Andrew's git / gitweb.git /
b4d314808370e7653d8b034ae90ad413226bf560
   1#!/usr/bin/perl
   2#
   3# Copyright 2005, Ryan Anderson <ryan@michonline.com>
   4#
   5# This file is licensed under the GPL v2, or a later version
   6# at the discretion of Linus Torvalds.
   7
   8
   9use warnings;
  10use strict;
  11
  12sub usage($);
  13
  14# Sanity checks:
  15my $GIT_DIR = $ENV{'GIT_DIR'} || ".git";
  16
  17unless ( -d $GIT_DIR && -d $GIT_DIR . "/objects" && 
  18        -d $GIT_DIR . "/objects/00" && -d $GIT_DIR . "/refs") {
  19        usage("Git repository not found.");
  20}
  21
  22usage("") if scalar @ARGV != 2;
  23
  24my ($src,$dst) = @ARGV;
  25
  26unless (-f $src || -l $src || -d $src) {
  27        usage("git rename: bad source '$src'");
  28}
  29
  30if (-e $dst) {
  31        usage("git rename: destinations '$dst' already exists");
  32}
  33
  34my (@allfiles,@srcfiles,@dstfiles);
  35
  36$/ = "\0";
  37open(F,"-|","git-ls-files","-z")
  38        or die "Failed to open pipe from git-ls-files: " . $!;
  39
  40@allfiles = map { chomp; $_; } <F>;
  41close(F);
  42
  43my $safesrc = quotemeta($src);
  44@srcfiles = grep /^$safesrc/, @allfiles;
  45@dstfiles = @srcfiles;
  46s#^$safesrc(/|$)#$dst$1# for @dstfiles;
  47
  48rename($src,$dst)
  49        or die "rename failed: $!";
  50
  51my $rc = system("git-update-cache","--add","--",@dstfiles);
  52die "git-update-cache failed to add new name with code $?\n" if $rc;
  53
  54$rc = system("git-update-cache","--remove","--",@srcfiles);
  55die "git-update-cache failed to remove old name with code $?\n" if $rc;
  56
  57
  58sub usage($) {
  59        my $s = shift;
  60        print $s, "\n" if (length $s != 0);
  61        print <<EOT;
  62$0 <source> <dest>
  63source must exist and be either a file, symlink or directory.
  64dest must NOT exist.
  65
  66Renames source to dest, and updates the git cache to reflect the change.
  67Use "git commit" to make record the change permanently.
  68EOT
  69        exit(1);
  70}