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 test_expect_success 'setup' '
  10         sane_unset GIT_PAGER GIT_PAGER_IN_USE &&
  11         test_unconfig core.pager &&
  12
  13         PAGER="cat >paginated.out" &&
  14         export PAGER &&
  15
  16         test_commit initial
  17 '
  18
  19 test_expect_success TTY 'some commands use a pager' '
  20         rm -f paginated.out &&
  21         test_terminal git log &&
  22         test -e paginated.out
  23 '
  24
  25 test_expect_failure TTY 'pager runs from subdir' '
  26         echo subdir/paginated.out >expected &&
  27         mkdir -p subdir &&
  28         rm -f paginated.out subdir/paginated.out &&
  29         (
  30                 cd subdir &&
  31                 test_terminal git log
  32         ) &&
  33         {
  34                 ls paginated.out subdir/paginated.out ||
  35                 :
  36         } >actual &&
  37         test_cmp expected actual
  38 '
  39
  40 test_expect_success TTY 'LESS and LV envvars are set for pagination' '
  41         (
  42                 sane_unset LESS LV &&
  43                 PAGER="env >pager-env.out; wc" &&
  44                 export PAGER &&
  45
  46                 test_terminal git log
  47         ) &&
  48         grep ^LESS= pager-env.out &&
  49         grep ^LV= pager-env.out
  50 '
  51
  52 test_expect_success !MINGW,TTY 'LESS and LV envvars set by git-sh-setup' '
  53         (
  54                 sane_unset LESS LV &&
  55                 PAGER="env >pager-env.out; wc" &&
  56                 export PAGER &&
  57                 PATH="$(git --exec-path):$PATH" &&
  58                 export PATH &&
  59                 test_terminal sh -c ". git-sh-setup && git_pager"
  60         ) &&
  61         grep ^LESS= pager-env.out &&
  62         grep ^LV= pager-env.out
  63 '
  64
  65 test_expect_success TTY 'some commands do not use a pager' '
  66         rm -f paginated.out &&
  67         test_terminal git rev-list HEAD &&
  68         ! test -e paginated.out
  69 '
  70
  71 test_expect_success 'no pager when stdout is a pipe' '
  72         rm -f paginated.out &&
  73         git log | cat &&
  74         ! test -e paginated.out
  75 '
  76
  77 test_expect_success 'no pager when stdout is a regular file' '
  78         rm -f paginated.out &&
  79         git log >file &&
  80         ! test -e paginated.out
  81 '
  82
  83 test_expect_success TTY 'git --paginate rev-list uses a pager' '
  84         rm -f paginated.out &&
  85         test_terminal git --paginate rev-list HEAD &&
  86         test -e paginated.out
  87 '
  88
  89 test_expect_success 'no pager even with --paginate when stdout is a pipe' '
  90         rm -f file paginated.out &&
  91         git --paginate log | cat &&
  92         ! test -e paginated.out
  93 '
  94
  95 test_expect_success TTY 'no pager with --no-pager' '
  96         rm -f paginated.out &&
  97         test_terminal git --no-pager log &&
  98         ! test -e paginated.out
  99 '
 100
 101 test_expect_success TTY 'configuration can disable pager' '
 102         rm -f paginated.out &&
 103         test_unconfig pager.grep &&
 104         test_terminal git grep initial &&
 105         test -e paginated.out &&
 106
 107         rm -f paginated.out &&
 108         test_config pager.grep false &&
 109         test_terminal git grep initial &&
 110         ! test -e paginated.out
 111 '
 112
 113 test_expect_success TTY 'git config uses a pager if configured to' '
 114         rm -f paginated.out &&
 115         test_config pager.config true &&
 116         test_terminal git config --list &&
 117         test -e paginated.out
 118 '
 119
 120 test_expect_success TTY 'configuration can enable pager (from subdir)' '
 121         rm -f paginated.out &&
 122         mkdir -p subdir &&
 123         test_config pager.bundle true &&
 124
 125         git bundle create test.bundle --all &&
 126         rm -f paginated.out subdir/paginated.out &&
 127         (
 128                 cd subdir &&
 129                 test_terminal git bundle unbundle ../test.bundle
 130         ) &&
 131         {
 132                 test -e paginated.out ||
 133                 test -e subdir/paginated.out
 134         }
 135 '
 136
 137 # A colored commit log will begin with an appropriate ANSI escape
 138 # for the first color; the text "commit" comes later.
