everyone should have this

1 files changed, 148 insertions, 0 deletions

diff --git a/scripts/diffsplit b/scripts/diffsplit
new file mode 100755
index 0000000..cff44b6
--- a/dev/null
+++ b/scripts/diffsplit
@@ -0,0 +1,148 @@
+#!/usr/bin/perl -w
+
+# diffsplit - split up unified diffs
+#
+# Copyright (C) 2001-2002  Transmeta Corporation
+#
+# written by Daniel Quinlan <quinlan@transmeta.com>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+$prog = $0;
+$prog =~ s@.*/@@;
+
+use Getopt::Std;
+use vars qw($opt_d $opt_h $opt_q $opt_t);
+
+if (defined($ENV{DIFFSPLIT})) {
+        unshift(@ARGV, $ENV{DIFFSPLIT});
+}
+
+getopts("b:cdho:p:qs:t");
+
+if ($#ARGV < 0) {
+        push(@ARGV, "-");
+}
+
+if ($opt_h) {
+        usage(0);
+}
+if ($opt_c) {
+        $regexp = '^Index:\s+(.*)';
+}
+else {
+        $regexp = '^diff\s+.*\s+(\S+)';
+}
+
+foreach $file (@ARGV) {
+        if (!open(IN, $file)) {
+                warn("$prog: $file: $!\n");
+                next;
+        }
+        $out = '';
+        $name = 'header';
+        $in_header = 0;
+        while(<IN>) {
+                if (/^@@/) {
+                        $in_header = 0;
+                }
+                if ($opt_c) {
+                        s/^([-+][-+][-+]) (\S+)/$1 $name/;
+                }
+                if (/$regexp/ ||
+                    (! $in_header && /^(\-\-\-) (\S+)/ && ($no_name = 1)))
+                {
+                        # save last file
+                        $last = $name;
+                        &close_file($last);
+
+                        $in_header = 1;
+
+                        $name = $1;
+
+                        if ($no_name) {
+                                $no_name = 0;
+                                $out .= $_;
+                                $_ = <IN>;
+                                if (/^\+\+\+ (\S+)/) {
+                                        $name = $1;
+                                }
+                        }
+                }
+                $out .= $_;
+        }
+        &close_file($name);
+        close(IN);
+}
+
+sub close_file {
+        my ($name) = @_;
+        my $orig;
+
+        if ($opt_p) {
+                $name =~ s/^$opt_p//;
+        }
+        if ($opt_b) {
+                $name =~ s/^/$opt_b/;
+        }
+        $orig = $name;
+        if ($out ne '') {
+                if ($opt_d) {
+                        $name =~ s@/[^/]+$@@;
+                }
+                if ($opt_o) {
+                        $name = $opt_o;
+                }
+                if ($opt_s && $name ne "header") {
+                        $name .= $opt_s;
+                }
+                $name =~ s@/@_@g;
+                if (-e $name && ! $seen{$name}) {
+                        die "$prog: \"$name\" already exists, stopping\n";
+                }
+                if (! $opt_q) {
+                        print STDERR "file: $orig -> $name\n";
+                }
+                if (! $opt_t) {
+                        open(OUT, ">> $name");
+                        print OUT $out;
+                        close(OUT);
+                }
+                $seen{$name}++;
+                $out = '';
+        }
+}
+
+sub usage {
+        $status = shift;
+
+        $out = $status ? STDERR : STDOUT;
+        print $out <<EOF;
+usage: $prog [options] [file ...]
+
+Split up unified diffs.  If no files are supplied, operates on standard input.
+
+ -b begin   add begin to the front of each filename
+ -c         input is a CVS diff (splits correctly and fixes diff filenames)
+ -d         split by directory name instead of filename
+ -h         print this help
+ -o file    create a single output file, "-" outputs to stdout (useful with -c)
+ -p prefix  strip prefix from the front of each filename (use / characters)
+ -q         run quietly
+ -s .suf    use suffix .suf on created files (default is no suffix)
+ -t         test run (no writes)
+EOF
+        exit($status);
+}