From: Derrick Stolee <stolee@gmail.com>
To: git@vger.kernel.org
Cc: dstolee@microsoft.com, git@jeffhostetler.com, gitster@pobox.com,
peff@peff.net, jonathantanmy@google.com, sbeller@google.com,
szeder.dev@gmail.com
Subject: [PATCH v3 13/14] commit-graph: read only from specific pack-indexes
Date: Thu, 8 Feb 2018 15:37:37 -0500 [thread overview]
Message-ID: <1518122258-157281-14-git-send-email-dstolee@microsoft.com> (raw)
In-Reply-To: <1518122258-157281-1-git-send-email-dstolee@microsoft.com>
Teach git-commit-graph to inspect the objects only in a certain list
of pack-indexes within the given pack directory. This allows updating
the commit graph iteratively, since we add all commits stored in a
previous commit graph.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
---
Documentation/git-commit-graph.txt | 11 +++++++++++
builtin/commit-graph.c | 32 +++++++++++++++++++++++++++++---
commit-graph.c | 25 +++++++++++++++++++++++--
commit-graph.h | 4 +++-
packfile.c | 4 ++--
packfile.h | 2 ++
t/t5318-commit-graph.sh | 13 +++++++++++++
7 files changed, 83 insertions(+), 8 deletions(-)
diff --git a/Documentation/git-commit-graph.txt b/Documentation/git-commit-graph.txt
index 7ae8f7484d..727d5d70bb 100644
--- a/Documentation/git-commit-graph.txt
+++ b/Documentation/git-commit-graph.txt
@@ -42,6 +42,10 @@ With the `--delete-expired` option, delete the graph files in the pack
directory that are not referred to by the graph-head file. To avoid race
conditions, do not delete the file previously referred to by the
graph-head file if it is updated by the `--update-head` option.
++
+With the `--stdin-packs` option, generate the new commit graph by
+walking objects only in the specified packfiles and any commits in
+the existing graph-head.
'read'::
@@ -72,6 +76,13 @@ $ git commit-graph write
$ git commit-graph write --update-head --delete-expired
------------------------------------------------
+* Write a graph file, extending the current graph file using commits
+* in <pack-index>, update graph-head, and delete stale graph files.
++
+------------------------------------------------
+$ echo <pack-index> | git commit-graph write --update-head --delete-expired --stdin-packs
+------------------------------------------------
+
* Read basic information from a graph file.
+
------------------------------------------------
diff --git a/builtin/commit-graph.c b/builtin/commit-graph.c
index 15f647fd81..fe5f00551c 100644
--- a/builtin/commit-graph.c
+++ b/builtin/commit-graph.c
@@ -9,7 +9,7 @@ static char const * const builtin_commit_graph_usage[] = {
N_("git commit-graph [--pack-dir <packdir>]"),
N_("git commit-graph clear [--pack-dir <packdir>]"),
N_("git commit-graph read [--graph-hash=<hash>]"),
- N_("git commit-graph write [--pack-dir <packdir>] [--update-head] [--delete-expired]"),
+ N_("git commit-graph write [--pack-dir <packdir>] [--update-head] [--delete-expired] [--stdin-packs]"),
NULL
};
@@ -24,7 +24,7 @@ static const char * const builtin_commit_graph_read_usage[] = {
};
static const char * const builtin_commit_graph_write_usage[] = {
- N_("git commit-graph write [--pack-dir <packdir>] [--update-head] [--delete-expired]"),
+ N_("git commit-graph write [--pack-dir <packdir>] [--update-head] [--delete-expired] [--stdin-packs]"),
NULL
};
@@ -33,6 +33,7 @@ static struct opts_commit_graph {
const char *graph_hash;
int update_head;
int delete_expired;