 139 colorful() {
 140         read firstline <$1
 141         ! expr "$firstline" : "[a-zA-Z]" >/dev/null
 142 }
 143
 144 test_expect_success 'tests can detect color' '
 145         rm -f colorful.log colorless.log &&
 146         git log --no-color >colorless.log &&
 147         git log --color >colorful.log &&
 148         ! colorful colorless.log &&
 149         colorful colorful.log
 150 '
 151
 152 test_expect_success 'no color when stdout is a regular file' '
 153         rm -f colorless.log &&
 154         test_config color.ui auto &&
 155         git log >colorless.log &&
 156         ! colorful colorless.log
 157 '
 158
 159 test_expect_success TTY 'color when writing to a pager' '
 160         rm -f paginated.out &&
 161         test_config color.ui auto &&
 162         test_terminal env TERM=vt100 git log &&
 163         colorful paginated.out
 164 '
 165
 166 test_expect_success TTY 'colors are suppressed by color.pager' '
 167         rm -f paginated.out &&
 168         test_config color.ui auto &&
 169         test_config color.pager false &&
 170         test_terminal env TERM=vt100 git log &&
 171         ! colorful paginated.out
 172 '
 173
 174 test_expect_success 'color when writing to a file intended for a pager' '
 175         rm -f colorful.log &&
 176         test_config color.ui auto &&
 177         (
 178                 TERM=vt100 &&
 179                 GIT_PAGER_IN_USE=true &&
 180                 export TERM GIT_PAGER_IN_USE &&
 181                 git log >colorful.log
 182         ) &&
 183         colorful colorful.log
 184 '
 185
 186 test_expect_success TTY 'colors are sent to pager for external commands' '
 187         test_config alias.externallog "!git log" &&
 188         test_config color.ui auto &&
 189         test_terminal env TERM=vt100 git -p externallog &&
 190         colorful paginated.out
 191 '
 192
 193 # Use this helper to make it easy for the caller of your
 194 # terminal-using function to specify whether it should fail.
 195 # If you write
 196 #
 197 #       your_test() {
 198 #               parse_args "$@"
 199 #
 200 #               $test_expectation "$cmd - behaves well" "
 201 #                       ...
 202 #                       $full_command &&
 203 #                       ...
 204 #               "
 205 #       }
 206 #
 207 # then your test can be used like this:
 208 #
 209 #       your_test expect_(success|failure) [test_must_fail] 'git foo'
 210 #
 211 parse_args() {
 212         test_expectation="test_$1"
 213         shift
 214         if test "$1" = test_must_fail
 215         then
 216                 full_command="test_must_fail test_terminal "
 217                 shift
 218         else
 219                 full_command="test_terminal "
 220         fi
 221         cmd=$1
 222         full_command="$full_command $1"
 223 }
 224
 225 test_default_pager() {
 226         parse_args "$@"
 227
 228         $test_expectation SIMPLEPAGER,TTY "$cmd - default pager is used by default" "
 229                 sane_unset PAGER GIT_PAGER &&
 230                 test_unconfig core.pager &&
 231                 rm -f default_pager_used &&
 232                 cat >\$less <<-\EOF &&
 233                 #!/bin/sh
 234                 wc >default_pager_used
 235                 EOF
 236                 chmod +x \$less &&
 237                 (
 238                         PATH=.:\$PATH &&
 239                         export PATH &&
 240                         $full_command
 241                 ) &&
 242                 test -e default_pager_used
 243         "
 244 }
 245
 246 test_PAGER_overrides() {
 247         parse_args "$@"
 248
 249         $test_expectation TTY "$cmd - PAGER overrides default pager" "
 250                 sane_unset GIT_PAGER &&
 251                 test_unconfig core.pager &&
 252                 rm -f PAGER_used &&
 253                 PAGER='wc >PAGER_used' &&
 254                 export PAGER &&
 255                 $full_command &&
 256                 test -e PAGER_used
 257         "
 258 }
 259
 260 test_core_pager_overrides() {
 261         if_local_config=
 262         used_if_wanted='overrides PAGER'
 263         test_core_pager "$@"
 264 }
 265
