Andrew's git - gitweb.git/blob - t/t3210-pack-refs.sh

   1#!/bin/sh
   2#
   3# Copyright (c) 2005 Amos Waterland
   4# Copyright (c) 2006 Christian Couder
   5#
   6
   7test_description='git pack-refs should not change the branch semantic
   8
   9This test runs git pack-refs and git show-ref and checks that the branch
  10semantic is still the same.
  11'
  12. ./test-lib.sh
  13
  14test_expect_success 'enable reflogs' '
  15        git config core.logallrefupdates true
  16'
  17
  18test_expect_success \
  19    'prepare a trivial repository' \
  20    'echo Hello > A &&
  21     git update-index --add A &&
  22     git commit -m "Initial commit." &&
  23     HEAD=$(git rev-parse --verify HEAD)'
  24
  25SHA1=
  26
  27test_expect_success \
  28    'see if git show-ref works as expected' \
  29    'git branch a &&
  30     SHA1=$(cat .git/refs/heads/a) &&
  31     echo "$SHA1 refs/heads/a" >expect &&
  32     git show-ref a >result &&
  33     test_cmp expect result'
  34
  35test_expect_success \
  36    'see if a branch still exists when packed' \
  37    'git branch b &&
  38     git pack-refs --all &&
  39     rm -f .git/refs/heads/b &&
  40     echo "$SHA1 refs/heads/b" >expect &&
  41     git show-ref b >result &&
  42     test_cmp expect result'
  43
  44test_expect_success 'git branch c/d should barf if branch c exists' '
  45     git branch c &&
  46     git pack-refs --all &&
  47     rm -f .git/refs/heads/c &&
  48     test_must_fail git branch c/d
  49'
  50
  51test_expect_success \
  52    'see if a branch still exists after git pack-refs --prune' \
  53    'git branch e &&
  54     git pack-refs --all --prune &&
  55     echo "$SHA1 refs/heads/e" >expect &&
  56     git show-ref e >result &&
  57     test_cmp expect result'
  58
  59test_expect_success 'see if git pack-refs --prune remove ref files' '
  60     git branch f &&
  61     git pack-refs --all --prune &&
  62     ! test -f .git/refs/heads/f
  63'
  64
  65test_expect_success 'see if git pack-refs --prune removes empty dirs' '
  66     git branch r/s/t &&
  67     git pack-refs --all --prune &&
  68     ! test -e .git/refs/heads/r
  69'
  70
  71test_expect_success \
  72    'git branch g should work when git branch g/h has been deleted' \
  73    'git branch g/h &&
  74     git pack-refs --all --prune &&
  75     git branch -d g/h &&
  76     git branch g &&
  77     git pack-refs --all &&
  78     git branch -d g'
  79
  80test_expect_success 'git branch i/j/k should barf if branch i exists' '
  81     git branch i &&
  82     git pack-refs --all --prune &&
  83     test_must_fail git branch i/j/k
  84'
  85
  86test_expect_success \
  87    'test git branch k after branch k/l/m and k/lm have been deleted' \
  88    'git branch k/l &&
  89     git branch k/lm &&
  90     git branch -d k/l &&
  91     git branch k/l/m &&
  92     git branch -d k/l/m &&
  93     git branch -d k/lm &&
  94     git branch k'
  95
  96test_expect_success \
  97    'test git branch n after some branch deletion and pruning' \
  98    'git branch n/o &&
  99     git branch n/op &&
 100     git branch -d n/o &&
 101     git branch n/o/p &&
 102     git branch -d n/op &&
 103     git pack-refs --all --prune &&
 104     git branch -d n/o/p &&
 105     git branch n'
 106
 107test_expect_success \
 108        'see if up-to-date packed refs are preserved' \
 109        'git branch q &&
 110         git pack-refs --all --prune &&
 111         git update-ref refs/heads/q refs/heads/q &&
 112         ! test -f .git/refs/heads/q'
 113
 114test_expect_success 'pack, prune and repack' '
 115        git tag foo &&
 116        git pack-refs --all --prune &&
 117        git show-ref >all-of-them &&
 118        git pack-refs &&
 119        git show-ref >again &&
 120        test_cmp all-of-them again
 121'
 122
 123test_expect_success 'explicit pack-refs with dangling packed reference' '
 124        git commit --allow-empty -m "soon to be garbage-collected" &&
 125        git pack-refs --all &&
 126        git reset --hard HEAD^ &&
 127        git reflog expire --expire=all --all &&
 128        git prune --expire=all &&
 129        git pack-refs --all 2>result &&
 130        test_cmp /dev/null result
 131'
 132
 133test_expect_success 'delete ref with dangling packed version' '
 134        git checkout -b lamb &&
 135        git commit --allow-empty -m "future garbage" &&
 136        git pack-refs --all &&
 137        git reset --hard HEAD^ &&
 138        git checkout master &&
 139        git reflog expire --expire=all --all &&
 140        git prune --expire=all &&
 141        git branch -d lamb 2>result &&
 142        test_cmp /dev/null result
 143'
 144
