From: Derrick Stolee <stolee@gmail.com>
To: git@vger.kernel.org
Cc: gitster@pobox.com, peff@peff.net, avarab@gmail.com,
Derrick Stolee <dstolee@microsoft.com>
Subject: [PATCH v2] commit-graph: normalize commit-graph filenames
Date: Mon, 17 Jun 2019 14:07:07 -0400 [thread overview]
Message-ID: <20190617180707.11685-1-dstolee@microsoft.com> (raw)
In-Reply-To: <20190617150207.16849-1-dstolee@microsoft.com>
When writing commit-graph files, we append path data to an
object directory, which may be specified by the user via the
'--object-dir' option. If the user supplies a trailing slash,
or some other alternative path format, the resulting path may
be usable for writing to the correct location. However, when
expiring graph files from the <obj-dir>/info/commit-graphs
directory during a write, we need to compare paths with exact
string matches.
Normalize the commit-graph filenames to avoid ambiguity. This
creates extra allocations, but this is a constant multiple of
the number of commit-graph files, which should be a number in
the single digits.
Further normalize the object directory in the context. Due to
a comparison between g->obj_dir and ctx->obj_dir in
split_graph_merge_strategy(), a trailing slash would prevent
any merging of layers within the same object directory. The
check is there to ensure we do not merge across alternates.
Update the tests to include a case with this trailing slash
problem.
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
---
Sorry for the previously-bad patch. This one I believe to
be a full correction, and also includes a test to ensure
we do not make this mistake again.
Thanks,
-Stolee
commit-graph.c | 36 ++++++++++++++++++++++++++++--------
1 file changed, 28 insertions(+), 8 deletions(-)
diff --git a/commit-graph.c b/commit-graph.c
index 8842f93910..2836a6fc3d 100644
--- a/commit-graph.c
+++ b/commit-graph.c
@@ -43,15 +43,23 @@
char *get_commit_graph_filename(const char *obj_dir)
{
- return xstrfmt("%s/info/commit-graph", obj_dir);
+ char *filename = xstrfmt("%s/info/commit-graph", obj_dir);
+ char *normalized = xmalloc(strlen(filename) + 1);
+ normalize_path_copy(normalized, filename);
+ free(filename);
+ return normalized;
}
static char *get_split_graph_filename(const char *obj_dir,
const char *oid_hex)
{
- return xstrfmt("%s/info/commit-graphs/graph-%s.graph",
- obj_dir,
- oid_hex);
+ char *filename = xstrfmt("%s/info/commit-graphs/graph-%s.graph",
+ obj_dir,
+ oid_hex);
+ char *normalized = xmalloc(strlen(filename) + 1);
+ normalize_path_copy(normalized, filename);
+ free(filename);
+ return normalized;
}
static char *get_chain_filename(const char *obj_dir)
@@ -744,7 +752,7 @@ struct packed_oid_list {
struct write_commit_graph_context {
struct repository *r;
- const char *obj_dir;
+ char *obj_dir;
char *graph_name;
struct packed_oid_list oids;
struct packed_commit_list commits;
@@ -1693,7 +1701,11 @@ static void expire_commit_graphs(struct write_commit_graph_context *ctx)
}
strbuf_addstr(&path, ctx->obj_dir);
- strbuf_addstr(&path, "/info/commit-graphs");
+
+ if (path.buf[path.len - 1] != '/')
+ strbuf_addch(&path, '/');
+
+ strbuf_addstr(&path, "info/commit-graphs");
dir = opendir(path.buf);
if (!dir) {
@@ -1727,7 +1739,6 @@ static void expire_commit_graphs(struct write_commit_graph_context *ctx)
if (!found)
unlink(path.buf);
-
}
}
@@ -1739,6 +1750,7 @@ int write_commit_graph(const char *obj_dir,
{
struct write_commit_graph_context *ctx;
uint32_t i, count_distinct = 0;
+ size_t len;
int res = 0;
if (!commit_graph_compatible(the_repository))
@@ -1746,7 +1758,14 @@ int write_commit_graph(const char *obj_dir,
ctx = xcalloc(1, sizeof(struct write_commit_graph_context));
ctx->r = the_repository;
- ctx->obj_dir = obj_dir;
+
+ /* normalize object dir with no trailing slash */
+ ctx->obj_dir = xmallocz(strlen(obj_dir) + 1);
+ normalize_path_copy(ctx->obj_dir, obj_dir);
+ len = strlen(ctx->obj_dir);
+ if (len && ctx->obj_dir[len - 1] == '/')
+ ctx->obj_dir[len - 1] = 0;
+
ctx->append = flags & COMMIT_GRAPH_APPEND ? 1 : 0;
ctx->report_progress = flags & COMMIT_GRAPH_PROGRESS ? 1 : 0;
ctx->split = flags & COMMIT_GRAPH_SPLIT ? 1 : 0;
@@ -1854,6 +1873,7 @@ int write_commit_graph(const char *obj_dir,
free(ctx->graph_name);
free(ctx->commits.list);
free(ctx->oids.list);
+ free(ctx->obj_dir);
if (ctx->commit_graph_filenames_after) {
for (i = 0; i < ctx->num_commit_graphs_after; i++) {
--
2.22.0.430.g4f3aec613b
next prev parent reply other threads:[~2019-06-17 18:07 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 04/17] commit-graph: remove Future Work section 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 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 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 07/14] commit-graph: write commit-graph chains Derrick Stolee via GitGitGadget
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 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 ` Derrick Stolee [this message]
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 18/18] commit-graph: test verify across alternates Derrick Stolee via GitGitGadget
2019-06-18 18:14 ` [PATCH v6 17/18] commit-graph: normalize commit-graph filenames Derrick Stolee via GitGitGadget
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