 266 test_local_config_ignored() {
 267         if_local_config='! '
 268         used_if_wanted='is not used'
 269         test_core_pager "$@"
 270 }
 271
 272 test_core_pager() {
 273         parse_args "$@"
 274
 275         $test_expectation TTY "$cmd - repository-local core.pager setting $used_if_wanted" "
 276                 sane_unset GIT_PAGER &&
 277                 rm -f core.pager_used &&
 278                 PAGER=wc &&
 279                 export PAGER &&
 280                 test_config core.pager 'wc >core.pager_used' &&
 281                 $full_command &&
 282                 ${if_local_config}test -e core.pager_used
 283         "
 284 }
 285
 286 test_core_pager_subdir() {
 287         if_local_config=
 288         used_if_wanted='overrides PAGER'
 289         test_pager_subdir_helper "$@"
 290 }
 291
 292 test_no_local_config_subdir() {
 293         if_local_config='! '
 294         used_if_wanted='is not used'
 295         test_pager_subdir_helper "$@"
 296 }
 297
 298 test_pager_subdir_helper() {
 299         parse_args "$@"
 300
 301         $test_expectation TTY "$cmd - core.pager $used_if_wanted from subdirectory" "
 302                 sane_unset GIT_PAGER &&
 303                 rm -f core.pager_used &&
 304                 rm -fr sub &&
 305                 PAGER=wc &&
 306                 stampname=\$(pwd)/core.pager_used &&
 307                 export PAGER stampname &&
 308                 test_config core.pager 'wc >\"\$stampname\"' &&
 309                 mkdir sub &&
 310                 (
 311                         cd sub &&
 312                         $full_command
 313                 ) &&
 314                 ${if_local_config}test -e core.pager_used
 315         "
 316 }
 317
 318 test_GIT_PAGER_overrides() {
 319         parse_args "$@"
 320
 321         $test_expectation TTY "$cmd - GIT_PAGER overrides core.pager" "
 322                 rm -f GIT_PAGER_used &&
 323                 test_config core.pager wc &&
 324                 GIT_PAGER='wc >GIT_PAGER_used' &&
 325                 export GIT_PAGER &&
 326                 $full_command &&
 327                 test -e GIT_PAGER_used
 328         "
 329 }
 330
 331 test_doesnt_paginate() {
 332         parse_args "$@"
 333
 334         $test_expectation TTY "no pager for '$cmd'" "
 335                 rm -f GIT_PAGER_used &&
 336                 GIT_PAGER='wc >GIT_PAGER_used' &&
 337                 export GIT_PAGER &&
 338                 $full_command &&
 339                 ! test -e GIT_PAGER_used
 340         "
 341 }
 342
 343 test_pager_choices() {
 344         test_default_pager        expect_success "$@"
 345         test_PAGER_overrides      expect_success "$@"
 346         test_core_pager_overrides expect_success "$@"
 347         test_core_pager_subdir    expect_success "$@"
 348         test_GIT_PAGER_overrides  expect_success "$@"
 349 }
 350
 351 test_expect_success 'setup: some aliases' '
 352         git config alias.aliasedlog log &&
 353         git config alias.true "!true"
 354 '
 355
 356 test_pager_choices                       'git log'
 357 test_pager_choices                       'git -p log'
 358 test_pager_choices                       'git aliasedlog'
 359
 360 test_default_pager        expect_success 'git -p aliasedlog'
 361 test_PAGER_overrides      expect_success 'git -p aliasedlog'
 362 test_core_pager_overrides expect_success 'git -p aliasedlog'
 363 test_core_pager_subdir    expect_success 'git -p aliasedlog'
 364 test_GIT_PAGER_overrides  expect_success 'git -p aliasedlog'
 365
 366 test_default_pager        expect_success 'git -p true'
 367 test_PAGER_overrides      expect_success 'git -p true'
 368 test_core_pager_overrides expect_success 'git -p true'
 369 test_core_pager_subdir    expect_success 'git -p true'
 370 test_GIT_PAGER_overrides  expect_success 'git -p true'
 371
 372 test_default_pager        expect_success test_must_fail 'git -p request-pull'
 373 test_PAGER_overrides      expect_success test_must_fail 'git -p request-pull'
 374 test_core_pager_overrides expect_success test_must_fail 'git -p request-pull'
 375 test_core_pager_subdir    expect_success test_must_fail 'git -p request-pull'
