t/t7700-repack.sh

   1 #!/bin/sh
   2
   3 test_description='git repack works correctly'
   4
   5 . ./test-lib.sh
   6
   7 test_expect_success 'objects in packs marked .keep are not repacked' '
   8         echo content1 > file1 &&
   9         echo content2 > file2 &&
  10         git add . &&
  11         test_tick &&
  12         git commit -m initial_commit &&
  13         # Create two packs
  14         # The first pack will contain all of the objects except one
  15         git rev-list --objects --all | grep -v file2 |
  16                 git pack-objects pack > /dev/null &&
  17         # The second pack will contain the excluded object
  18         packsha1=$(git rev-list --objects --all | grep file2 |
  19                 git pack-objects pack) &&
  20         touch -r pack-$packsha1.pack pack-$packsha1.keep &&
  21         objsha1=$(git verify-pack -v pack-$packsha1.idx | head -n 1 |
  22                 sed -e "s/^\([0-9a-f]\{40\}\).*/\1/") &&
  23         mv pack-* .git/objects/pack/ &&
  24         git repack -A -d -l &&
  25         git prune-packed &&
  26         for p in .git/objects/pack/*.idx; do
  27                 idx=$(basename $p)
  28                 test "pack-$packsha1.idx" = "$idx" && continue
  29                 if git verify-pack -v $p | egrep "^$objsha1"; then
  30                         found_duplicate_object=1
  31                         echo "DUPLICATE OBJECT FOUND"
  32                         break
  33                 fi
  34         done &&
  35         test -z "$found_duplicate_object"
  36 '
  37
  38 test_expect_success 'loose objects in alternate ODB are not repacked' '
  39         mkdir alt_objects &&
  40         echo `pwd`/alt_objects > .git/objects/info/alternates &&
  41         echo content3 > file3 &&
  42         objsha1=$(GIT_OBJECT_DIRECTORY=alt_objects git hash-object -w file3) &&
  43         git add file3 &&
  44         test_tick &&
  45         git commit -m commit_file3 &&
  46         git repack -a -d -l &&
  47         git prune-packed &&
  48         for p in .git/objects/pack/*.idx; do
  49                 if git verify-pack -v $p | egrep "^$objsha1"; then
  50                         found_duplicate_object=1
  51                         echo "DUPLICATE OBJECT FOUND"
  52                         break
  53                 fi
  54         done &&
  55         test -z "$found_duplicate_object"
  56 '
  57
  58 test_expect_success 'packed obs in alt ODB are repacked even when local repo is packless' '
  59         mkdir alt_objects/pack &&
  60         mv .git/objects/pack/* alt_objects/pack &&
  61         git repack -a &&
  62         myidx=$(ls -1 .git/objects/pack/*.idx) &&
  63         test -f "$myidx" &&
  64         for p in alt_objects/pack/*.idx; do
  65                 git verify-pack -v $p | sed -n -e "/^[0-9a-f]\{40\}/p"
  66         done | while read sha1 rest; do
  67                 if ! ( git verify-pack -v $myidx | grep "^$sha1" ); then
  68                         echo "Missing object in local pack: $sha1"
  69                         return 1
  70                 fi
  71         done
  72 '
  73
  74 test_expect_success 'packed obs in alt ODB are repacked when local repo has packs' '
  75         rm -f .git/objects/pack/* &&
  76         echo new_content >> file1 &&
  77         git add file1 &&
  78         test_tick &&
  79         git commit -m more_content &&
  80         git repack &&
  81         git repack -a -d &&
  82         myidx=$(ls -1 .git/objects/pack/*.idx) &&
  83         test -f "$myidx" &&
  84         for p in alt_objects/pack/*.idx; do
  85                 git verify-pack -v $p | sed -n -e "/^[0-9a-f]\{40\}/p"
  86         done | while read sha1 rest; do
  87                 if ! ( git verify-pack -v $myidx | grep "^$sha1" ); then
