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   1 #!/bin/sh
   2
   3 test_description='commit graph'
   4 . ./test-lib.sh
   5
   6 test_expect_success 'setup full repo' '
   7         mkdir full &&
   8         cd "$TRASH_DIRECTORY/full" &&
   9         git init &&
  10         git config core.commitGraph true &&
  11         objdir=".git/objects"
  12 '
  13
  14 test_expect_success 'write graph with no packs' '
  15         cd "$TRASH_DIRECTORY/full" &&
  16         git commit-graph write --object-dir . &&
  17         test_path_is_file info/commit-graph
  18 '
  19
  20 test_expect_success 'create commits and repack' '
  21         cd "$TRASH_DIRECTORY/full" &&
  22         for i in $(test_seq 3)
  23         do
  24                 test_commit $i &&
  25                 git branch commits/$i
  26         done &&
  27         git repack
  28 '
  29
  30 graph_git_two_modes() {
  31         git -c core.graph=true $1 >output
  32         git -c core.graph=false $1 >expect
  33         test_cmp output expect
  34 }
  35
  36 graph_git_behavior() {
  37         MSG=$1
  38         DIR=$2
  39         BRANCH=$3
  40         COMPARE=$4
  41         test_expect_success "check normal git operations: $MSG" '
  42                 cd "$TRASH_DIRECTORY/$DIR" &&
  43                 graph_git_two_modes "log --oneline $BRANCH" &&
  44                 graph_git_two_modes "log --topo-order $BRANCH" &&
  45                 graph_git_two_modes "log --graph $COMPARE..$BRANCH" &&
  46                 graph_git_two_modes "branch -vv" &&
  47                 graph_git_two_modes "merge-base -a $BRANCH $COMPARE"
  48         '
  49 }
  50
  51 graph_git_behavior 'no graph' full commits/3 commits/1
  52
  53 graph_read_expect() {
  54         OPTIONAL=""
  55         NUM_CHUNKS=3
  56         if test ! -z $2
  57         then
  58                 OPTIONAL=" $2"
  59                 NUM_CHUNKS=$((3 + $(echo "$2" | wc -w)))
  60         fi
  61         cat >expect <<- EOF
  62         header: 43475048 1 1 $NUM_CHUNKS 0
  63         num_commits: $1
  64         chunks: oid_fanout oid_lookup commit_metadata$OPTIONAL
  65         EOF
  66         git commit-graph read >output &&
  67         test_cmp expect output
  68 }
  69
  70 test_expect_success 'write graph' '
  71         cd "$TRASH_DIRECTORY/full" &&
  72         graph1=$(git commit-graph write) &&
  73         test_path_is_file $objdir/info/commit-graph &&
  74         graph_read_expect "3"
  75 '
  76
  77 graph_git_behavior 'graph exists' full commits/3 commits/1
  78
  79 test_expect_success 'Add more commits' '
  80         cd "$TRASH_DIRECTORY/full" &&
  81         git reset --hard commits/1 &&
  82         for i in $(test_seq 4 5)
  83         do
  84                 test_commit $i &&
  85                 git branch commits/$i
  86         done &&
  87         git reset --hard commits/2 &&
  88         for i in $(test_seq 6 7)
  89         do
  90                 test_commit $i &&
  91                 git branch commits/$i
  92         done &&
  93         git reset --hard commits/2 &&
  94         git merge commits/4 &&
  95         git branch merge/1 &&
  96         git reset --hard commits/4 &&
  97         git merge commits/6 &&
  98         git branch merge/2 &&
  99         git reset --hard commits/3 &&
 100         git merge commits/5 commits/7 &&
 101         git branch merge/3 &&
 102         git repack
 103 '
 104
 105 # Current graph structure:
 106 #
 107 #   __M3___
 108 #  /   |   \
 109 # 3 M1 5 M2 7
 110 # |/  \|/  \|
 111 # 2    4    6
 112 # |___/____/
 113 # 1
 114
 115 test_expect_success 'write graph with merges' '
 116         cd "$TRASH_DIRECTORY/full" &&
 117         git commit-graph write &&
 118         test_path_is_file $objdir/info/commit-graph &&
 119         graph_read_expect "10" "large_edges"
 120 '
 121
 122 graph_git_behavior 'merge 1 vs 2' full merge/1 merge/2
 123 graph_git_behavior 'merge 1 vs 3' full merge/1 merge/3
 124 graph_git_behavior 'merge 2 vs 3' full merge/2 merge/3
