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-rwxr-xr-xt/t7006-pager.sh489
1 files changed, 489 insertions, 0 deletions
diff --git a/t/t7006-pager.sh b/t/t7006-pager.sh
new file mode 100755
index 0000000000..320e1d1dbe
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+++ b/t/t7006-pager.sh
@@ -0,0 +1,489 @@
+#!/bin/sh
+
+test_description='Test automatic use of a pager.'
+
+. ./test-lib.sh
+. "$TEST_DIRECTORY"/lib-pager.sh
+. "$TEST_DIRECTORY"/lib-terminal.sh
+
+cleanup_fail() {
+ echo >&2 cleanup failed
+ (exit 1)
+}
+
+test_expect_success 'setup' '
+ sane_unset GIT_PAGER GIT_PAGER_IN_USE &&
+ test_unconfig core.pager &&
+
+ PAGER="cat >paginated.out" &&
+ export PAGER &&
+
+ test_commit initial
+'
+
+test_expect_success TTY 'some commands use a pager' '
+ rm -f paginated.out ||
+ cleanup_fail &&
+
+ test_terminal git log &&
+ test -e paginated.out
+'
+
+test_expect_failure TTY 'pager runs from subdir' '
+ echo subdir/paginated.out >expected &&
+ mkdir -p subdir &&
+ rm -f paginated.out subdir/paginated.out &&
+ (
+ cd subdir &&
+ test_terminal git log
+ ) &&
+ {
+ ls paginated.out subdir/paginated.out ||
+ :
+ } >actual &&
+ test_cmp expected actual
+'
+
+test_expect_success TTY 'some commands do not use a pager' '
+ rm -f paginated.out ||
+ cleanup_fail &&
+
+ test_terminal git rev-list HEAD &&
+ ! test -e paginated.out
+'
+
+test_expect_success 'no pager when stdout is a pipe' '
+ rm -f paginated.out ||
+ cleanup_fail &&
+
+ git log | cat &&
+ ! test -e paginated.out
+'
+
+test_expect_success 'no pager when stdout is a regular file' '
+ rm -f paginated.out ||
+ cleanup_fail &&
+
+ git log >file &&
+ ! test -e paginated.out
+'
+
+test_expect_success TTY 'git --paginate rev-list uses a pager' '
+ rm -f paginated.out ||
+ cleanup_fail &&
+
+ test_terminal git --paginate rev-list HEAD &&
+ test -e paginated.out
+'
+
+test_expect_success 'no pager even with --paginate when stdout is a pipe' '
+ rm -f file paginated.out ||
+ cleanup_fail &&
+
+ git --paginate log | cat &&
+ ! test -e paginated.out
+'
+
+test_expect_success TTY 'no pager with --no-pager' '
+ rm -f paginated.out ||
+ cleanup_fail &&
+
+ test_terminal git --no-pager log &&
+ ! test -e paginated.out
+'
+
+test_expect_success TTY 'configuration can disable pager' '
+ rm -f paginated.out &&
+ test_unconfig pager.grep &&
+ test_terminal git grep initial &&
+ test -e paginated.out &&
+
+ rm -f paginated.out &&
+ test_config pager.grep false &&
+ test_terminal git grep initial &&
+ ! test -e paginated.out
+'
+
+test_expect_success TTY 'git config uses a pager if configured to' '
+ rm -f paginated.out &&
+ test_config pager.config true &&
+ test_terminal git config --list &&
+ test -e paginated.out
+'
+
+test_expect_success TTY 'configuration can enable pager (from subdir)' '
+ rm -f paginated.out &&
+ mkdir -p subdir &&
+ test_config pager.bundle true &&
+
+ git bundle create test.bundle --all &&
+ rm -f paginated.out subdir/paginated.out &&
+ (
+ cd subdir &&
+ test_terminal git bundle unbundle ../test.bundle
+ ) &&
+ {
+ test -e paginated.out ||
+ test -e subdir/paginated.out
+ }
+'
+
+# A colored commit log will begin with an appropriate ANSI escape
+# for the first color; the text "commit" comes later.
