ci: prepare for automated releases

.github/workflows/release.yml

@@ -0,0 +1,30 @@
+name: Release
+
+on:
+  release:
+    types:
+      - published # reacts to releases and prereleases, but not their drafts
+
+jobs:
+  build-and-release:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - name: "Setup Java 8"
+      uses: actions/setup-java@v3.12.0
+      with:
+        distribution: zulu
+        java-version: 8 # build releases with java 8 for maximum compatibility
+    - name: Setup Clojure
+      uses: DeLaGuardo/setup-clojure@master
+      with:
+        lein: 2.9.4
+    - name: Run tests
+      run: lein do clean, all test, all check
+    - name: Build jar
+      run: lein jar
+    - name: Deploy to Clojars
+      run: lein deploy
+      env:
+        CLOJARS_USER: metosinci
+        CLOJARS_DEPLOY_TOKEN: "${{ secrets.CLOJARS_DEPLOY_TOKEN }}"

project.clj

@@ -11,14 +11,17 @@
                          [cheshire "5.10.0"]
                          [clj-commons/clj-yaml "1.0.27"]
                          [clojure-msgpack "1.2.1" :exclusions [org.clojure/clojure]]]
+  :deploy-repositories [["releases" {:url "https://repo.clojars.org/"
+                                     :sign-releases false
+                                     :username :env/CLOJARS_USER
+                                     :password :env/CLOJARS_DEPLOY_TOKEN}]]
   :source-paths ["modules/muuntaja/src"]
   :plugins [[lein-codox "0.10.7"]]
   :codox {:src-uri "http://github.com/metosin/muuntaja/blob/master/{filepath}#L{line}"
           :output-path "doc"
           :metadata {:doc/format :markdown}}
   :scm {:name "git"
         :url "https://github.com/metosin/muuntaja"}
-  :deploy-repositories [["releases" :clojars]]
   :profiles {:dev {:jvm-opts ^:replace ["-server"]
 
                    ;; all module sources for development