This version is more logical, less ugly, and incorporates and as described in the Debian manual.

debian/dch-generate.sh

@@ -8,56 +8,59 @@
 # 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)
+# warning: 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
+# timezone in +hh:mm from UTC (+9 UTC)
 tzone="+09:00"
-# builder name, builder email
-builder="John Q. Sample"
-email="[email protected]"
 # static changelog entry
 entry="* See: http://www.softether.org/5-download/history"
 
+# are you a debian maintainer?
+if [ ! -e "$DEBFULLNAME" ]; then
+	DEBFULLNAME="John Q. Sample"
+fi
+if [ ! -e "$DEBEMAIL" ]; then
+	DEBEMAIL="[email protected]"
+fi
+
 # 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"
+	echo "Am I in debian/? I can't find changelog"
+	echo "Maybe run: touch debian/changelog ?"
 	exit 1
 fi
-
-if [ ! -e $cbuild ]; then
-	/bin/echo -ne "This doesn't look like the SoftEtherVPN source tree.  I can't find: src/CurrentBuild.txt\n"
+if [ ! -e "$cbuild" ]; then
+	echo "This doesn't look like the SoftEtherVPN source tree.  I can't find ""$cbuild"
 	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/.*\ //)
+# version and date info from $cbuild are put into array ${cbuildarray[@]}
+# build "${cbuildarray[0]}", major version "${cbuildarray[1]}",
+# release type "${cbuildarray[2]}", and  date "${cbuildarray[3]}"
+while IFS=$'\r\n' read -r line_data; do
+        cbuildarray[i]="${line_data##*[A-Z]\ }"
 	((++i))
-done < $cbuild
-
-#buildnumber="${cbuildarray[0]}"
-#majorversion="${cbuildarray[1]}"
-#releasetype="${cbuildarray[2]}"
-#unparseddate="${cbuildarray[3]}"
+done < "$cbuild"
 
-# "${cbuildarray[1]}" needs to be converted
-# from "406" to "4.06"
-# this is really ugly and requires GNU awk (afaik)
-version="$(echo "$(echo "${cbuildarray[1]}" | awk '{sub(/[0-9]/,"&.",$0);print $0}' )"".""${cbuildarray[0]}""-""${cbuildarray[2]}")"
+# "${cbuildarray[1]}" is converted from "406" to "4.06" using GNU awk
+majorversion="$(echo "${cbuildarray[1]}" | awk '{sub(/[0-9]/,"&.",$0);print $0}')"
 
-# "${cbuildarray[3]}" \needs\ to be converted
-# from "20140321_131655" to "20140321 13:16:55+0900"
-# this is really really ugly and requires GNU date and GNU awk (afaik)
-convertformat="$(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""$tzone")")"
+# "${cbuildarray[3]}" is split and the second half is converted from
+# from "131655" to "13:16:55" using GNU awk then it's put back together
+# (like humpty dumpty) and sent to GNU date for conversion to UTC
+time="$(echo ${cbuildarray[3]#*_} | awk '{gsub(/[0-9][0-9]/,"&:",$0);print $0}')"
+date="$(date -R --date="$(echo "${cbuildarray[3]%_*}"" ""${time%?}""$tzone")")"
 
 # print the new debian changelog
-/bin/echo -ne "$package ($version) $status; urgency=low\n\n  $entry\n\n -- $builder <$email>  $date\n"
+echo "$package"" (""$majorversion"".""${cbuildarray[0]}""-""${cbuildarray[2]}"") ""$status""; urgency=low"
+echo
+echo "  ""$entry"
+echo
+echo " --"" ""$DEBFULLNAME"" <""$DEBEMAIL"">  ""$date"
+echo
 
 exit 0