git --paginate: do not commit pager choice too early
[git/git.git] / t / t7006-pager.sh
CommitLineData
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1#!/bin/sh
2
3test_description='Test automatic use of a pager.'
4
5. ./test-lib.sh
6
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7cleanup_fail() {
8 echo >&2 cleanup failed
9 (exit 1)
10}
11
2d3ca216 12test_expect_success 'set up terminal for tests' '
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13 rm -f stdout_is_tty ||
14 cleanup_fail &&
15
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16 if test -t 1
17 then
fdf1bc48 18 >stdout_is_tty
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19 elif
20 test_have_prereq PERL &&
21 "$PERL_PATH" "$TEST_DIRECTORY"/t7006/test-terminal.perl \
22 sh -c "test -t 1"
23 then
fdf1bc48 24 >test_terminal_works
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25 fi
26'
27
28if test -e stdout_is_tty
29then
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30 test_terminal() { "$@"; }
31 test_set_prereq TTY
32elif test -e test_terminal_works
33then
34 test_terminal() {
35 "$PERL_PATH" "$TEST_DIRECTORY"/t7006/test-terminal.perl "$@"
36 }
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37 test_set_prereq TTY
38else
2d3ca216 39 say no usable terminal, so skipping some tests
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40fi
41
60b6e220 42test_expect_success 'setup' '
c289c315 43 unset GIT_PAGER GIT_PAGER_IN_USE;
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44 test_might_fail git config --unset core.pager &&
45
46 PAGER="cat >paginated.out" &&
47 export PAGER &&
48
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49 test_commit initial
50'
51
60b6e220 52test_expect_success TTY 'some commands use a pager' '
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53 rm -f paginated.out ||
54 cleanup_fail &&
55
2d3ca216 56 test_terminal git log &&
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57 test -e paginated.out
58'
59
60b6e220 60test_expect_success TTY 'some commands do not use a pager' '
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61 rm -f paginated.out ||
62 cleanup_fail &&
63
2d3ca216 64 test_terminal git rev-list HEAD &&
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65 ! test -e paginated.out
66'
67
60b6e220 68test_expect_success 'no pager when stdout is a pipe' '
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69 rm -f paginated.out ||
70 cleanup_fail &&
71
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72 git log | cat &&
73 ! test -e paginated.out
74'
75
60b6e220 76test_expect_success 'no pager when stdout is a regular file' '
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77 rm -f paginated.out ||
78 cleanup_fail &&
79
80 git log >file &&
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81 ! test -e paginated.out
82'
83
60b6e220 84test_expect_success TTY 'git --paginate rev-list uses a pager' '
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85 rm -f paginated.out ||
86 cleanup_fail &&
87
2d3ca216 88 test_terminal git --paginate rev-list HEAD &&
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89 test -e paginated.out
90'
91
60b6e220 92test_expect_success 'no pager even with --paginate when stdout is a pipe' '
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93 rm -f file paginated.out ||
94 cleanup_fail &&
95
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96 git --paginate log | cat &&
97 ! test -e paginated.out
98'
99
60b6e220 100test_expect_success TTY 'no pager with --no-pager' '
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101 rm -f paginated.out ||
102 cleanup_fail &&
103
2d3ca216 104 test_terminal git --no-pager log &&
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105 ! test -e paginated.out
106'
107
108# A colored commit log will begin with an appropriate ANSI escape
109# for the first color; the text "commit" comes later.
110colorful() {
fdf1bc48 111 read firstline <$1
e0ae1e6f 112 ! expr "$firstline" : "[a-zA-Z]" >/dev/null
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113}
114
60b6e220 115test_expect_success 'tests can detect color' '
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116 rm -f colorful.log colorless.log ||
117 cleanup_fail &&
118
119 git log --no-color >colorless.log &&
120 git log --color >colorful.log &&
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121 ! colorful colorless.log &&
122 colorful colorful.log
123'
124
60b6e220 125test_expect_success 'no color when stdout is a regular file' '
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126 rm -f colorless.log &&
127 git config color.ui auto ||
128 cleanup_fail &&
129
130 git log >colorless.log &&
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131 ! colorful colorless.log
132'
133
60b6e220 134test_expect_success TTY 'color when writing to a pager' '
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135 rm -f paginated.out &&
136 git config color.ui auto ||
137 cleanup_fail &&
138
139 (
140 TERM=vt100 &&
141 export TERM &&
142 test_terminal git log
143 ) &&
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144 colorful paginated.out
145'
146
60b6e220 147test_expect_success 'color when writing to a file intended for a pager' '
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148 rm -f colorful.log &&
149 git config color.ui auto ||
150 cleanup_fail &&
151
152 (
153 TERM=vt100 &&
154 GIT_PAGER_IN_USE=true &&
155 export TERM GIT_PAGER_IN_USE &&
156 git log >colorful.log
157 ) &&
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158 colorful colorful.log
159'
160
60b6e220 161test_expect_success 'determine default pager' '
c289c315 162 unset PAGER GIT_PAGER;
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163 test_might_fail git config --unset core.pager ||
164 cleanup_fail &&
165
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166 less=$(git var GIT_PAGER) &&
167 test -n "$less"
168'
169
e0ae1e6f 170if expr "$less" : '[a-z][a-z]*$' >/dev/null && test_have_prereq TTY
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171then
172 test_set_prereq SIMPLEPAGER
173fi
174
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175# Use this helper to make it easy for the caller of your
176# terminal-using function to specify whether it should fail.
177# If you write
178#
179# your_test() {
180# parse_args "$@"
181#
182# $test_expectation "$cmd - behaves well" "
183# ...