+ int stdin_packs;
} opts;
static int graph_clear(int argc, const char **argv)
@@ -216,6 +217,11 @@ static int graph_write(int argc, const char **argv)
struct object_id *graph_hash;
struct object_id old_graph_hash;
int has_existing;
+ const char **pack_indexes = NULL;
+ int nr_packs = 0;
+ const char **lines = NULL;
+ int nr_lines = 0;
+ int alloc_lines = 0;
static struct option builtin_commit_graph_write_options[] = {
{ OPTION_STRING, 'p', "pack-dir", &opts.pack_dir,
@@ -225,6 +231,8 @@ static int graph_write(int argc, const char **argv)
N_("update graph-head to written graph file")),
OPT_BOOL('d', "delete-expired", &opts.delete_expired,
N_("delete expired head graph file")),
+ OPT_BOOL('s', "stdin-packs", &opts.stdin_packs,
+ N_("only scan packfiles listed by stdin")),
OPT_END(),
};
@@ -241,7 +249,25 @@ static int graph_write(int argc, const char **argv)
has_existing = !!get_graph_head_hash(opts.pack_dir, &old_graph_hash);
- graph_hash = write_commit_graph(opts.pack_dir);
+ if (opts.stdin_packs) {
+ struct strbuf buf = STRBUF_INIT;
+ nr_lines = 0;
+ alloc_lines = 128;
+ ALLOC_ARRAY(lines, alloc_lines);
+
+ while (strbuf_getline(&buf, stdin) != EOF) {
+ ALLOC_GROW(lines, nr_lines + 1, alloc_lines);
+ lines[nr_lines++] = buf.buf;
+ strbuf_detach(&buf, NULL);
+ }
+
+ pack_indexes = lines;
+ nr_packs = nr_lines;
+ }
+
+ graph_hash = write_commit_graph(opts.pack_dir,
+ pack_indexes,
+ nr_packs);
if (opts.update_head)
update_head_file(opts.pack_dir, graph_hash);
diff --git a/commit-graph.c b/commit-graph.c
index d711a2cd81..27a34f5eda 100644
--- a/commit-graph.c
+++ b/commit-graph.c
@@ -655,7 +655,9 @@ static void close_reachable(struct packed_oid_list *oids)
}
}
-struct object_id *write_commit_graph(const char *pack_dir)
+struct object_id *write_commit_graph(const char *pack_dir,
+ const char **pack_indexes,
+ int nr_packs)
{
struct packed_oid_list oids;
struct packed_commit_list commits;
@@ -690,7 +692,26 @@ struct object_id *write_commit_graph(const char *pack_dir)
oids.nr = commit_graph->num_commits;
}
- for_each_packed_object(if_packed_commit_add_to_list, &oids, 0);
+ if (pack_indexes) {
+ int pack_dir_len = strlen(pack_dir) + 1;
+ struct strbuf packname = STRBUF_INIT;
+ strbuf_add(&packname, pack_dir, pack_dir_len - 1);
+ strbuf_addch(&packname, '/');
+ for (i = 0; i < nr_packs; i++) {
+ struct packed_git *p;
+ strbuf_setlen(&packname, pack_dir_len);
+ strbuf_addstr(&packname, pack_indexes[i]);
+ p = add_packed_git(packname.buf, packname.len, 1);
+ if (!p)
+ die("error adding pack %s", packname.buf);
+ if (open_pack_index(p))
+ die("error opening index for %s", packname.buf);
+ for_each_object_in_pack(p, if_packed_commit_add_to_list, &oids);
+ close_pack(p);
+ }
+ }
+ else
+ for_each_packed_object(if_packed_commit_add_to_list, &oids, 0);
close_reachable(&oids);
QSORT(oids.list, oids.nr, commit_compare);
diff --git a/commit-graph.h b/commit-graph.h
index 7c4c9c38ab..918b34dd2b 100644
--- a/commit-graph.h
+++ b/commit-graph.h
@@ -50,7 +50,9 @@ extern struct object_id *get_nth_commit_oid(struct commit_graph *g,
uint32_t n,
struct object_id *oid);
-extern struct object_id *write_commit_graph(const char *pack_dir);
+extern struct object_id *write_commit_graph(const char *pack_dir,
+ const char **pack_indexes,
+ int nr_packs);
#endif
diff --git a/packfile.c b/packfile.c
index 29f5dc2398..e4b1dc02bc 100644
--- a/packfile.c
