From: "Derrick Stolee via GitGitGadget" <gitgitgadget@gmail.com>
To: git@vger.kernel.org
Cc: peff@peff.net, avarab@gmail.com, git@jeffhostetler.com,
jrnieder@google.com, steadmon@google.com,
Junio C Hamano <gitster@pobox.com>,
Derrick Stolee <dstolee@microsoft.com>
Subject: [PATCH 11/17] commit-graph: extract write_commit_graph_file()
Date: Wed, 08 May 2019 08:53:56 -0700 (PDT) [thread overview]
Message-ID: <3eee3667cf32c1049fa1f39264d36a33aa31d0f0.1557330827.git.gitgitgadget@gmail.com> (raw)
In-Reply-To: <pull.184.git.gitgitgadget@gmail.com>
From: Derrick Stolee <dstolee@microsoft.com>
The write_commit_graph() method is too complex, so we are
extracting methods one by one.
Extract write_commit_graph_file() that takes all of the information
in the context struct and writes the data to a commit-graph file.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
---
commit-graph.c | 155 +++++++++++++++++++++++++------------------------
1 file changed, 80 insertions(+), 75 deletions(-)
diff --git a/commit-graph.c b/commit-graph.c
index 16cdd7afb2..7723156964 100644
--- a/commit-graph.c
+++ b/commit-graph.c
@@ -1015,21 +1015,91 @@ static void copy_oids_to_commits(struct write_commit_graph_context *ctx)
stop_progress(&ctx->progress);
}
-int write_commit_graph(const char *obj_dir,
- struct string_list *pack_indexes,
- struct string_list *commit_hex,
- unsigned int flags)
+static int write_commit_graph_file(struct write_commit_graph_context *ctx)
{
- struct write_commit_graph_context *ctx;
+ uint32_t i;
struct hashfile *f;
- uint32_t i, count_distinct = 0;
- char *graph_name = NULL;
struct lock_file lk = LOCK_INIT;
uint32_t chunk_ids[5];
uint64_t chunk_offsets[5];
- int num_chunks;
const unsigned hashsz = the_hash_algo->rawsz;
struct strbuf progress_title = STRBUF_INIT;
+ int num_chunks = ctx->num_extra_edges ? 4 : 3;
+
+ ctx->graph_name = get_commit_graph_filename(ctx->obj_dir);
+ if (safe_create_leading_directories(ctx->graph_name)) {
+ UNLEAK(ctx->graph_name);
+ error(_("unable to create leading directories of %s"),
+ ctx->graph_name);
+ return errno;
+ }
+
+ hold_lock_file_for_update(&lk, ctx->graph_name, LOCK_DIE_ON_ERROR);
+ f = hashfd(lk.tempfile->fd, lk.tempfile->filename.buf);
+
+ hashwrite_be32(f, GRAPH_SIGNATURE);
+
+ hashwrite_u8(f, GRAPH_VERSION);
+ hashwrite_u8(f, oid_version());
+ hashwrite_u8(f, num_chunks);
+ hashwrite_u8(f, 0); /* unused padding byte */
+
+ chunk_ids[0] = GRAPH_CHUNKID_OIDFANOUT;
+ chunk_ids[1] = GRAPH_CHUNKID_OIDLOOKUP;
+ chunk_ids[2] = GRAPH_CHUNKID_DATA;
+ if (ctx->num_extra_edges)
+ chunk_ids[3] = GRAPH_CHUNKID_EXTRAEDGES;
+ else
+ chunk_ids[3] = 0;
+ chunk_ids[4] = 0;
+
+ chunk_offsets[0] = 8 + (num_chunks + 1) * GRAPH_CHUNKLOOKUP_WIDTH;
+ chunk_offsets[1] = chunk_offsets[0] + GRAPH_FANOUT_SIZE;
+ chunk_offsets[2] = chunk_offsets[1] + hashsz * ctx->commits.nr;
+ chunk_offsets[3] = chunk_offsets[2] + (hashsz + 16) * ctx->commits.nr;
+ chunk_offsets[4] = chunk_offsets[3] + 4 * ctx->num_extra_edges;
+
+ for (i = 0; i <= num_chunks; i++) {
+ uint32_t chunk_write[3];
+
+ chunk_write[0] = htonl(chunk_ids[i]);
+ chunk_write[1] = htonl(chunk_offsets[i] >> 32);
