| #!/bin/sh |
| |
| test_description='commit graph' |
| . ./test-lib.sh |
| |
| GIT_TEST_COMMIT_GRAPH_CHANGED_PATHS=0 |
| |
| test_expect_success 'usage' ' |
| test_expect_code 129 git commit-graph write blah 2>err && |
| test_expect_code 129 git commit-graph write verify |
| ' |
| |
| test_expect_success 'usage shown without sub-command' ' |
| test_expect_code 129 git commit-graph 2>err && |
| grep usage: err |
| ' |
| |
| test_expect_success 'usage shown with an error on unknown sub-command' ' |
| cat >expect <<-\EOF && |
| error: unknown subcommand: `unknown'\'' |
| EOF |
| test_expect_code 129 git commit-graph unknown 2>stderr && |
| grep error stderr >actual && |
| test_cmp expect actual |
| ' |
| |
| test_expect_success 'setup full repo' ' |
| mkdir full && |
| cd "$TRASH_DIRECTORY/full" && |
| git init && |
| git config core.commitGraph true && |
| objdir=".git/objects" |
| ' |
| |
| test_expect_success POSIXPERM 'tweak umask for modebit tests' ' |
| umask 022 |
| ' |
| |
| test_expect_success 'verify graph with no graph file' ' |
| cd "$TRASH_DIRECTORY/full" && |
| git commit-graph verify |
| ' |
| |
| test_expect_success 'write graph with no packs' ' |
| cd "$TRASH_DIRECTORY/full" && |
| git commit-graph write --object-dir $objdir && |
| test_path_is_missing $objdir/info/commit-graph |
| ' |
| |
| test_expect_success 'exit with correct error on bad input to --stdin-packs' ' |
| cd "$TRASH_DIRECTORY/full" && |
| echo doesnotexist >in && |
| test_expect_code 1 git commit-graph write --stdin-packs <in 2>stderr && |
| test_i18ngrep "error adding pack" stderr |
| ' |
| |
| test_expect_success 'create commits and repack' ' |
| cd "$TRASH_DIRECTORY/full" && |
| for i in $(test_seq 3) |
| do |
| test_commit $i && |
| git branch commits/$i || return 1 |
| done && |
| git repack |
| ' |
| |
| . "$TEST_DIRECTORY"/lib-commit-graph.sh |
| |
| graph_git_behavior 'no graph' full commits/3 commits/1 |
| |
| test_expect_success 'exit with correct error on bad input to --stdin-commits' ' |
| cd "$TRASH_DIRECTORY/full" && |
| # invalid, non-hex OID |
| echo HEAD >in && |
| test_expect_code 1 git commit-graph write --stdin-commits <in 2>stderr && |
| test_i18ngrep "unexpected non-hex object ID: HEAD" stderr && |
| # non-existent OID |
| echo $ZERO_OID >in && |
| test_expect_code 1 git commit-graph write --stdin-commits <in 2>stderr && |
| test_i18ngrep "invalid object" stderr && |
| # valid commit and tree OID |
| git rev-parse HEAD HEAD^{tree} >in && |
| git commit-graph write --stdin-commits <in && |
| graph_read_expect 3 generation_data |
| ' |
| |
| test_expect_success 'write graph' ' |
| cd "$TRASH_DIRECTORY/full" && |
| git commit-graph write && |
| test_path_is_file $objdir/info/commit-graph && |
| graph_read_expect "3" generation_data |
| ' |
| |
| test_expect_success POSIXPERM 'write graph has correct permissions' ' |
| test_path_is_file $objdir/info/commit-graph && |
| echo "-r--r--r--" >expect && |
| test_modebits $objdir/info/commit-graph >actual && |
| test_cmp expect actual |
| ' |
| |
| graph_git_behavior 'graph exists' full commits/3 commits/1 |
| |
| test_expect_success 'Add more commits' ' |
| cd "$TRASH_DIRECTORY/full" && |
| git reset --hard commits/1 && |
| for i in $(test_seq 4 5) |
| do |
| test_commit $i && |
| git branch commits/$i || return 1 |
| done && |
| git reset --hard commits/2 && |
| for i in $(test_seq 6 7) |
| do |
| test_commit $i && |
| git branch commits/$i || return 1 |
| done && |
| git reset --hard commits/2 && |
| git merge commits/4 && |
