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,
johannes.schindelin@gmx.de, Junio C Hamano <gitster@pobox.com>,
Derrick Stolee <dstolee@microsoft.com>
Subject: [PATCH v4 08/14] commit-graph: add --split option to builtin
Date: Thu, 06 Jun 2019 07:15:35 -0700 (PDT) [thread overview]
Message-ID: <c42e683ef644e7d34614eb74156e5a2b31392758.1559830527.git.gitgitgadget@gmail.com> (raw)
In-Reply-To: <pull.184.v4.git.gitgitgadget@gmail.com>
From: Derrick Stolee <dstolee@microsoft.com>
Add a new "--split" option to the 'git commit-graph write' subcommand. This
option allows the optional behavior of writing a commit-graph chain.
The current behavior will add a tip commit-graph containing any commits that
are not in the existing commit-graph or commit-graph chain. Later changes
will allow merging the chain and expiring out-dated files.
Add a new test script (t5323-split-commit-graph.sh) that demonstrates this
behavior.
Helped-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
---
builtin/commit-graph.c | 10 ++-
commit-graph.c | 14 ++--
t/t5323-split-commit-graph.sh | 122 ++++++++++++++++++++++++++++++++++
3 files changed, 138 insertions(+), 8 deletions(-)
create mode 100755 t/t5323-split-commit-graph.sh
diff --git a/builtin/commit-graph.c b/builtin/commit-graph.c
index 828b1a713f..c2c07d3917 100644
--- a/builtin/commit-graph.c
+++ b/builtin/commit-graph.c
@@ -10,7 +10,7 @@ static char const * const builtin_commit_graph_usage[] = {
N_("git commit-graph [--object-dir <objdir>]"),
N_("git commit-graph read [--object-dir <objdir>]"),
N_("git commit-graph verify [--object-dir <objdir>]"),
- N_("git commit-graph write [--object-dir <objdir>] [--append] [--reachable|--stdin-packs|--stdin-commits]"),
+ N_("git commit-graph write [--object-dir <objdir>] [--append|--split] [--reachable|--stdin-packs|--stdin-commits]"),
NULL
};
@@ -25,7 +25,7 @@ static const char * const builtin_commit_graph_read_usage[] = {
};
static const char * const builtin_commit_graph_write_usage[] = {
- N_("git commit-graph write [--object-dir <objdir>] [--append] [--reachable|--stdin-packs|--stdin-commits]"),
+ N_("git commit-graph write [--object-dir <objdir>] [--append|--split] [--reachable|--stdin-packs|--stdin-commits]"),
NULL
};
@@ -35,9 +35,9 @@ static struct opts_commit_graph {
int stdin_packs;
int stdin_commits;
int append;
+ int split;
} opts;
-
static int graph_verify(int argc, const char **argv)
{
struct commit_graph *graph = NULL;
@@ -156,6 +156,8 @@ static int graph_write(int argc, const char **argv)
N_("start walk at commits listed by stdin")),
OPT_BOOL(0, "append", &opts.append,
N_("include all commits already in the commit-graph file")),
+ OPT_BOOL(0, "split", &opts.split,
+ N_("allow writing an incremental commit-graph file")),
OPT_END(),
};
@@ -169,6 +171,8 @@ static int graph_write(int argc, const char **argv)
opts.obj_dir = get_object_directory();
if (opts.append)
flags |= COMMIT_GRAPH_APPEND;
+ if (opts.split)
+ flags |= COMMIT_GRAPH_SPLIT;
read_replace_refs = 0;
diff --git a/commit-graph.c b/commit-graph.c
index 7d3e001479..9b4acc0ac9 100644
--- a/commit-graph.c
+++ b/commit-graph.c
@@ -1465,12 +1465,16 @@ static int write_commit_graph_file(struct write_commit_graph_context *ctx)
}
if (ctx->base_graph_name) {
- result = rename(ctx->base_graph_name,
- ctx->commit_graph_filenames_after[ctx->num_commit_graphs_after - 2]);
+ const char *dest = ctx->commit_graph_filenames_after[
+ ctx->num_commit_graphs_after - 2];
- if (result) {
- error(_("failed to rename base commit-graph file"));
- return -1;
+ if (strcmp(ctx->base_graph_name, dest)) {
+ result = rename(ctx->base_graph_name, dest);
+
+ if (result) {
+ error(_("failed to rename base commit-graph file"));
+ return -1;
+ }
}
} else {
char *graph_name = get_commit_graph_filename(ctx->obj_dir);
diff --git a/t/t5323-split-commit-graph.sh b/t/t5323-split-commit-graph.sh
new file mode 100755
index 0000000000..ccd24bd22b
--- /dev/null
+++ b/t/t5323-split-commit-graph.sh
@@ -0,0 +1,122 @@
+#!/bin/sh
+
+test_description='split commit graph'
+. ./test-lib.sh
+
+GIT_TEST_COMMIT_GRAPH=0
+
+test_expect_success 'setup repo' '
+ git init &&
+ git config core.commitGraph true &&
+ infodir=".git/objects/info" &&
+ graphdir="$infodir/commit-graphs" &&
+ test_oid_init
+'
+
+graph_read_expect() {
+ NUM_BASE=0
+ if test ! -z $2
+ then
+ NUM_BASE=$2
+ fi
+ cat >expect <<- EOF
+ header: 43475048 1 1 3 $NUM_BASE
+ num_commits: $1
+ chunks: oid_fanout oid_lookup commit_metadata
+ EOF
+ git commit-graph read >output &&
+ test_cmp expect output
+}
+
