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' '
graph_git_two_modes() {
git -c core.commitGraph=true $1 >output
git -c core.commitGraph=false $1 >expect
- test_cmp output expect
+ test_cmp expect output
}
graph_git_behavior() {
cd "$TRASH_DIRECTORY/full" &&
git commit-graph write &&
test_path_is_file $objdir/info/commit-graph &&
- graph_read_expect "10" "large_edges"
+ graph_read_expect "10" "extra_edges"
'
graph_git_behavior 'merge 1 vs 2' full merge/1 merge/2
cd "$TRASH_DIRECTORY/full" &&
git commit-graph write &&
test_path_is_file $objdir/info/commit-graph &&
- graph_read_expect "11" "large_edges"
+ graph_read_expect "11" "extra_edges"
'
graph_git_behavior 'full graph, commit 8 vs merge 1' full commits/8 merge/1
cd "$TRASH_DIRECTORY/full" &&
git commit-graph write &&
test_path_is_file $objdir/info/commit-graph &&
- graph_read_expect "11" "large_edges"
+ graph_read_expect "11" "extra_edges"
'
graph_git_behavior 'cleared graph, commit 8 vs merge 1' full commits/8 merge/1
cd "$TRASH_DIRECTORY/full" &&
cat new-idx | git commit-graph write --stdin-packs &&
test_path_is_file $objdir/info/commit-graph &&
- graph_read_expect "9" "large_edges"
+ graph_read_expect "9" "extra_edges"
'
graph_git_behavior 'graph from pack, commit 8 vs merge 1' full commits/8 merge/1
cd "$TRASH_DIRECTORY/full" &&
git rev-parse merge/3 | git commit-graph write --stdin-commits --append &&
test_path_is_file $objdir/info/commit-graph &&
- graph_read_expect "10" "large_edges"
+ graph_read_expect "10" "extra_edges"
'
graph_git_behavior 'append graph, commit 8 vs merge 1' full commits/8 merge/1
cd "$TRASH_DIRECTORY/full" &&
git commit-graph write --reachable &&
test_path_is_file $objdir/info/commit-graph &&
- graph_read_expect "11" "large_edges"
+ graph_read_expect "11" "extra_edges"
'
graph_git_behavior 'append graph, commit 8 vs merge 1' full commits/8 merge/1
cd "$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
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://$TRASH_DIRECTORY/full" shallow &&
+ (
+ cd shallow &&
+ git commit-graph write --reachable &&
+ test_path_is_missing .git/objects/info/commit-graph &&
+ git fetch origin --unshallow &&
+ git commit-graph write --reachable &&
+ test_path_is_file .git/objects/info/commit-graph
+ )
+'
+
# the verify tests below expect the commit-graph to contain
# exactly the commits reachable from the commits/8 branch.
# If the file changes the set of commits in the list, then the
NUM_COMMITS=9
NUM_OCTOPUS_EDGES=2
-HASH_LEN=20
+HASH_LEN="$(test_oid rawsz)"
GRAPH_BYTE_VERSION=4
GRAPH_BYTE_HASH=5
GRAPH_BYTE_CHUNK_COUNT=6
GRAPH_BYTE_OCTOPUS=$(($GRAPH_OCTOPUS_DATA_OFFSET + 4))
GRAPH_BYTE_FOOTER=$(($GRAPH_OCTOPUS_DATA_OFFSET + 4 * $NUM_OCTOPUS_EDGES))
-# usage: corrupt_graph_and_verify <position> <data> <string>
+# usage: corrupt_graph_and_verify <position> <data> <string> [<zero_pos>]
# Manipulates the commit-graph file at the position
-# by inserting the data, then runs 'git commit-graph verify'
+# by inserting the data, optionally zeroing the file
+# starting at <zero_pos>, then runs 'git commit-graph verify'
# and places the output in the file 'err'. Test 'err' for
# the given string.
corrupt_graph_and_verify() {
data="${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
+ grep -v "^+" test_err >err &&
test_i18ngrep "$grepstr" err
}
"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 &&