t/t1414-reflog-walk.sh

   1 #!/bin/sh
   2
   3 test_description='various tests of reflog walk (log -g) behavior'
   4 GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main
   5 export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
   6
   7 . ./test-lib.sh
   8
   9 test_expect_success 'set up some reflog entries' '
  10         test_commit one &&
  11         test_commit two &&
  12         git checkout -b side HEAD^ &&
  13         test_commit three &&
  14         git merge --no-commit main &&
  15         echo evil-merge-content >>one.t &&
  16         test_tick &&
  17         git commit --no-edit -a
  18 '
  19
  20 do_walk () {
  21         git log -g --format="%gd %gs" "$@"
  22 }
  23
  24 test_expect_success 'set up expected reflog' '
  25         cat >expect.all <<-EOF
  26         HEAD@{0} commit (merge): Merge branch ${SQ}main${SQ} into side
  27         HEAD@{1} commit: three
  28         HEAD@{2} checkout: moving from main to side
  29         HEAD@{3} commit: two
  30         HEAD@{4} commit (initial): one
  31         EOF
  32 '
  33
  34 test_expect_success 'reflog walk shows expected logs' '
  35         do_walk >actual &&
  36         test_cmp expect.all actual
  37 '
  38
  39 test_expect_success 'reflog can limit with --no-merges' '
  40         grep -v merge expect.all >expect &&
  41         do_walk --no-merges >actual &&
  42         test_cmp expect actual
  43 '
  44
  45 test_expect_success 'reflog can limit with pathspecs' '
  46         grep two expect.all >expect &&
  47         do_walk -- two.t >actual &&
  48         test_cmp expect actual
  49 '
  50
  51 test_expect_success 'pathspec limiting handles merges' '
  52         # we pick up:
  53         #   - the initial commit of one
  54         #   - the checkout back to commit one
  55         #   - the evil merge which touched one
  56         sed -n "1p;3p;5p" expect.all >expect &&
  57         do_walk -- one.t >actual &&
  58         test_cmp expect actual
  59 '
  60
  61 test_expect_success '--parents shows true parents' '
  62         # convert newlines to spaces
  63         echo $(git rev-parse HEAD HEAD^1 HEAD^2) >expect &&
  64         git rev-list -g --parents -1 HEAD >actual &&
  65         test_cmp expect actual
  66 '
  67
  68 test_expect_success 'walking multiple reflogs shows all' '
  69         # We expect to see all entries for all reflogs, but interleaved by
  70         # date, with order on the command line breaking ties. We
  71         # can use "sort" on the separate lists to generate this,
  72         # but note two tricks:
  73         #
  74         #   1. We use "{" as the delimiter, which lets us skip to the reflog
  75         #      date specifier as our second field, and then our "-n" numeric
  76         #      sort ignores the bits after the timestamp.
  77         #
  78         #   2. POSIX leaves undefined whether this is a stable sort or not. So
  79         #      we use "-k 1" to ensure that we see HEAD before main before
  80         #      side when breaking ties.
  81         {
  82                 do_walk --date=unix HEAD &&
  83                 do_walk --date=unix side &&
  84                 do_walk --date=unix main
  85         } >expect.raw &&
  86         sort -t "{" -k 2nr -k 1 <expect.raw >expect &&
  87         do_walk --date=unix HEAD main side >actual &&
  88         test_cmp expect actual
  89 '
  90
  91 test_expect_success 'date-limiting does not interfere with other logs' '
  92         do_walk HEAD@{1979-01-01} HEAD >actual &&
  93         test_cmp expect.all actual
  94 '
  95
  96 test_expect_success 'min/max age uses entry date to limit' '
  97         # Flip between commits one and two so each ref update actually
  98         # does something (and does not get optimized out). We know
  99         # that the timestamps of those commits will be before our "min".
 100
 101         git update-ref -m before refs/heads/minmax one &&
 102
 103         test_tick &&
 104         min=$test_tick &&
 105         git update-ref -m min refs/heads/minmax two &&
 106
 107         test_tick &&
 108         max=$test_tick &&
 109         git update-ref -m max refs/heads/minmax one &&
 110
 111         test_tick &&
 112         git update-ref -m after refs/heads/minmax two &&
 113
 114         cat >expect <<-\EOF &&
 115         max
 116         min
 117         EOF
 118         git log -g --since=$min --until=$max --format=%gs minmax >actual &&
 119         test_cmp expect actual
 120 '
 121
 122 # Create a situation where the reflog and ref database disagree about the latest
 123 # state of HEAD.
 124 test_expect_success 'walk prefers reflog to ref tip' '
 125         test_commit A &&
 126         test_commit B &&
 127         git reflog delete HEAD@{0} &&
 128         head=$(git rev-parse HEAD) &&
 129         git rev-parse A >expect &&
 130         git log -g --format=%H -1 >actual &&
 131         test_cmp expect actual
 132 '
 133
 134 test_expect_success 'rev-list -g complains when there are no reflogs' '
 135         test_must_fail git rev-list -g
 136 '
 137
 138 test_done