diff options
Diffstat (limited to 't/t5324-split-commit-graph.sh')
| -rwxr-xr-x | t/t5324-split-commit-graph.sh | 299 |
1 files changed, 291 insertions, 8 deletions
diff --git a/t/t5324-split-commit-graph.sh b/t/t5324-split-commit-graph.sh index 53b2e6b..8e90f34 100755 --- a/t/t5324-split-commit-graph.sh +++ b/t/t5324-split-commit-graph.sh @@ -4,6 +4,7 @@ test_description='split commit graph' . ./test-lib.sh GIT_TEST_COMMIT_GRAPH=0 +GIT_TEST_COMMIT_GRAPH_CHANGED_PATHS=0 test_expect_success 'setup repo' ' git init && @@ -11,13 +12,15 @@ test_expect_success 'setup repo' ' git config gc.writeCommitGraph false && infodir=".git/objects/info" && graphdir="$infodir/commit-graphs" && - test_oid_init && test_oid_cache <<-EOM - shallow sha1:1760 - shallow sha256:2064 + shallow sha1:2132 + shallow sha256:2436 - base sha1:1376 - base sha256:1496 + base sha1:1408 + base sha256:1528 + + oid_version sha1:1 + oid_version sha256:2 EOM ' @@ -28,14 +31,18 @@ graph_read_expect() { NUM_BASE=$2 fi cat >expect <<- EOF - header: 43475048 1 1 3 $NUM_BASE + header: 43475048 1 $(test_oid oid_version) 4 $NUM_BASE num_commits: $1 - chunks: oid_fanout oid_lookup commit_metadata + chunks: oid_fanout oid_lookup commit_metadata generation_data EOF test-tool read-graph >output && test_cmp expect output } +test_expect_success POSIXPERM 'tweak umask for modebit tests' ' + umask 022 +' + test_expect_success 'create commits and write commit-graph' ' for i in $(test_seq 3) do @@ -210,8 +217,14 @@ test_expect_success 'test merge stragety constants' ' git config core.commitGraph true && test_line_count = 2 $graphdir/commit-graph-chain && test_commit 15 && - git commit-graph write --reachable --split --size-multiple=10 --expire-time=1980-01-01 && + touch $graphdir/to-delete.graph $graphdir/to-keep.graph && + test-tool chmtime =1546362000 $graphdir/to-delete.graph && + test-tool chmtime =1546362001 $graphdir/to-keep.graph && + git commit-graph write --reachable --split --size-multiple=10 \ + --expire-time="2019-01-01 12:00 -05:00" && test_line_count = 1 $graphdir/commit-graph-chain && + test_path_is_missing $graphdir/to-delete.graph && + test_path_is_file $graphdir/to-keep.graph && ls $graphdir/graph-*.graph >graph-files && test_line_count = 3 graph-files ) && @@ -351,4 +364,274 @@ test_expect_success 'split across alternate where alternate is not split' ' test_cmp commit-graph .git/objects/info/commit-graph ' +test_expect_success '--split=no-merge always writes an incremental' ' + test_when_finished rm -rf a b && + rm -rf $graphdir $infodir/commit-graph && + git reset --hard commits/2 && + git rev-list HEAD~1 >a && + git rev-list HEAD >b && + git commit-graph write --split --stdin-commits <a && + git commit-graph write --split=no-merge --stdin-commits <b && + test_line_count = 2 $graphdir/commit-graph-chain +' + +test_expect_success '--split=replace replaces the chain' ' + rm -rf $graphdir $infodir/commit-graph && + git reset --hard commits/3 && + git rev-list -1 HEAD~2 >a && + git rev-list -1 HEAD~1 >b && + git rev-list -1 HEAD >c && + git commit-graph write --split=no-merge --stdin-commits <a && + git commit-graph write --split=no-merge --stdin-commits <b && + git commit-graph write --split=no-merge --stdin-commits <c && + test_line_count = 3 $graphdir/commit-graph-chain && + git commit-graph write --stdin-commits --split=replace <b && + test_path_is_missing $infodir/commit-graph && + test_path_is_file $graphdir/commit-graph-chain && + ls $graphdir/graph-*.graph >graph-files && + test_line_count = 1 graph-files && + verify_chain_files_exist $graphdir && + graph_read_expect 2 +' + +test_expect_success ULIMIT_FILE_DESCRIPTORS 'handles file descriptor exhaustion' ' + git init ulimit && + ( + cd ulimit && + for i in $(test_seq 64) + do + test_commit $i && + run_with_limited_open_files test_might_fail git commit-graph write \ + --split=no-merge --reachable || return 1 + done + ) +' + +while read mode modebits +do + test_expect_success POSIXPERM "split commit-graph respects core.sharedrepository $mode" ' + rm -rf $graphdir $infodir/commit-graph && + git reset --hard commits/1 && + test_config core.sharedrepository "$mode" && + git commit-graph write --split --reachable && + ls $graphdir/graph-*.graph >graph-files && + test_line_count = 1 graph-files && + echo "$modebits" >expect && + test_modebits $graphdir/graph-*.graph >actual && + test_cmp expect actual && + test_modebits $graphdir/commit-graph-chain >actual && + test_cmp expect actual + ' +done <<\EOF +0666 -r--r--r-- +0600 -r-------- +EOF + +test_expect_success '--split=replace with partial Bloom data' ' + rm -rf $graphdir $infodir/commit-graph && + git reset --hard commits/3 && + git rev-list -1 HEAD~2 >a && + git rev-list -1 HEAD~1 >b && + git commit-graph write --split=no-merge --stdin-commits --changed-paths <a && + git commit-graph write --split=no-merge --stdin-commits <b && + git commit-graph write --split=replace --stdin-commits --changed-paths <c && + ls $graphdir/graph-*.graph >graph-files && + test_line_count = 1 graph-files && + verify_chain_files_exist $graphdir +' + +test_expect_success 'prevent regression for duplicate commits across layers' ' + git init dup && + git -C dup commit --allow-empty -m one && + git -C dup -c core.commitGraph=false commit-graph write --split=no-merge --reachable 2>err && + test_i18ngrep "attempting to write a commit-graph" err && + git -C dup commit-graph write --split=no-merge --reachable && + git -C dup commit --allow-empty -m two && + git -C dup commit-graph write --split=no-merge --reachable && + git -C dup commit --allow-empty -m three && + git -C dup commit-graph write --split --reachable && + git -C dup commit-graph verify +' + +NUM_FIRST_LAYER_COMMITS=64 +NUM_SECOND_LAYER_COMMITS=16 +NUM_THIRD_LAYER_COMMITS=7 +NUM_FOURTH_LAYER_COMMITS=8 +NUM_FIFTH_LAYER_COMMITS=16 +SECOND_LAYER_SEQUENCE_START=$(($NUM_FIRST_LAYER_COMMITS + 1)) +SECOND_LAYER_SEQUENCE_END=$(($SECOND_LAYER_SEQUENCE_START + $NUM_SECOND_LAYER_COMMITS - 1)) +THIRD_LAYER_SEQUENCE_START=$(($SECOND_LAYER_SEQUENCE_END + 1)) +THIRD_LAYER_SEQUENCE_END=$(($THIRD_LAYER_SEQUENCE_START + $NUM_THIRD_LAYER_COMMITS - 1)) +FOURTH_LAYER_SEQUENCE_START=$(($THIRD_LAYER_SEQUENCE_END + 1)) +FOURTH_LAYER_SEQUENCE_END=$(($FOURTH_LAYER_SEQUENCE_START + $NUM_FOURTH_LAYER_COMMITS - 1)) +FIFTH_LAYER_SEQUENCE_START=$(($FOURTH_LAYER_SEQUENCE_END + 1)) +FIFTH_LAYER_SEQUENCE_END=$(($FIFTH_LAYER_SEQUENCE_START + $NUM_FIFTH_LAYER_COMMITS - 1)) + +# Current split graph chain: +# +# 16 commits (No GDAT) +# ------------------------ +# 64 commits (GDAT) +# +test_expect_success 'setup repo for mixed generation commit-graph-chain' ' + graphdir=".git/objects/info/commit-graphs" && + test_oid_cache <<-EOF && + oid_version sha1:1 + oid_version sha256:2 + EOF + git init mixed && + ( + cd mixed && + git config core.commitGraph true && + git config gc.writeCommitGraph false && + for i in $(test_seq $NUM_FIRST_LAYER_COMMITS) + do + test_commit $i && + git branch commits/$i || return 1 + done && + git commit-graph write --reachable --split && + graph_read_expect $NUM_FIRST_LAYER_COMMITS && + test_line_count = 1 $graphdir/commit-graph-chain && + for i in $(test_seq $SECOND_LAYER_SEQUENCE_START $SECOND_LAYER_SEQUENCE_END) + do + test_commit $i && + git branch commits/$i || return 1 + done && + GIT_TEST_COMMIT_GRAPH_NO_GDAT=1 git commit-graph write --reachable --split=no-merge && + test_line_count = 2 $graphdir/commit-graph-chain && + test-tool read-graph >output && + cat >expect <<-EOF && + header: 43475048 1 $(test_oid oid_version) 4 1 + num_commits: $NUM_SECOND_LAYER_COMMITS + chunks: oid_fanout oid_lookup commit_metadata + EOF + test_cmp expect output && + git commit-graph verify && + cat $graphdir/commit-graph-chain + ) +' + +# The new layer will be added without generation