+colorful() {
+ read firstline <$1
+ ! expr "$firstline" : "[a-zA-Z]" >/dev/null
+}
+
+test_expect_success 'tests can detect color' '
+ rm -f colorful.log colorless.log ||
+ cleanup_fail &&
+
+ git log --no-color >colorless.log &&
+ git log --color >colorful.log &&
+ ! colorful colorless.log &&
+ colorful colorful.log
+'
+
+test_expect_success 'no color when stdout is a regular file' '
+ rm -f colorless.log &&
+ test_config color.ui auto ||
+ cleanup_fail &&
+
+ git log >colorless.log &&
+ ! colorful colorless.log
+'
+
+test_expect_success TTY 'color when writing to a pager' '
+ rm -f paginated.out &&
+ test_config color.ui auto ||
+ cleanup_fail &&
+
+ (
+ TERM=vt100 &&
+ export TERM &&
+ test_terminal git log
+ ) &&
+ colorful paginated.out
+'
+
+test_expect_success TTY 'colors are suppressed by color.pager' '
+ rm -f paginated.out &&
+ test_config color.ui auto &&
+ test_config color.pager false &&
+ (
+ TERM=vt100 &&
+ export TERM &&
+ test_terminal git log
+ ) &&
+ ! colorful paginated.out
+'
+
+test_expect_success 'color when writing to a file intended for a pager' '
+ rm -f colorful.log &&
+ test_config color.ui auto ||
+ cleanup_fail &&
+
+ (
+ TERM=vt100 &&
+ GIT_PAGER_IN_USE=true &&
+ export TERM GIT_PAGER_IN_USE &&
+ git log >colorful.log
+ ) &&
+ colorful colorful.log
+'
+
+test_expect_success TTY 'colors are sent to pager for external commands' '
+ test_config alias.externallog "!git log" &&
+ test_config color.ui auto &&
+ (
+ TERM=vt100 &&
+ export TERM &&
+ test_terminal git -p externallog
+ ) &&
+ colorful paginated.out
+'
+
+# Use this helper to make it easy for the caller of your
+# terminal-using function to specify whether it should fail.
+# If you write
+#
+# your_test() {
+# parse_args "$@"
+#
+# $test_expectation "$cmd - behaves well" "
+# ...
+# $full_command &&
+# ...
+# "
+# }
+#
+# then your test can be used like this:
+#
+# your_test expect_(success|failure) [test_must_fail] 'git foo'
+#
+parse_args() {
+ test_expectation="test_$1"
+ shift
+ if test "$1" = test_must_fail
+ then
+ full_command="test_must_fail test_terminal "
+ shift
+ else
+ full_command="test_terminal "
+ fi
+ cmd=$1
+ full_command="$full_command $1"
+}
+
+test_default_pager() {
+ parse_args "$@"
+
+ $test_expectation SIMPLEPAGER,TTY "$cmd - default pager is used by default" "
+ sane_unset PAGER GIT_PAGER &&
+ test_unconfig core.pager &&
+ rm -f default_pager_used ||
+ cleanup_fail &&
+
+ cat >\$less <<-\EOF &&
+ #!/bin/sh
+ wc >default_pager_used
+ EOF
+ chmod +x \$less &&
+ (
+ PATH=.:\$PATH &&
+ export PATH &&
+ $full_command
+ ) &&
+ test -e default_pager_used
+ "
+}
+
+test_PAGER_overrides() {
+ parse_args "$@"
+
+ $test_expectation TTY "$cmd - PAGER overrides default pager" "
+ sane_unset GIT_PAGER &&
+ test_unconfig core.pager &&
+ rm -f PAGER_used ||
+ cleanup_fail &&
+
+ PAGER='wc >PAGER_used' &&
+ export PAGER &&
+ $full_command &&
+ test -e PAGER_used
+ "
+}
+
+test_core_pager_overrides() {
+ if_local_config=
+ used_if_wanted='overrides PAGER'
