From fd7ba0ad86935ec6baf61744b2e950fc669ae48b Mon Sep 17 00:00:00 2001
From: mstsirkin <mstsirkin@0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652>
Date: Tue, 11 Mar 2014 09:14:06 +0000
Subject: getchangelog.pl: script to generate changelog

simply output into text file

uses REVISION history to guess revision range

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

git-svn-id: https://tools.oasis-open.org/version-control/svn/virtio@317 0c8fb4dd-22a2-4bb5-bc14-6c75a5f43652
---
 getchangelog.pl | 109 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 109 insertions(+)
 create mode 100755 getchangelog.pl

diff --git a/getchangelog.pl b/getchangelog.pl
new file mode 100755
index 0000000..e72645e
--- /dev/null
+++ b/getchangelog.pl
@@ -0,0 +1,109 @@
+#!/usr/bin/perl
+
+use strict;
+
+my $rev = undef;
+if ($#ARGV >= 0) {
+	$rev = shift @ARGV;
+} else {
+	open(REV, "git svn log REVISION|") || die;
+	while (<REV>) {
+		next unless (m/^(r[0-9]+)/);
+		#top revision is WD, skip it
+		if (not defined $rev) {
+			$rev = $1;
+			next;
+		} else {
+			$rev = $1;
+			last;
+		}
+	}
+}
+
+die unless $rev =~ m/^r([0-9]+)$/;
+$rev = $1;
+
+sub escapelatex {
+	my $s = shift;
+	$s =~ s/[\\]/\\textbackslash /go;
+	$s =~ s/([&#%{}\$])/\\$1/go;
+	$s =~ s/[~]/\\~{}/go;
+	$s =~ s/(https?:\S*)/\\url{$1}/go;
+	return $s;
+}
+
+#map editors to authors
+my %editors = {};
+$editors{'rusty'} = 'Rusty Russell <rusty@au1.ibm.com>';
+$editors{'hornet'} = 'Pawel Moll <pawel.moll@arm.com>';
+$editors{'cornelia.huck'} = 'Cornelia Huck <cornelia.huck@de.ibm.com>';
+$editors{'mstsirkin'} = 'Michael S. Tsirkin <mst@redhat.com>';
+
+my $cl = "";
+my $signoff = undef;
+my $editor = undef;
+my $date = undef;
+my $r = undef;
+open(LOG, "git svn log *tex|") || die;
+my $line = undef;
+while (<LOG>) {
+	if (m/^------------------------------------------------------------------------$/) {
+		next if ($cl eq "");
+		# act on it
+		my $author;
+		if (defined $signoff) {
+			$author = $signoff;
+		} else {
+			$author = $editors{$editor};
+		}
+		#strip mail info
+		$author =~ s/\s*<.*//;
+		$cl = escapelatex($cl);
+		print "$r & $date & $author & { $cl } \\\\\n";
+		print "\\hline\n";
+
+		$cl = "";
+		$signoff = undef;
+		$editor = undef;
+		$date = undef;
+		$r = undef;
+
+		$line = 0;
+		next;
+	}
+	$line++;
+#r164 | mstsirkin | 2013-12-08 14:30:55 +0200 (Sun, 08 Dec 2013)| 6 lines
+
+	if ($line eq 1) {
+		die unless (m/^r[0-9]/);
+		my @rinfo = split(/\s*\Q|\E\s*/, $_);
+		$r = $rinfo[0];
+
+		die unless $r =~ m/^r([0-9]+)$/;
+		$r = $1;
+		last if ($r <= $rev);
+
+		$editor = $rinfo[1];
+		$date = $rinfo[2];
+		die unless ($date =~ m/^[^(]*\([^,]*,\s*([^)]+)\)\s*$/);
+		$date = $1;
+		next;
+	}
+	next if (m/^$/);
+
+	# First signature is the author: needed?
+	# ignore for now
+	#if (not defined $signoff and m/^Signed-off-by:\s*(.*)/) {
+	#	$signoff = $1;
+	#}
+	# skip signatures
+	next if (m/^\s*[A-Z][A-Za-z-]*-by:/);
+
+
+	# fix bug: wrong date in some commit logs
+	if (/Change accepted on VIRTIO TC Meeting, 3 December 2013/) {
+		$_ = "Change accepted on Virtio TC Meeting Minutes: Feb 25, 2014\n";
+	}
+
+	$cl .= $_;
+}
-- 
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