Tweak the publication condition to prevent publishing from forked repos

.github/workflows/ci.yml

@@ -224,17 +224,17 @@ jobs:
         run: pwd
 
       - name: Make target directories
-        if: github.event_name != 'pull_request' && (startsWith(github.ref, 'refs/tags/v') || github.ref == 'refs/heads/main')
+        if: github.event.repository.fork == false && github.event_name != 'pull_request' && (startsWith(github.ref, 'refs/tags/v') || github.ref == 'refs/heads/main')
         shell: bash
         run: mkdir -p github/target github-actions/target kernel/target versioning/target ci-release/target scalafix/target site/target ci-signing/target mergify/target unidoc/target mima/target no-publish/target sonatype/target ci/target sonatype-ci-release/target core/target settings/target project/target
 
       - name: Compress target directories
-        if: github.event_name != 'pull_request' && (startsWith(github.ref, 'refs/tags/v') || github.ref == 'refs/heads/main')
+        if: github.event.repository.fork == false && github.event_name != 'pull_request' && (startsWith(github.ref, 'refs/tags/v') || github.ref == 'refs/heads/main')
         shell: bash
         run: tar cf targets.tar github/target github-actions/target kernel/target versioning/target ci-release/target scalafix/target site/target ci-signing/target mergify/target unidoc/target mima/target no-publish/target sonatype/target ci/target sonatype-ci-release/target core/target settings/target project/target
 
       - name: Upload target directories
-        if: github.event_name != 'pull_request' && (startsWith(github.ref, 'refs/tags/v') || github.ref == 'refs/heads/main')
+        if: github.event.repository.fork == false && github.event_name != 'pull_request' && (startsWith(github.ref, 'refs/tags/v') || github.ref == 'refs/heads/main')
         uses: actions/upload-artifact@v4
         with:
           name: target-${{ matrix.os }}-${{ matrix.java }}-${{ matrix.scala }}-${{ matrix.project }}
@@ -243,7 +243,7 @@ jobs:
   publish:
     name: Publish Artifacts
     needs: [build, validate-steward]
-    if: github.event_name != 'pull_request' && (startsWith(github.ref, 'refs/tags/v') || github.ref == 'refs/heads/main')
+    if: github.event.repository.fork == false && github.event_name != 'pull_request' && (startsWith(github.ref, 'refs/tags/v') || github.ref == 'refs/heads/main')
     strategy:
       matrix:
         os: [ubuntu-22.04]

ci/src/main/scala/org/typelevel/sbt/TypelevelCiPlugin.scala

@@ -23,6 +23,7 @@ import org.typelevel.sbt.gha.GitHubActionsPlugin
 import org.typelevel.sbt.gha.WorkflowStep
 import sbt._
 
+import scala.annotation.nowarn
 import scala.language.experimental.macros
 
 object TypelevelCiPlugin extends AutoPlugin {
@@ -52,6 +53,7 @@ object TypelevelCiPlugin extends AutoPlugin {
     lazy val tlCiStewardValidateConfig = settingKey[Option[File]](
       "The location of the Scala Steward config to validate (default: `.scala-steward.conf`, if exists)")
 
+    @deprecated("Use `githubWorkflowForkCondition` instead", "0.7.8")
     lazy val tlCiForkCondition =
       settingKey[String](
         "Condition for checking on CI whether this project is a fork of another (default: `github.event.repository.fork == false`)")
@@ -60,6 +62,7 @@ object TypelevelCiPlugin extends AutoPlugin {
 
   import autoImport._
 
+  @nowarn("cat=deprecation")
   override def buildSettings = Seq(
     tlCiHeaderCheck := false,
     tlCiScalafmtCheck := false,
@@ -68,7 +71,7 @@ object TypelevelCiPlugin extends AutoPlugin {
     tlCiMimaBinaryIssueCheck := false,
     tlCiDocCheck := false,
     tlCiDependencyGraphJob := true,
-    tlCiForkCondition := "github.event.repository.fork == false",
+    tlCiForkCondition := githubWorkflowForkCondition.value,
     githubWorkflowTargetBranches ++= Seq(
       "!update/**", // ignore steward branches
       "!pr/**" // escape-hatch to disable ci on a branch

docs/gha.md

@@ -80,6 +80,7 @@ Any and all settings which affect the behavior of the generative plugin should b
 - `githubWorkflowEnv` : `Map[String, String]` – An environment which is global to the entire **ci.yml** workflow. Defaults to `Map("GITHUB_TOKEN" -> "${{ secrets.GITHUB_TOKEN }}")` since it's so commonly needed.
 - `githubWorkflowAddedJobs` : `Seq[WorkflowJob]` – A convenience mechanism for adding extra custom jobs to the **ci.yml** workflow (though you can also do this by modifying `githubWorkflowGeneratedCI`). Defaults to empty.
 - `githubWorkflowConcurrency` : `Option[Concurrency]` - Use concurrency to ensure that only a single workflow within the same concurrency group will run at a time. Defaults to `${{ github.workflow }} @ ${{ github.ref }}`.
+- `githubWorkflowForkCondition` : `String` — A condition to determine if this workflow is running on a fork (default: `github.event.repository.fork == false`).
 
 #### `build` Job
 

github-actions/src/main/scala/org/typelevel/sbt/gha/GenerativeKeys.scala

@@ -113,6 +113,9 @@ trait GenerativeKeys {
     s"Permissions to use for the global workflow (default: None)")
   lazy val githubWorkflowAddedJobs = settingKey[Seq[WorkflowJob]](
     "A list of additional jobs to add to the CI workflow (default: [])")
+  lazy val githubWorkflowForkCondition =
+    settingKey[String](
+      "A condition to determine if this workflow is running on a fork (default: `github.event.repository.fork == false`)")
 }
 
 object GenerativeKeys extends GenerativeKeys

github-actions/src/main/scala/org/typelevel/sbt/gha/GenerativePlugin.scala

@@ -658,7 +658,8 @@ ${indent(jobs.map(compileJob(_, sbt)).mkString("\n\n"), 1)}
     githubWorkflowTargetPaths := Paths.None,
     githubWorkflowEnv := Map("GITHUB_TOKEN" -> s"$${{ secrets.GITHUB_TOKEN }}"),
     githubWorkflowPermissions := None,
-    githubWorkflowAddedJobs := Seq()
+    githubWorkflowAddedJobs := Seq(),
+    githubWorkflowForkCondition := "github.event.repository.fork == false"
   )
 
   private lazy val internalTargetAggregation =
@@ -852,6 +853,9 @@ ${indent(jobs.map(compileJob(_, sbt)).mkString("\n\n"), 1)}
   )
 
   private val publicationCond = Def setting {
+    val notPRCond = "github.event_name != 'pull_request'"
+    val forkCond = githubWorkflowForkCondition.value
+
     val publicationCondPre =
       githubWorkflowPublishTargetBranches
         .value
@@ -862,7 +866,8 @@ ${indent(jobs.map(compileJob(_, sbt)).mkString("\n\n"), 1)}
       case Some(cond) => publicationCondPre + " && (" + cond + ")"
       case None => publicationCondPre
     }
-    s"github.event_name != 'pull_request' && $publicationCond"
+
+    s"$forkCond && $notPRCond && $publicationCond"
   }
 
   private val sbt = Def.setting {