| git branch merge/1 && |
| git reset --hard commits/4 && |
| git merge commits/6 && |
| git branch merge/2 && |
| git reset --hard commits/3 && |
| git merge commits/5 commits/7 && |
| git branch merge/3 && |
| git repack |
| ' |
| |
| test_expect_success 'commit-graph write progress off for redirected stderr' ' |
| cd "$TRASH_DIRECTORY/full" && |
| git commit-graph write 2>err && |
| test_must_be_empty err |
| ' |
| |
| test_expect_success 'commit-graph write force progress on for stderr' ' |
| cd "$TRASH_DIRECTORY/full" && |
| GIT_PROGRESS_DELAY=0 git commit-graph write --progress 2>err && |
| test_file_not_empty err |
| ' |
| |
| test_expect_success 'commit-graph write with the --no-progress option' ' |
| cd "$TRASH_DIRECTORY/full" && |
| git commit-graph write --no-progress 2>err && |
| test_must_be_empty err |
| ' |
| |
| test_expect_success 'commit-graph write --stdin-commits progress off for redirected stderr' ' |
| cd "$TRASH_DIRECTORY/full" && |
| git rev-parse commits/5 >in && |
| git commit-graph write --stdin-commits <in 2>err && |
| test_must_be_empty err |
| ' |
| |
| test_expect_success 'commit-graph write --stdin-commits force progress on for stderr' ' |
| cd "$TRASH_DIRECTORY/full" && |
| git rev-parse commits/5 >in && |
| GIT_PROGRESS_DELAY=0 git commit-graph write --stdin-commits --progress <in 2>err && |
| test_i18ngrep "Collecting commits from input" err |
| ' |
| |
| test_expect_success 'commit-graph write --stdin-commits with the --no-progress option' ' |
| cd "$TRASH_DIRECTORY/full" && |
| git rev-parse commits/5 >in && |
| git commit-graph write --stdin-commits --no-progress <in 2>err && |
| test_must_be_empty err |
| ' |
| |
| test_expect_success 'commit-graph verify progress off for redirected stderr' ' |
| cd "$TRASH_DIRECTORY/full" && |
| git commit-graph verify 2>err && |
| test_must_be_empty err |
| ' |
| |
| test_expect_success 'commit-graph verify force progress on for stderr' ' |
| cd "$TRASH_DIRECTORY/full" && |
| GIT_PROGRESS_DELAY=0 git commit-graph verify --progress 2>err && |
| test_file_not_empty err |
| ' |
| |
| test_expect_success 'commit-graph verify with the --no-progress option' ' |
| cd "$TRASH_DIRECTORY/full" && |
| git commit-graph verify --no-progress 2>err && |
| test_must_be_empty err |
| ' |
| |
| # Current graph structure: |
| # |
| # __M3___ |
| # / | \ |
| # 3 M1 5 M2 7 |
| # |/ \|/ \| |
| # 2 4 6 |
| # |___/____/ |
| # 1 |
| |
| test_expect_success 'write graph with merges' ' |
| cd "$TRASH_DIRECTORY/full" && |
| git commit-graph write && |
| test_path_is_file $objdir/info/commit-graph && |
| graph_read_expect "10" "generation_data extra_edges" |
| ' |
| |
| graph_git_behavior 'merge 1 vs 2' full merge/1 merge/2 |
| graph_git_behavior 'merge 1 vs 3' full merge/1 merge/3 |
| graph_git_behavior 'merge 2 vs 3' full merge/2 merge/3 |
| |
| test_expect_success 'Add one more commit' ' |
| cd "$TRASH_DIRECTORY/full" && |
| test_commit 8 && |
| git branch commits/8 && |
| ls $objdir/pack | grep idx >existing-idx && |
| git repack && |
| ls $objdir/pack| grep idx | grep -v -f existing-idx >new-idx |
| ' |
| |
| # Current graph structure: |
| # |
| # 8 |
| # | |
| # __M3___ |
| # / | \ |
| # 3 M1 5 M2 7 |
| # |/ \|/ \| |
| # 2 4 6 |
| # |___/____/ |
| # 1 |
| |
| graph_git_behavior 'mixed mode, commit 8 vs merge 1' full commits/8 merge/1 |
| graph_git_behavior 'mixed mode, commit 8 vs merge 2' full commits/8 merge/2 |
| |
| test_expect_success 'write graph with new commit' ' |
| cd "$TRASH_DIRECTORY/full" && |
