Add write_or_die(), a helper function

diff --git a/Documentation/git-tar-tree.txt b/Documentation/git-tar-tree.txt
index f2675c41933fc4f824f871cc9185a6a1bf010d2b..1e1c7fa856a2b80bb839da805aa57d43f65f968e 100644 (file)
--- a/Documentation/git-tar-tree.txt
+++ b/Documentation/git-tar-tree.txt
@@ -37,7 +37,20 @@ OPTIONS
        Instead of making a tar archive from local repository,
        retrieve a tar archive from a remote repository.
 
-Examples
+CONFIGURATION
+-------------
+By default, file and directories modes are set to 0666 or 0777. It is
+possible to change this by setting the "umask" variable in the
+repository configuration as follows :
+
+[tar]
+        umask = 002    ;# group friendly
+
+The special umask value "user" indicates that the user's current umask
+will be used instead. The default value remains 0, which means world
+readable/writable files and directories.
+
+EXAMPLES
 --------
 git tar-tree HEAD junk | (cd /var/tmp/ && tar xf -)::
 
@@ -58,6 +71,11 @@ git tar-tree --remote=example.com:git.git v1.4.0 >git-1.4.0.tar::
 
        Get a tarball v1.4.0 from example.com.
 
+git tar-tree HEAD:Documentation/ git-docs > git-1.4.0-docs.tar::
+
+       Put everything in the current head's Documentation/ directory
+       into 'git-1.4.0-docs.tar', with the prefix 'git-docs/'.
+
 Author
 ------
 Written by Rene Scharfe.