[PATCH] git-cvsimport-script: add "import only" option

git-cvsimport-script: add "import only" option which tells the script
not to perform a checkout after importing.

This ensures that the working directory and cache remain untouched and
will not create them if they do not exist.

Acked-by: Matthias Urlichs <smurf@smurf.noris.de>
Signed-off-by: Sven Verdoolaege <skimo@kotnet.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Documentation/git-cvsimport-script.txt

@@ -11,7 +11,7 @@ SYNOPSIS
 --------
 'git-cvsimport-script' [ -o <branch-for-HEAD> ] [ -h ] [ -v ]
 			[ -d <CVSROOT> ] [ -p <options-for-cvsps> ]
-			[ -C <GIT_repository> ] [ <CVS_module> ]
+			[ -C <GIT_repository> ] [ -i ] [ <CVS_module> ]
 
 
 DESCRIPTION
@@ -29,6 +29,11 @@ OPTIONS
 	currently, only the :local:, :ext: and :pserver: access methods 
 	are supported.
 
+-i::
+	Import-only: don't perform a checkout after importing.  This option
+	ensures the working directory and cache remain untouched and will
+	not create them if they do not exist.
+
 -o <branch-for-HEAD>::
 	The 'HEAD' branch from CVS is imported to the 'origin' branch within
 	the git repository, as 'HEAD' already has a special meaning for git.

git-cvsimport-script

@@ -28,19 +28,19 @@ use POSIX qw(strftime dup2);
 $SIG{'PIPE'}="IGNORE";
 $ENV{'TZ'}="UTC";
 
-our($opt_h,$opt_o,$opt_v,$opt_d,$opt_p,$opt_C,$opt_z);
+our($opt_h,$opt_o,$opt_v,$opt_d,$opt_p,$opt_C,$opt_z,$opt_i);
 
 sub usage() {
 	print STDERR <<END;
 Usage: ${\basename $0}     # fetch/update GIT from CVS
        [ -o branch-for-HEAD ] [ -h ] [ -v ] [ -d CVSROOT ]
        [ -p opts-for-cvsps ] [ -C GIT_repository ] [ -z fuzz ]
-       [ CVS_module ]
+       [ -i ] [ CVS_module ]
 END
 	exit(1);
 }
 
-getopts("hvo:d:p:C:z:") or usage();
+getopts("hivo:d:p:C:z:") or usage();
 usage if $opt_h;
 
 @ARGV <= 1 or usage();
@@ -723,16 +723,20 @@ if($orig_branch) {
 	print "DONE\n" if $opt_v;
 	system("cp","$git_dir/refs/heads/$opt_o","$git_dir/refs/heads/master")
 		if $forward_master;
-	system('git-read-tree', '-m', '-u', 'CVS2GIT_HEAD', 'HEAD');
-	die "read-tree failed: $?\n" if $?;
+	unless ($opt_i) {
+		system('git-read-tree', '-m', '-u', 'CVS2GIT_HEAD', 'HEAD');
+		die "read-tree failed: $?\n" if $?;
+	}
 } else {
 	$orig_branch = "master";
 	print "DONE; creating $orig_branch branch\n" if $opt_v;
 	system("cp","$git_dir/refs/heads/$opt_o","$git_dir/refs/heads/master")
 		unless -f "$git_dir/refs/heads/master";
 	unlink("$git_dir/HEAD");
 	symlink("refs/heads/$orig_branch","$git_dir/HEAD");
-	system('git checkout');
-	die "checkout failed: $?\n" if $?;
+	unless ($opt_i) {
+		system('git checkout');
+		die "checkout failed: $?\n" if $?;
+	}
 }
 unlink("$git_dir/CVS2GIT_HEAD");