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https://github.com/git/git
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Merge branch 'ds/commit-graph-generation-config'
A new configuration variable has been introduced to allow choosing which version of the generation number gets used in the commit-graph file. * ds/commit-graph-generation-config: commit-graph: use config to specify generation type commit-graph: create local repository pointer
This commit is contained in:
commit
d20fa3cf9d
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@ -1,3 +1,9 @@
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commitGraph.generationVersion::
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Specifies the type of generation number version to use when writing
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or reading the commit-graph file. If version 1 is specified, then
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the corrected commit dates will not be written or read. Defaults to
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2.
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commitGraph.maxNewFilters::
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commitGraph.maxNewFilters::
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Specifies the default value for the `--max-new-filters` option of `git
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Specifies the default value for the `--max-new-filters` option of `git
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commit-graph write` (c.f., linkgit:git-commit-graph[1]).
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commit-graph write` (c.f., linkgit:git-commit-graph[1]).
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@ -96,6 +96,13 @@ define_commit_slab(commit_graph_data_slab, struct commit_graph_data);
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static struct commit_graph_data_slab commit_graph_data_slab =
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static struct commit_graph_data_slab commit_graph_data_slab =
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COMMIT_SLAB_INIT(1, commit_graph_data_slab);
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COMMIT_SLAB_INIT(1, commit_graph_data_slab);
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static int get_configured_generation_version(struct repository *r)
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{
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int version = 2;
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repo_config_get_int(r, "commitgraph.generationversion", &version);
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return version;
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}
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uint32_t commit_graph_position(const struct commit *c)
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uint32_t commit_graph_position(const struct commit *c)
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{
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{
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struct commit_graph_data *data =
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struct commit_graph_data *data =
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@ -394,10 +401,13 @@ struct commit_graph *parse_commit_graph(struct repository *r,
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pair_chunk(cf, GRAPH_CHUNKID_DATA, &graph->chunk_commit_data);
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pair_chunk(cf, GRAPH_CHUNKID_DATA, &graph->chunk_commit_data);
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pair_chunk(cf, GRAPH_CHUNKID_EXTRAEDGES, &graph->chunk_extra_edges);
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pair_chunk(cf, GRAPH_CHUNKID_EXTRAEDGES, &graph->chunk_extra_edges);
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pair_chunk(cf, GRAPH_CHUNKID_BASE, &graph->chunk_base_graphs);
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pair_chunk(cf, GRAPH_CHUNKID_BASE, &graph->chunk_base_graphs);
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pair_chunk(cf, GRAPH_CHUNKID_GENERATION_DATA,
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&graph->chunk_generation_data);
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if (get_configured_generation_version(r) >= 2) {
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pair_chunk(cf, GRAPH_CHUNKID_GENERATION_DATA_OVERFLOW,
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pair_chunk(cf, GRAPH_CHUNKID_GENERATION_DATA,
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&graph->chunk_generation_data_overflow);
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&graph->chunk_generation_data);
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pair_chunk(cf, GRAPH_CHUNKID_GENERATION_DATA_OVERFLOW,
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&graph->chunk_generation_data_overflow);
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}
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if (r->settings.commit_graph_read_changed_paths) {
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if (r->settings.commit_graph_read_changed_paths) {
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pair_chunk(cf, GRAPH_CHUNKID_BLOOMINDEXES,
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pair_chunk(cf, GRAPH_CHUNKID_BLOOMINDEXES,
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@ -1839,8 +1849,6 @@ static int write_commit_graph_file(struct write_commit_graph_context *ctx)
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add_chunk(cf, GRAPH_CHUNKID_DATA, (hashsz + 16) * ctx->commits.nr,
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add_chunk(cf, GRAPH_CHUNKID_DATA, (hashsz + 16) * ctx->commits.nr,
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write_graph_chunk_data);
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write_graph_chunk_data);
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if (git_env_bool(GIT_TEST_COMMIT_GRAPH_NO_GDAT, 0))
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ctx->write_generation_data = 0;
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if (ctx->write_generation_data)
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if (ctx->write_generation_data)
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add_chunk(cf, GRAPH_CHUNKID_GENERATION_DATA,
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add_chunk(cf, GRAPH_CHUNKID_GENERATION_DATA,
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sizeof(uint32_t) * ctx->commits.nr,
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sizeof(uint32_t) * ctx->commits.nr,
