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