+ chunk_write[2] = htonl(chunk_offsets[i] & 0xffffffff);
+ hashwrite(f, chunk_write, 12);
+ }
+
+ if (ctx->report_progress) {
+ strbuf_addf(&progress_title,
+ Q_("Writing out commit graph in %d pass",
+ "Writing out commit graph in %d passes",
+ num_chunks),
+ num_chunks);
+ ctx->progress = start_delayed_progress(
+ progress_title.buf,
+ num_chunks * ctx->commits.nr);
+ }
+ write_graph_chunk_fanout(f, ctx);
+ write_graph_chunk_oids(f, hashsz, ctx);
+ write_graph_chunk_data(f, hashsz, ctx);
+ if (ctx->num_extra_edges)
+ write_graph_chunk_extra_edges(f, ctx);
+ stop_progress(&ctx->progress);
+ strbuf_release(&progress_title);
+
+ close_commit_graph(ctx->r);
+ finalize_hashfile(f, NULL, CSUM_HASH_IN_STREAM | CSUM_FSYNC);
+ commit_lock_file(&lk);
+
+ return 0;
+}
+
+int write_commit_graph(const char *obj_dir,
+ struct string_list *pack_indexes,
+ struct string_list *commit_hex,
+ unsigned int flags)
+{
+ struct write_commit_graph_context *ctx;
+ uint32_t i, count_distinct = 0;
int res = 0;
if (!commit_graph_compatible(the_repository))
@@ -1096,75 +1166,10 @@ int write_commit_graph(const char *obj_dir,
compute_generation_numbers(ctx);
- num_chunks = ctx->num_extra_edges ? 4 : 3;
-
- ctx->graph_name = get_commit_graph_filename(ctx->obj_dir);
- if (safe_create_leading_directories(ctx->graph_name)) {
- UNLEAK(ctx->graph_name);
- error(_("unable to create leading directories of %s"),
- ctx->graph_name);
- res = errno;
- goto cleanup;
- }
-
- hold_lock_file_for_update(&lk, ctx->graph_name, LOCK_DIE_ON_ERROR);
- f = hashfd(lk.tempfile->fd, lk.tempfile->filename.buf);
-
- hashwrite_be32(f, GRAPH_SIGNATURE);
-
- hashwrite_u8(f, GRAPH_VERSION);
- hashwrite_u8(f, oid_version());
- hashwrite_u8(f, num_chunks);
- hashwrite_u8(f, 0); /* unused padding byte */
-
- chunk_ids[0] = GRAPH_CHUNKID_OIDFANOUT;
- chunk_ids[1] = GRAPH_CHUNKID_OIDLOOKUP;
- chunk_ids[2] = GRAPH_CHUNKID_DATA;
- if (ctx->num_extra_edges)
- chunk_ids[3] = GRAPH_CHUNKID_EXTRAEDGES;
- else
- chunk_ids[3] = 0;
- chunk_ids[4] = 0;
-
- chunk_offsets[0] = 8 + (num_chunks + 1) * GRAPH_CHUNKLOOKUP_WIDTH;
- chunk_offsets[1] = chunk_offsets[0] + GRAPH_FANOUT_SIZE;
- chunk_offsets[2] = chunk_offsets[1] + hashsz * ctx->commits.nr;
- chunk_offsets[3] = chunk_offsets[2] + (hashsz + 16) * ctx->commits.nr;
- chunk_offsets[4] = chunk_offsets[3] + 4 * ctx->num_extra_edges;
-
- for (i = 0; i <= num_chunks; i++) {
- uint32_t chunk_write[3];
-
- chunk_write[0] = htonl(chunk_ids[i]);
- chunk_write[1] = htonl(chunk_offsets[i] >> 32);
- chunk_write[2] = htonl(chunk_offsets[i] & 0xffffffff);
- hashwrite(f, chunk_write, 12);
- }
-
- if (ctx->report_progress) {
- strbuf_addf(&progress_title,
- Q_("Writing out commit graph in %d pass",
- "Writing out commit graph in %d passes",
- num_chunks),
- num_chunks);
- ctx->progress = start_delayed_progress(
- progress_title.buf,
- num_chunks * ctx->commits.nr);
- }
- write_graph_chunk_fanout(f, ctx);
- write_graph_chunk_oids(f, hashsz, ctx);
- write_graph_chunk_data(f, hashsz, ctx);
- if (ctx->num_extra_edges)
- write_graph_chunk_extra_edges(f, ctx);
- stop_progress(&ctx->progress);