+++ b/packfile.c
@@ -299,7 +299,7 @@ void close_pack_index(struct packed_git *p)
}
}
-static void close_pack(struct packed_git *p)
+void close_pack(struct packed_git *p)
{
close_pack_windows(p);
close_pack_fd(p);
@@ -1840,7 +1840,7 @@ int has_pack_index(const unsigned char *sha1)
return 1;
}
-static int for_each_object_in_pack(struct packed_git *p, each_packed_object_fn cb, void *data)
+int for_each_object_in_pack(struct packed_git *p, each_packed_object_fn cb, void *data)
{
uint32_t i;
int r = 0;
diff --git a/packfile.h b/packfile.h
index 0cdeb54dcd..9281e909d5 100644
--- a/packfile.h
+++ b/packfile.h
@@ -61,6 +61,7 @@ extern void close_pack_index(struct packed_git *);
extern unsigned char *use_pack(struct packed_git *, struct pack_window **, off_t, unsigned long *);
extern void close_pack_windows(struct packed_git *);
+extern void close_pack(struct packed_git *);
extern void close_all_packs(void);
extern void unuse_pack(struct pack_window **);
extern void clear_delta_base_cache(void);
@@ -133,6 +134,7 @@ typedef int each_packed_object_fn(const struct object_id *oid,
struct packed_git *pack,
uint32_t pos,
void *data);
+extern int for_each_object_in_pack(struct packed_git *p, each_packed_object_fn, void *data);
extern int for_each_packed_object(each_packed_object_fn, void *, unsigned flags);
#endif
diff --git a/t/t5318-commit-graph.sh b/t/t5318-commit-graph.sh
index 1e3fe59d70..e3546e6844 100755
--- a/t/t5318-commit-graph.sh
+++ b/t/t5318-commit-graph.sh
@@ -169,6 +169,19 @@ test_expect_success 'clear graph' '
graph_git_behavior 'cleared graph, commit 8 vs merge 1' commits/8 merge/1
graph_git_behavior 'cleared graph, commit 8 vs merge 2' commits/8 merge/2
+test_expect_success 'build graph from latest pack with closure' '
+ graph5=$(cat new-idx | git commit-graph write --update-head --delete-expired --stdin-packs) &&
+ test_path_is_file $packdir/graph-$graph5.graph &&
+ test_path_is_file $packdir/graph-head &&
+ printf $graph5 >expect &&
+ test_cmp expect $packdir/graph-head &&
+ git commit-graph read --graph-hash=$graph5 >output &&
+ graph_read_expect "9" "$packdir" &&
+ test_cmp expect output'
+
+graph_git_behavior 'graph from pack, commit 8 vs merge 1' commits/8 merge/1
+graph_git_behavior 'graph from pack, commit 8 vs merge 2' commits/8 merge/2
+
test_expect_success 'setup bare repo' '
cd .. &&
git clone --bare --no-local full bare &&
--
2.15.1.45.g9b7079f
next prev parent reply other threads:[~2018-02-08 20:38 UTC|newest]
Thread overview: 146+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-30 21:39 [PATCH v2 00/14] Serialized Git Commit Graph Derrick Stolee
2018-01-30 21:39 ` [PATCH v2 01/14] commit-graph: add format document Derrick Stolee
2018-02-01 21:44 ` Jonathan Tan
2018-01-30 21:39 ` [PATCH v2 02/14] graph: add commit graph design document Derrick Stolee
2018-01-31 2:19 ` Stefan Beller
2018-01-30 21:39 ` [PATCH v2 03/14] commit-graph: create git-commit-graph builtin Derrick Stolee
2018-02-02 0:53 ` SZEDER Gábor
2018-01-30 21:39 ` [PATCH v2 04/14] commit-graph: implement construct_commit_graph() Derrick Stolee
2018-02-01 22:23 ` Jonathan Tan
2018-02-01 23:46 ` SZEDER Gábor
2018-02-02 15:32 ` SZEDER Gábor
2018-02-05 16:06 ` Derrick Stolee
2018-02-07 15:08 ` SZEDER Gábor
2018-02-07 15:10 ` Derrick Stolee
2018-01-30 21:39 ` [PATCH v2 05/14] commit-graph: implement git-commit-graph --write Derrick Stolee
2018-02-01 23:33 ` Jonathan Tan