| git commit-graph write && |
| test_path_is_file $objdir/info/commit-graph && |
| graph_read_expect "11" "generation_data extra_edges" |
| ' |
| |
| graph_git_behavior 'full graph, commit 8 vs merge 1' full commits/8 merge/1 |
| graph_git_behavior 'full graph, commit 8 vs merge 2' full commits/8 merge/2 |
| |
| test_expect_success 'write graph with nothing new' ' |
| cd "$TRASH_DIRECTORY/full" && |
| git commit-graph write && |
| test_path_is_file $objdir/info/commit-graph && |
| graph_read_expect "11" "generation_data extra_edges" |
| ' |
| |
| graph_git_behavior 'cleared graph, commit 8 vs merge 1' full commits/8 merge/1 |
| graph_git_behavior 'cleared graph, commit 8 vs merge 2' full commits/8 merge/2 |
| |
| test_expect_success 'build graph from latest pack with closure' ' |
| cd "$TRASH_DIRECTORY/full" && |
| cat new-idx | git commit-graph write --stdin-packs && |
| test_path_is_file $objdir/info/commit-graph && |
| graph_read_expect "9" "generation_data extra_edges" |
| ' |
| |
| graph_git_behavior 'graph from pack, commit 8 vs merge 1' full commits/8 merge/1 |
| graph_git_behavior 'graph from pack, commit 8 vs merge 2' full commits/8 merge/2 |
| |
| test_expect_success 'build graph from commits with closure' ' |
| cd "$TRASH_DIRECTORY/full" && |
| git tag -a -m "merge" tag/merge merge/2 && |
| git rev-parse tag/merge >commits-in && |
| git rev-parse merge/1 >>commits-in && |
| cat commits-in | git commit-graph write --stdin-commits && |
| test_path_is_file $objdir/info/commit-graph && |
| graph_read_expect "6" "generation_data" |
| ' |
| |
| graph_git_behavior 'graph from commits, commit 8 vs merge 1' full commits/8 merge/1 |
| graph_git_behavior 'graph from commits, commit 8 vs merge 2' full commits/8 merge/2 |
| |
| test_expect_success 'build graph from commits with append' ' |
| cd "$TRASH_DIRECTORY/full" && |
| git rev-parse merge/3 | git commit-graph write --stdin-commits --append && |
| test_path_is_file $objdir/info/commit-graph && |
| graph_read_expect "10" "generation_data extra_edges" |
| ' |
| |
| graph_git_behavior 'append graph, commit 8 vs merge 1' full commits/8 merge/1 |
| graph_git_behavior 'append graph, commit 8 vs merge 2' full commits/8 merge/2 |
| |
| test_expect_success 'build graph using --reachable' ' |
| cd "$TRASH_DIRECTORY/full" && |
| git commit-graph write --reachable && |
| test_path_is_file $objdir/info/commit-graph && |
| graph_read_expect "11" "generation_data extra_edges" |
| ' |
| |
| graph_git_behavior 'append graph, commit 8 vs merge 1' full commits/8 merge/1 |
| graph_git_behavior 'append graph, commit 8 vs merge 2' full commits/8 merge/2 |
| |
| test_expect_success 'setup bare repo' ' |
| cd "$TRASH_DIRECTORY" && |
| git clone --bare --no-local full bare && |
| cd bare && |
| git config core.commitGraph true && |
| baredir="./objects" |
| ' |
| |
| graph_git_behavior 'bare repo, commit 8 vs merge 1' bare commits/8 merge/1 |
| graph_git_behavior 'bare repo, commit 8 vs merge 2' bare commits/8 merge/2 |
| |
| test_expect_success 'write graph in bare repo' ' |
| cd "$TRASH_DIRECTORY/bare" && |
| git commit-graph write && |
| test_path_is_file $baredir/info/commit-graph && |
| graph_read_expect "11" "generation_data extra_edges" |
| ' |
| |
| graph_git_behavior 'bare repo with graph, commit 8 vs merge 1' bare commits/8 merge/1 |
| graph_git_behavior 'bare repo with graph, commit 8 vs merge 2' bare commits/8 merge/2 |
| |
| test_expect_success 'perform fast-forward merge in full repo' ' |
| cd "$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 && |
