Make releasing a git-linear process

- Git tag releases
- Amend README and Changelog for the release
- Prepare the next developement phase

CHANGELOG.txt

@@ -1,9 +1,10 @@
-NEXT RELEASE (Change that when releasing)
+*IN-DEVELOPEMENT*
 ----------------
 Make licence explicit: it is GPLv3 as per the conditions of the source
     code dump from Epsitec.
 Fix URL of colobot repository.
 Render README for Markdown.
+Ease git-based releasing.
 
 ----------------
 2012-10-05

README.md

@@ -1,6 +1,6 @@
 # Colobot Data Files
 
-## Development Release [[[date]]]
+## *IN-DEVELOPEMENT* Release
 
 This package contains the data files for the Colobot project (https://github.com/colobot/colobot).
 It includes (or will include):

make-package.sh

@@ -1,31 +0,0 @@
-#!/bin/bash
-
-# Bash script to create a zipped package labeled with current date
-
-# Get current date (UTC)
-date=`date -u '+%Y-%m-%d'`
-# Name of directory in zip
-dir_name="colobot-data-$date"
-# Name of zip
-zip_name="$dir_name.zip"
-
-# git branches
-current_branch=$(git rev-parse --abbrev-ref HEAD)
-release_branch=${current_branch}_release_$date
-
-# Create new branch for the date substitution
-git checkout -b $release_branch >/dev/null 2>&1
-# Prepare the release where needed
-sed -i 's/\[\[\[date\]\]\]/'"$date"'/' README.txt
-
-# Commit the changes
-git commit README.txt -m "colobot-data $date release" >/dev/null
-
-# Create the zipfile
-echo -n "Creating package $zip_name …"
-git archive --prefix=$dir_name/ --format=zip $release_branch > ../$dir_name.zip
-echo " done!"
-
-# Cleanup our trails
-git checkout $current_branch >/dev/null 2>&1
-git branch -D $release_branch >/dev/null

release.sh

@@ -0,0 +1,41 @@
+#!/bin/bash
+
+# Bash script to create a zipped package labeled with current date
+
+# Get current date (UTC)
+version=`date -u '+%Y-%m-%d'`
+# Full archive name
+git_release_tag=colobot-data-$version
+# Name of archive
+archive_name="$git_release_tag.zip"
+
+echo -n "Preparing the $version release …"
+  # Prepare the release where needed
+  for f in README.md CHANGELOG.txt; do
+    sed -i 's/\*IN-DEVELOPEMENT\*/'"$version"'/' $f
+    git add $f
+  done
+
+  # Commit the changes
+  git commit -m "colobot-data $version release" >/dev/null
+  git tag -m "colobot-data $version release" $git_release_tag
+echo " done!"
+
+# Create the zipfile
+echo -n "Creating package $archive_name …"
+  git archive --prefix=$git_release_tag/ --format=zip $git_release_tag > ../$archive_name
+echo " done!"
+
+echo -n "Post-release cleanup …"
+# Cleanup our trails
+git checkout HEAD^ README.md >/dev/null 2>&1
+mv CHANGELOG.txt CHANGELOG-TAIL.txt
+echo "*IN-DEVELOPEMENT*
+----------
+" > CHANGELOG.txt
+cat CHANGELOG-TAIL.txt >> CHANGELOG.txt
+rm CHANGELOG-TAIL.txt
+git add CHANGELOG.txt
+
+git commit -m "Post-release preparations" > /dev/null
+echo " done!"