moved make release to devscripts/release.sh

Makefile

@@ -5,17 +5,7 @@ install: youtube-dl youtube-dl.1 youtube-dl.bash-completion
 	install -m 644 --owner root --group root youtube-dl.1 /usr/local/man/man1
 	install -m 644 --owner root --group root youtube-dl.bash-completion /etc/bash_completion.d/youtube-dl
 
-release:
-	@if [ -z "$$version" ]; then echo 'ERROR: specify version number like this: make release version=1994.09.06'; exit 1; fi
-	@if [ ! -z "`git tag | grep "$$version"`" ]; then echo 'ERROR: version already present'; exit 1; fi
-	@if [ ! -z "`git status --porcelain`" ]; then echo 'ERROR: the working directory is not clean; commit or stash changes'; exit 1; fi
-	@sed -i "s/__version__ = '.*'/__version__ = '$$version'/" youtube_dl/__init__.py
-	make all
-	git add -A
-	git commit -m "release $$version"
-	git tag -m "Release $$version" "$$version"
-
-.PHONY: all install release
+.PHONY: all install
 
 youtube-dl: youtube_dl/*.py
 	zip --quiet --junk-paths youtube-dl youtube_dl/*.py

devscripts/release.sh

@@ -0,0 +1,11 @@
+#! /bin/bash
+
+if [ -z "$1" ]; then echo "ERROR: specify version number like this: $0 1994.09.06"; exit 1; fi
+version="$1"
+if [ ! -z "`git tag | grep "$version"`" ]; then echo 'ERROR: version already present'; exit 1; fi
+if [ ! -z "`git status --porcelain`" ]; then echo 'ERROR: the working directory is not clean; commit or stash changes'; exit 1; fi
+sed -i "s/__version__ = '.*'/__version__ = '$version'/" youtube_dl/__init__.py
+make all
+git add -A
+git commit -m "release $version"
+git tag -m "Release $version" "$version"