| graph_git_two_modes "commit-graph verify" && |
| 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 "$TRASH_DIRECTORY" && |
| test_when_finished rm -rf graft && |
| git clone --template= full graft && |
| ( |
| cd graft && |
| git commit-graph write --reachable && |
| test_path_is_file .git/objects/info/commit-graph && |
| H1=$(git rev-parse --verify HEAD~1) && |
| H3=$(git rev-parse --verify HEAD~3) && |
| mkdir .git/info && |
| echo "$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://$TRASH_DIRECTORY/full" shallow && |
| ( |
| cd shallow && |
| git commit-graph write --reachable && |
| test_path_is_missing .git/objects/info/commit-graph && |
| git fetch origin --unshallow && |
| git commit-graph write --reachable && |
| test_path_is_file .git/objects/info/commit-graph |
| ) |
| ' |
| |
| test_expect_success 'warn on improper hash version' ' |
| git init --object-format=sha1 sha1 && |
| ( |
| cd sha1 && |
| test_commit 1 && |
| git commit-graph write --reachable && |
| mv .git/objects/info/commit-graph ../cg-sha1 |
| ) && |
| git init --object-format=sha256 sha256 && |
| ( |
| cd sha256 && |
| test_commit 1 && |
| git commit-graph write --reachable && |
| mv .git/objects/info/commit-graph ../cg-sha256 |
| ) && |
| ( |
| cd sha1 && |
| mv ../cg-sha256 .git/objects/info/commit-graph && |
| git log -1 2>err && |
| test_i18ngrep "commit-graph hash version 2 does not match version 1" err |
| ) && |
| ( |
| cd sha256 && |
| mv ../cg-sha1 .git/objects/info/commit-graph && |
| git log -1 2>err && |
| test_i18ngrep "commit-graph hash version 1 does not match version 2" err |
| ) |
| ' |
| |
| test_expect_success TIME_IS_64BIT,TIME_T_IS_64BIT 'lower layers have overflow chunk' ' |
| cd "$TRASH_DIRECTORY/full" && |
| UNIX_EPOCH_ZERO="@0 +0000" && |
| FUTURE_DATE="@4147483646 +0000" && |
| rm -f .git/objects/info/commit-graph && |
| test_commit --date "$FUTURE_DATE" future-1 && |
| test_commit --date "$UNIX_EPOCH_ZERO" old-1 && |
| git commit-graph write --reachable && |
| test_commit --date "$FUTURE_DATE" future-2 && |
| test_commit --date "$UNIX_EPOCH_ZERO" old-2 && |
| git commit-graph write --reachable --split=no-merge && |
| test_commit extra && |
| git commit-graph write --reachable --split=no-merge && |
| git commit-graph write --reachable && |
| graph_read_expect 16 "generation_data generation_data_overflow extra_edges" && |
| mv .git/objects/info/commit-graph commit-graph-upgraded && |
| git commit-graph write --reachable && |
| graph_read_expect 16 "generation_data generation_data_overflow extra_edges" && |
| test_cmp .git/objects/info/commit-graph commit-graph-upgraded |
| ' |
| |
| # 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 "$TRASH_DIRECTORY/full" && |
| git rev-parse commits/8 | git -c commitGraph.generationVersion=1 commit-graph write --stdin-commits && |
| git commit-graph verify >output && |
| graph_read_expect 9 extra_edges 1 |
| ' |
| |
| NUM_COMMITS=9 |
| NUM_OCTOPUS_EDGES=2 |
| HASH_LEN="$(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 * $NUM_OCTOPUS_EDGES)) |
| |
| corrupt_graph_setup() { |
| cd "$TRASH_DIRECTORY/full" && |
| test_when_finished mv commit-graph-backup $objdir/info/commit-graph && |
| cp $objdir/info/commit-graph commit-graph-backup && |
| chmod u+w $objdir/info/commit-graph |
| } |
| |
| corrupt_graph_verify() { |
| grepstr=$1 |
| test_must_fail git commit-graph verify 2>test_err && |
| grep -v "^+" test_err >err && |
| test_i18ngrep "$grepstr" err && |
| if test "$2" != "no-copy" |
| then |