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@ -2223,6 +2231,7 @@ int write_commit_graph(struct object_directory *odb,
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enum commit_graph_write_flags flags,
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enum commit_graph_write_flags flags,
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const struct commit_graph_opts *opts)
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const struct commit_graph_opts *opts)
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{
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{
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struct repository *r = the_repository;
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struct write_commit_graph_context *ctx;
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struct write_commit_graph_context *ctx;
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uint32_t i;
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uint32_t i;
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int res = 0;
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int res = 0;
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@ -2230,23 +2239,23 @@ int write_commit_graph(struct object_directory *odb,
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struct bloom_filter_settings bloom_settings = DEFAULT_BLOOM_FILTER_SETTINGS;
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struct bloom_filter_settings bloom_settings = DEFAULT_BLOOM_FILTER_SETTINGS;
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struct topo_level_slab topo_levels;
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struct topo_level_slab topo_levels;
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prepare_repo_settings(the_repository);
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prepare_repo_settings(r);
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if (!the_repository->settings.core_commit_graph) {
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if (!r->settings.core_commit_graph) {
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warning(_("attempting to write a commit-graph, but 'core.commitGraph' is disabled"));
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warning(_("attempting to write a commit-graph, but 'core.commitGraph' is disabled"));
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return 0;
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return 0;
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}
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}
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if (!commit_graph_compatible(the_repository))
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if (!commit_graph_compatible(r))
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return 0;
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return 0;
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CALLOC_ARRAY(ctx, 1);
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CALLOC_ARRAY(ctx, 1);
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ctx->r = the_repository;
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ctx->r = r;
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ctx->odb = odb;
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ctx->odb = odb;
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ctx->append = flags & COMMIT_GRAPH_WRITE_APPEND ? 1 : 0;
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ctx->append = flags & COMMIT_GRAPH_WRITE_APPEND ? 1 : 0;
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ctx->report_progress = flags & COMMIT_GRAPH_WRITE_PROGRESS ? 1 : 0;
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ctx->report_progress = flags & COMMIT_GRAPH_WRITE_PROGRESS ? 1 : 0;
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ctx->split = flags & COMMIT_GRAPH_WRITE_SPLIT ? 1 : 0;
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ctx->split = flags & COMMIT_GRAPH_WRITE_SPLIT ? 1 : 0;
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ctx->opts = opts;
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ctx->opts = opts;
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ctx->total_bloom_filter_data_size = 0;
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ctx->total_bloom_filter_data_size = 0;
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ctx->write_generation_data = 1;
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ctx->write_generation_data = (get_configured_generation_version(r) == 2);
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ctx->num_generation_data_overflows = 0;
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ctx->num_generation_data_overflows = 0;
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bloom_settings.bits_per_entry = git_env_ulong("GIT_TEST_BLOOM_SETTINGS_BITS_PER_ENTRY",
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bloom_settings.bits_per_entry = git_env_ulong("GIT_TEST_BLOOM_SETTINGS_BITS_PER_ENTRY",
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@ -6,7 +6,6 @@
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#include "oidset.h"
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#include "oidset.h"
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#define GIT_TEST_COMMIT_GRAPH "GIT_TEST_COMMIT_GRAPH"
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#define GIT_TEST_COMMIT_GRAPH "GIT_TEST_COMMIT_GRAPH"
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#define GIT_TEST_COMMIT_GRAPH_NO_GDAT "GIT_TEST_COMMIT_GRAPH_NO_GDAT"
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#define GIT_TEST_COMMIT_GRAPH_DIE_ON_PARSE "GIT_TEST_COMMIT_GRAPH_DIE_ON_PARSE"
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#define GIT_TEST_COMMIT_GRAPH_DIE_ON_PARSE "GIT_TEST_COMMIT_GRAPH_DIE_ON_PARSE"
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#define GIT_TEST_COMMIT_GRAPH_CHANGED_PATHS "GIT_TEST_COMMIT_GRAPH_CHANGED_PATHS"
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#define GIT_TEST_COMMIT_GRAPH_CHANGED_PATHS "GIT_TEST_COMMIT_GRAPH_CHANGED_PATHS"
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3
t/README
3
t/README
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@ -387,9 +387,6 @@ GIT_TEST_COMMIT_GRAPH=<boolean>, when true, forces the commit-graph to
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be written after every 'git commit' command, and overrides the
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be written after every 'git commit' command, and overrides the
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'core.commitGraph' setting to true.
