t/t7006-pager.sh

   1 #!/bin/sh
   2
   3 test_description='Test automatic use of a pager.'
   4
   5 . ./test-lib.sh
   6
   7 rm -f stdout_is_tty
   8 test_expect_success 'set up terminal for tests' '
   9         if test -t 1
  10         then
  11                 : > stdout_is_tty
  12         elif
  13                 test_have_prereq PERL &&
  14                 "$PERL_PATH" "$TEST_DIRECTORY"/t7006/test-terminal.perl \
  15                         sh -c "test -t 1"
  16         then
  17                 : > test_terminal_works
  18         fi
  19 '
  20
  21 if test -e stdout_is_tty
  22 then
  23         test_terminal() { "$@"; }
  24         test_set_prereq TTY
  25 elif test -e test_terminal_works
  26 then
  27         test_terminal() {
  28                 "$PERL_PATH" "$TEST_DIRECTORY"/t7006/test-terminal.perl "$@"
  29         }
  30         test_set_prereq TTY
  31 else
  32         say no usable terminal, so skipping some tests
  33 fi
  34
  35 unset GIT_PAGER GIT_PAGER_IN_USE
  36 git config --unset core.pager
  37 PAGER='cat > paginated.out'
  38 export PAGER
  39
  40 test_expect_success 'setup' '
  41         test_commit initial
  42 '
  43
  44 rm -f paginated.out
  45 test_expect_success TTY 'some commands use a pager' '
  46         test_terminal git log &&
  47         test -e paginated.out
  48 '
  49
  50 rm -f paginated.out
  51 test_expect_success TTY 'some commands do not use a pager' '
  52         test_terminal git rev-list HEAD &&
  53         ! test -e paginated.out
  54 '
  55
  56 rm -f paginated.out
  57 test_expect_success 'no pager when stdout is a pipe' '
  58         git log | cat &&
  59         ! test -e paginated.out
  60 '
  61
  62 rm -f paginated.out
  63 test_expect_success 'no pager when stdout is a regular file' '
  64         git log > file &&
  65         ! test -e paginated.out
  66 '
  67
  68 rm -f paginated.out
  69 test_expect_success TTY 'git --paginate rev-list uses a pager' '
  70         test_terminal git --paginate rev-list HEAD &&
  71         test -e paginated.out
  72 '
  73
  74 rm -f file paginated.out
  75 test_expect_success 'no pager even with --paginate when stdout is a pipe' '
  76         git --paginate log | cat &&
  77         ! test -e paginated.out
  78 '
  79
  80 rm -f paginated.out
  81 test_expect_success TTY 'no pager with --no-pager' '
  82         test_terminal git --no-pager log &&
  83         ! test -e paginated.out
  84 '
  85
  86 # A colored commit log will begin with an appropriate ANSI escape
  87 # for the first color; the text "commit" comes later.
  88 colorful() {
  89         read firstline < $1
  90         ! expr "$firstline" : "^[a-zA-Z]" >/dev/null
  91 }
  92
  93 rm -f colorful.log colorless.log
  94 test_expect_success 'tests can detect color' '
  95         git log --no-color > colorless.log &&
  96         git log --color > colorful.log &&
  97         ! colorful colorless.log &&
  98         colorful colorful.log
  99 '
 100
 101 rm -f colorless.log
 102 git config color.ui auto
 103 test_expect_success 'no color when stdout is a regular file' '
 104         git log > colorless.log &&
 105         ! colorful colorless.log
 106 '
 107
 108 rm -f paginated.out
 109 git config color.ui auto
 110 test_expect_success TTY 'color when writing to a pager' '
 111         TERM=vt100 test_terminal git log &&
 112         colorful paginated.out
 113 '
 114
 115 rm -f colorful.log
 116 git config color.ui auto
 117 test_expect_success 'color when writing to a file intended for a pager' '
 118         TERM=vt100 GIT_PAGER_IN_USE=true git log > colorful.log &&
 119         colorful colorful.log
 120 '
 121
 122 unset PAGER GIT_PAGER
 123 git config --unset core.pager
 124 test_expect_success 'determine default pager' '
 125         less=$(git var GIT_PAGER) &&
 126         test -n "$less"
 127 '
 128
 129 if expr "$less" : '^[a-z]*$' > /dev/null && test_have_prereq TTY
 130 then
 131         test_set_prereq SIMPLEPAGER
 132 fi
 133
 134 unset PAGER GIT_PAGER
 135 git config --unset core.pager
 136 rm -f default_pager_used
 137 test_expect_success SIMPLEPAGER 'default pager is used by default' '
 138         cat > $less <<-EOF &&
 139         #!$SHELL_PATH
 140         wc > default_pager_used
 141         EOF
 142         chmod +x $less &&
 143         PATH=.:$PATH test_terminal git log &&
 144         test -e default_pager_used
 145 '
 146
 147 unset GIT_PAGER
 148 git config --unset core.pager
 149 rm -f PAGER_used
 150 test_expect_success TTY 'PAGER overrides default pager' '
 151         PAGER="wc > PAGER_used" &&
 152         export PAGER &&
 153         test_terminal git log &&
 154         test -e PAGER_used
 155 '
 156
 157 unset GIT_PAGER
 158 rm -f core.pager_used
 159 test_expect_success TTY 'core.pager overrides PAGER' '
 160         PAGER=wc &&
 161         export PAGER &&
 162         git config core.pager "wc > core.pager_used" &&
 163         test_terminal git log &&
 164         test -e core.pager_used
 165 '
 166
 167 rm -f GIT_PAGER_used
 168 test_expect_success TTY 'GIT_PAGER overrides core.pager' '
 169         git config core.pager wc &&
 170         GIT_PAGER="wc > GIT_PAGER_used" &&
 171         export GIT_PAGER &&
 172         test_terminal git log &&
 173         test -e GIT_PAGER_used
 174 '
 175
 176 test_done