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authorJeff King <peff@peff.net>2017-03-16 10:27:12 -0400
committerJunio C Hamano <gitster@pobox.com>2017-03-16 11:17:00 -0700
commiteaeefc3276c45ff8f8c24775b7dd93155bef7d48 (patch)
tree0efbfc9ff756f244375225d3e90383f32aa61b66
parent1cec8c634fb76ecee862ff88066f55b63b7d5ff7 (diff)
downloadgit-eaeefc3276c45ff8f8c24775b7dd93155bef7d48.tar.gz
odb_pack_keep(): stop generating keepfile name
The odb_pack_keep() function generates the name of a .keep file and opens it. This has two problems: 1. It requires a fixed-size buffer to create the filename and doesn't notice when the result is truncated. 2. Of the two callers, one sometimes wants to open a filename it already has, which makes things awkward (it has to do so manually, and skips the leading-directory creation). Instead, let's have odb_pack_keep() just open the file. Generating the name isn't hard, and a future patch will switch callers over to odb_pack_name() anyway. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rw-r--r--builtin/index-pack.c6
-rw-r--r--cache.h8
-rw-r--r--environment.c6
-rw-r--r--fast-import.c4
4 files changed, 12 insertions, 12 deletions
diff --git a/builtin/index-pack.c b/builtin/index-pack.c
index f4b87c6c9f..a58bc6bee4 100644
--- a/builtin/index-pack.c
+++ b/builtin/index-pack.c
@@ -1402,10 +1402,10 @@ static void final(const char *final_pack_name, const char *curr_pack_name,
int keep_fd, keep_msg_len = strlen(keep_msg);
if (!keep_name)
- keep_fd = odb_pack_keep(name, sizeof(name), sha1);
- else
- keep_fd = open(keep_name, O_RDWR|O_CREAT|O_EXCL, 0600);
+ snprintf(name, sizeof(name), "%s/pack/pack-%s.keep",
+ get_object_directory(), sha1_to_hex(sha1));
+ keep_fd = odb_pack_keep(keep_name ? keep_name : name);
if (keep_fd < 0) {
if (errno != EEXIST)
die_errno(_("cannot write keep file '%s'"),
diff --git a/cache.h b/cache.h
index baba4fe541..0c177b7acd 100644
--- a/cache.h
+++ b/cache.h
@@ -1578,11 +1578,11 @@ extern int odb_mkstemp(char *template, size_t limit, const char *pattern);
extern char *odb_pack_name(struct strbuf *buf, const unsigned char *sha1, const char *ext);
/*
- * Create a pack .keep file in the object database's pack directory, for
- * a pack with checksum "sha1". The return value is a file descriptor opened
- * for writing, or -1 on error. The name of the keep file is written to "name".
+ * Create a pack .keep file named "name" (which should generally be the output
+ * of odb_pack_name). Returns a file descriptor opened for writing, or -1 on
+ * error.
*/
-extern int odb_pack_keep(char *name, size_t namesz, const unsigned char *sha1);
+extern int odb_pack_keep(const char *name);
/*
* mmap the index file for the specified packfile (if it is not
diff --git a/environment.c b/environment.c
index c07fb17fb7..4cd20d7067 100644
--- a/environment.c
+++ b/environment.c
@@ -296,18 +296,16 @@ int odb_mkstemp(char *template, size_t limit, const char *pattern)
return xmkstemp_mode(template, mode);
}
-int odb_pack_keep(char *name, size_t namesz, const unsigned char *sha1)
+int odb_pack_keep(const char *name)
{
int fd;
- snprintf(name, namesz, "%s/pack/pack-%s.keep",
- get_object_directory(), sha1_to_hex(sha1));
fd = open(name, O_RDWR|O_CREAT|O_EXCL, 0600);
if (0 <= fd)
return fd;
/* slow path */
- safe_create_leading_directories(name);
+ safe_create_leading_directories_const(name);
return open(name, O_RDWR|O_CREAT|O_EXCL, 0600);
}
diff --git a/fast-import.c b/fast-import.c
index 64fe602f0b..7f8371be3d 100644
--- a/fast-import.c
+++ b/fast-import.c
@@ -944,7 +944,9 @@ static char *keep_pack(const char *curr_index_name)
static const char *keep_msg = "fast-import";
int keep_fd;
- keep_fd = odb_pack_keep(name, sizeof(name), pack_data->sha1);
+ snprintf(name, sizeof(name), "%s/pack/pack-%s.keep",
+ get_object_directory(), sha1_to_hex(pack_data->sha1));
+ keep_fd = odb_pack_keep(name);
if (keep_fd < 0)
die_errno("cannot create keep file");
write_or_die(keep_fd, keep_msg, strlen(keep_msg));