Include a tag annotation, sign tags

License: MIT
Signed-off-by: Hector Sanjuan <code@hector.link>

.gitignore

@@ -1,3 +1,4 @@
+tag_annotation
 coverage.out
 ipfs-cluster-service/ipfs-cluster-service
 ipfs-cluster-ctl/ipfs-cluster-ctl

release.sh

@@ -12,5 +12,9 @@ fi
 sed -i "s/const Version.*$/const Version = \"$version\"/" version.go
 sed -i "s/const Version.*$/const Version = \"$version\"/" ipfs-cluster-ctl/main.go
 git commit -a -m "Release $version"
-git tag v$version
+lastver=`git tag -l | grep -E 'v[0-9]+\.[0-9]+\.[0-9]+' | tail -n 1`
+echo "Tag for Release ${version}" > tag_annotation
+echo >> tag_annotation
+git log --pretty=oneline ${lastver}..HEAD >> tag_annotation
+git tag -a -s -F tag_annotation v$version
 gx release $version