l10n: zh_CN: Revision for git v2.21.0 l10n
[gitweb.git] / t / t5318-commit-graph.sh
index a380419b65bdf1ecace4c23831e76bc8a7d81962..d4bd1522fe2e6e94578b2d6f709005c7a271b4b0 100755 (executable)
@@ -8,7 +8,13 @@ test_expect_success 'setup full repo' '
        cd "$TRASH_DIRECTORY/full" &&
        git init &&
        git config core.commitGraph true &&
-       objdir=".git/objects"
+       objdir=".git/objects" &&
+       test_oid_init
+'
+
+test_expect_success 'verify graph with no graph file' '
+       cd "$TRASH_DIRECTORY/full" &&
+       git commit-graph verify
 '
 
 test_expect_success 'write graph with no packs' '
@@ -28,9 +34,9 @@ test_expect_success 'create commits and repack' '
 '
 
 graph_git_two_modes() {
-       git -c core.graph=true $1 >output
-       git -c core.graph=false $1 >expect
-       test_cmp output expect
+       git -c core.commitGraph=true $1 >output
+       git -c core.commitGraph=false $1 >expect
+       test_cmp expect output
 }
 
 graph_git_behavior() {
@@ -116,7 +122,7 @@ test_expect_success 'write graph with merges' '
        cd "$TRASH_DIRECTORY/full" &&
        git commit-graph write &&
        test_path_is_file $objdir/info/commit-graph &&
-       graph_read_expect "10" "large_edges"
+       graph_read_expect "10" "extra_edges"
 '
 
 graph_git_behavior 'merge 1 vs 2' full merge/1 merge/2
@@ -129,7 +135,7 @@ test_expect_success 'Add one more commit' '
        git branch commits/8 &&
        ls $objdir/pack | grep idx >existing-idx &&
        git repack &&
-       ls $objdir/pack| grep idx | grep -v --file=existing-idx >new-idx
+       ls $objdir/pack| grep idx | grep -v -existing-idx >new-idx
 '
 
 # Current graph structure:
@@ -151,7 +157,7 @@ test_expect_success 'write graph with new commit' '
        cd "$TRASH_DIRECTORY/full" &&
        git commit-graph write &&
        test_path_is_file $objdir/info/commit-graph &&
-       graph_read_expect "11" "large_edges"
+       graph_read_expect "11" "extra_edges"
 '
 
 graph_git_behavior 'full graph, commit 8 vs merge 1' full commits/8 merge/1
@@ -161,7 +167,7 @@ test_expect_success 'write graph with nothing new' '
        cd "$TRASH_DIRECTORY/full" &&
        git commit-graph write &&
        test_path_is_file $objdir/info/commit-graph &&
-       graph_read_expect "11" "large_edges"
+       graph_read_expect "11" "extra_edges"
 '
 
 graph_git_behavior 'cleared graph, commit 8 vs merge 1' full commits/8 merge/1
@@ -171,7 +177,7 @@ test_expect_success 'build graph from latest pack with closure' '
        cd "$TRASH_DIRECTORY/full" &&
        cat new-idx | git commit-graph write --stdin-packs &&
        test_path_is_file $objdir/info/commit-graph &&
-       graph_read_expect "9" "large_edges"
+       graph_read_expect "9" "extra_edges"
 '
 
 graph_git_behavior 'graph from pack, commit 8 vs merge 1' full commits/8 merge/1
@@ -194,7 +200,17 @@ test_expect_success 'build graph from commits with append' '
        cd "$TRASH_DIRECTORY/full" &&
        git rev-parse merge/3 | git commit-graph write --stdin-commits --append &&
        test_path_is_file $objdir/info/commit-graph &&
-       graph_read_expect "10" "large_edges"
+       graph_read_expect "10" "extra_edges"
+'
+
+graph_git_behavior 'append graph, commit 8 vs merge 1' full commits/8 merge/1
+graph_git_behavior 'append graph, commit 8 vs merge 2' full commits/8 merge/2
+
+test_expect_success 'build graph using --reachable' '
+       cd "$TRASH_DIRECTORY/full" &&
+       git commit-graph write --reachable &&
+       test_path_is_file $objdir/info/commit-graph &&
+       graph_read_expect "11" "extra_edges"
 '
 