- strbuf_release(&progress_title);
-
- close_commit_graph(ctx->r);
- finalize_hashfile(f, NULL, CSUM_HASH_IN_STREAM | CSUM_FSYNC);
- commit_lock_file(&lk);
+ res = write_commit_graph_file(ctx);
cleanup:
- free(graph_name);
+ free(ctx->graph_name);
free(ctx->commits.list);
free(ctx->oids.list);
free(ctx);
--
gitgitgadget
next prev parent reply other threads:[~2019-05-08 15:54 UTC|newest]
Thread overview: 136+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-08 15:53 [PATCH 00/17] [RFC] Commit-graph: Write incremental files Derrick Stolee via GitGitGadget
2019-05-08 15:53 ` [PATCH 01/17] commit-graph: fix the_repository reference Derrick Stolee via GitGitGadget
2019-05-08 15:53 ` [PATCH 02/17] commit-graph: return with errors during write Derrick Stolee via GitGitGadget
2019-05-08 15:53 ` [PATCH 03/17] commit-graph: collapse parameters into flags Derrick Stolee via GitGitGadget
2019-05-08 15:53 ` [PATCH 04/17] commit-graph: remove Future Work section Derrick Stolee via GitGitGadget
2019-05-08 15:53 ` [PATCH 05/17] commit-graph: create write_commit_graph_context Derrick Stolee via GitGitGadget
2019-05-08 15:53 ` [PATCH 06/17] commit-graph: extract fill_oids_from_packs() Derrick Stolee via GitGitGadget
2019-05-08 15:53 ` [PATCH 07/17] commit-graph: extract fill_oids_from_commit_hex() Derrick Stolee via GitGitGadget
2019-05-08 15:53 ` [PATCH 08/17] commit-graph: extract fill_oids_from_all_packs() Derrick Stolee via GitGitGadget
2019-05-08 15:53 ` [PATCH 10/17] commit-graph: extract copy_oids_to_commits() Derrick Stolee via GitGitGadget
2019-05-08 15:53 ` [PATCH 09/17] commit-graph: extract count_distinct_commits() Derrick Stolee via GitGitGadget
2019-05-08 15:53 ` Derrick Stolee via GitGitGadget [this message]
2019-05-08 15:53 ` [PATCH 12/17] Documentation: describe split commit-graphs Derrick Stolee via GitGitGadget
2019-05-08 17:20 ` SZEDER Gábor
2019-05-08 19:00 ` Derrick Stolee
2019-05-08 20:11 ` Ævar Arnfjörð Bjarmason
2019-05-09 4:49 ` Junio C Hamano
2019-05-09 12:25 ` Derrick Stolee
2019-05-09 13:45 ` Derrick Stolee
2019-05-09 15:48 ` Ævar Arnfjörð Bjarmason
2019-05-09 17:08 ` Derrick Stolee
2019-05-09 21:45 ` Ævar Arnfjörð Bjarmason
2019-05-10 12:44 ` Derrick Stolee
2019-05-08 15:53 ` [PATCH 13/17] commit-graph: lay groundwork for incremental files Derrick Stolee via GitGitGadget
2019-05-08 15:53 ` [PATCH 14/17] commit-graph: load split commit-graph files Derrick Stolee via GitGitGadget
2019-05-08 15:54 ` [PATCH 15/17] commit-graph: write " Derrick Stolee via GitGitGadget
2019-05-08 15:54 ` [PATCH 16/17] commit-graph: add --split option Derrick Stolee via GitGitGadget
2019-05-08 15:54 ` [PATCH 17/17] fetch: add fetch.writeCommitGraph config setting Derrick Stolee via GitGitGadget
2019-05-09 8:07 ` Ævar Arnfjörð Bjarmason
2019-05-09 14:21 ` Derrick Stolee
2019-05-08 19:27 ` [PATCH 00/17] [RFC] Commit-graph: Write incremental files Ævar Arnfjörð Bjarmason
2019-05-22 19:53 ` [PATCH v2 00/11] " Derrick Stolee via GitGitGadget
2019-05-22 19:53 ` [PATCH v2 01/11] commit-graph: document commit-graph chains Derrick Stolee via GitGitGadget
