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-rw-r--r--builtin-tar-tree.c36
1 files changed, 26 insertions, 10 deletions
diff --git a/builtin-tar-tree.c b/builtin-tar-tree.c
index f2e48aae2..215892b69 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));
@@ -293,19 +294,33 @@ static void traverse_tree(struct tree_desc *tree, struct strbuf *path)
}
}
-static int generate_tar(int argc, const char **argv, char** envp)
+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, const char *prefix)
{
unsigned char sha1[20], tree_sha1[20];
struct commit *commit;
struct tree_desc tree;
struct strbuf current_path;
+ void *buffer;
current_path.buf = xmalloc(PATH_MAX);
current_path.alloc = PATH_MAX;
current_path.len = current_path.eof = 0;
- setup_git_directory();
- git_config(git_default_config);
+ git_config(git_tar_config);
switch (argc) {
case 3:
@@ -327,8 +342,8 @@ static int generate_tar(int argc, const char **argv, char** envp)
} else
archive_time = time(NULL);
- tree.buf = read_object_with_reference(sha1, tree_type, &tree.size,
- tree_sha1);
+ tree.buf = buffer = read_object_with_reference(sha1, tree_type,
+ &tree.size, tree_sha1);
if (!tree.buf)
die("not a reference to a tag, commit or tree object: %s",
sha1_to_hex(sha1));
@@ -337,6 +352,7 @@ static int generate_tar(int argc, const char **argv, char** envp)
write_entry(tree_sha1, &current_path, 040777, NULL, 0);
traverse_tree(&tree, &current_path);
write_trailer();
+ free(buffer);
free(current_path.buf);
return 0;
}
@@ -387,19 +403,19 @@ static int remote_tar(int argc, const char **argv)
return !!ret;
}
-int cmd_tar_tree(int argc, const char **argv, char **envp)
+int cmd_tar_tree(int argc, const char **argv, const char *prefix)
{
if (argc < 2)
usage(tar_tree_usage);
if (!strncmp("--remote=", argv[1], 9))
return remote_tar(argc, argv);
- return generate_tar(argc, argv, envp);
+ return generate_tar(argc, argv, prefix);
}
/* ustar header + extended global header content */
#define HEADERSIZE (2 * RECORDSIZE)
-int cmd_get_tar_commit_id(int argc, const char **argv, char **envp)
+int cmd_get_tar_commit_id(int argc, const char **argv, const char *prefix)
{
char buffer[HEADERSIZE];
struct ustar_header *header = (struct ustar_header *)buffer;