t/t7006-pager.sh

   1 #!/bin/sh
   2
   3 test_description='Test automatic use of a pager.'
   4
   5 . ./test-lib.sh
   6 . "$TEST_DIRECTORY"/lib-pager.sh
   7 . "$TEST_DIRECTORY"/lib-terminal.sh
   8
   9 cleanup_fail() {
  10         echo >&2 cleanup failed
  11         (exit 1)
  12 }
  13
  14 test_expect_success 'setup' '
  15         sane_unset GIT_PAGER GIT_PAGER_IN_USE &&
  16         test_unconfig core.pager &&
  17
  18         PAGER="cat >paginated.out" &&
  19         export PAGER &&
  20
  21         test_commit initial
  22 '
  23
  24 test_expect_success TTY 'some commands use a pager' '
  25         rm -f paginated.out ||
  26         cleanup_fail &&
  27
  28         test_terminal git log &&
  29         test -e paginated.out
  30 '
  31
  32 test_expect_failure TTY 'pager runs from subdir' '
  33         echo subdir/paginated.out >expected &&
  34         mkdir -p subdir &&
  35         rm -f paginated.out subdir/paginated.out &&
  36         (
  37                 cd subdir &&
  38                 test_terminal git log
  39         ) &&
  40         {
  41                 ls paginated.out subdir/paginated.out ||
  42                 :
  43         } >actual &&
  44         test_cmp expected actual
  45 '
  46
  47 test_expect_success TTY 'some commands do not use a pager' '
  48         rm -f paginated.out ||
  49         cleanup_fail &&
  50
  51         test_terminal git rev-list HEAD &&
  52         ! test -e paginated.out
  53 '
  54
  55 test_expect_success 'no pager when stdout is a pipe' '
  56         rm -f paginated.out ||
  57         cleanup_fail &&
  58
  59         git log | cat &&
  60         ! test -e paginated.out
  61 '
  62
  63 test_expect_success 'no pager when stdout is a regular file' '
  64         rm -f paginated.out ||
  65         cleanup_fail &&
  66
  67         git log >file &&
  68         ! test -e paginated.out
  69 '
  70
  71 test_expect_success TTY 'git --paginate rev-list uses a pager' '
  72         rm -f paginated.out ||
  73         cleanup_fail &&
  74
  75         test_terminal git --paginate rev-list HEAD &&
  76         test -e paginated.out
  77 '
  78
  79 test_expect_success 'no pager even with --paginate when stdout is a pipe' '
  80         rm -f file paginated.out ||
  81         cleanup_fail &&
  82
  83         git --paginate log | cat &&
  84         ! test -e paginated.out
  85 '
  86
  87 test_expect_success TTY 'no pager with --no-pager' '
  88         rm -f paginated.out ||
  89         cleanup_fail &&
  90
  91         test_terminal git --no-pager log &&
  92         ! test -e paginated.out
  93 '
  94
  95 test_expect_success TTY 'configuration can disable pager' '
  96         rm -f paginated.out &&
  97         test_unconfig pager.grep &&
  98         test_terminal git grep initial &&
  99         test -e paginated.out &&
 100
 101         rm -f paginated.out &&
 102         test_config pager.grep false &&
 103         test_terminal git grep initial &&
 104         ! test -e paginated.out
 105 '
 106
 107 test_expect_success TTY 'git config uses a pager if configured to' '
 108         rm -f paginated.out &&
 109         test_config pager.config true &&
 110         test_terminal git config --list &&
 111         test -e paginated.out
 112 '
 113
 114 test_expect_success TTY 'configuration can enable pager (from subdir)' '
 115         rm -f paginated.out &&
 116         mkdir -p subdir &&
 117         test_config pager.bundle true &&
 118
 119         git bundle create test.bundle --all &&
 120         rm -f paginated.out subdir/paginated.out &&
 121         (
 122                 cd subdir &&
 123                 test_terminal git bundle unbundle ../test.bundle
 124         ) &&
 125         {
 126                 test -e paginated.out ||
 127                 test -e subdir/paginated.out
 128         }
 129 '
 130
 131 # A colored commit log will begin with an appropriate ANSI escape
 132 # for the first color; the text "commit" comes later.
