From: Derrick Stolee <stolee@gmail.com>
To: git@vger.kernel.org
Cc: gitster@pobox.com, peff@peff.net, git@jeffhostetler.com,
sbeller@google.com, dstolee@microsoft.com
Subject: [PATCH v2 12/14] commit-graph: read only from specific pack-indexes
Date: Tue, 30 Jan 2018 16:39:41 -0500 [thread overview]
Message-ID: <1517348383-112294-13-git-send-email-dstolee@microsoft.com> (raw)
In-Reply-To: <1517348383-112294-1-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 | 13 +++++++++++++
builtin/commit-graph.c | 25 ++++++++++++++++++++++---
commit-graph.c | 25 +++++++++++++++++++++++--
commit-graph.h | 4 +++-
packfile.c | 4 ++--
packfile.h | 2 ++
t/t5318-commit-graph.sh | 6 ++++--
7 files changed, 69 insertions(+), 10 deletions(-)
diff --git a/Documentation/git-commit-graph.txt b/Documentation/git-commit-graph.txt
index 7b376e9212..d0571cd896 100644
--- a/Documentation/git-commit-graph.txt
+++ b/Documentation/git-commit-graph.txt
@@ -43,6 +43,11 @@ OPTIONS
When used with --write and --update-head, delete the graph file
previously referenced by graph-head.
+--stdin-packs::
+ When used with --write, generate the new graph by walking objects
+ only in the specified packfiles and any commits in the
+ existing graph-head.
+
EXAMPLES
--------
@@ -65,6 +70,14 @@ $ 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 the old graph-<hash>.graph
+* file.
++
+------------------------------------------------
+$ 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 766f09e6fc..80a409e784 100644
--- a/builtin/commit-graph.c
+++ b/builtin/commit-graph.c
@@ -12,7 +12,7 @@ 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
};
@@ -24,6 +24,7 @@ static struct opts_commit_graph {
int write;
int update_head;
int delete_expired;
+ int stdin_packs;
int has_existing;
struct object_id old_graph_hash;
} opts;
@@ -114,7 +115,24 @@ static void update_head_file(const char *pack_dir, const struct object_id *graph
static int graph_write(void)
{
- struct object_id *graph_hash = construct_commit_graph(opts.pack_dir);
+ struct object_id *graph_hash;
+ char **pack_indexes = NULL;
+ int num_packs = 0;
+ int size_packs = 0;
+
+ if (opts.stdin_packs) {
+ struct strbuf buf = STRBUF_INIT;
+ size_packs = 128;
+ ALLOC_ARRAY(pack_indexes, size_packs);
+
+ while (strbuf_getline(&buf, stdin) != EOF) {
+ ALLOC_GROW(pack_indexes, num_packs + 1, size_packs);
+ pack_indexes[num_packs++] = buf.buf;
+ strbuf_detach(&buf, NULL);
+ }
+ }
+
+ graph_hash = construct_commit_graph(opts.pack_dir, pack_indexes, num_packs);
if (opts.update_head)
update_head_file(opts.pack_dir, graph_hash);
@@ -122,7 +140,6 @@ static int graph_write(void)
if (graph_hash)
printf("%s\n", oid_to_hex(graph_hash));
-
if (opts.delete_expired && opts.update_head && opts.has_existing &&
oidcmp(graph_hash, &opts.old_graph_hash)) {
char *old_path = get_commit_graph_filename_hash(opts.pack_dir,
@@ -153,6 +170,8 @@ int cmd_commit_graph(int argc, const char **argv, const char *prefix)
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")),
{ OPTION_STRING, 'H', "graph-hash", &opts.graph_hash,
N_("hash"),
N_("A hash for a specific graph file in the pack-dir."),
diff --git a/commit-graph.c b/commit-graph.c
index fc816533c6..e5a1d9ee8b 100644
--- a/commit-graph.c
+++ b/commit-graph.c
@@ -638,7 +638,9 @@ static int if_packed_commit_add_to_list(const struct object_id *oid,
return 0;
}
-struct object_id *construct_commit_graph(const char *pack_dir)
+struct object_id *construct_commit_graph(const char *pack_dir,
+ char **pack_indexes,
+ int nr_packs)
{
struct packed_oid_list oids;
struct packed_commit_list commits;
@@ -674,7 +676,26 @@ struct object_id *construct_commit_graph(const char *pack_dir)
oids.num = 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);
+ }
QSORT(oids.list, oids.num, commit_compare);
count_distinct = 1;
diff --git a/commit-graph.h b/commit-graph.h
index 05ddbbe165..3ae1eadce0 100644
--- a/commit-graph.h
+++ b/commit-graph.h
@@ -60,6 +60,8 @@ extern struct object_id *get_nth_commit_oid(struct commit_graph *g,
uint32_t n,
struct object_id *oid);
-extern struct object_id *construct_commit_graph(const char *pack_dir);
+extern struct object_id *construct_commit_graph(const char *pack_dir,
+ char **pack_indexes,
+ int nr_packs);
#endif
diff --git a/packfile.c b/packfile.c
index 4a5fe7ab18..48133bd669 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);
@@ -1860,7 +1860,7 @@ 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..cde868feb6 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 cb, 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 93b0d4f51b..b9a73f398c 100755
--- a/t/t5318-commit-graph.sh
+++ b/t/t5318-commit-graph.sh
@@ -137,7 +137,9 @@ test_expect_success 'Add more commits' \
git commit -m "commit $i" &&
git branch commits/$i
done &&
- git repack'
+ ls ${packdir} | grep idx >existing-idx &&
+ git repack &&
+ ls ${packdir} | grep idx | grep -v --file=existing-idx >new-idx'
# Current graph structure:
#
@@ -174,7 +176,7 @@ _graph_git_behavior commits/20 merge/1
_graph_git_behavior commits/20 merge/2
test_expect_success 'write graph with merges' \
- 'graph3=$(git commit-graph --write --update-head --delete-expired) &&
+ 'graph3=$(cat new-idx | git commit-graph --write --update-head --delete-expired --stdin-packs) &&
test_path_is_file ${packdir}/graph-${graph3}.graph &&
test_path_is_missing ${packdir}/graph-${graph2}.graph &&
test_path_is_file ${packdir}/graph-${graph1}.graph &&
--
2.16.0.15.g9c3cf44.dirty
next prev parent reply other threads:[~2018-01-30 21:40 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 ` Derrick Stolee [this message]
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 ` [PATCH v3 13/14] commit-graph: read only from specific pack-indexes Derrick Stolee
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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