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'core.commitGraph' setting to true.
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GIT_TEST_COMMIT_GRAPH_NO_GDAT=<boolean>, when true, forces the
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commit-graph to be written without generation data chunk.
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GIT_TEST_COMMIT_GRAPH_CHANGED_PATHS=<boolean>, when true, forces
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GIT_TEST_COMMIT_GRAPH_CHANGED_PATHS=<boolean>, when true, forces
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commit-graph write to compute and write changed path Bloom filters for
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commit-graph write to compute and write changed path Bloom filters for
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every 'git commit-graph write', as if the `--changed-paths` option was
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every 'git commit-graph write', as if the `--changed-paths` option was
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@ -475,7 +475,7 @@ test_expect_success 'lower layers have overflow chunk' '
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test_expect_success 'git commit-graph verify' '
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test_expect_success 'git commit-graph verify' '
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cd "$TRASH_DIRECTORY/full" &&
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cd "$TRASH_DIRECTORY/full" &&
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git rev-parse commits/8 | GIT_TEST_COMMIT_GRAPH_NO_GDAT=1 git commit-graph write --stdin-commits &&
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git rev-parse commits/8 | git -c commitGraph.generationVersion=1 commit-graph write --stdin-commits &&
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git commit-graph verify >output &&
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git commit-graph verify >output &&
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graph_read_expect 9 extra_edges
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graph_read_expect 9 extra_edges
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'
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'
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@ -489,7 +489,7 @@ test_expect_success 'setup repo for mixed generation commit-graph-chain' '
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test_commit $i &&
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test_commit $i &&
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git branch commits/$i || return 1
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git branch commits/$i || return 1
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done &&
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done &&
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git commit-graph write --reachable --split &&
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git -c commitGraph.generationVersion=2 commit-graph write --reachable --split &&
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graph_read_expect $NUM_FIRST_LAYER_COMMITS &&
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graph_read_expect $NUM_FIRST_LAYER_COMMITS &&
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test_line_count = 1 $graphdir/commit-graph-chain &&
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test_line_count = 1 $graphdir/commit-graph-chain &&
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for i in $(test_seq $SECOND_LAYER_SEQUENCE_START $SECOND_LAYER_SEQUENCE_END)
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for i in $(test_seq $SECOND_LAYER_SEQUENCE_START $SECOND_LAYER_SEQUENCE_END)
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@ -497,7 +497,7 @@ test_expect_success 'setup repo for mixed generation commit-graph-chain' '
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test_commit $i &&
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test_commit $i &&
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git branch commits/$i || return 1
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git branch commits/$i || return 1
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done &&
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done &&
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GIT_TEST_COMMIT_GRAPH_NO_GDAT=1 git commit-graph write --reachable --split=no-merge &&
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git -c commitGraph.generationVersion=1 commit-graph write --reachable --split=no-merge &&
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test_line_count = 2 $graphdir/commit-graph-chain &&
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test_line_count = 2 $graphdir/commit-graph-chain &&
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test-tool read-graph >output &&
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test-tool read-graph >output &&
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cat >expect <<-EOF &&
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cat >expect <<-EOF &&
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@ -55,7 +55,7 @@ test_expect_success 'setup' '
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git show-ref -s commit-5-5 | git commit-graph write --stdin-commits &&
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git show-ref -s commit-5-5 | git commit-graph write --stdin-commits &&
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mv .git/objects/info/commit-graph commit-graph-half &&
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mv .git/objects/info/commit-graph commit-graph-half &&
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chmod u+w commit-graph-half &&
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chmod u+w commit-graph-half &&
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GIT_TEST_COMMIT_GRAPH_NO_GDAT=1 git commit-graph write --reachable &&
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git -c commitGraph.generationVersion=1 commit-graph write --reachable &&
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mv .git/objects/info/commit-graph commit-graph-no-gdat &&
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mv .git/objects/info/commit-graph commit-graph-no-gdat &&
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chmod u+w commit-graph-no-gdat &&
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chmod u+w commit-graph-no-gdat &&
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git config core.commitGraph true
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git config core.commitGraph true
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