 376 test_GIT_PAGER_overrides  expect_success test_must_fail 'git -p request-pull'
 377
 378 test_default_pager        expect_success test_must_fail 'git -p'
 379 test_PAGER_overrides      expect_success test_must_fail 'git -p'
 380 test_local_config_ignored expect_failure test_must_fail 'git -p'
 381 test_GIT_PAGER_overrides  expect_success test_must_fail 'git -p'
 382
 383 test_expect_success TTY 'core.pager in repo config works and retains cwd' '
 384         sane_unset GIT_PAGER &&
 385         test_config core.pager "cat >cwd-retained" &&
 386         (
 387                 cd sub &&
 388                 rm -f cwd-retained &&
 389                 test_terminal git -p rev-parse HEAD &&
 390                 test_path_is_file cwd-retained
 391         )
 392 '
 393
 394 test_doesnt_paginate      expect_failure test_must_fail 'git -p nonsense'
 395
 396 test_pager_choices                       'git shortlog'
 397 test_expect_success 'setup: configure shortlog not to paginate' '
 398         git config pager.shortlog false
 399 '
 400 test_doesnt_paginate      expect_success 'git shortlog'
 401 test_no_local_config_subdir expect_success 'git shortlog'
 402 test_default_pager        expect_success 'git -p shortlog'
 403 test_core_pager_subdir    expect_success 'git -p shortlog'
 404
 405 test_core_pager_subdir    expect_success test_must_fail \
 406                                          'git -p apply </dev/null'
 407
 408 test_expect_success TTY 'command-specific pager' '
 409         sane_unset PAGER GIT_PAGER &&
 410         echo "foo:initial" >expect &&
 411         >actual &&
 412         test_unconfig core.pager &&
 413         test_config pager.log "sed s/^/foo:/ >actual" &&
 414         test_terminal git log --format=%s -1 &&
 415         test_cmp expect actual
 416 '
 417
 418 test_expect_success TTY 'command-specific pager overrides core.pager' '
 419         sane_unset PAGER GIT_PAGER &&
 420         echo "foo:initial" >expect &&
 421         >actual &&
 422         test_config core.pager "exit 1" &&
 423         test_config pager.log "sed s/^/foo:/ >actual" &&
 424         test_terminal git log --format=%s -1 &&
 425         test_cmp expect actual
 426 '
 427
 428 test_expect_success TTY 'command-specific pager overridden by environment' '
 429         GIT_PAGER="sed s/^/foo:/ >actual" && export GIT_PAGER &&
 430         >actual &&
 431         echo "foo:initial" >expect &&
 432         test_config pager.log "exit 1" &&
 433         test_terminal git log --format=%s -1 &&
 434         test_cmp expect actual
 435 '
 436
 437 test_expect_success 'setup external command' '
 438         cat >git-external <<-\EOF &&
 439         #!/bin/sh
 440         git "$@"
 441         EOF
 442         chmod +x git-external
 443 '
 444
 445 test_expect_success TTY 'command-specific pager works for external commands' '
 446         sane_unset PAGER GIT_PAGER &&
 447         echo "foo:initial" >expect &&
 448         >actual &&
 449         test_config pager.external "sed s/^/foo:/ >actual" &&
 450         test_terminal git --exec-path="$(pwd)" external log --format=%s -1 &&
 451         test_cmp expect actual
 452 '
 453
 454 test_expect_success TTY 'sub-commands of externals use their own pager' '
 455         sane_unset PAGER GIT_PAGER &&
 456         echo "foo:initial" >expect &&
 457         >actual &&
 458         test_config pager.log "sed s/^/foo:/ >actual" &&
 459         test_terminal git --exec-path=. external log --format=%s -1 &&
 460         test_cmp expect actual
 461 '
 462
 463 test_expect_success TTY 'external command pagers override sub-commands' '
 464         sane_unset PAGER GIT_PAGER &&
 465         >expect &&
 466         >actual &&
 467         test_config pager.external false &&
 468         test_config pager.log "sed s/^/log:/ >actual" &&
 469         test_terminal git --exec-path=. external log --format=%s -1 &&
 470         test_cmp expect actual
 471 '
 472
 473 test_expect_success 'command with underscores does not complain' '
 474         write_script git-under_score <<-\EOF &&
 475         echo ok
 476         EOF
 477         git --exec-path=. under_score >actual 2>&1 &&
 478         echo ok >expect &&
 479         test_cmp expect actual
 480 '
 481
 482 test_done