+ test_core_pager "$@"
+}
+
+test_local_config_ignored() {
+ if_local_config='! '
+ used_if_wanted='is not used'
+ test_core_pager "$@"
+}
+
+test_core_pager() {
+ parse_args "$@"
+
+ $test_expectation TTY "$cmd - repository-local core.pager setting $used_if_wanted" "
+ sane_unset GIT_PAGER &&
+ rm -f core.pager_used ||
+ cleanup_fail &&
+
+ PAGER=wc &&
+ export PAGER &&
+ test_config core.pager 'wc >core.pager_used' &&
+ $full_command &&
+ ${if_local_config}test -e core.pager_used
+ "
+}
+
+test_core_pager_subdir() {
+ if_local_config=
+ used_if_wanted='overrides PAGER'
+ test_pager_subdir_helper "$@"
+}
+
+test_no_local_config_subdir() {
+ if_local_config='! '
+ used_if_wanted='is not used'
+ test_pager_subdir_helper "$@"
+}
+
+test_pager_subdir_helper() {
+ parse_args "$@"
+
+ $test_expectation TTY "$cmd - core.pager $used_if_wanted from subdirectory" "
+ sane_unset GIT_PAGER &&
+ rm -f core.pager_used &&
+ rm -fr sub ||
+ cleanup_fail &&
+
+ PAGER=wc &&
+ stampname=\$(pwd)/core.pager_used &&
+ export PAGER stampname &&
+ test_config core.pager 'wc >\"\$stampname\"' &&
+ mkdir sub &&
+ (
+ cd sub &&
+ $full_command
+ ) &&
+ ${if_local_config}test -e core.pager_used
+ "
+}
+
+test_GIT_PAGER_overrides() {
+ parse_args "$@"
+
+ $test_expectation TTY "$cmd - GIT_PAGER overrides core.pager" "
+ rm -f GIT_PAGER_used ||
+ cleanup_fail &&
+
+ test_config core.pager wc &&
+ GIT_PAGER='wc >GIT_PAGER_used' &&
+ export GIT_PAGER &&
+ $full_command &&
+ test -e GIT_PAGER_used
+ "
+}
+
+test_doesnt_paginate() {
+ parse_args "$@"
+
+ $test_expectation TTY "no pager for '$cmd'" "
+ rm -f GIT_PAGER_used ||
+ cleanup_fail &&
+
+ GIT_PAGER='wc >GIT_PAGER_used' &&
+ export GIT_PAGER &&
+ $full_command &&
+ ! test -e GIT_PAGER_used
+ "
+}
+
+test_pager_choices() {
+ test_default_pager expect_success "$@"
+ test_PAGER_overrides expect_success "$@"
+ test_core_pager_overrides expect_success "$@"
+ test_core_pager_subdir expect_success "$@"
+ test_GIT_PAGER_overrides expect_success "$@"
+}
+
+test_expect_success 'setup: some aliases' '
+ git config alias.aliasedlog log &&
+ git config alias.true "!true"
+'
+
+test_pager_choices 'git log'
+test_pager_choices 'git -p log'
+test_pager_choices 'git aliasedlog'
+
+test_default_pager expect_success 'git -p aliasedlog'
+test_PAGER_overrides expect_success 'git -p aliasedlog'
+test_core_pager_overrides expect_success 'git -p aliasedlog'
+test_core_pager_subdir expect_failure 'git -p aliasedlog'
+test_GIT_PAGER_overrides expect_success 'git -p aliasedlog'
+
+test_default_pager expect_success 'git -p true'
+test_PAGER_overrides expect_success 'git -p true'
+test_core_pager_overrides expect_success 'git -p true'
+test_core_pager_subdir expect_failure 'git -p true'
+test_GIT_PAGER_overrides expect_success 'git -p true'
+
+test_default_pager expect_success test_must_fail 'git -p request-pull'
+test_PAGER_overrides expect_success test_must_fail 'git -p request-pull'
+test_core_pager_overrides expect_success test_must_fail 'git -p request-pull'