 133 colorful() {
 134         read firstline <$1
 135         ! expr "$firstline" : "[a-zA-Z]" >/dev/null
 136 }
 137
 138 test_expect_success 'tests can detect color' '
 139         rm -f colorful.log colorless.log ||
 140         cleanup_fail &&
 141
 142         git log --no-color >colorless.log &&
 143         git log --color >colorful.log &&
 144         ! colorful colorless.log &&
 145         colorful colorful.log
 146 '
 147
 148 test_expect_success 'no color when stdout is a regular file' '
 149         rm -f colorless.log &&
 150         test_config color.ui auto ||
 151         cleanup_fail &&
 152
 153         git log >colorless.log &&
 154         ! colorful colorless.log
 155 '
 156
 157 test_expect_success TTY 'color when writing to a pager' '
 158         rm -f paginated.out &&
 159         test_config color.ui auto ||
 160         cleanup_fail &&
 161
 162         (
 163                 TERM=vt100 &&
 164                 export TERM &&
 165                 test_terminal git log
 166         ) &&
 167         colorful paginated.out
 168 '
 169
 170 test_expect_success TTY 'colors are suppressed by color.pager' '
 171         rm -f paginated.out &&
 172         test_config color.ui auto &&
 173         test_config color.pager false &&
 174         (
 175                 TERM=vt100 &&
 176                 export TERM &&
 177                 test_terminal git log
 178         ) &&
 179         ! colorful paginated.out
 180 '
 181
 182 test_expect_success 'color when writing to a file intended for a pager' '
 183         rm -f colorful.log &&
 184         test_config color.ui auto ||
 185         cleanup_fail &&
 186
 187         (
 188                 TERM=vt100 &&
 189                 GIT_PAGER_IN_USE=true &&
 190                 export TERM GIT_PAGER_IN_USE &&
 191                 git log >colorful.log
 192         ) &&
 193         colorful colorful.log
 194 '
 195
 196 test_expect_success TTY 'colors are sent to pager for external commands' '
 197         test_config alias.externallog "!git log" &&
 198         test_config color.ui auto &&
 199         (
 200                 TERM=vt100 &&
 201                 export TERM &&
 202                 test_terminal git -p externallog
 203         ) &&
 204         colorful paginated.out
 205 '
 206
 207 # Use this helper to make it easy for the caller of your
 208 # terminal-using function to specify whether it should fail.
 209 # If you write
 210 #
 211 #       your_test() {
 212 #               parse_args "$@"
 213 #
 214 #               $test_expectation "$cmd - behaves well" "
 215 #                       ...
 216 #                       $full_command &&
 217 #                       ...
 218 #               "
 219 #       }
 220 #
 221 # then your test can be used like this:
 222 #
 223 #       your_test expect_(success|failure) [test_must_fail] 'git foo'
 224 #
 225 parse_args() {
 226         test_expectation="test_$1"
 227         shift
 228         if test "$1" = test_must_fail
 229         then
 230                 full_command="test_must_fail test_terminal "
 231                 shift
 232         else
 233                 full_command="test_terminal "
 234         fi
 235         cmd=$1
 236         full_command="$full_command $1"
 237 }
 238
 239 test_default_pager() {
 240         parse_args "$@"
 241
 242         $test_expectation SIMPLEPAGER,TTY "$cmd - default pager is used by default" "
 243                 sane_unset PAGER GIT_PAGER &&
 244                 test_unconfig core.pager &&
 245                 rm -f default_pager_used ||
 246                 cleanup_fail &&
 247
 248                 cat >\$less <<-\EOF &&
 249                 #!/bin/sh
 250                 wc >default_pager_used
 251                 EOF
 252                 chmod +x \$less &&
 253                 (
 254                         PATH=.:\$PATH &&
 255                         export PATH &&
 256                         $full_command
 257                 ) &&
 258                 test -e default_pager_used
 259         "
 260 }
 261
 262 test_PAGER_overrides() {
 263         parse_args "$@"
 264
 265         $test_expectation TTY "$cmd - PAGER overrides default pager" "
 266                 sane_unset GIT_PAGER &&
 267                 test_unconfig core.pager &&
 268                 rm -f PAGER_used ||
 269                 cleanup_fail &&
 270
 271                 PAGER='wc >PAGER_used' &&
 272                 export PAGER &&
 273                 $full_command &&
 274                 test -e PAGER_used
 275         "
 276 }
 277
 278 test_core_pager_overrides() {
 279         if_local_config=
 280         used_if_wanted='overrides PAGER'
 281         test_core_pager "$@"
 282 }
 283
 284 test_local_config_ignored() {
 285         if_local_config='! '
 286         used_if_wanted='is not used'
 287         test_core_pager "$@"
 288 }
 289
 290 test_core_pager() {
 291         parse_args "$@"
 292
 293         $test_expectation TTY "$cmd - repository-local core.pager setting $used_if_wanted" "
 294                 sane_unset GIT_PAGER &&
 295                 rm -f core.pager_used ||
 296                 cleanup_fail &&
 297
 298                 PAGER=wc &&
 299                 export PAGER &&
 300                 test_config core.pager 'wc >core.pager_used' &&
 301                 $full_command &&
 302                 ${if_local_config}test -e core.pager_used
 303         "
 304 }
 305
 306 test_core_pager_subdir() {
 307         if_local_config=
 308         used_if_wanted='overrides PAGER'
 309         test_pager_subdir_helper "$@"
 310 }
 311
 312 test_no_local_config_subdir() {
 313         if_local_config='! '
 314         used_if_wanted='is not used'
 315         test_pager_subdir_helper "$@"
 316 }
 317
 318 test_pager_subdir_helper() {
 319         parse_args "$@"
 320
 321         $test_expectation TTY "$cmd - core.pager $used_if_wanted from subdirectory" "
 322                 sane_unset GIT_PAGER &&
 323                 rm -f core.pager_used &&
 324                 rm -fr sub ||
 325                 cleanup_fail &&
 326
 327                 PAGER=wc &&
 328                 stampname=\$(pwd)/core.pager_used &&
 329                 export PAGER stampname &&
 330                 test_config core.pager 'wc >\"\$stampname\"' &&
 331                 mkdir sub &&
 332                 (
 333                         cd sub &&
 334                         $full_command
 335                 ) &&
 336                 ${if_local_config}test -e core.pager_used
 337         "
 338 }
 339
 340 test_GIT_PAGER_overrides() {
 341         parse_args "$@"
 342
 343         $test_expectation TTY "$cmd - GIT_PAGER overrides core.pager" "
 344                 rm -f GIT_PAGER_used ||
 345                 cleanup_fail &&
 346
 347                 test_config core.pager wc &&
 348                 GIT_PAGER='wc >GIT_PAGER_used' &&
 349                 export GIT_PAGER &&
 350                 $full_command &&
 351                 test -e GIT_PAGER_used
 352         "
