Add Scala versions (#117)

.github/renovate.json

@@ -0,0 +1,12 @@
+{
+  "automerge": true,
+  "labels": ["type: dependencies"],
+  "packageRules": [
+    {
+      "matchManagers": [
+        "sbt"
+      ],
+      "enabled": false
+    }
+  ]
+}

.github/workflows/auto-approve.yml

@@ -5,7 +5,7 @@ on:
 
 jobs:
   auto-approve:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
       - uses: hmarr/[email protected]
         if: github.actor == 'scala-steward'

.github/workflows/ci.yml

@@ -3,7 +3,7 @@ on:
   pull_request:
 jobs:
   ci:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     strategy:
       fail-fast: false
     steps:

.github/workflows/dependabot-auto-merge.yml

@@ -5,7 +5,7 @@ on:
 
 jobs:
   dependabot-auto-merge:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
       - uses: ahmadnassri/[email protected]
         with:

.github/workflows/release-drafter.yml

@@ -7,7 +7,7 @@ on:
 
 jobs:
   update_release_draft:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
       - uses: release-drafter/[email protected]
         env:

.github/workflows/release.yml

@@ -6,7 +6,7 @@ on:
     types: [ published ]
 jobs:
   release:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
     - uses: actions/[email protected]
       with:

.mergify.yml

@@ -7,6 +7,13 @@ pull_request_rules:
         users: [sideeffffect]
       label:
         add: ["type: dependencies"]
+  - name: label scala-steward's breaking PRs
+    conditions:
+      - author=scala-steward
+      - "body~=(labels: library-update, semver-major)|(labels: sbt-plugin-update, semver-major)"
+    actions:
+      label:
+        add: ["type: breaking"]
   - name: merge Scala Steward's PRs
     conditions:
       - base=master
@@ -15,8 +22,6 @@ pull_request_rules:
     actions:
       merge:
         method: squash
-      delete_head_branch:
-        force: true
   - name: automatic merge on CI success and review
     conditions:
       - base=master
@@ -27,8 +32,6 @@ pull_request_rules:
     actions:
       merge:
         method: squash
-      delete_head_branch:
-        force: true
   - name: automatic merge for master when CI passes
     conditions:
       - base=master
@@ -37,8 +40,6 @@ pull_request_rules:
     actions:
       merge:
         method: squash
-      delete_head_branch:
-        force: true
   - name: automatic update for PR marked mergify-update
     conditions:
       - -conflict # skip PRs with conflicts

.scalafix.conf

@@ -1,24 +1,16 @@
 rules = [
-  OrganizeImports
-  RemoveUnused
-  NoAutoTupling
-  LeakingImplicitClassVal
-  NoValInForComprehension
-  ProcedureSyntax
+  Disable
   DisableSyntax
   ExplicitResultTypes
-  Disable
+  LeakingImplicitClassVal
   MissingFinal
+  NoAutoTupling
+  NoValInForComprehension
+  OrganizeImports
+  ProcedureSyntax
+  RemoveUnused
 ]
 
-OrganizeImports {
-  groupedImports = Merge
-}
-
-RemoveUnused {
-  imports = false // handled by OrganizeImports
-}
-
 Disable {
   ifSynthetic = [
     "java/io/Serializable"
@@ -44,3 +36,11 @@ DisableSyntax {
   noWhileLoops = true
   noXml = true
 }
+
+OrganizeImports {
+  groupedImports = Merge
+}
+
+RemoveUnused {
+  imports = false // handled by OrganizeImports
+}

src/main/scala/com/github/sideeffffect/sbtdecentscala/DecentScalaPlugin.scala

@@ -27,8 +27,13 @@ object DecentScalaPlugin extends AutoPlugin {
   }
 
   trait DecentScala {
+    lazy val decentScalaVersion211 = "2.11.12"
+    lazy val decentScalaVersion212 = "2.12.13"
+    lazy val decentScalaVersion213 = "2.13.5"
     lazy val decentScalaSettings: List[Def.Setting[_]] =
       List(
+        scalaVersion := decentScalaVersion213,
+        crossScalaVersions := Seq(decentScalaVersion211, decentScalaVersion212, decentScalaVersion213),
         libraryDependencies ++= List(
           compilerPlugin(Dependencies.betterMonadicFor),
           compilerPlugin(Dependencies.kindProjector),