2019-05-22 19:53 ` [PATCH v2 02/11] commit-graph: prepare for " Derrick Stolee via GitGitGadget
2019-05-22 19:53 ` [PATCH v2 03/11] commit-graph: rename commit_compare to oid_compare Derrick Stolee via GitGitGadget
2019-05-22 19:53 ` [PATCH v2 05/11] commit-graph: add base graphs chunk Derrick Stolee via GitGitGadget
2019-05-22 19:53 ` [PATCH v2 04/11] commit-graph: load commit-graph chains Derrick Stolee via GitGitGadget
2019-05-22 19:53 ` [PATCH v2 06/11] commit-graph: rearrange chunk count logic Derrick Stolee via GitGitGadget
2019-05-22 19:53 ` [PATCH v2 08/11] commit-graph: add --split option to builtin Derrick Stolee via GitGitGadget
2019-05-27 11:28 ` SZEDER Gábor
2019-05-22 19:53 ` [PATCH v2 07/11] commit-graph: write commit-graph chains Derrick Stolee via GitGitGadget
2019-05-22 19:53 ` [PATCH v2 09/11] commit-graph: merge " Derrick Stolee via GitGitGadget
2019-05-23 0:43 ` Ævar Arnfjörð Bjarmason
2019-05-23 13:00 ` Derrick Stolee
2019-05-22 19:53 ` [PATCH v2 10/11] commit-graph: allow cross-alternate chains Derrick Stolee via GitGitGadget
2019-05-22 19:53 ` [PATCH v2 11/11] commit-graph: expire commit-graph files Derrick Stolee via GitGitGadget
2019-06-03 16:03 ` [PATCH v3 00/14] Commit-graph: Write incremental files Derrick Stolee via GitGitGadget
2019-06-03 16:03 ` [PATCH v3 01/14] commit-graph: document commit-graph chains Derrick Stolee via GitGitGadget
2019-06-05 17:22 ` Junio C Hamano
2019-06-05 18:09 ` Derrick Stolee
2019-06-06 12:10 ` Philip Oakley
2019-06-06 17:09 ` Derrick Stolee
2019-06-06 21:59 ` Philip Oakley
2019-06-03 16:03 ` [PATCH v3 02/14] commit-graph: prepare for " Derrick Stolee via GitGitGadget
2019-06-03 16:03 ` [PATCH v3 03/14] commit-graph: rename commit_compare to oid_compare Derrick Stolee via GitGitGadget
2019-06-03 16:03 ` [PATCH v3 04/14] commit-graph: load commit-graph chains Derrick Stolee via GitGitGadget
2019-06-03 16:03 ` [PATCH v3 05/14] commit-graph: add base graphs chunk Derrick Stolee via GitGitGadget
2019-06-03 16:03 ` [PATCH v3 06/14] commit-graph: rearrange chunk count logic Derrick Stolee via GitGitGadget
2019-06-03 16:03 ` [PATCH v3 07/14] commit-graph: write commit-graph chains Derrick Stolee via GitGitGadget
2019-06-03 16:03 ` [PATCH v3 08/14] commit-graph: add --split option to builtin Derrick Stolee via GitGitGadget
2019-06-03 16:03 ` [PATCH v3 09/14] commit-graph: merge commit-graph chains Derrick Stolee via GitGitGadget
2019-06-03 16:03 ` [PATCH v3 10/14] commit-graph: allow cross-alternate chains Derrick Stolee via GitGitGadget
2019-06-03 16:03 ` [PATCH v3 11/14] commit-graph: expire commit-graph files Derrick Stolee via GitGitGadget
2019-06-03 16:04 ` [PATCH v3 12/14] commit-graph: create options for split files Derrick Stolee via GitGitGadget
2019-06-03 16:04 ` [PATCH v3 13/14] commit-graph: verify chains with --shallow mode Derrick Stolee via GitGitGadget
2019-06-03 16:04 ` [PATCH v3 14/14] commit-graph: clean up chains after flattened write Derrick Stolee via GitGitGadget
2019-06-06 14:15 ` [PATCH v4 00/14] Commit-graph: Write incremental files Derrick Stolee via GitGitGadget
2019-06-06 14:15 ` [PATCH v4 01/14] commit-graph: document commit-graph chains Derrick Stolee via GitGitGadget