 145test_expect_success 'delete ref while another dangling packed ref' '
 146        git branch lamb &&
 147        git commit --allow-empty -m "future garbage" &&
 148        git pack-refs --all &&
 149        git reset --hard HEAD^ &&
 150        git reflog expire --expire=all --all &&
 151        git prune --expire=all &&
 152        git branch -d lamb 2>result &&
 153        test_cmp /dev/null result
 154'
 155
 156test_expect_success 'pack ref directly below refs/' '
 157        git update-ref refs/top HEAD &&
 158        git pack-refs --all --prune &&
 159        grep refs/top .git/packed-refs &&
 160        test_path_is_missing .git/refs/top
 161'
 162
 163test_expect_success 'do not pack ref in refs/bisect' '
 164        git update-ref refs/bisect/local HEAD &&
 165        git pack-refs --all --prune &&
 166        ! grep refs/bisect/local .git/packed-refs >/dev/null &&
 167        test_path_is_file .git/refs/bisect/local
 168'
 169
 170test_expect_success 'disable reflogs' '
 171        git config core.logallrefupdates false &&
 172        rm -rf .git/logs
 173'
 174
 175test_expect_success 'create packed foo/bar/baz branch' '
 176        git branch foo/bar/baz &&
 177        git pack-refs --all --prune &&
 178        test_path_is_missing .git/refs/heads/foo/bar/baz &&
 179        test_must_fail git reflog exists refs/heads/foo/bar/baz
 180'
 181
 182test_expect_success 'notice d/f conflict with existing directory' '
 183        test_must_fail git branch foo &&
 184        test_must_fail git branch foo/bar
 185'
 186
 187test_expect_success 'existing directory reports concrete ref' '
 188        test_must_fail git branch foo 2>stderr &&
 189        grep refs/heads/foo/bar/baz stderr
 190'
 191
 192test_expect_success 'notice d/f conflict with existing ref' '
 193        test_must_fail git branch foo/bar/baz/extra &&
 194        test_must_fail git branch foo/bar/baz/lots/of/extra/components
 195'
 196
 197test_expect_success 'reject packed-refs with unterminated line' '
 198        cp .git/packed-refs .git/packed-refs.bak &&
 199        test_when_finished "mv .git/packed-refs.bak .git/packed-refs" &&
 200        printf "%s" "$HEAD refs/zzzzz" >>.git/packed-refs &&
 201        echo "fatal: unterminated line in .git/packed-refs: $HEAD refs/zzzzz" >expected_err &&
 202        test_must_fail git for-each-ref >out 2>err &&
 203        test_cmp expected_err err
 204'
 205
 206test_expect_success 'reject packed-refs containing junk' '
 207        cp .git/packed-refs .git/packed-refs.bak &&
 208        test_when_finished "mv .git/packed-refs.bak .git/packed-refs" &&
 209        printf "%s\n" "bogus content" >>.git/packed-refs &&
 210        echo "fatal: unexpected line in .git/packed-refs: bogus content" >expected_err &&
 211        test_must_fail git for-each-ref >out 2>err &&
 212        test_cmp expected_err err
 213'
 214
 215test_expect_success 'reject packed-refs with a short SHA-1' '
 216        cp .git/packed-refs .git/packed-refs.bak &&
 217        test_when_finished "mv .git/packed-refs.bak .git/packed-refs" &&
 218        printf "%.7s %s\n" $HEAD refs/zzzzz >>.git/packed-refs &&
 219        printf "fatal: unexpected line in .git/packed-refs: %.7s %s\n" $HEAD refs/zzzzz >expected_err &&
 220        test_must_fail git for-each-ref >out 2>err &&
 221        test_cmp expected_err err
 222'
 223
 224test_expect_success 'timeout if packed-refs.lock exists' '
 225        LOCK=.git/packed-refs.lock &&
 226        >"$LOCK" &&
 227        test_when_finished "rm -f $LOCK" &&
 228        test_must_fail git pack-refs --all --prune
 229'
 230
 231test_expect_success 'retry acquiring packed-refs.lock' '
 232        LOCK=.git/packed-refs.lock &&
 233        >"$LOCK" &&
 234        test_when_finished "wait; rm -f $LOCK" &&
 235        {
 236                ( sleep 1 ; rm -f $LOCK ) &
 237        } &&
 238        git -c core.packedrefstimeout=3000 pack-refs --all --prune
 239'
 240
 241test_expect_success SYMLINKS 'pack symlinked packed-refs' '
 242        # First make sure that symlinking works when reading:
 243        git update-ref refs/heads/loosy refs/heads/master &&
 244        git for-each-ref >all-refs-before &&
 245        mv .git/packed-refs .git/my-deviant-packed-refs &&
 246        ln -s my-deviant-packed-refs .git/packed-refs &&
 247        git for-each-ref >all-refs-linked &&
 248        test_cmp all-refs-before all-refs-linked &&
 249        git pack-refs --all --prune &&
 250        git for-each-ref >all-refs-packed &&
 251        test_cmp all-refs-before all-refs-packed &&
 252        test -h .git/packed-refs &&
 253        test "$(readlink .git/packed-refs)" = "my-deviant-packed-refs"
 254'
 255
 256test_done