Honor extractor's umask in git-tar-tree.

From: Junio C Hamano <junkio@cox.net>
Date: Oct 1, 2005, 19:07 UTC
Message-ID: <7vk6gx3vkt.fsf_-_@assigned-by-dhcp.cox.net>
In-Reply-To: <7vr7b53y0n.fsf@assigned-by-dhcp.cox.net>

The archive generated with git-tar-tree had 0755 and 0644 mode bits. This inconvenienced the extractor with umask 002 by robbing g+w bit unconditionally. Just write it out with loose permissions bits and let the umask of the extractor do its job.

Signed-off-by: Junio C Hamano <junkio@cox.net>
---
Junio C Hamano <junkio@cox.net> writes:

Show 9 quoted lines

> Unrelated to the topic at hand, but related to the mode bits --
> tar-tree generates archives with 0644/0755 permission bits.  It
> might not be a bad idea to just let the tar command honor umask
> of the extracter, by storing 0666 and 0777 in the archive.
>
> I always work in an environment where umask 002 is the norm, and
> get irritated when upstream tarballs of other peoples' projects
> create directories with mode 0755, making me do chmod 2775 on
> them.

diff --git a/tar-tree.c b/tar-tree.c
--- a/tar-tree.c
+++ b/tar-tree.c
@@ -353,6 +353,7 @@ static void traverse_tree(void *buffer, 
 
 		if (size < namelen + 20 || sscanf(buffer, "%o", &mode) != 1)
 			die("corrupt 'tree' file");
+		mode |= (mode & 0100) ? 0777 : 0666;
 		buffer = sha1 + 20;
 		size -= namelen + 20;