On Thu, Sep 17, 2020 at 10:59:57PM -0400, Taylor Blau wrote: > Introduce a configuration variable to specify a default value for the > recently-introduce '--max-new-filters' option of 'git commit-graph > write'. The replacement in [1] causes a conflict when applying this patch after it, so here is a suggested resolution: [1]: https://lore.kernel.org/git/cover.1600397826.git.me@xxxxxxxxxxxx/ --- >8 --- Subject: [PATCH] commit-graph: introduce 'commitGraph.maxNewFilters' Introduce a configuration variable to specify a default value for the recently-introduce '--max-new-filters' option of 'git commit-graph write'. Helped-by: Junio C Hamano <gitster@xxxxxxxxx> Signed-off-by: Taylor Blau <me@xxxxxxxxxxxx> Signed-off-by: Junio C Hamano <gitster@xxxxxxxxx> --- Documentation/config/commitgraph.txt | 4 ++++ Documentation/git-commit-graph.txt | 3 ++- builtin/commit-graph.c | 14 ++++++++++++++ t/t4216-log-bloom.sh | 24 +++++++++++++++++++++++- 4 files changed, 43 insertions(+), 2 deletions(-) diff --git a/Documentation/config/commitgraph.txt b/Documentation/config/commitgraph.txt index cff0797b54..4582c39fc4 100644 --- a/Documentation/config/commitgraph.txt +++ b/Documentation/config/commitgraph.txt @@ -1,3 +1,7 @@ +commitGraph.maxNewFilters:: + Specifies the default value for the `--max-new-filters` option of `git + commit-graph write` (c.f., linkgit:git-commit-graph[1]). + commitGraph.readChangedPaths:: If true, then git will use the changed-path Bloom filters in the commit-graph file (if it exists, and they are present). Defaults to diff --git a/Documentation/git-commit-graph.txt b/Documentation/git-commit-graph.txt index 8c75855782..b6ddbb4700 100644 --- a/Documentation/git-commit-graph.txt +++ b/Documentation/git-commit-graph.txt @@ -71,7 +71,8 @@ With the `--max-new-filters=<n>` option, generate at most `n` new Bloom filters (if `--changed-paths` is specified). If `n` is `-1`, no limit is enforced. Only commits present in the new layer count against this limit. To retroactively compute Bloom filters over earlier layers, it is -advised to use `--split=replace`. +advised to use `--split=replace`. Overrides the +`commitGraph.maxNewFilters` configuration. + With the `--split[=<strategy>]` option, write the commit-graph as a chain of multiple commit-graph files stored in diff --git a/builtin/commit-graph.c b/builtin/commit-graph.c index 5df9b2ef80..988445abdf 100644 --- a/builtin/commit-graph.c +++ b/builtin/commit-graph.c @@ -181,6 +181,18 @@ static int write_option_max_new_filters(const struct option *opt, return 0; } +static int git_commit_graph_write_config(const char *var, const char *value, + void *cb) +{ + if (!strcmp(var, "commitgraph.maxnewfilters")) + write_opts.max_new_filters = git_config_int(var, value); + /* + * No need to fall-back to 'git_default_config', since this was already + * called in 'cmd_commit_graph()'. + */ + return 0; +} + static int graph_write(int argc, const char **argv) { struct string_list pack_indexes = STRING_LIST_INIT_NODUP; @@ -231,6 +243,8 @@ static int graph_write(int argc, const char **argv) trace2_cmd_mode("write"); + git_config(git_commit_graph_write_config, &opts); + argc = parse_options(argc, argv, NULL, builtin_commit_graph_write_options, builtin_commit_graph_write_usage, 0); diff --git a/t/t4216-log-bloom.sh b/t/t4216-log-bloom.sh index af0975c841..d11040ce41 100755 --- a/t/t4216-log-bloom.sh +++ b/t/t4216-log-bloom.sh @@ -330,13 +330,15 @@ test_expect_success 'Bloom generation is limited by --max-new-filters' ' ' test_expect_success 'Bloom generation backfills previously-skipped filters' ' + # Check specifying commitGraph.maxNewFilters over "git config" works. + test_config -C limits commitGraph.maxNewFilters 1 && ( cd limits && rm -f trace.event && GIT_TRACE2_EVENT="$(pwd)/trace.event" \ git commit-graph write --reachable --changed-paths \ - --split=replace --max-new-filters=1 && + --split=replace && test_filter_computed 1 trace.event && test_filter_not_computed 4 trace.event && test_filter_trunc_empty 0 trace.event && @@ -344,6 +346,26 @@ test_expect_success 'Bloom generation backfills previously-skipped filters' ' ) ' +test_expect_success '--max-new-filters overrides configuration' ' + git init override && + test_when_finished "rm -fr override" && + test_config -C override commitGraph.maxNewFilters 2 && + ( + cd override && + test_commit one && + test_commit two && + + rm -f trace.event && + GIT_TRACE2_EVENT="$(pwd)/trace.event" \ + git commit-graph write --reachable --changed-paths \ + --max-new-filters=1 && + test_filter_computed 1 trace.event && + test_filter_not_computed 1 trace.event && + test_filter_trunc_empty 0 trace.event && + test_filter_trunc_large 0 trace.event + ) +' + test_expect_success 'Bloom generation backfills empty commits' ' git init empty && test_when_finished "rm -fr empty" && -- 2.28.0.510.g375ecf1f36