 graph_git_behavior 'append graph, commit 8 vs merge 1' full commits/8 merge/1
@@ -215,10 +231,312 @@ test_expect_success 'write graph in bare repo' '
        cd "$TRASH_DIRECTORY/bare" &&
        git commit-graph write &&
        test_path_is_file $baredir/info/commit-graph &&
-       graph_read_expect "11" "large_edges"
+       graph_read_expect "11" "extra_edges"
 '
 
 graph_git_behavior 'bare repo with graph, commit 8 vs merge 1' bare commits/8 merge/1
 graph_git_behavior 'bare repo with graph, commit 8 vs merge 2' bare commits/8 merge/2
 
+test_expect_success 'perform fast-forward merge in full repo' '
+       cd "$TRASH_DIRECTORY/full" &&
+       git checkout -b merge-5-to-8 commits/5 &&
+       git merge commits/8 &&
+       git show-ref -s merge-5-to-8 >output &&
+       git show-ref -s commits/8 >expect &&
+       test_cmp expect output
+'
+
+test_expect_success 'check that gc computes commit-graph' '
+       cd "$TRASH_DIRECTORY/full" &&
+       git commit --allow-empty -m "blank" &&
+       git commit-graph write --reachable &&
+       cp $objdir/info/commit-graph commit-graph-before-gc &&
+       git reset --hard HEAD~1 &&
+       git config gc.writeCommitGraph true &&
+       git gc &&
+       cp $objdir/info/commit-graph commit-graph-after-gc &&
+       ! test_cmp_bin commit-graph-before-gc commit-graph-after-gc &&
+       git commit-graph write --reachable &&
+       test_cmp_bin commit-graph-after-gc $objdir/info/commit-graph
+'
+
+test_expect_success 'replace-objects invalidates commit-graph' '
+       cd "$TRASH_DIRECTORY" &&
+       test_when_finished rm -rf replace &&
+       git clone full replace &&
+       (
+               cd replace &&
+               git commit-graph write --reachable &&
+               test_path_is_file .git/objects/info/commit-graph &&
+               git replace HEAD~1 HEAD~2 &&
+               git -c core.commitGraph=false log >expect &&
+               git -c core.commitGraph=true log >actual &&
+               test_cmp expect actual &&
+               git commit-graph write --reachable &&
+               git -c core.commitGraph=false --no-replace-objects log >expect &&
+               git -c core.commitGraph=true --no-replace-objects log >actual &&
+               test_cmp expect actual &&
+               rm -rf .git/objects/info/commit-graph &&
+               git commit-graph write --reachable &&
+               test_path_is_file .git/objects/info/commit-graph
+       )
+'
+
+test_expect_success 'commit grafts invalidate commit-graph' '
+       cd "$TRASH_DIRECTORY" &&
+       test_when_finished rm -rf graft &&
+       git clone full graft &&
+       (
+               cd graft &&
+               git commit-graph write --reachable &&
+               test_path_is_file .git/objects/info/commit-graph &&
+               H1=$(git rev-parse --verify HEAD~1) &&
+               H3=$(git rev-parse --verify HEAD~3) &&
+               echo "$H1 $H3" >.git/info/grafts &&
+               git -c core.commitGraph=false log >expect &&
+               git -c core.commitGraph=true log >actual &&
+               test_cmp expect actual &&
+               git commit-graph write --reachable &&
