add release scripts

scripts/release-version.sh

@@ -0,0 +1,30 @@
+#!/bin/bash
+set -xe
+
+[ -z "$(git status --porcelain)" ] || (echo "dirty working directory" && exit 1)
+
+current_version="$(grep '^version = ' Cargo.toml | head -1 | cut -d '"' -f2)"
+new_version="$1"
+
+if [ -z "$new_version" ]; then
+    echo "New version required as argument"
+    exit 1
+fi
+
+echo ">>> Bumping version"
+sed -i.bak "s/version = \"$current_version\"/version = \"$new_version\"/" Cargo.toml
+rm Cargo.toml.bak
+
+echo ">>> Running tests"
+cargo build
+cargo test
+
+echo ">>> Commit"
+git add Cargo.toml
+git commit -am "version $new_version"
+git tag $new_version
+
+echo ">>> Publish"
+cargo publish
+git push
+git push origin $new_version