| cp $objdir/info/commit-graph commit-graph-pre-write-test |
| fi && |
| git status --short && |
| GIT_TEST_COMMIT_GRAPH_DIE_ON_PARSE=true git commit-graph write && |
| chmod u+w $objdir/info/commit-graph && |
| git commit-graph verify |
| } |
| |
| # 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=$3 |
| corrupt_graph_setup && |
| orig_size=$(wc -c < $objdir/info/commit-graph) && |
| zero_pos=${4:-${orig_size}} && |
| printf "$data" | dd of="$objdir/info/commit-graph" bs=1 seek="$pos" conv=notrunc && |
| dd of="$objdir/info/commit-graph" bs=1 seek="$zero_pos" if=/dev/null && |
| test-tool genzeros $(($orig_size - $zero_pos)) >>"$objdir/info/commit-graph" && |
| corrupt_graph_verify "$grepstr" |
| |
| } |
| |
| test_expect_success POSIXPERM,SANITY 'detect permission problem' ' |
| corrupt_graph_setup && |
| chmod 000 $objdir/info/commit-graph && |
| corrupt_graph_verify "Could not open" "no-copy" |
| ' |
| |
| test_expect_success 'detect too small' ' |
| corrupt_graph_setup && |
| echo "a small graph" >$objdir/info/commit-graph && |
| corrupt_graph_verify "too small" |
| ' |
| |
| 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 "\03" \ |
| "hash version" |
| ' |
| |
| test_expect_success 'detect low chunk count' ' |
| corrupt_graph_and_verify $GRAPH_BYTE_CHUNK_COUNT "\01" \ |
| "final chunk has non-zero id" |
| ' |
| |
| 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" \ |
| "commit-graph file is too small to hold [0-9]* chunks" \ |
| $GRAPH_CHUNK_LOOKUP_OFFSET |
| ' |
| |
| test_expect_success 'git fsck (checks commit-graph when config set to true)' ' |
| cd "$TRASH_DIRECTORY/full" && |
| git fsck && |
| corrupt_graph_and_verify $GRAPH_BYTE_FOOTER "\00" \ |
| "incorrect checksum" && |
| cp commit-graph-pre-write-test $objdir/info/commit-graph && |
| test_must_fail git -c core.commitGraph=true fsck |
| ' |
| |
| test_expect_success 'git fsck (ignores commit-graph when config set to false)' ' |
| cd "$TRASH_DIRECTORY/full" && |
| git fsck && |
| corrupt_graph_and_verify $GRAPH_BYTE_FOOTER "\00" \ |
| "incorrect checksum" && |
| cp commit-graph-pre-write-test $objdir/info/commit-graph && |
| git -c core.commitGraph=false fsck |
| ' |
| |
| test_expect_success 'git fsck (checks commit-graph when config unset)' ' |
| cd "$TRASH_DIRECTORY/full" && |
| test_when_finished "git config core.commitGraph true" && |
| |
| git fsck && |
| corrupt_graph_and_verify $GRAPH_BYTE_FOOTER "\00" \ |
| "incorrect checksum" && |
| test_unconfig core.commitGraph && |
| cp commit-graph-pre-write-test $objdir/info/commit-graph && |
| test_must_fail git fsck |
| ' |
| |
| test_expect_success 'setup non-the_repository tests' ' |
| rm -rf repo && |
| git init repo && |
| test_commit -C repo one && |
| test_commit -C repo two && |
| git -C repo config core.commitGraph true && |
| git -C repo rev-parse two | \ |
| git -C repo commit-graph write --stdin-commits |
| ' |
| |
| test_expect_success 'parse_commit_in_graph works for non-the_repository' ' |
| test-tool repository parse_commit_in_graph \ |
| repo/.git repo "$(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 "$(git -C repo rev-parse one)" >actual && |
| git -C repo rev-parse one^{tree} >expect && |
| test_cmp expect actual |
| ' |
| |
| test_expect_success 'corrupt commit-graph write (broken parent)' ' |
| rm -rf repo && |
| git init repo && |
| ( |
| cd repo && |
| empty="$(git mktree </dev/null)" && |
| cat >broken <<-EOF && |
| tree $empty |
| parent $ZERO_OID |
| author whatever <whatever@example.com> 1234 -0000 |
