2 &&
319 echo "$diff" | stdin_contains br2 &&
320 echo "$diff" | stdin_doesnot_contain master &&
321 echo "$diff" | stdin_doesnot_contain branch
322'
323
324test_expect_success PERL 'say no to the second file' '
15a31e78 325 diff=$( (echo; echo n) | git difftool -x cat branch ) &&
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326
327 echo "$diff" | stdin_contains master &&
328 echo "$diff" | stdin_contains branch &&
329 echo "$diff" | stdin_doesnot_contain m2 &&
330 echo "$diff" | stdin_doesnot_contain br2
331'
332
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333test_expect_success PERL 'difftool --tool-help' '
334 tool_help=$(git difftool --tool-help) &&
335 echo "$tool_help" | stdin_contains tool
336'
337
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338test_expect_success PERL 'setup change in subdirectory' '
339 git checkout master &&
340 mkdir sub &&
341 echo master >sub/sub &&
342 git add sub/sub &&
343 git commit -m "added sub/sub" &&
344 echo test >>file &&
345 echo test >>sub/sub &&
346 git add . &&
347 git commit -m "modified both"
348'
349
350test_expect_success PERL 'difftool -d' '
351 diff=$(git difftool -d --extcmd ls branch) &&
352 echo "$diff" | stdin_contains sub &&
353 echo "$diff" | stdin_contains file
354'
355
356test_expect_success PERL 'difftool --dir-diff' '
357 diff=$(git difftool --dir-diff --extcmd ls branch) &&
358 echo "$diff" | stdin_contains sub &&
359 echo "$diff" | stdin_contains file
360'
361
362test_expect_success PERL 'difftool --dir-diff ignores --prompt' '
363 diff=$(git difftool --dir-diff --prompt --extcmd ls branch) &&
364 echo "$diff" | stdin_contains sub &&
365 echo "$diff" | stdin_contains file
366'
367
368test_expect_success PERL 'difftool --dir-diff from subdirectory' '
369 (
370 cd sub &&
371 diff=$(git difftool --dir-diff --extcmd ls branch) &&
372 echo "$diff" | stdin_contains sub &&
373 echo "$diff" | stdin_contains file
374 )
375'
376
f92f2038 377test_done