+               git -c core.commitGraph=false --no-replace-objects log >expect &&
+               git -c core.commitGraph=true --no-replace-objects log >actual &&
+               test_cmp expect actual &&
+               rm -rf .git/objects/info/commit-graph &&
+               git commit-graph write --reachable &&
+               test_path_is_missing .git/objects/info/commit-graph
+       )
+'
+
+test_expect_success 'replace-objects invalidates commit-graph' '
+       cd "$TRASH_DIRECTORY" &&
+       test_when_finished rm -rf shallow &&
+       git clone --depth 2 "file://$TRASH_DIRECTORY/full" shallow &&
+       (
+               cd shallow &&
+               git commit-graph write --reachable &&
+               test_path_is_missing .git/objects/info/commit-graph &&
+               git fetch origin --unshallow &&
+               git commit-graph write --reachable &&
+               test_path_is_file .git/objects/info/commit-graph
+       )
+'
+
+# the verify tests below expect the commit-graph to contain
+# exactly the commits reachable from the commits/8 branch.
+# If the file changes the set of commits in the list, then the
+# offsets into the binary file will result in different edits
+# and the tests will likely break.
+
+test_expect_success 'git commit-graph verify' '
+       cd "$TRASH_DIRECTORY/full" &&
+       git rev-parse commits/8 | git commit-graph write --stdin-commits &&
+       git commit-graph verify >output
+'
+
+NUM_COMMITS=9
+NUM_OCTOPUS_EDGES=2
+HASH_LEN="$(test_oid rawsz)"
+GRAPH_BYTE_VERSION=4
+GRAPH_BYTE_HASH=5
+GRAPH_BYTE_CHUNK_COUNT=6
+GRAPH_CHUNK_LOOKUP_OFFSET=8
+GRAPH_CHUNK_LOOKUP_WIDTH=12
+GRAPH_CHUNK_LOOKUP_ROWS=5
+GRAPH_BYTE_OID_FANOUT_ID=$GRAPH_CHUNK_LOOKUP_OFFSET
+GRAPH_BYTE_OID_LOOKUP_ID=$(($GRAPH_CHUNK_LOOKUP_OFFSET + \
+                           1 * $GRAPH_CHUNK_LOOKUP_WIDTH))
+GRAPH_BYTE_COMMIT_DATA_ID=$(($GRAPH_CHUNK_LOOKUP_OFFSET + \
+                            2 * $GRAPH_CHUNK_LOOKUP_WIDTH))
+GRAPH_FANOUT_OFFSET=$(($GRAPH_CHUNK_LOOKUP_OFFSET + \
+                      $GRAPH_CHUNK_LOOKUP_WIDTH * $GRAPH_CHUNK_LOOKUP_ROWS))
+GRAPH_BYTE_FANOUT1=$(($GRAPH_FANOUT_OFFSET + 4 * 4))
+GRAPH_BYTE_FANOUT2=$(($GRAPH_FANOUT_OFFSET + 4 * 255))
+GRAPH_OID_LOOKUP_OFFSET=$(($GRAPH_FANOUT_OFFSET + 4 * 256))
+GRAPH_BYTE_OID_LOOKUP_ORDER=$(($GRAPH_OID_LOOKUP_OFFSET + $HASH_LEN * 8))
+GRAPH_BYTE_OID_LOOKUP_MISSING=$(($GRAPH_OID_LOOKUP_OFFSET + $HASH_LEN * 4 + 10))
+GRAPH_COMMIT_DATA_OFFSET=$(($GRAPH_OID_LOOKUP_OFFSET + $HASH_LEN * $NUM_COMMITS))
+GRAPH_BYTE_COMMIT_TREE=$GRAPH_COMMIT_DATA_OFFSET
+GRAPH_BYTE_COMMIT_PARENT=$(($GRAPH_COMMIT_DATA_OFFSET + $HASH_LEN))
+GRAPH_BYTE_COMMIT_EXTRA_PARENT=$(($GRAPH_COMMIT_DATA_OFFSET + $HASH_LEN + 4))
+GRAPH_BYTE_COMMIT_WRONG_PARENT=$(($GRAPH_COMMIT_DATA_OFFSET + $HASH_LEN + 3))
+GRAPH_BYTE_COMMIT_GENERATION=$(($GRAPH_COMMIT_DATA_OFFSET + $HASH_LEN + 11))
+GRAPH_BYTE_COMMIT_DATE=$(($GRAPH_COMMIT_DATA_OFFSET + $HASH_LEN + 12))
+GRAPH_COMMIT_DATA_WIDTH=$(($HASH_LEN + 16))
+GRAPH_OCTOPUS_DATA_OFFSET=$(($GRAPH_COMMIT_DATA_OFFSET + \
+                            $GRAPH_COMMIT_DATA_WIDTH * $NUM_COMMITS))
