quick and dirty (emphasis on dirty) debian changelog generator for SoftEtherVPN

debian/dch-generate.sh

@@ -0,0 +1,63 @@
+#!/bin/bash
+# use: ./debian/dch-generate.sh > ./debian/changelog
+# desc: quick and dirty (emphasis on dirty) debian changelog generator for SoftEtherVPN
+#
+# Copyright (c) 2014 Sahal Ansari (github@sahal.info)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# version 2 as published by the Free Software Foundation.
+
+# note: the following file has CRLF line endings (Windows)
+cbuild="../src/CurrentBuild.txt"
+
+# required for debian packaging
+package="softether-vpn"
+status="UNRELEASED"
+# timezone in +hh:mm from GMT
+# assuming the orij. author is in Japan: +9 GMT
+tzone="+09:00"
+# builder name, builder email
+builder="John Q. Sample"
+email="tamade@example.org"
+# static changelog entry
+entry="* See: http://www.softether.org/5-download/history"
+
+# check if ./changelog exists, check if $cbuild exists
+if [ ! -e ./changelog ]; then
+	/bin/echo -ne "Are you in debian/? I can't find: ./changelog\n"
+	exit 1
+fi
+
+if [ ! -e $cbuild ]; then
+	/bin/echo -ne "This doesn't look like the SoftEtherVPN source tree.  I can't find: src/CurrentBuild.txt\n"
+	exit 1
+fi
+
+# parse version and date -- formatted in RFC 2822 format -- from ../src/CurrentBuild.txt
+while IFS=$'\ ' read -r line_data; do
+	cbuildarray[i]=$(echo "${line_data}"| sed -e s/\\r// -e s/.*\ //)
+	((++i))
+done < $cbuild
+
+#buildnumber="${cbuildarray[0]}"
+#majorversion="${cbuildarray[1]}"
+#releasetype="${cbuildarray[2]}"
+#unparseddate="${cbuildarray[3]}"
+
+# "${cbuildarray[1]}" needs to be converted
+# from "406" to "4.06"
+# this is really ugly and requires GNU awk (afaik)
+version="$(echo "$(echo "${cbuildarray[1]}" | awk '{sub(/[0-9]/,"&.",$0);print $0}' )"".""${cbuildarray[0]}""-""${cbuildarray[2]}")"
+
+# "${cbuildarray[3]}" \needs\ to be converted
+# from "20140321_131655" to "20140321 13:16:55+0900"
+# this is really really ugly and requires GNU date and GNU awk (afaik)
+convertformat="$(echo "$(echo "${cbuildarray[3]}" | sed s/_.*//)"" ""$(echo "${cbuildarray[3]}" | sed s/.*_// | awk '{gsub(/[0-9][0-9]/,"&:",$0);print $0}' | sed s/\:$//)")"
+# now we send $convertformat and $tzone to `date` and have it automagically reformat it for us
+date="$(date -R --date="$(echo "$convertformat""$tzone")")"
+
+# print the new debian changelog
+/bin/echo -ne "$package ($version) $status; urgency=low\n\n  $entry\n\n -- $builder <$email>  $date\n"
+
+exit 0