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 'color when writing to a file intended for a pager' '
 171         rm -f colorful.log &&
 172         test_config color.ui auto ||
 173         cleanup_fail &&
 174
 175         (
 176                 TERM=vt100 &&
 177                 GIT_PAGER_IN_USE=true &&
 178                 export TERM GIT_PAGER_IN_USE &&
 179                 git log >colorful.log
 180         ) &&
 181         colorful colorful.log
 182 '
 183
 184 test_expect_success TTY 'colors are sent to pager for external commands' '
 185         test_config alias.externallog "!git log" &&
 186         test_config color.ui auto &&
 187         (
 188                 TERM=vt100 &&
 189                 export TERM &&
 190                 test_terminal git -p externallog
 191         ) &&
 192         colorful paginated.out
 193 '
 194
 195 # Use this helper to make it easy for the caller of your
 196 # terminal-using function to specify whether it should fail.
 197 # If you write
 198 #
 199 #       your_test() {
 200 #               parse_args "$@"
 201 #
 202 #               $test_expectation "$cmd - behaves well" "
 203 #                       ...
 204 #                       $full_command &&
 205 #                       ...
 206 #               "
 207 #       }
 208 #
 209 # then your test can be used like this:
 210 #
 211 #       your_test expect_(success|failure) [test_must_fail] 'git foo'
 212 #
 213 parse_args() {
 214         test_expectation="test_$1"
 215         shift
 216         if test "$1" = test_must_fail
 217         then
 218                 full_command="test_must_fail test_terminal "
 219                 shift
 220         else
 221                 full_command="test_terminal "
 222         fi
 223         cmd=$1
 224         full_command="$full_command $1"
 225 }
 226
 227 test_default_pager() {
 228         parse_args "$@"
 229
 230         $test_expectation SIMPLEPAGER,TTY "$cmd - default pager is used by default" "
 231                 sane_unset PAGER GIT_PAGER &&
 232                 test_unconfig core.pager &&
 233                 rm -f default_pager_used ||
 234                 cleanup_fail &&
 235
 236                 cat >\$less <<-\EOF &&
 237                 #!/bin/sh
 238                 wc >default_pager_used
 239                 EOF
 240                 chmod +x \$less &&
 241                 (
 242                         PATH=.:\$PATH &&
 243                         export PATH &&
 244                         $full_command
 245                 ) &&
 246                 test -e default_pager_used
 247         "
 248 }
 249
 250 test_PAGER_overrides() {
 251         parse_args "$@"
 252
 253         $test_expectation TTY "$cmd - PAGER overrides default pager" "
 254                 sane_unset GIT_PAGER &&
 255                 test_unconfig core.pager &&
 256                 rm -f PAGER_used ||
 257                 cleanup_fail &&
 258
 259                 PAGER='wc >PAGER_used' &&
 260                 export PAGER &&
 261                 $full_command &&
 262                 test -e PAGER_used
 263         "
 264 }
 265
 266 test_core_pager_overrides() {
 267         if_local_config=
 268         used_if_wanted='overrides PAGER'
 269         test_core_pager "$@"
 270 }
 271
 272 test_local_config_ignored() {
 273         if_local_config='! '
 274         used_if_wanted='is not used'
 275         test_core_pager "$@"
 276 }
 277
 278 test_core_pager() {
 279         parse_args "$@"
 280
 281         $test_expectation TTY "$cmd - repository-local core.pager setting $used_if_wanted" "
 282                 sane_unset GIT_PAGER &&
 283                 rm -f core.pager_used ||
 284                 cleanup_fail &&
 285
 286                 PAGER=wc &&
 287                 export PAGER &&
 288                 test_config core.pager 'wc >core.pager_used' &&
 289                 $full_command &&
 290                 ${if_local_config}test -e core.pager_used
 291         "
 292 }
 293
 294 test_core_pager_subdir() {
 295         if_local_config=
 296         used_if_wanted='overrides PAGER'
 297         test_pager_subdir_helper "$@"
 298 }
 299
 300 test_no_local_config_subdir() {
 301         if_local_config='! '
 302         used_if_wanted='is not used'
 303         test_pager_subdir_helper "$@"
 304 }
 305
 306 test_pager_subdir_helper() {
 307         parse_args "$@"
 308
 309         $test_expectation TTY "$cmd - core.pager $used_if_wanted from subdirectory" "
 310                 sane_unset GIT_PAGER &&
 311                 rm -f core.pager_used &&
 312                 rm -fr sub ||
 313                 cleanup_fail &&
 314
 315                 PAGER=wc &&
 316                 stampname=\$(pwd)/core.pager_used &&
 317                 export PAGER stampname &&
 318                 test_config core.pager 'wc >\"\$stampname\"' &&
 319                 mkdir sub &&
 320                 (
 321                         cd sub &&