+GRAPH_BYTE_OCTOPUS=$(($GRAPH_OCTOPUS_DATA_OFFSET + 4))
+GRAPH_BYTE_FOOTER=$(($GRAPH_OCTOPUS_DATA_OFFSET + 4 * $NUM_OCTOPUS_EDGES))
+
+# usage: corrupt_graph_and_verify <position> <data> <string> [<zero_pos>]
+# Manipulates the commit-graph file at the position
+# by inserting the data, optionally zeroing the file
+# starting at <zero_pos>, then runs 'git commit-graph verify'
+# and places the output in the file 'err'. Test 'err' for
+# the given string.
+corrupt_graph_and_verify() {
+       pos=$1
+       data="${2:-\0}"
+       grepstr=$3
+       cd "$TRASH_DIRECTORY/full" &&
+       orig_size=$(wc -c < $objdir/info/commit-graph) &&
+       zero_pos=${4:-${orig_size}} &&
+       test_when_finished mv commit-graph-backup $objdir/info/commit-graph &&
+       cp $objdir/info/commit-graph commit-graph-backup &&
+       printf "$data" | dd of="$objdir/info/commit-graph" bs=1 seek="$pos" conv=notrunc &&
+       dd of="$objdir/info/commit-graph" bs=1 seek="$zero_pos" count=0 &&
+       generate_zero_bytes $(($orig_size - $zero_pos)) >>"$objdir/info/commit-graph" &&
+       test_must_fail git commit-graph verify 2>test_err &&
+       grep -v "^+" test_err >err &&
+       test_i18ngrep "$grepstr" err
+}
+
+test_expect_success 'detect bad signature' '
+       corrupt_graph_and_verify 0 "\0" \
+               "graph signature"
+'
+
+test_expect_success 'detect bad version' '
+       corrupt_graph_and_verify $GRAPH_BYTE_VERSION "\02" \
+               "graph version"
+'
+
+test_expect_success 'detect bad hash version' '
+       corrupt_graph_and_verify $GRAPH_BYTE_HASH "\02" \
+               "hash version"
+'
+
+test_expect_success 'detect low chunk count' '
+       corrupt_graph_and_verify $GRAPH_BYTE_CHUNK_COUNT "\02" \
+               "missing the .* chunk"
+'
+
+test_expect_success 'detect missing OID fanout chunk' '
+       corrupt_graph_and_verify $GRAPH_BYTE_OID_FANOUT_ID "\0" \
+               "missing the OID Fanout chunk"
+'
+
+test_expect_success 'detect missing OID lookup chunk' '
+       corrupt_graph_and_verify $GRAPH_BYTE_OID_LOOKUP_ID "\0" \
+               "missing the OID Lookup chunk"
+'
+
+test_expect_success 'detect missing commit data chunk' '
+       corrupt_graph_and_verify $GRAPH_BYTE_COMMIT_DATA_ID "\0" \
+               "missing the Commit Data chunk"
+'
+
+test_expect_success 'detect incorrect fanout' '
+       corrupt_graph_and_verify $GRAPH_BYTE_FANOUT1 "\01" \
+               "fanout value"
+'
+
+test_expect_success 'detect incorrect fanout final value' '
+       corrupt_graph_and_verify $GRAPH_BYTE_FANOUT2 "\01" \
+               "fanout value"
+'
+
+test_expect_success 'detect incorrect OID order' '
+       corrupt_graph_and_verify $GRAPH_BYTE_OID_LOOKUP_ORDER "\01" \
+               "incorrect OID order"
+'
+
+test_expect_success 'detect OID not in object database' '
+       corrupt_graph_and_verify $GRAPH_BYTE_OID_LOOKUP_MISSING "\01" \
+               "from object database"
+'
+
+test_expect_success 'detect incorrect tree OID' '
+       corrupt_graph_and_verify $GRAPH_BYTE_COMMIT_TREE "\01" \
+               "root tree OID for commit"
+'
+
+test_expect_success 'detect incorrect parent int-id' '