+test_expect_success 'create commits and write commit-graph' '
+ for i in $(test_seq 3)
+ do
+ test_commit $i &&
+ git branch commits/$i || return 1
+ done &&
+ git commit-graph write --reachable &&
+ test_path_is_file $infodir/commit-graph &&
+ graph_read_expect 3
+'
+
+graph_git_two_modes() {
+ git -c core.commitGraph=true $1 >output
+ git -c core.commitGraph=false $1 >expect
+ test_cmp expect output
+}
+
+graph_git_behavior() {
+ MSG=$1
+ BRANCH=$2
+ COMPARE=$3
+ test_expect_success "check normal git operations: $MSG" '
+ graph_git_two_modes "log --oneline $BRANCH" &&
+ graph_git_two_modes "log --topo-order $BRANCH" &&
+ graph_git_two_modes "log --graph $COMPARE..$BRANCH" &&
+ graph_git_two_modes "branch -vv" &&
+ graph_git_two_modes "merge-base -a $BRANCH $COMPARE"
+ '
+}
+
+graph_git_behavior 'graph exists' commits/3 commits/1
+
+verify_chain_files_exist() {
+ for hash in $(cat $1/commit-graph-chain)
+ do
+ test_path_is_file $1/graph-$hash.graph || return 1
+ done
+}
+
+test_expect_success 'add more commits, and write a new base graph' '
+ git reset --hard commits/1 &&
+ for i in $(test_seq 4 5)
+ do
+ test_commit $i &&
+ git branch commits/$i || return 1
+ done &&
+ git reset --hard commits/2 &&
+ for i in $(test_seq 6 10)
+ do
+ test_commit $i &&
+ git branch commits/$i || return 1
+ done &&
+ git reset --hard commits/2 &&
+ git merge commits/4 &&
+ git branch merge/1 &&
+ git reset --hard commits/4 &&
+ git merge commits/6 &&
+ git branch merge/2 &&
+ git commit-graph write --reachable &&
+ graph_read_expect 12
+'
+
+test_expect_success 'add three more commits, write a tip graph' '
+ git reset --hard commits/3 &&
+ git merge merge/1 &&
+ git merge commits/5 &&
+ git merge merge/2 &&
+ git branch merge/3 &&
+ git commit-graph write --reachable --split &&
+ test_path_is_missing $infodir/commit-graph &&
+ test_path_is_file $graphdir/commit-graph-chain &&
+ ls $graphdir/graph-*.graph >graph-files &&
+ test_line_count = 2 graph-files &&
+ verify_chain_files_exist $graphdir
+'
+
+graph_git_behavior 'split commit-graph: merge 3 vs 2' merge/3 merge/2
+
+test_expect_success 'add one commit, write a tip graph' '
+ test_commit 11 &&
+ git branch commits/11 &&
+ git commit-graph write --reachable --split &&
+ test_path_is_missing $infodir/commit-graph &&
+ test_path_is_file $graphdir/commit-graph-chain &&
+ ls $graphdir/graph-*.graph >graph-files &&
+ test_line_count = 3 graph-files &&
+ verify_chain_files_exist $graphdir
+'
+
+graph_git_behavior 'three-layer commit-graph: commit 11 vs 6' commits/11 commits/6
+
+test_done
--
gitgitgadget
next prev parent reply other threads:[~2019-06-06 14:15 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 09/17] commit-graph: extract count_distinct_commits() 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 11/17] commit-graph: extract write_commit_graph_file() Derrick Stolee via GitGitGadget
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 06/14] commit-graph: rearrange chunk count logic 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 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 13/14] commit-graph: verify chains with --shallow mode 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 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 07/14] commit-graph: write commit-graph chains Derrick Stolee via GitGitGadget
2019-06-06 14:15 ` Derrick Stolee via GitGitGadget [this message]
2019-06-07 21:57 ` [PATCH v4 08/14] commit-graph: add --split option to builtin 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 09/14] commit-graph: merge commit-graph chains 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 03/16] commit-graph: rename commit_compare to oid_compare Derrick Stolee via GitGitGadget
2019-06-07 18:38 ` [PATCH v5 04/16] commit-graph: load commit-graph chains 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 05/16] commit-graph: add base graphs chunk 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 06/16] commit-graph: rearrange chunk count logic 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 13/16] commit-graph: verify chains with --shallow mode 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 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 03/18] commit-graph: rename commit_compare to oid_compare Derrick Stolee via GitGitGadget
2019-06-18 18:14 ` [PATCH v6 02/18] commit-graph: prepare for commit-graph chains Derrick Stolee via GitGitGadget
2019-06-18 18:14 ` [PATCH v6 04/18] commit-graph: load " 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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