 353 }
 354
 355 test_doesnt_paginate() {
 356         parse_args "$@"
 357
 358         $test_expectation TTY "no pager for '$cmd'" "
 359                 rm -f GIT_PAGER_used ||
 360                 cleanup_fail &&
 361
 362                 GIT_PAGER='wc >GIT_PAGER_used' &&
 363                 export GIT_PAGER &&
 364                 $full_command &&
 365                 ! test -e GIT_PAGER_used
 366         "
 367 }
 368
 369 test_pager_choices() {
 370         test_default_pager        expect_success "$@"
 371         test_PAGER_overrides      expect_success "$@"
 372         test_core_pager_overrides expect_success "$@"
 373         test_core_pager_subdir    expect_success "$@"
 374         test_GIT_PAGER_overrides  expect_success "$@"
 375 }
 376
 377 test_expect_success 'setup: some aliases' '
 378         git config alias.aliasedlog log &&
 379         git config alias.true "!true"
 380 '
 381
 382 test_pager_choices                       'git log'
 383 test_pager_choices                       'git -p log'
 384 test_pager_choices                       'git aliasedlog'
 385
 386 test_default_pager        expect_success 'git -p aliasedlog'
 387 test_PAGER_overrides      expect_success 'git -p aliasedlog'
 388 test_core_pager_overrides expect_success 'git -p aliasedlog'
 389 test_core_pager_subdir    expect_failure 'git -p aliasedlog'
 390 test_GIT_PAGER_overrides  expect_success 'git -p aliasedlog'
 391
 392 test_default_pager        expect_success 'git -p true'
 393 test_PAGER_overrides      expect_success 'git -p true'
 394 test_core_pager_overrides expect_success 'git -p true'
 395 test_core_pager_subdir    expect_failure 'git -p true'
 396 test_GIT_PAGER_overrides  expect_success 'git -p true'
 397
 398 test_default_pager        expect_success test_must_fail 'git -p request-pull'
 399 test_PAGER_overrides      expect_success test_must_fail 'git -p request-pull'
 400 test_core_pager_overrides expect_success test_must_fail 'git -p request-pull'
 401 test_core_pager_subdir    expect_failure test_must_fail 'git -p request-pull'
 402 test_GIT_PAGER_overrides  expect_success test_must_fail 'git -p request-pull'
 403
 404 test_default_pager        expect_success test_must_fail 'git -p'
 405 test_PAGER_overrides      expect_success test_must_fail 'git -p'
 406 test_local_config_ignored expect_failure test_must_fail 'git -p'
 407 test_no_local_config_subdir expect_success test_must_fail 'git -p'
 408 test_GIT_PAGER_overrides  expect_success test_must_fail 'git -p'
 409
 410 test_doesnt_paginate      expect_failure test_must_fail 'git -p nonsense'
 411
 412 test_pager_choices                       'git shortlog'
 413 test_expect_success 'setup: configure shortlog not to paginate' '
 414         git config pager.shortlog false
 415 '
 416 test_doesnt_paginate      expect_success 'git shortlog'
 417 test_no_local_config_subdir expect_success 'git shortlog'
 418 test_default_pager        expect_success 'git -p shortlog'
 419 test_core_pager_subdir    expect_success 'git -p shortlog'
 420
 421 test_core_pager_subdir    expect_success test_must_fail \
 422                                          'git -p apply </dev/null'
 423
 424 test_expect_success TTY 'command-specific pager' '
 425         sane_unset PAGER GIT_PAGER &&
 426         echo "foo:initial" >expect &&
 427         >actual &&
 428         test_unconfig core.pager &&
 429         test_config pager.log "sed s/^/foo:/ >actual" &&
 430         test_terminal git log --format=%s -1 &&
 431         test_cmp expect actual
 432 '
 433
 434 test_expect_success TTY 'command-specific pager overrides core.pager' '
 435         sane_unset PAGER GIT_PAGER &&
 436         echo "foo:initial" >expect &&
 437         >actual &&
 438         test_config core.pager "exit 1"
 439         test_config pager.log "sed s/^/foo:/ >actual" &&
 440         test_terminal git log --format=%s -1 &&
 441         test_cmp expect actual
 442 '
 443
 444 test_expect_success TTY 'command-specific pager overridden by environment' '
 445         GIT_PAGER="sed s/^/foo:/ >actual" && export GIT_PAGER &&
 446         >actual &&
 447         echo "foo:initial" >expect &&
 448         test_config pager.log "exit 1" &&
 449         test_terminal git log --format=%s -1 &&
 450         test_cmp expect actual
 451 '
 452
 453 test_done