+test_core_pager_subdir expect_failure test_must_fail 'git -p request-pull'
+test_GIT_PAGER_overrides expect_success test_must_fail 'git -p request-pull'
+
+test_default_pager expect_success test_must_fail 'git -p'
+test_PAGER_overrides expect_success test_must_fail 'git -p'
+test_local_config_ignored expect_failure test_must_fail 'git -p'
+test_no_local_config_subdir expect_success test_must_fail 'git -p'
+test_GIT_PAGER_overrides expect_success test_must_fail 'git -p'
+
+test_doesnt_paginate expect_failure test_must_fail 'git -p nonsense'
+
+test_pager_choices 'git shortlog'
+test_expect_success 'setup: configure shortlog not to paginate' '
+ git config pager.shortlog false
+'
+test_doesnt_paginate expect_success 'git shortlog'
+test_no_local_config_subdir expect_success 'git shortlog'
+test_default_pager expect_success 'git -p shortlog'
+test_core_pager_subdir expect_success 'git -p shortlog'
+
+test_core_pager_subdir expect_success test_must_fail \
+ 'git -p apply </dev/null'
+
+test_expect_success TTY 'command-specific pager' '
+ sane_unset PAGER GIT_PAGER &&
+ echo "foo:initial" >expect &&
+ >actual &&
+ test_unconfig core.pager &&
+ test_config pager.log "sed s/^/foo:/ >actual" &&
+ test_terminal git log --format=%s -1 &&
+ test_cmp expect actual
+'
+
+test_expect_success TTY 'command-specific pager overrides core.pager' '
+ sane_unset PAGER GIT_PAGER &&
+ echo "foo:initial" >expect &&
+ >actual &&
+ test_config core.pager "exit 1"
+ test_config pager.log "sed s/^/foo:/ >actual" &&
+ test_terminal git log --format=%s -1 &&
+ test_cmp expect actual
+'
+
+test_expect_success TTY 'command-specific pager overridden by environment' '
+ GIT_PAGER="sed s/^/foo:/ >actual" && export GIT_PAGER &&
+ >actual &&
+ echo "foo:initial" >expect &&
+ test_config pager.log "exit 1" &&
+ test_terminal git log --format=%s -1 &&
+ test_cmp expect actual
+'
+
+test_expect_success 'setup external command' '
+ cat >git-external <<-\EOF &&
+ #!/bin/sh
+ git "$@"
+ EOF
+ chmod +x git-external
+'
+
+test_expect_success TTY 'command-specific pager works for external commands' '
+ sane_unset PAGER GIT_PAGER &&
+ echo "foo:initial" >expect &&
+ >actual &&
+ test_config pager.external "sed s/^/foo:/ >actual" &&
+ test_terminal git --exec-path="`pwd`" external log --format=%s -1 &&
+ test_cmp expect actual
+'
+
+test_expect_success TTY 'sub-commands of externals use their own pager' '
+ sane_unset PAGER GIT_PAGER &&
+ echo "foo:initial" >expect &&
+ >actual &&
+ test_config pager.log "sed s/^/foo:/ >actual" &&
+ test_terminal git --exec-path=. external log --format=%s -1 &&
+ test_cmp expect actual
+'
+
+test_expect_success TTY 'external command pagers override sub-commands' '
+ sane_unset PAGER GIT_PAGER &&
+ >expect &&
+ >actual &&
+ test_config pager.external false &&
+ test_config pager.log "sed s/^/log:/ >actual" &&
+ test_terminal git --exec-path=. external log --format=%s -1 &&
+ test_cmp expect actual
+'
+
+test_done