  88                         echo "Missing object in local pack: $sha1"
  89                         return 1
  90                 fi
  91         done
  92 '
  93
  94 test_expect_success 'packed obs in alternate ODB kept pack are repacked' '
  95         # swap the .keep so the commit object is in the pack with .keep
  96         for p in alt_objects/pack/*.pack
  97         do
  98                 base_name=$(basename $p .pack) &&
  99                 if test -f alt_objects/pack/$base_name.keep
 100                 then
 101                         rm alt_objects/pack/$base_name.keep
 102                 else
 103                         touch alt_objects/pack/$base_name.keep
 104                 fi
 105         done &&
 106         git repack -a -d &&
 107         myidx=$(ls -1 .git/objects/pack/*.idx) &&
 108         test -f "$myidx" &&
 109         for p in alt_objects/pack/*.idx; do
 110                 git verify-pack -v $p | sed -n -e "/^[0-9a-f]\{40\}/p"
 111         done | while read sha1 rest; do
 112                 if ! ( git verify-pack -v $myidx | grep "^$sha1" ); then
 113                         echo "Missing object in local pack: $sha1"
 114                         return 1
 115                 fi
 116         done
 117 '
 118
 119 test_expect_success 'packed unreachable obs in alternate ODB are not loosened' '
 120         rm -f alt_objects/pack/*.keep &&
 121         mv .git/objects/pack/* alt_objects/pack/ &&
 122         csha1=$(git rev-parse HEAD^{commit}) &&
 123         git reset --hard HEAD^ &&
 124         test_tick &&
 125         git reflog expire --expire=$test_tick --expire-unreachable=$test_tick --all &&
 126         # The pack-objects call on the next line is equivalent to
 127         # git repack -A -d without the call to prune-packed
 128         git pack-objects --honor-pack-keep --non-empty --all --reflog \
 129             --unpack-unreachable </dev/null pack &&
 130         rm -f .git/objects/pack/* &&
 131         mv pack-* .git/objects/pack/ &&
 132         test 0 = $(git verify-pack -v -- .git/objects/pack/*.idx |
 133                 egrep "^$csha1 " | sort | uniq | wc -l) &&
 134         echo > .git/objects/info/alternates &&
 135         test_must_fail git show $csha1
 136 '
 137
 138 test_expect_success 'local packed unreachable obs that exist in alternate ODB are not loosened' '
 139         echo `pwd`/alt_objects > .git/objects/info/alternates &&
 140         echo "$csha1" | git pack-objects --non-empty --all --reflog pack &&
 141         rm -f .git/objects/pack/* &&
 142         mv pack-* .git/objects/pack/ &&
 143         # The pack-objects call on the next line is equivalent to
 144         # git repack -A -d without the call to prune-packed
 145         git pack-objects --honor-pack-keep --non-empty --all --reflog \
 146             --unpack-unreachable </dev/null pack &&
 147         rm -f .git/objects/pack/* &&
 148         mv pack-* .git/objects/pack/ &&
 149         test 0 = $(git verify-pack -v -- .git/objects/pack/*.idx |
 150                 egrep "^$csha1 " | sort | uniq | wc -l) &&
 151         echo > .git/objects/info/alternates &&
 152         test_must_fail git show $csha1
 153 '
 154
 155 test_expect_success 'objects made unreachable by grafts only are kept' '
 156         test_tick &&
 157         git commit --allow-empty -m "commit 4" &&
 158         H0=$(git rev-parse HEAD) &&
 159         H1=$(git rev-parse HEAD^) &&
 160         H2=$(git rev-parse HEAD^^) &&
 161         echo "$H0 $H2" > .git/info/grafts &&
 162         git reflog expire --expire=$test_tick --expire-unreachable=$test_tick --all &&
 163         git repack -a -d &&
 164         git cat-file -t $H1
 165         '
 166
 167 test_done
 168