2018-02-02 18:36 ` Stefan Beller
2018-02-02 22:48 ` Junio C Hamano
2018-02-03 1:58 ` Derrick Stolee
2018-02-03 9:28 ` Jeff King
2018-02-05 18:48 ` Junio C Hamano
2018-02-06 18:55 ` Derrick Stolee
2018-02-01 23:48 ` SZEDER Gábor
2018-02-05 18:07 ` Derrick Stolee
2018-02-02 1:47 ` SZEDER Gábor
2018-01-30 21:39 ` [PATCH v2 06/14] commit-graph: implement git-commit-graph --read Derrick Stolee
2018-01-31 2:22 ` Stefan Beller
2018-02-02 0:02 ` SZEDER Gábor
2018-02-02 0:23 ` Jonathan Tan
2018-02-05 19:29 ` Derrick Stolee
2018-01-30 21:39 ` [PATCH v2 07/14] commit-graph: implement git-commit-graph --update-head Derrick Stolee
2018-02-02 1:35 ` SZEDER Gábor
2018-02-05 21:01 ` Derrick Stolee
2018-02-02 2:45 ` SZEDER Gábor
2018-01-30 21:39 ` [PATCH v2 08/14] commit-graph: implement git-commit-graph --clear Derrick Stolee
2018-02-02 4:01 ` SZEDER Gábor
2018-01-30 21:39 ` [PATCH v2 09/14] commit-graph: teach git-commit-graph --delete-expired Derrick Stolee
2018-02-02 15:04 ` SZEDER Gábor
2018-01-30 21:39 ` [PATCH v2 10/14] commit-graph: add core.commitgraph setting Derrick Stolee
2018-01-31 22:44 ` Igor Djordjevic
2018-02-02 16:01 ` SZEDER Gábor
2018-01-30 21:39 ` [PATCH v2 11/14] commit: integrate commit graph with commit parsing Derrick Stolee
2018-02-02 1:51 ` Jonathan Tan
2018-02-06 14:53 ` Derrick Stolee
2018-01-30 21:39 ` [PATCH v2 12/14] commit-graph: read only from specific pack-indexes Derrick Stolee
2018-01-30 21:39 ` [PATCH v2 13/14] commit-graph: close under reachability Derrick Stolee
2018-01-30 21:39 ` [PATCH v2 14/14] commit-graph: build graph from starting commits Derrick Stolee
2018-01-30 21:47 ` [PATCH v2 00/14] Serialized Git Commit Graph Stefan Beller
2018-02-01 2:34 ` Stefan Beller
2018-02-08 20:37 ` [PATCH v3 " Derrick Stolee
2018-02-08 20:37 ` [PATCH v3 01/14] commit-graph: add format document Derrick Stolee
2018-02-08 21:21 ` Junio C Hamano
2018-02-08 21:33 ` Derrick Stolee
2018-02-08 23:16 ` Junio C Hamano
2018-02-08 20:37 ` [PATCH v3 02/14] graph: add commit graph design document Derrick Stolee
2018-02-08 20:37 ` [PATCH v3 03/14] commit-graph: create git-commit-graph builtin Derrick Stolee
2018-02-08 21:27 ` Junio C Hamano
2018-02-08 21:36 ` Derrick Stolee
2018-02-08 23:21 ` Junio C Hamano
2018-02-08 20:37 ` [PATCH v3 04/14] commit-graph: implement write_commit_graph() Derrick Stolee
2018-02-08 22:14 ` Junio C Hamano
2018-02-15 18:19 ` Junio C Hamano
2018-02-15 18:23 ` Derrick Stolee
2018-02-08 20:37 ` [PATCH v3 05/14] commit-graph: implement 'git-commit-graph write' Derrick Stolee
2018-02-13 21:57 ` Jonathan Tan
2018-02-08 20:37 ` [PATCH v3 06/14] commit-graph: implement 'git-commit-graph read' Derrick Stolee
2018-02-08 23:38 ` Junio C Hamano
2018-02-08 20:37 ` [PATCH v3 07/14] commit-graph: update graph-head during write Derrick Stolee
2018-02-12 18:56 ` Junio C Hamano
2018-02-12 20:37 ` Junio C Hamano
2018-02-12 21:24 ` Derrick Stolee
2018-02-13 22:38 ` Jonathan Tan
2018-02-08 20:37 ` [PATCH v3 08/14] commit-graph: implement 'git-commit-graph clear' Derrick Stolee
2018-02-13 22:49 ` Jonathan Tan
2018-02-08 20:37 ` [PATCH v3 09/14] commit-graph: implement --delete-expired Derrick Stolee
2018-02-08 20:37 ` [PATCH v3 10/14] commit-graph: add core.commitGraph setting Derrick Stolee
2018-02-08 20:37 ` [PATCH v3 11/14] commit: integrate commit graph with commit parsing Derrick Stolee
2018-02-14 0:12 ` Jonathan Tan
