t/t3210-pack-refs.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2005 Amos Waterland
   4 # Copyright (c) 2006 Christian Couder
   5 #
   6
   7 test_description='git pack-refs should not change the branch semantic
   8
   9 This test runs git pack-refs and git show-ref and checks that the branch
  10 semantic is still the same.
  11 '
  12 . ./test-lib.sh
  13
  14 echo '[core] logallrefupdates = true' >>.git/config
  15
  16 test_expect_success \
  17     'prepare a trivial repository' \
  18     'echo Hello > A &&
  19      git update-index --add A &&
  20      git commit -m "Initial commit." &&
  21      HEAD=$(git rev-parse --verify HEAD)'
  22
  23 SHA1=
  24
  25 test_expect_success \
  26     'see if git show-ref works as expected' \
  27     'git branch a &&
  28      SHA1=`cat .git/refs/heads/a` &&
  29      echo "$SHA1 refs/heads/a" >expect &&
  30      git show-ref a >result &&
  31      test_cmp expect result'
  32
  33 test_expect_success \
  34     'see if a branch still exists when packed' \
  35     'git branch b &&
  36      git pack-refs --all &&
  37      rm -f .git/refs/heads/b &&
  38      echo "$SHA1 refs/heads/b" >expect &&
  39      git show-ref b >result &&
  40      test_cmp expect result'
  41
  42 test_expect_success 'git branch c/d should barf if branch c exists' '
  43      git branch c &&
  44      git pack-refs --all &&
  45      rm -f .git/refs/heads/c &&
  46      test_must_fail git branch c/d
  47 '
  48
  49 test_expect_success \
  50     'see if a branch still exists after git pack-refs --prune' \
  51     'git branch e &&
  52      git pack-refs --all --prune &&
  53      echo "$SHA1 refs/heads/e" >expect &&
  54      git show-ref e >result &&
  55      test_cmp expect result'
  56
  57 test_expect_success 'see if git pack-refs --prune remove ref files' '
  58      git branch f &&
  59      git pack-refs --all --prune &&
  60      ! test -f .git/refs/heads/f
  61 '
  62
  63 test_expect_success 'see if git pack-refs --prune removes empty dirs' '
  64      git branch r/s/t &&
  65      git pack-refs --all --prune &&
  66      ! test -e .git/refs/heads/r
  67 '
  68
  69 test_expect_success \
  70     'git branch g should work when git branch g/h has been deleted' \
  71     'git branch g/h &&
  72      git pack-refs --all --prune &&
  73      git branch -d g/h &&
  74      git branch g &&
  75      git pack-refs --all &&
  76      git branch -d g'
  77
  78 test_expect_success 'git branch i/j/k should barf if branch i exists' '
  79      git branch i &&
  80      git pack-refs --all --prune &&
  81      test_must_fail git branch i/j/k
  82 '
  83
  84 test_expect_success \
  85     'test git branch k after branch k/l/m and k/lm have been deleted' \
  86     'git branch k/l &&
  87      git branch k/lm &&
  88      git branch -d k/l &&
  89      git branch k/l/m &&
  90      git branch -d k/l/m &&
  91      git branch -d k/lm &&
  92      git branch k'
  93
  94 test_expect_success \
  95     'test git branch n after some branch deletion and pruning' \
  96     'git branch n/o &&
  97      git branch n/op &&
  98      git branch -d n/o &&
  99      git branch n/o/p &&
 100      git branch -d n/op &&
 101      git pack-refs --all --prune &&
 102      git branch -d n/o/p &&
 103      git branch n'
 104
 105 test_expect_success \
 106         'see if up-to-date packed refs are preserved' \
 107         'git branch q &&
 108          git pack-refs --all --prune &&
 109          git update-ref refs/heads/q refs/heads/q &&
 110          ! test -f .git/refs/heads/q'
 111
 112 test_expect_success 'pack, prune and repack' '
 113         git tag foo &&
 114         git pack-refs --all --prune &&
 115         git show-ref >all-of-them &&
 116         git pack-refs &&
 117         git show-ref >again &&
 118         test_cmp all-of-them again
 119 '
 120
 121 test_expect_success 'explicit pack-refs with dangling packed reference' '
 122         git commit --allow-empty -m "soon to be garbage-collected" &&
 123         git pack-refs --all &&
 124         git reset --hard HEAD^ &&
 125         git reflog expire --expire=all --all &&
 126         git prune --expire=all &&
 127         git pack-refs --all 2>result &&
 128         test_cmp /dev/null result
 129 '
 130
 131 test_expect_success 'delete ref with dangling packed version' '
 132         git checkout -b lamb &&
 133         git commit --allow-empty -m "future garbage" &&
 134         git pack-refs --all &&
 135         git reset --hard HEAD^ &&
 136         git checkout master &&
 137         git reflog expire --expire=all --all &&
 138         git prune --expire=all &&
 139         git branch -d lamb 2>result &&
 140         test_cmp /dev/null result
 141 '
 142
 143 test_expect_success 'delete ref while another dangling packed ref' '
 144         git branch lamb &&
 145         git commit --allow-empty -m "future garbage" &&
 146         git pack-refs --all &&
 147         git reset --hard HEAD^ &&
 148         git reflog expire --expire=all --all &&
 149         git prune --expire=all &&
 150         git branch -d lamb 2>result &&
 151         test_cmp /dev/null result
 152 '
 153
 154 test_expect_success 'pack ref directly below refs/' '
 155         git update-ref refs/top HEAD &&
 156         git pack-refs --all --prune &&
 157         grep refs/top .git/packed-refs &&
 158         test_path_is_missing .git/refs/top
 159 '
 160
 161 test_done