Have github actions automatically push PR autofixes

.github/workflows/run-tests.yml

@@ -25,6 +25,18 @@ concurrency:
 jobs:
   # Jobs are listed in rough order of priority: if multiple jobs fail, the first job
   # in the list should be the one that's most worth looking into
+  autofix:
+    if: github.event_name == 'pull_request'
+    uses: ./.github/workflows/run-mill-action.yml
+    with:
+      java-version: '11'
+      buildcmd: |
+        set -eux;
+        git fetch --unshallow;
+        git commit --allow-empty -am 'Github Actions Autofix; please use "git push -f" next time you push to this PR';
+        git push "[email protected]:${{ github.event.pull_request.head.repo.full_name }}.git" HEAD:${{ github.head_ref }}
+      populate_cache: true
+
   build-linux:
     uses: ./.github/workflows/run-mill-action.yml
     with:

scalalib/src/mill/scalalib/Dependency.scala

@@ -1,40 +1,40 @@
-package mill.scalalib
+    package mill.scalalib
 
-import mill.T
-import mill.define.{Command, Discover, ExternalModule}
-import mill.eval.Evaluator
-import mill.scalalib.dependency.{DependencyUpdatesImpl, Format}
-import mill.scalalib.dependency.updates.ModuleDependenciesUpdates
+    import mill.T
+    import mill.define.{Command, Discover, ExternalModule}
+    import mill.eval.Evaluator
+    import mill.scalalib.dependency.{DependencyUpdatesImpl, Format}
+    import mill.scalalib.dependency.updates.ModuleDependenciesUpdates
 
-object Dependency extends ExternalModule {
+    object Dependency extends ExternalModule {
 
-  /** Calculate possible dependency updates. */
-  def updates(
-      ev: Evaluator,
-      allowPreRelease: Boolean = false
-  ): Command[Seq[ModuleDependenciesUpdates]] =
-    T.command {
-      DependencyUpdatesImpl(
-        ev,
-        implicitly,
-        ev.rootModule,
-        ev.rootModule.millDiscover,
-        allowPreRelease
-      )
-    }
+      /** Calculate possible dependency updates. */
+      def updates(
+          ev: Evaluator,
+          allowPreRelease: Boolean = false
+      ): Command[Seq[ModuleDependenciesUpdates]] =
+        T.command {
+          DependencyUpdatesImpl(
+            ev,
+            implicitly,
+            ev.rootModule,
+            ev.rootModule.millDiscover,
+            allowPreRelease
+          )
+        }
 
-  /** Show possible dependency updates. */
-  def showUpdates(
-      ev: Evaluator,
-      allowPreRelease: Boolean = false,
-      format: Format = Format.PerModule
-  ): Command[Unit] = T.command {
-    DependencyUpdatesImpl.showAllUpdates(updates(ev, allowPreRelease)(), format)
-  }
+      /** Show possible dependency updates. */
+      def showUpdates(
+          ev: Evaluator,
+          allowPreRelease: Boolean = false,
+          format: Format = Format.PerModule
+      ): Command[Unit] = T.command {
+        DependencyUpdatesImpl.showAllUpdates(updates(ev, allowPreRelease)(), format)
+      }
 
-  @deprecated("Use other overload instead", "Mill after 0.11.6")
-  def showUpdates(ev: Evaluator, allowPreRelease: Boolean): Command[Unit] =
-    Dependency.showUpdates(ev, allowPreRelease, Format.PerModule)
+      @deprecated("Use other overload instead", "Mill after 0.11.6")
+      def showUpdates(ev: Evaluator, allowPreRelease: Boolean): Command[Unit] =
+        Dependency.showUpdates(ev, allowPreRelease, Format.PerModule)
 
-  lazy val millDiscover: Discover = Discover[this.type]
-}
+      lazy val millDiscover: Discover = Discover[this.type]
+    }