t/t1409-avoid-packing-refs.sh

   1 #!/bin/sh
   2
   3 test_description='avoid rewriting packed-refs unnecessarily'
   4
   5 TEST_PASSES_SANITIZE_LEAK=true
   6 . ./test-lib.sh
   7
   8 # Add an identifying mark to the packed-refs file header line. This
   9 # shouldn't upset readers, and it should be omitted if the file is
  10 # ever rewritten.
  11 mark_packed_refs () {
  12         sed -e "s/^\(#.*\)/\1 t1409 /" .git/packed-refs >.git/packed-refs.new &&
  13         mv .git/packed-refs.new .git/packed-refs
  14 }
  15
  16 # Verify that the packed-refs file is still marked.
  17 check_packed_refs_marked () {
  18         grep -q '^#.* t1409 ' .git/packed-refs
  19 }
  20
  21 test_expect_success 'setup' '
  22         git commit --allow-empty -m "Commit A" &&
  23         A=$(git rev-parse HEAD) &&
  24         git commit --allow-empty -m "Commit B" &&
  25         B=$(git rev-parse HEAD) &&
  26         git commit --allow-empty -m "Commit C" &&
  27         C=$(git rev-parse HEAD)
  28 '
  29
  30 test_expect_success 'do not create packed-refs file gratuitously' '
  31         test_path_is_missing .git/packed-refs &&
  32         git update-ref refs/heads/foo $A &&
  33         test_path_is_missing .git/packed-refs &&
  34         git update-ref refs/heads/foo $B &&
  35         test_path_is_missing .git/packed-refs &&
  36         git update-ref refs/heads/foo $C $B &&
  37         test_path_is_missing .git/packed-refs &&
  38         git update-ref -d refs/heads/foo &&
  39         test_path_is_missing .git/packed-refs
  40 '
  41
  42 test_expect_success 'check that marking the packed-refs file works' '
  43         git for-each-ref >expected &&
  44         git pack-refs --all &&
  45         mark_packed_refs &&
  46         check_packed_refs_marked &&
  47         git for-each-ref >actual &&
  48         test_cmp expected actual &&
  49         git pack-refs --all &&
  50         ! check_packed_refs_marked &&
  51         git for-each-ref >actual2 &&
  52         test_cmp expected actual2
  53 '
  54
  55 test_expect_success 'leave packed-refs untouched on update of packed' '
  56         git update-ref refs/heads/packed-update $A &&
  57         git pack-refs --all &&
  58         mark_packed_refs &&
  59         git update-ref refs/heads/packed-update $B &&
  60         check_packed_refs_marked
  61 '
  62
  63 test_expect_success 'leave packed-refs untouched on checked update of packed' '
  64         git update-ref refs/heads/packed-checked-update $A &&
  65         git pack-refs --all &&
  66         mark_packed_refs &&
  67         git update-ref refs/heads/packed-checked-update $B $A &&
  68         check_packed_refs_marked
  69 '
  70
  71 test_expect_success 'leave packed-refs untouched on verify of packed' '
  72         git update-ref refs/heads/packed-verify $A &&
  73         git pack-refs --all &&
  74         mark_packed_refs &&
  75         echo "verify refs/heads/packed-verify $A" | git update-ref --stdin &&
  76         check_packed_refs_marked
  77 '
  78
  79 test_expect_success 'touch packed-refs on delete of packed' '
  80         git update-ref refs/heads/packed-delete $A &&
  81         git pack-refs --all &&
  82         mark_packed_refs &&
  83         git update-ref -d refs/heads/packed-delete &&
  84         ! check_packed_refs_marked
  85 '
  86
  87 test_expect_success 'leave packed-refs untouched on update of loose' '
  88         git pack-refs --all &&
  89         git update-ref refs/heads/loose-update $A &&
  90         mark_packed_refs &&
  91         git update-ref refs/heads/loose-update $B &&
  92         check_packed_refs_marked
  93 '
  94
  95 test_expect_success 'leave packed-refs untouched on checked update of loose' '
  96         git pack-refs --all &&
  97         git update-ref refs/heads/loose-checked-update $A &&
  98         mark_packed_refs &&
  99         git update-ref refs/heads/loose-checked-update $B $A &&
 100         check_packed_refs_marked
 101 '
 102
 103 test_expect_success 'leave packed-refs untouched on verify of loose' '
 104         git pack-refs --all &&
 105         git update-ref refs/heads/loose-verify $A &&
 106         mark_packed_refs &&
 107         echo "verify refs/heads/loose-verify $A" | git update-ref --stdin &&
 108         check_packed_refs_marked
 109 '
 110
 111 test_expect_success 'leave packed-refs untouched on delete of loose' '
 112         git pack-refs --all &&
 113         git update-ref refs/heads/loose-delete $A &&
 114         mark_packed_refs &&
 115         git update-ref -d refs/heads/loose-delete &&
 116         check_packed_refs_marked
 117 '
 118
 119 test_done