| committer whatever <whatever@example.com> 1234 -0000 |
| |
| broken commit |
| EOF |
| broken="$(git hash-object -w -t commit --literally broken)" && |
| git commit-tree -p "$broken" -m "good commit" "$empty" >good && |
| test_must_fail git commit-graph write --stdin-commits \ |
| <good 2>test_err && |
| test_i18ngrep "unable to parse commit" test_err |
| ) |
| ' |
| |
| test_expect_success 'corrupt commit-graph write (missing tree)' ' |
| rm -rf repo && |
| git init repo && |
| ( |
| cd repo && |
| tree="$(git mktree </dev/null)" && |
| cat >broken <<-EOF && |
| parent $ZERO_OID |
| author whatever <whatever@example.com> 1234 -0000 |
| committer whatever <whatever@example.com> 1234 -0000 |
| |
| broken commit |
| EOF |
| broken="$(git hash-object -w -t commit --literally broken)" && |
| git commit-tree -p "$broken" -m "good" "$tree" >good && |
| test_must_fail git commit-graph write --stdin-commits \ |
| <good 2>test_err && |
| test_i18ngrep "unable to parse commit" test_err |
| ) |
| ' |
| |
| # We test the overflow-related code with the following repo history: |
| # |
| # 4:F - 5:N - 6:U |
| # / \ |
| # 1:U - 2:N - 3:U M:N |
| # \ / |
| # 7:N - 8:F - 9:N |
| # |
| # Here the commits denoted by U have committer date of zero seconds |
| # since Unix epoch, the commits denoted by N have committer date |
| # starting from 1112354055 seconds since Unix epoch (default committer |
| # date for the test suite), and the commits denoted by F have committer |
| # date of (2 ^ 31 - 2) seconds since Unix epoch. |
| # |
| # The largest offset observed is 2 ^ 31, just large enough to overflow. |
| # |
| |
| test_expect_success 'set up and verify repo with generation data overflow chunk' ' |
| objdir=".git/objects" && |
| UNIX_EPOCH_ZERO="@0 +0000" && |
| FUTURE_DATE="@2147483646 +0000" && |
| cd "$TRASH_DIRECTORY" && |
| mkdir repo && |
| cd repo && |
| git init && |
| test_commit --date "$UNIX_EPOCH_ZERO" 1 && |
| test_commit 2 && |
| test_commit --date "$UNIX_EPOCH_ZERO" 3 && |
| git commit-graph write --reachable && |
| graph_read_expect 3 generation_data && |
| test_commit --date "$FUTURE_DATE" 4 && |
| test_commit 5 && |
| test_commit --date "$UNIX_EPOCH_ZERO" 6 && |
| git branch left && |
| git reset --hard 3 && |
| test_commit 7 && |
| test_commit --date "$FUTURE_DATE" 8 && |
| test_commit 9 && |
| git branch right && |
| git reset --hard 3 && |
| test_merge M left right && |
| git commit-graph write --reachable && |
| graph_read_expect 10 "generation_data generation_data_overflow" && |
| git commit-graph verify |
| ' |
| |
| graph_git_behavior 'generation data overflow chunk repo' repo left right |
| |
| test_expect_success 'overflow during generation version upgrade' ' |
| git init overflow-v2-upgrade && |
| ( |
| cd overflow-v2-upgrade && |
| |
| # This commit will have a date at two seconds past the Epoch, |
| # and a (v1) generation number of 1, since it is a root commit. |
| # |
| # The offset will then be computed as 1-2, which will underflow |
| # to 2^31, which is greater than the v2 offset small limit of |
| # 2^31-1. |
| # |
| # This is sufficient to need a large offset table for the v2 |
| # generation numbers. |
| test_commit --date "@2 +0000" base && |
| git repack -d && |
| |
| # Test that upgrading from generation v1 to v2 correctly |
| # produces the overflow table. |
| git -c commitGraph.generationVersion=1 commit-graph write && |
| git -c commitGraph.generationVersion=2 commit-graph write \ |
| --changed-paths && |
| |
| git rev-list --all |
| ) |
| ' |
| |
| test_done |