2019-06-06 14:15 ` [PATCH v4 02/14] commit-graph: prepare for " Derrick Stolee via GitGitGadget
2019-06-06 15:19 ` Philip Oakley
2019-06-06 21:28 ` Junio C Hamano
2019-06-07 12:44 ` Derrick Stolee
2019-06-06 14:15 ` [PATCH v4 03/14] commit-graph: rename commit_compare to oid_compare Derrick Stolee via GitGitGadget
2019-06-06 14:15 ` [PATCH v4 04/14] commit-graph: load commit-graph chains Derrick Stolee via GitGitGadget
2019-06-06 22:20 ` Junio C Hamano
2019-06-07 12:53 ` Derrick Stolee
2019-06-06 14:15 ` [PATCH v4 05/14] commit-graph: add base graphs chunk Derrick Stolee via GitGitGadget
2019-06-07 18:15 ` Junio C Hamano
2019-06-06 14:15 ` [PATCH v4 06/14] commit-graph: rearrange chunk count logic Derrick Stolee via GitGitGadget
2019-06-07 18:23 ` Junio C Hamano
2019-06-06 14:15 ` [PATCH v4 08/14] commit-graph: add --split option to builtin Derrick Stolee via GitGitGadget
2019-06-07 21:57 ` Junio C Hamano
2019-06-11 12:51 ` Derrick Stolee
2019-06-11 19:45 ` Junio C Hamano
2019-06-06 14:15 ` [PATCH v4 07/14] commit-graph: write commit-graph chains Derrick Stolee via GitGitGadget
2019-06-06 14:15 ` [PATCH v4 09/14] commit-graph: merge " Derrick Stolee via GitGitGadget
2019-06-06 14:15 ` [PATCH v4 10/14] commit-graph: allow cross-alternate chains Derrick Stolee via GitGitGadget
2019-06-06 17:00 ` Philip Oakley
2019-06-06 14:15 ` [PATCH v4 11/14] commit-graph: expire commit-graph files Derrick Stolee via GitGitGadget
2019-06-06 14:15 ` [PATCH v4 12/14] commit-graph: create options for split files Derrick Stolee via GitGitGadget
2019-06-06 18:41 ` Ramsay Jones
2019-06-06 14:15 ` [PATCH v4 13/14] commit-graph: verify chains with --shallow mode Derrick Stolee via GitGitGadget
2019-06-06 14:15 ` [PATCH v4 14/14] commit-graph: clean up chains after flattened write Derrick Stolee via GitGitGadget
2019-06-06 16:57 ` [PATCH v4 00/14] Commit-graph: Write incremental files Junio C Hamano
2019-06-07 12:37 ` Derrick Stolee
2019-06-07 18:38 ` [PATCH v5 00/16] " Derrick Stolee via GitGitGadget
2019-06-07 18:38 ` [PATCH v5 01/16] commit-graph: document commit-graph chains Derrick Stolee via GitGitGadget
2019-06-07 18:38 ` [PATCH v5 02/16] commit-graph: prepare for " Derrick Stolee via GitGitGadget
2019-06-07 18:38 ` [PATCH v5 04/16] commit-graph: load " Derrick Stolee via GitGitGadget
2019-06-10 21:47 ` Junio C Hamano
2019-06-10 23:41 ` Derrick Stolee
2019-06-07 18:38 ` [PATCH v5 03/16] commit-graph: rename commit_compare to oid_compare Derrick Stolee via GitGitGadget
2019-06-07 18:38 ` [PATCH v5 05/16] commit-graph: add base graphs chunk Derrick Stolee via GitGitGadget
2019-06-07 18:38 ` [PATCH v5 06/16] commit-graph: rearrange chunk count logic Derrick Stolee via GitGitGadget
2019-06-07 18:38 ` [PATCH v5 07/16] commit-graph: write commit-graph chains Derrick Stolee via GitGitGadget
2019-06-07 18:38 ` [PATCH v5 08/16] commit-graph: add --split option to builtin Derrick Stolee via GitGitGadget
2019-06-07 18:38 ` [PATCH v5 09/16] commit-graph: merge commit-graph chains Derrick Stolee via GitGitGadget