184# $full_command &&
185# ...
186# "
187# }
188#
189# then your test can be used like this:
190#
191# your_test expect_(success|failure) [test_must_fail] 'git foo'
192#
193parse_args() {
194 test_expectation="test_$1"
195 shift
196 if test "$1" = test_must_fail
197 then
198 full_command="test_must_fail test_terminal "
199 shift
200 else
201 full_command="test_terminal "
202 fi
203 cmd=$1
204 full_command="$full_command $1"
205}
206
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207test_default_pager() {
208 parse_args "$@"
209
210 $test_expectation SIMPLEPAGER "$cmd - default pager is used by default" "
211 unset PAGER GIT_PAGER;
212 test_might_fail git config --unset core.pager &&
213 rm -f default_pager_used ||
214 cleanup_fail &&
215
216 cat >\$less <<-\EOF &&
217 #!/bin/sh
218 wc >default_pager_used
219 EOF
220 chmod +x \$less &&
221 (
222 PATH=.:\$PATH &&
223 export PATH &&
224 $full_command
225 ) &&
226 test -e default_pager_used
227 "
228}
fdf1bc48 229
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230test_PAGER_overrides() {
231 parse_args "$@"
60b6e220 232
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233 $test_expectation TTY "$cmd - PAGER overrides default pager" "
234 unset GIT_PAGER;
235 test_might_fail git config --unset core.pager &&
236 rm -f PAGER_used ||
237 cleanup_fail &&
fdf1bc48 238
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239 PAGER='wc >PAGER_used' &&
240 export PAGER &&
241 $full_command &&
242 test -e PAGER_used
243 "
244}
fdf1bc48 245
8f81449e 246test_core_pager_overrides() {
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247 if_local_config=
248 used_if_wanted='overrides PAGER'
249 test_core_pager "$@"
250}
251
252test_local_config_ignored() {
253 if_local_config='! '
254 used_if_wanted='is not used'
255 test_core_pager "$@"
256}
257
258test_core_pager() {
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259 parse_args "$@"
260
73e25e7c 261 $test_expectation TTY "$cmd - repository-local core.pager setting $used_if_wanted" "
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262 unset GIT_PAGER;
263 rm -f core.pager_used ||
264 cleanup_fail &&
265
266 PAGER=wc &&
267 export PAGER &&
268 git config core.pager 'wc >core.pager_used' &&
269 $full_command &&
73e25e7c 270 ${if_local_config}test -e core.pager_used
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271 "
272}
273
bce2c9ae 274test_core_pager_subdir() {
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275 if_local_config=
276 used_if_wanted='overrides PAGER'
277 test_pager_subdir_helper "$@"
278}
279
280test_no_local_config_subdir() {
281 if_local_config='! '
282 used_if_wanted='is not used'
283 test_pager_subdir_helper "$@"
284}
285
286test_pager_subdir_helper() {
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287 parse_args "$@"
288
73e25e7c 289 $test_expectation TTY "$cmd - core.pager $used_if_wanted from subdirectory" "
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290 unset GIT_PAGER;
291 rm -f core.pager_used &&
292 rm -fr sub ||
293 cleanup_fail &&
294
295 PAGER=wc &&
296 stampname=\$(pwd)/core.pager_used &&
297 export PAGER stampname &&
298 git config core.pager 'wc >\"\$stampname\"' &&
299 mkdir sub &&
300 (
301 cd sub &&
302 $full_command
303 ) &&
73e25e7c 304 ${if_local_config}test -e core.pager_used
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305 "
306}
307
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308test_GIT_PAGER_overrides() {
309 parse_args "$@"
310
311 $test_expectation TTY "$cmd - GIT_PAGER overrides core.pager" "
312 rm -f GIT_PAGER_used ||
313 cleanup_fail &&
314
315 git config core.pager wc &&
316 GIT_PAGER='wc >GIT_PAGER_used' &&
317 export GIT_PAGER &&
318 $full_command &&
319 test -e GIT_PAGER_used
320 "
321}
fdf1bc48 322
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323test_doesnt_paginate() {
324 parse_args "$@"
325
326 $test_expectation TTY "no pager for '$cmd'" "
327 rm -f GIT_PAGER_used ||
328 cleanup_fail &&
329
330 GIT_PAGER='wc >GIT_PAGER_used' &&
331 export GIT_PAGER &&
332 $full_command &&
333 ! test -e GIT_PAGER_used
334 "
335}
336
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337test_default_pager expect_success 'git log'
338test_PAGER_overrides expect_success 'git log'
339test_core_pager_overrides expect_success 'git log'
bce2c9ae 340test_core_pager_subdir expect_success 'git log'
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341test_GIT_PAGER_overrides expect_success 'git log'
342
343test_default_pager expect_success 'git -p log'
344test_PAGER_overrides expect_success 'git -p log'
345test_core_pager_overrides expect_success 'git -p log'
73e25e7c 346test_core_pager_subdir expect_success 'git -p log'
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347test_GIT_PAGER_overrides expect_success 'git -p log'
348
349test_default_pager expect_success test_must_fail 'git -p'
350test_PAGER_overrides expect_success test_must_fail 'git -p'
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351test_local_config_ignored expect_failure test_must_fail 'git -p'
352test_no_local_config_subdir expect_success test_must_fail 'git -p'
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353test_GIT_PAGER_overrides expect_success test_must_fail 'git -p'
354
73e25e7c 355test_doesnt_paginate expect_success test_must_fail 'git -p nonsense'
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356
357test_done