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authorWilly Tarreau <w@1wt.eu>2006-07-20 09:30:44 (GMT)
committerJunio C Hamano <junkio@cox.net>2006-07-24 06:35:13 (GMT)
commitce1a79b6a74b031213d8efd4f72cb0e954e261d5 (patch)
tree923546c64b179474c10d3b083e7b9d041c051c5d /builtin-tar-tree.c
parent1b91abe35079f3d6e6440b9a49766de06f3f1659 (diff)
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tar-tree: add the "tar.umask" config option
By default, git-tar-tree(1) sets file and directories modes to 0666 or 0777. While this is both useful and acceptable for projects such as the Linux Kernel, it might be excessive for other projects. With this variable, it becomes possible to tell git-tar-tree(1) to apply a specific umask to the modes above. The special value "user" indicates that the user's current umask will be used. This should be enough for most projects, as it will lead to the same permissions as git-checkout(1) would use. The default value remains 0, which means world read-write. Signed-off-by: Willy Tarreau <w@1wt.eu> Acked-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <junkio@cox.net>
Diffstat (limited to 'builtin-tar-tree.c')
-rw-r--r--builtin-tar-tree.c21
1 files changed, 18 insertions, 3 deletions
diff --git a/builtin-tar-tree.c b/builtin-tar-tree.c
index f2e48aa..e5aaded 100644
--- a/builtin-tar-tree.c
+++ b/builtin-tar-tree.c
@@ -20,6 +20,7 @@ static char block[BLOCKSIZE];
static unsigned long offset;
static time_t archive_time;
+static int tar_umask;
/* tries hard to write, either succeeds or dies in the attempt */
static void reliable_write(const void *data, unsigned long size)
@@ -188,13 +189,13 @@ static void write_entry(const unsigned char *sha1, struct strbuf *path,
} else {
if (S_ISDIR(mode)) {
*header.typeflag = TYPEFLAG_DIR;
- mode |= 0777;
+ mode = (mode | 0777) & ~tar_umask;
} else if (S_ISLNK(mode)) {
*header.typeflag = TYPEFLAG_LNK;
mode |= 0777;
} else if (S_ISREG(mode)) {
*header.typeflag = TYPEFLAG_REG;
- mode |= (mode & 0100) ? 0777 : 0666;
+ mode = (mode | ((mode & 0100) ? 0777 : 0666)) & ~tar_umask;
} else {
error("unsupported file mode: 0%o (SHA1: %s)",
mode, sha1_to_hex(sha1));
@@ -293,6 +294,20 @@ static void traverse_tree(struct tree_desc *tree, struct strbuf *path)
}
}
+int git_tar_config(const char *var, const char *value)
+{
+ if (!strcmp(var, "tar.umask")) {
+ if (!strcmp(value, "user")) {
+ tar_umask = umask(0);
+ umask(tar_umask);
+ } else {
+ tar_umask = git_config_int(var, value);
+ }
+ return 0;
+ }
+ return git_default_config(var, value);
+}
+
static int generate_tar(int argc, const char **argv, char** envp)
{
unsigned char sha1[20], tree_sha1[20];
@@ -305,7 +320,7 @@ static int generate_tar(int argc, const char **argv, char** envp)
current_path.len = current_path.eof = 0;
setup_git_directory();
- git_config(git_default_config);
+ git_config(git_tar_config);
switch (argc) {
case 3: