diff options
Diffstat (limited to 't/t5324-split-commit-graph.sh')
| -rwxr-xr-x | t/t5324-split-commit-graph.sh | 193 |
1 files changed, 187 insertions, 6 deletions
diff --git a/t/t5324-split-commit-graph.sh b/t/t5324-split-commit-graph.sh index 4d3842b83b..587226ed10 100755 --- a/t/t5324-split-commit-graph.sh +++ b/t/t5324-split-commit-graph.sh @@ -13,11 +13,11 @@ test_expect_success 'setup repo' ' infodir=".git/objects/info" && graphdir="$infodir/commit-graphs" && 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 @@ -31,9 +31,9 @@ graph_read_expect() { NUM_BASE=$2 fi cat >expect <<- EOF - header: 43475048 1 $(test_oid oid_version) 3 $NUM_BASE + header: 43475048 1 $(test_oid oid_version) 4 $NUM_BASE num_commits: $1 - chunks: oid_fanout oid_lookup commit_metadata + chunks: oid_fanout oid_lookup commit_metadata generation_data EOF test-tool read-graph >output && test_cmp expect output @@ -453,4 +453,185 @@ test_expect_success 'prevent regression for duplicate commits across layers' ' git -C dup commit-graph verify ' +NUM_FIRST_LAYER_COMMITS=64 +NUM_SECOND_LAYER_COMMITS=16 +NUM_THIRD_LAYER_COMMITS=7 +NUM_FOURTH_LAYER_COMMITS=8 +NUM_FIFTH_LAYER_COMMITS=16 +SECOND_LAYER_SEQUENCE_START=$(($NUM_FIRST_LAYER_COMMITS + 1)) +SECOND_LAYER_SEQUENCE_END=$(($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 -c commitGraph.generationVersion=2 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 -c commitGraph.generationVersion=1 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 |