 322                         $full_command
 323                 ) &&
 324                 ${if_local_config}test -e core.pager_used
 325         "
 326 }
 327
 328 test_GIT_PAGER_overrides() {
 329         parse_args "$@"
 330
 331         $test_expectation TTY "$cmd - GIT_PAGER overrides core.pager" "
 332                 rm -f GIT_PAGER_used ||
 333                 cleanup_fail &&
 334
 335                 test_config core.pager wc &&
 336                 GIT_PAGER='wc >GIT_PAGER_used' &&
 337                 export GIT_PAGER &&
 338                 $full_command &&
 339                 test -e GIT_PAGER_used
 340         "
 341 }
 342
 343 test_doesnt_paginate() {
 344         parse_args "$@"
 345
 346         $test_expectation TTY "no pager for '$cmd'" "
 347                 rm -f GIT_PAGER_used ||
 348                 cleanup_fail &&
 349
 350                 GIT_PAGER='wc >GIT_PAGER_used' &&
 351                 export GIT_PAGER &&
 352                 $full_command &&
 353                 ! test -e GIT_PAGER_used
 354         "
 355 }
 356
 357 test_pager_choices() {
 358         test_default_pager        expect_success "$@"
 359         test_PAGER_overrides      expect_success "$@"
 360         test_core_pager_overrides expect_success "$@"
 361         test_core_pager_subdir    expect_success "$@"
 362         test_GIT_PAGER_overrides  expect_success "$@"
 363 }
 364
 365 test_expect_success 'setup: some aliases' '
 366         git config alias.aliasedlog log &&
 367         git config alias.true "!true"
 368 '
 369
 370 test_pager_choices                       'git log'
 371 test_pager_choices                       'git -p log'
 372 test_pager_choices                       'git aliasedlog'
 373
 374 test_default_pager        expect_success 'git -p aliasedlog'
 375 test_PAGER_overrides      expect_success 'git -p aliasedlog'
 376 test_core_pager_overrides expect_success 'git -p aliasedlog'
 377 test_core_pager_subdir    expect_failure 'git -p aliasedlog'
 378 test_GIT_PAGER_overrides  expect_success 'git -p aliasedlog'
 379
 380 test_default_pager        expect_success 'git -p true'
 381 test_PAGER_overrides      expect_success 'git -p true'
 382 test_core_pager_overrides expect_success 'git -p true'
 383 test_core_pager_subdir    expect_failure 'git -p true'
 384 test_GIT_PAGER_overrides  expect_success 'git -p true'
 385
 386 test_default_pager        expect_success test_must_fail 'git -p request-pull'
 387 test_PAGER_overrides      expect_success test_must_fail 'git -p request-pull'
 388 test_core_pager_overrides expect_success test_must_fail 'git -p request-pull'
 389 test_core_pager_subdir    expect_failure test_must_fail 'git -p request-pull'
 390 test_GIT_PAGER_overrides  expect_success test_must_fail 'git -p request-pull'
 391
 392 test_default_pager        expect_success test_must_fail 'git -p'
 393 test_PAGER_overrides      expect_success test_must_fail 'git -p'
 394 test_local_config_ignored expect_failure test_must_fail 'git -p'
 395 test_no_local_config_subdir expect_success test_must_fail 'git -p'
 396 test_GIT_PAGER_overrides  expect_success test_must_fail 'git -p'
 397
 398 test_doesnt_paginate      expect_failure test_must_fail 'git -p nonsense'
 399
 400 test_pager_choices                       'git shortlog'
 401 test_expect_success 'setup: configure shortlog not to paginate' '
 402         git config pager.shortlog false
 403 '
 404 test_doesnt_paginate      expect_success 'git shortlog'
 405 test_no_local_config_subdir expect_success 'git shortlog'
 406 test_default_pager        expect_success 'git -p shortlog'
 407 test_core_pager_subdir    expect_success 'git -p shortlog'
 408
 409 test_core_pager_subdir    expect_success test_must_fail \
 410                                          'git -p apply </dev/null'
 411
 412 test_expect_success TTY 'command-specific pager' '
 413         sane_unset PAGER GIT_PAGER &&
 414         echo "foo:initial" >expect &&
 415         >actual &&
 416         test_unconfig core.pager &&
 417         test_config pager.log "sed s/^/foo:/ >actual" &&
 418         test_terminal git log --format=%s -1 &&
 419         test_cmp expect actual
 420 '
 421
 422 test_expect_success TTY 'command-specific pager overrides core.pager' '
 423         sane_unset PAGER GIT_PAGER &&
 424         echo "foo:initial" >expect &&
 425         >actual &&
 426         test_config core.pager "exit 1"
 427         test_config pager.log "sed s/^/foo:/ >actual" &&
 428         test_terminal git log --format=%s -1 &&
 429         test_cmp expect actual
 430 '
 431
 432 test_expect_success TTY 'command-specific pager overridden by environment' '
 433         GIT_PAGER="sed s/^/foo:/ >actual" && export GIT_PAGER &&
 434         >actual &&
 435         echo "foo:initial" >expect &&
 436         test_config pager.log "exit 1" &&
 437         test_terminal git log --format=%s -1 &&
 438         test_cmp expect actual
 439 '
 440
 441 test_done