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[PATCH] Add support for directories to git-rename-script.

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Oh, and in the process, rewrite it in Perl.

Signed-off-by: Ryan Anderson <ryan@michonline.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Ryan Anderson 2005-07-25 01:26:47 -04:00 committed by Junio C Hamano
parent fb6a3d8621
commit d36ac03e45
1 changed files with 68 additions and 5 deletions
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73
git-rename-script
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@ -1,7 +1,70 @@
#!/bin/sh #!/usr/bin/perl
#
# Copyright 2005, Ryan Anderson <ryan@michonline.com>
#
# This file is licensed under the GPL v2, or a later version
# at the discretion of Linus Torvalds.
. git-sh-setup-script || die "Not a git archive"
[ -f "$1" ] || [ -h "$1" ] || die "git rename: bad source" use warnings;
[ -e "$2" ] && die "git rename: destination already exists" use strict;
mv -- "$1" "$2" && git-update-cache --add --remove -- "$1" "$2"
sub usage($);
# Sanity checks:
my $GIT_DIR = $ENV{'GIT_DIR'} || ".git";
unless ( -d $GIT_DIR && -d $GIT_DIR . "/objects" &&
-d $GIT_DIR . "/objects/00" && -d $GIT_DIR . "/refs") {
usage("Git repository not found.");
}
usage("") if scalar @ARGV != 2;
my ($src,$dst) = @ARGV;
unless (-f $src || -l $src || -d $src) {
usage("git rename: bad source '$src'");
}
if (-e $dst) {
usage("git rename: destinations '$dst' already exists");
}
my (@allfiles,@srcfiles,@dstfiles);
$/ = "\0";
open(F,"-|","git-ls-files","-z")
or die "Failed to open pipe from git-ls-files: " . $!;
@allfiles = map { chomp; $_; } <F>;
close(F);
my $safesrc = quotemeta($src);
@srcfiles = grep /^$safesrc/, @allfiles;
@dstfiles = @srcfiles;
s#^$safesrc(/|$)#$dst$1# for @dstfiles;
rename($src,$dst)
or die "rename failed: $!";
my $rc = system("git-update-cache","--add","--",@dstfiles);
die "git-update-cache failed to add new name with code $?\n" if $rc;
$rc = system("git-update-cache","--remove","--",@srcfiles);
die "git-update-cache failed to remove old name with code $?\n" if $rc;
sub usage($) {
my $s = shift;
print $s, "\n" if (length $s != 0);
print <<EOT;
$0 <source> <dest>
source must exist and be either a file, symlink or directory.
dest must NOT exist.
Renames source to dest, and updates the git cache to reflect the change.
Use "git commit" to make record the change permanently.
EOT
exit(1);
}