Add release script and instructions

README.md

@@ -64,6 +64,7 @@ JSKOS Server implements the JSKOS API web service and storage for [JSKOS] data s
 - [Related works](#related-works)
 - [Maintainers](#maintainers)
 - [Contribute](#contribute)
+  - [Publish](#publish)
 - [License](#license)
 
 ## Install
@@ -1798,10 +1799,19 @@ See [cocoda-sdk](https://github.com/gbv/cocoda-sdk) for efforts to provide unifo
 
 ## Contribute
 
-PRs accepted.
+PRs accepted against the `dev` branch.
 
 Small note: If editing the README, please conform to the [standard-readme](https://github.com/RichardLitt/standard-readme) specification.
 
+### Publish
+**For maintainers only**
+
+Never work on the master branch directly. Always make changes on `dev` and then run the release script:
+
+```bash
+npm run release:patch # or minor or major
+```
+
 ## License
 
 MIT © 2018 Verbundzentrale des GBV (VZG)

package.json

@@ -16,7 +16,11 @@
     "import": "./bin/import.js",
     "import-batch": "func() { tr '\\n' '\\0' < \"$2\"  | xargs -0 -n1 ./bin/import.js $1; }; func",
     "reset": "./bin/reset.js",
-    "upgrade": "./bin/upgrade.js"
+    "upgrade": "./bin/upgrade.js",
+    "release": "git checkout dev && git pull && npm test && npm version $SEMVER && git push && git checkout master && git merge dev && git push --follow-tags && git checkout dev",
+    "release:patch": "SEMVER=patch npm run release",
+    "release:minor": "SEMVER=minor npm run release",
+    "release:major": "SEMVER=major npm run release"
   },
   "lint-staged": {
     "**/*.js": [