data chunk as it was not +# present on the layer underneath it. +# +# 7 commits (No GDAT) +# ------------------------ +# 16 commits (No GDAT) +# ------------------------ +# 64 commits (GDAT) +# +test_expect_success 'do not write generation data chunk if not present on existing tip' ' + git clone mixed mixed-no-gdat && + ( + cd mixed-no-gdat && + for i in $(test_seq $THIRD_LAYER_SEQUENCE_START $THIRD_LAYER_SEQUENCE_END) + do + test_commit $i && + git branch commits/$i || return 1 + done && + git commit-graph write --reachable --split=no-merge && + test_line_count = 3 $graphdir/commit-graph-chain && + test-tool read-graph >output && + cat >expect <<-EOF && + header: 43475048 1 $(test_oid oid_version) 4 2 + num_commits: $NUM_THIRD_LAYER_COMMITS + chunks: oid_fanout oid_lookup commit_metadata + EOF + test_cmp expect output && + git commit-graph verify + ) +' + +# Number of commits in each layer of the split-commit graph before merge: +# +# 8 commits (No GDAT) +# ------------------------ +# 7 commits (No GDAT) +# ------------------------ +# 16 commits (No GDAT) +# ------------------------ +# 64 commits (GDAT) +# +# The top two layers are merged and do not have generation data chunk as layer below them does +# not have generation data chunk. +# +# 15 commits (No GDAT) +# ------------------------ +# 16 commits (No GDAT) +# ------------------------ +# 64 commits (GDAT) +# +test_expect_success 'do not write generation data chunk if the topmost remaining layer does not have generation data chunk' ' + git clone mixed-no-gdat mixed-merge-no-gdat && + ( + cd mixed-merge-no-gdat && + for i in $(test_seq $FOURTH_LAYER_SEQUENCE_START $FOURTH_LAYER_SEQUENCE_END) + do + test_commit $i && + git branch commits/$i || return 1 + done && + git commit-graph write --reachable --split --size-multiple 1 && + test_line_count = 3 $graphdir/commit-graph-chain && + test-tool read-graph >output && + cat >expect <<-EOF && + header: 43475048 1 $(test_oid oid_version) 4 2 + num_commits: $(($NUM_THIRD_LAYER_COMMITS + $NUM_FOURTH_LAYER_COMMITS)) + chunks: oid_fanout oid_lookup commit_metadata + EOF + test_cmp expect output && + git commit-graph verify + ) +' + +# Number of commits in each layer of the split-commit graph before merge: +# +# 16 commits (No GDAT) +# ------------------------ +# 15 commits (No GDAT) +# ------------------------ +# 16 commits (No GDAT) +# ------------------------ +# 64 commits (GDAT) +# +# The top three layers are merged and has generation data chunk as the topmost remaining layer +# has generation data chunk. +# +# 47 commits (GDAT) +# ------------------------ +# 64 commits (GDAT) +# +test_expect_success 'write generation data chunk if topmost remaining layer has generation data chunk' ' + git clone mixed-merge-no-gdat mixed-merge-gdat && + ( + cd mixed-merge-gdat && + for i in $(test_seq $FIFTH_LAYER_SEQUENCE_START $FIFTH_LAYER_SEQUENCE_END) + do + test_commit $i && + git branch commits/$i || return 1 + done && + git commit-graph write --reachable --split --size-multiple 1 && + test_line_count = 2 $graphdir/commit-graph-chain && + test-tool read-graph >output && + cat >expect <<-EOF && + header: 43475048 1 $(test_oid oid_version) 5 1 + num_commits: $(($NUM_SECOND_LAYER_COMMITS + $NUM_THIRD_LAYER_COMMITS + $NUM_FOURTH_LAYER_COMMITS + $NUM_FIFTH_LAYER_COMMITS)) + chunks: oid_fanout oid_lookup commit_metadata generation_data + EOF + test_cmp expect output + ) +' + +test_expect_success 'write generation data chunk when commit-graph chain is replaced' ' + git clone mixed mixed-replace && + ( + cd mixed-replace && + git commit-graph write --reachable --split=replace && + test_path_is_file $graphdir/commit-graph-chain && + test_line_count = 1 $graphdir/commit-graph-chain && + verify_chain_files_exist $graphdir && + graph_read_expect $(($NUM_FIRST_LAYER_COMMITS + $NUM_SECOND_LAYER_COMMITS)) && + git commit-graph verify + ) +' + test_done |