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