2018-02-14 18:08 ` Derrick Stolee
2018-02-15 18:25 ` Junio C Hamano
2018-02-08 20:37 ` [PATCH v3 12/14] commit-graph: close under reachability Derrick Stolee
2018-02-08 20:37 ` Derrick Stolee [this message]
2018-02-08 20:37 ` [PATCH v3 14/14] commit-graph: build graph from starting commits Derrick Stolee
2018-02-09 13:02 ` SZEDER Gábor
2018-02-09 13:45 ` Derrick Stolee
2018-02-14 18:15 ` [PATCH v3 00/14] Serialized Git Commit Graph Derrick Stolee
2018-02-14 18:27 ` Stefan Beller
2018-02-14 19:11 ` Derrick Stolee
2018-02-19 18:53 ` [PATCH v4 00/13] " Derrick Stolee
2018-02-19 18:53 ` [PATCH v4 01/13] commit-graph: add format document Derrick Stolee
2018-02-20 20:49 ` Junio C Hamano
2018-02-21 19:23 ` Stefan Beller
2018-02-21 19:45 ` Derrick Stolee
2018-02-21 19:48 ` Stefan Beller
2018-03-30 13:25 ` Jakub Narebski
2018-04-02 13:09 ` Derrick Stolee
2018-04-02 14:09 ` Jakub Narebski
2018-02-19 18:53 ` [PATCH v4 02/13] graph: add commit graph design document Derrick Stolee
2018-02-20 21:42 ` Junio C Hamano
2018-02-23 15:44 ` Derrick Stolee
2018-02-21 19:34 ` Stefan Beller
2018-02-19 18:53 ` [PATCH v4 03/13] commit-graph: create git-commit-graph builtin Derrick Stolee
2018-02-20 21:51 ` Junio C Hamano
2018-02-21 18:58 ` Junio C Hamano
2018-02-23 16:07 ` Derrick Stolee
2018-02-26 16:25 ` SZEDER Gábor
2018-02-26 17:08 ` Derrick Stolee
2018-02-19 18:53 ` [PATCH v4 04/13] commit-graph: implement write_commit_graph() Derrick Stolee
2018-02-20 22:57 ` Junio C Hamano
2018-02-23 17:23 ` Derrick Stolee
2018-02-23 19:30 ` Junio C Hamano
2018-02-23 19:48 ` Junio C Hamano
2018-02-23 20:02 ` Derrick Stolee
2018-02-26 16:10 ` SZEDER Gábor
2018-02-28 18:47 ` Junio C Hamano
2018-02-19 18:53 ` [PATCH v4 05/13] commit-graph: implement 'git-commit-graph write' Derrick Stolee
2018-02-21 19:25 ` Junio C Hamano
2018-02-19 18:53 ` [PATCH v4 06/13] commit-graph: implement git commit-graph read Derrick Stolee
2018-02-21 20:11 ` Junio C Hamano
2018-02-22 18:25 ` Junio C Hamano
2018-02-19 18:53 ` [PATCH v4 07/13] commit-graph: implement --set-latest Derrick Stolee
2018-02-22 18:31 ` Junio C Hamano
2018-02-23 17:53 ` Derrick Stolee
2018-02-19 18:53 ` [PATCH v4 08/13] commit-graph: implement --delete-expired Derrick Stolee
2018-02-21 21:34 ` Stefan Beller
2018-02-23 17:43 ` Derrick Stolee
2018-02-22 18:48 ` Junio C Hamano
2018-02-23 17:59 ` Derrick Stolee
2018-02-23 19:33 ` Junio C Hamano
2018-02-23 19:41 ` Derrick Stolee
2018-02-23 19:51 ` Junio C Hamano
2018-02-19 18:53 ` [PATCH v4 09/13] commit-graph: add core.commitGraph setting Derrick Stolee
2018-02-19 18:53 ` [PATCH v4 10/13] commit-graph: close under reachability Derrick Stolee
2018-02-19 18:53 ` [PATCH v4 11/13] commit: integrate commit graph with commit parsing Derrick Stolee
2018-02-19 18:53 ` [PATCH v4 12/13] commit-graph: read only from specific pack-indexes Derrick Stolee
2018-02-21 22:25 ` Stefan Beller
2018-02-23 19:19 ` Derrick Stolee
2018-02-19 18:53 ` [PATCH v4 13/13] commit-graph: build graph from starting commits Derrick Stolee
2018-03-30 11:10 ` [PATCH v4 00/13] Serialized Git Commit Graph Jakub Narebski
2018-04-02 13:02 ` Derrick Stolee
2018-04-02 14:46 ` Jakub Narebski
2018-04-02 15:02 ` Derrick Stolee
2018-04-02 17:35 ` Stefan Beller
2018-04-02 17:54 ` Derrick Stolee
2018-04-02 18:02 ` Stefan Beller
2018-04-07 22:37 ` Jakub Narebski
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