2019-06-07 18:38 ` [PATCH v5 10/16] commit-graph: allow cross-alternate chains Derrick Stolee via GitGitGadget
2019-06-07 18:38 ` [PATCH v5 11/16] commit-graph: expire commit-graph files Derrick Stolee via GitGitGadget
2019-06-07 18:38 ` [PATCH v5 12/16] commit-graph: create options for split files Derrick Stolee via GitGitGadget
2019-06-07 18:38 ` [PATCH v5 13/16] commit-graph: verify chains with --shallow mode Derrick Stolee via GitGitGadget
2019-06-07 18:38 ` [PATCH v5 14/16] commit-graph: clean up chains after flattened write Derrick Stolee via GitGitGadget
2019-06-07 18:38 ` [PATCH v5 15/16] commit-graph: test octopus merges with --split Derrick Stolee via GitGitGadget
2019-06-07 18:38 ` [PATCH v5 16/16] commit-graph: test --split across alternate without --split Derrick Stolee via GitGitGadget
2019-06-17 15:02 ` [PATCH] commit-graph: normalize commit-graph filenames Derrick Stolee
2019-06-17 15:07 ` Derrick Stolee
2019-06-17 18:07 ` [PATCH v2] " Derrick Stolee
2019-06-18 18:14 ` [PATCH v6 00/18] Commit-graph: Write incremental files Derrick Stolee via GitGitGadget
2019-06-18 18:14 ` [PATCH v6 01/18] commit-graph: document commit-graph chains Derrick Stolee via GitGitGadget
2019-06-18 18:14 ` [PATCH v6 02/18] commit-graph: prepare for " Derrick Stolee via GitGitGadget
2019-06-18 18:14 ` [PATCH v6 03/18] commit-graph: rename commit_compare to oid_compare Derrick Stolee via GitGitGadget
2019-06-18 18:14 ` [PATCH v6 04/18] commit-graph: load commit-graph chains Derrick Stolee via GitGitGadget
2019-06-18 18:14 ` [PATCH v6 05/18] commit-graph: add base graphs chunk Derrick Stolee via GitGitGadget
2019-06-18 18:14 ` [PATCH v6 07/18] commit-graph: write commit-graph chains Derrick Stolee via GitGitGadget
2019-06-18 18:14 ` [PATCH v6 06/18] commit-graph: rearrange chunk count logic Derrick Stolee via GitGitGadget
2019-06-18 18:14 ` [PATCH v6 08/18] commit-graph: add --split option to builtin Derrick Stolee via GitGitGadget
2019-06-18 18:14 ` [PATCH v6 09/18] commit-graph: merge commit-graph chains Derrick Stolee via GitGitGadget
2019-06-18 18:14 ` [PATCH v6 10/18] commit-graph: allow cross-alternate chains Derrick Stolee via GitGitGadget
2019-06-18 18:14 ` [PATCH v6 11/18] commit-graph: expire commit-graph files Derrick Stolee via GitGitGadget
2019-06-18 18:14 ` [PATCH v6 12/18] commit-graph: create options for split files Derrick Stolee via GitGitGadget
2019-06-18 18:14 ` [PATCH v6 13/18] commit-graph: verify chains with --shallow mode Derrick Stolee via GitGitGadget
2019-06-18 18:14 ` [PATCH v6 14/18] commit-graph: clean up chains after flattened write Derrick Stolee via GitGitGadget
2019-06-18 18:14 ` [PATCH v6 15/18] commit-graph: test octopus merges with --split Derrick Stolee via GitGitGadget
2019-06-18 18:14 ` [PATCH v6 16/18] commit-graph: test --split across alternate without --split Derrick Stolee via GitGitGadget
2019-06-18 18:14 ` [PATCH v6 17/18] commit-graph: normalize commit-graph filenames Derrick Stolee via GitGitGadget
2019-06-18 18:14 ` [PATCH v6 18/18] commit-graph: test verify across alternates Derrick Stolee via GitGitGadget
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