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 if test_have_prereq !REFFILES
   9 then
  10   skip_all='skipping files-backend specific pack-refs tests'
  11   test_done
  12 fi
  13
  14 # Add an identifying mark to the packed-refs file header line. This
  15 # shouldn't upset readers, and it should be omitted if the file is
  16 # ever rewritten.
  17 mark_packed_refs () {
  18         sed -e "s/^\(#.*\)/\1 t1409 /" .git/packed-refs >.git/packed-refs.new &&
  19         mv .git/packed-refs.new .git/packed-refs
  20 }
  21
  22 # Verify that the packed-refs file is still marked.
  23 check_packed_refs_marked () {
  24         grep -q '^#.* t1409 ' .git/packed-refs
  25 }
  26
  27 test_expect_success 'setup' '
  28         git commit --allow-empty -m "Commit A" &&
  29         A=$(git rev-parse HEAD) &&
  30         git commit --allow-empty -m "Commit B" &&
  31         B=$(git rev-parse HEAD) &&
  32         git commit --allow-empty -m "Commit C" &&
  33         C=$(git rev-parse HEAD)
  34 '
  35
  36 test_expect_success 'do not create packed-refs file gratuitously' '
  37         test_path_is_missing .git/packed-refs &&
  38         git update-ref refs/heads/foo $A &&
  39         test_path_is_missing .git/packed-refs &&
  40         git update-ref refs/heads/foo $B &&
  41         test_path_is_missing .git/packed-refs &&
  42         git update-ref refs/heads/foo $C $B &&
  43         test_path_is_missing .git/packed-refs &&
  44         git update-ref -d refs/heads/foo &&
  45         test_path_is_missing .git/packed-refs
  46 '
  47
  48 test_expect_success 'check that marking the packed-refs file works' '
  49         git for-each-ref >expected &&
  50         git pack-refs --all &&
  51         mark_packed_refs &&
  52         check_packed_refs_marked &&
  53         git for-each-ref >actual &&
  54         test_cmp expected actual &&
  55         git pack-refs --all &&
  56         ! check_packed_refs_marked &&
  57         git for-each-ref >actual2 &&
  58         test_cmp expected actual2
  59 '
  60
  61 test_expect_success 'leave packed-refs untouched on update of packed' '
  62         git update-ref refs/heads/packed-update $A &&
  63         git pack-refs --all &&
  64         mark_packed_refs &&
  65         git update-ref refs/heads/packed-update $B &&
  66         check_packed_refs_marked
  67 '
  68
  69 test_expect_success 'leave packed-refs untouched on checked update of packed' '
  70         git update-ref refs/heads/packed-checked-update $A &&
  71         git pack-refs --all &&
  72         mark_packed_refs &&
  73         git update-ref refs/heads/packed-checked-update $B $A &&
  74         check_packed_refs_marked
  75 '
  76
  77 test_expect_success 'leave packed-refs untouched on verify of packed' '
  78         git update-ref refs/heads/packed-verify $A &&
  79         git pack-refs --all &&
  80         mark_packed_refs &&
  81         echo "verify refs/heads/packed-verify $A" | git update-ref --stdin &&
  82         check_packed_refs_marked
  83 '
  84
  85 test_expect_success 'touch packed-refs on delete of packed' '
  86         git update-ref refs/heads/packed-delete $A &&
  87         git pack-refs --all &&
  88         mark_packed_refs &&
  89         git update-ref -d refs/heads/packed-delete &&
  90         ! check_packed_refs_marked
  91 '
  92
  93 test_expect_success 'leave packed-refs untouched on update of loose' '
  94         git pack-refs --all &&
  95         git update-ref refs/heads/loose-update $A &&
  96         mark_packed_refs &&
  97         git update-ref refs/heads/loose-update $B &&
  98         check_packed_refs_marked
  99 '
 100
 101 test_expect_success 'leave packed-refs untouched on checked update of loose' '
 102         git pack-refs --all &&
 103         git update-ref refs/heads/loose-checked-update $A &&
 104         mark_packed_refs &&
 105         git update-ref refs/heads/loose-checked-update $B $A &&
 106         check_packed_refs_marked
 107 '
 108
 109 test_expect_success 'leave packed-refs untouched on verify of loose' '
 110         git pack-refs --all &&
 111         git update-ref refs/heads/loose-verify $A &&
 112         mark_packed_refs &&
 113         echo "verify refs/heads/loose-verify $A" | git update-ref --stdin &&
 114         check_packed_refs_marked
 115 '
 116
 117 test_expect_success 'leave packed-refs untouched on delete of loose' '
 118         git pack-refs --all &&
 119         git update-ref refs/heads/loose-delete $A &&
 120         mark_packed_refs &&
 121         git update-ref -d refs/heads/loose-delete &&
 122         check_packed_refs_marked
 123 '
 124
 125 test_done