+       corrupt_graph_and_verify $GRAPH_BYTE_COMMIT_PARENT "\01" \
+               "invalid parent"
+'
+
+test_expect_success 'detect extra parent int-id' '
+       corrupt_graph_and_verify $GRAPH_BYTE_COMMIT_EXTRA_PARENT "\00" \
+               "is too long"
+'
+
+test_expect_success 'detect wrong parent' '
+       corrupt_graph_and_verify $GRAPH_BYTE_COMMIT_WRONG_PARENT "\01" \
+               "commit-graph parent for"
+'
+
+test_expect_success 'detect incorrect generation number' '
+       corrupt_graph_and_verify $GRAPH_BYTE_COMMIT_GENERATION "\070" \
+               "generation for commit"
+'
+
+test_expect_success 'detect incorrect generation number' '
+       corrupt_graph_and_verify $GRAPH_BYTE_COMMIT_GENERATION "\01" \
+               "non-zero generation number"
+'
+
+test_expect_success 'detect incorrect commit date' '
+       corrupt_graph_and_verify $GRAPH_BYTE_COMMIT_DATE "\01" \
+               "commit date"
+'
+
+test_expect_success 'detect incorrect parent for octopus merge' '
+       corrupt_graph_and_verify $GRAPH_BYTE_OCTOPUS "\01" \
+               "invalid parent"
+'
+
+test_expect_success 'detect invalid checksum hash' '
+       corrupt_graph_and_verify $GRAPH_BYTE_FOOTER "\00" \
+               "incorrect checksum"
+'
+
+test_expect_success 'detect incorrect chunk count' '
+       corrupt_graph_and_verify $GRAPH_BYTE_CHUNK_COUNT "\377" \
+               "chunk lookup table entry missing" $GRAPH_CHUNK_LOOKUP_OFFSET
+'
+
+test_expect_success 'git fsck (checks commit-graph)' '
+       cd "$TRASH_DIRECTORY/full" &&
+       git fsck &&
+       corrupt_graph_and_verify $GRAPH_BYTE_FOOTER "\00" \
+               "incorrect checksum" &&
+       test_must_fail git fsck
+'
+
+test_expect_success 'setup non-the_repository tests' '
+       rm -rf repo &&
+       git init repo &&
+       test_commit -C repo one &&
+       test_commit -C repo two &&
+       git -C repo config core.commitGraph true &&
+       git -C repo rev-parse two | \
+               git -C repo commit-graph write --stdin-commits
+'
+
+test_expect_success 'parse_commit_in_graph works for non-the_repository' '
+       test-tool repository parse_commit_in_graph \
+               repo/.git repo "$(git -C repo rev-parse two)" >actual &&
+       {
+               git -C repo log --pretty=format:"%ct " -1 &&
+               git -C repo rev-parse one
+       } >expect &&
+       test_cmp expect actual &&
+
+       test-tool repository parse_commit_in_graph \
+               repo/.git repo "$(git -C repo rev-parse one)" >actual &&
+       git -C repo log --pretty="%ct" -1 one >expect &&
+       test_cmp expect actual
+'
+
+test_expect_success 'get_commit_tree_in_graph works for non-the_repository' '
+       test-tool repository get_commit_tree_in_graph \
+               repo/.git repo "$(git -C repo rev-parse two)" >actual &&
+       git -C repo rev-parse two^{tree} >expect &&
+       test_cmp expect actual &&
+
+       test-tool repository get_commit_tree_in_graph \
+               repo/.git repo "$(git -C repo rev-parse one)" >actual &&
+       git -C repo rev-parse one^{tree} >expect &&
+       test_cmp expect actual
+'
+
 test_done