 125
 126 test_expect_success 'Add one more commit' '
 127         cd "$TRASH_DIRECTORY/full" &&
 128         test_commit 8 &&
 129         git branch commits/8 &&
 130         ls $objdir/pack | grep idx >existing-idx &&
 131         git repack &&
 132         ls $objdir/pack| grep idx | grep -v --file=existing-idx >new-idx
 133 '
 134
 135 # Current graph structure:
 136 #
 137 #      8
 138 #      |
 139 #   __M3___
 140 #  /   |   \
 141 # 3 M1 5 M2 7
 142 # |/  \|/  \|
 143 # 2    4    6
 144 # |___/____/
 145 # 1
 146
 147 graph_git_behavior 'mixed mode, commit 8 vs merge 1' full commits/8 merge/1
 148 graph_git_behavior 'mixed mode, commit 8 vs merge 2' full commits/8 merge/2
 149
 150 test_expect_success 'write graph with new commit' '
 151         cd "$TRASH_DIRECTORY/full" &&
 152         git commit-graph write &&
 153         test_path_is_file $objdir/info/commit-graph &&
 154         graph_read_expect "11" "large_edges"
 155 '
 156
 157 graph_git_behavior 'full graph, commit 8 vs merge 1' full commits/8 merge/1
 158 graph_git_behavior 'full graph, commit 8 vs merge 2' full commits/8 merge/2
 159
 160 test_expect_success 'write graph with nothing new' '
 161         cd "$TRASH_DIRECTORY/full" &&
 162         git commit-graph write &&
 163         test_path_is_file $objdir/info/commit-graph &&
 164         graph_read_expect "11" "large_edges"
 165 '
 166
 167 graph_git_behavior 'cleared graph, commit 8 vs merge 1' full commits/8 merge/1
 168 graph_git_behavior 'cleared graph, commit 8 vs merge 2' full commits/8 merge/2
 169
 170 test_expect_success 'build graph from latest pack with closure' '
 171         cd "$TRASH_DIRECTORY/full" &&
 172         cat new-idx | git commit-graph write --stdin-packs &&
 173         test_path_is_file $objdir/info/commit-graph &&
 174         graph_read_expect "9" "large_edges"
 175 '
 176
 177 graph_git_behavior 'graph from pack, commit 8 vs merge 1' full commits/8 merge/1
 178 graph_git_behavior 'graph from pack, commit 8 vs merge 2' full commits/8 merge/2
 179
 180 test_expect_success 'build graph from commits with closure' '
 181         cd "$TRASH_DIRECTORY/full" &&
 182         git tag -a -m "merge" tag/merge merge/2 &&
 183         git rev-parse tag/merge >commits-in &&
 184         git rev-parse merge/1 >>commits-in &&
 185         cat commits-in | git commit-graph write --stdin-commits &&
 186         test_path_is_file $objdir/info/commit-graph &&
 187         graph_read_expect "6"
 188 '
 189
 190 graph_git_behavior 'graph from commits, commit 8 vs merge 1' full commits/8 merge/1
 191 graph_git_behavior 'graph from commits, commit 8 vs merge 2' full commits/8 merge/2
 192
 193 test_expect_success 'build graph from commits with append' '
 194         cd "$TRASH_DIRECTORY/full" &&
 195         git rev-parse merge/3 | git commit-graph write --stdin-commits --append &&
 196         test_path_is_file $objdir/info/commit-graph &&
 197         graph_read_expect "10" "large_edges"
 198 '
 199
 200 graph_git_behavior 'append graph, commit 8 vs merge 1' full commits/8 merge/1
 201 graph_git_behavior 'append graph, commit 8 vs merge 2' full commits/8 merge/2
 202
 203 test_expect_success 'setup bare repo' '
 204         cd "$TRASH_DIRECTORY" &&
 205         git clone --bare --no-local full bare &&
 206         cd bare &&
 207         git config core.commitGraph true &&
 208         baredir="./objects"
 209 '
 210
 211 graph_git_behavior 'bare repo, commit 8 vs merge 1' bare commits/8 merge/1
 212 graph_git_behavior 'bare repo, commit 8 vs merge 2' bare commits/8 merge/2
 213
 214 test_expect_success 'write graph in bare repo' '
 215         cd "$TRASH_DIRECTORY/bare" &&
 216         git commit-graph write &&
 217         test_path_is_file $baredir/info/commit-graph &&
 218         graph_read_expect "11" "large_edges"
 219 '
 220
 221 graph_git_behavior 'bare repo with graph, commit 8 vs merge 1' bare commits/8 merge/1
 222 graph_git_behavior 'bare repo with graph, commit 8 vs merge 2' bare commits/8 merge/2
 223
 224 test_done