Address CI release issues (#30)

* Delay PR creation to ensure artifact can be found

* Allow CI workflow to test unpublished on main

* Add workflow dispatch to release for debugging

* Allow searching older workflows

* Use PAT in release workflow

.github/workflows/CI.yml

@@ -5,8 +5,6 @@ on:
   push:
     branches:
       - main
-    paths-ignore:
-      - "Artifacts.toml"  # Impending package release. Will trigger via `tags`
     tags: ["*"]
 concurrency:
   # Skip intermediate builds: on all builds except on the "main" branch.
@@ -16,6 +14,7 @@ concurrency:
 jobs:
   unpublished:
     name: Artifact Check
+    if: ${{ github.ref_type != 'tag' }}  # Always try using published artifacts for tags
     runs-on: ubuntu-latest
     outputs:
       key: ${{ steps.key.outputs.key }}
@@ -80,7 +79,7 @@ jobs:
 
           # A valid Artifacts.toml file is required: Pkg.jl issue #2662
           mv Artifacts.toml NewArtifacts.toml
-          git checkout origin/${{ github.base_ref }} -- Artifacts.toml
+          git checkout ${{ github.ref != 'refs/heads/main' && 'origin/main' || 'origin/main^' }} -- Artifacts.toml
 
           artifact_dir="$HOME/.julia/artifacts/${{ needs.unpublished.outputs.content_hash }}"
           mkdir -p "$artifact_dir"

.github/workflows/Release.yaml

@@ -6,6 +6,7 @@ on:
       - main
     paths:
       - "Artifacts.toml"
+  workflow_dispatch: {}
 jobs:
   publish:
     name: Publish
@@ -29,11 +30,12 @@ jobs:
               println(io, "tarball_filename=$tarball_filename")
               println(io, "tag=v$(project.version)")
           end
-      - uses: dawidd6/action-download-artifact@v3
+      - uses: dawidd6/action-download-artifact@v6
         id: action-artifact
         with:
           workflow: Update.yaml
           name: ${{ steps.details.outputs.key }}
+          check_artifacts: true  # Check more than just the latest "Update" workflow
       # As `ncipollo/release-action`'s `artifactErrorsFailBuild` input will still cause a release
       # to be created we'll perform this check to fail earlier.
       - name: Validate artifact retrieved
@@ -49,3 +51,4 @@ jobs:
           body: ${{ steps.build_changelog.outputs.changelog }}
           artifacts: ${{ steps.details.outputs.tarball_filename }}
           artifactErrorsFailBuild: true
+          token: ${{ secrets.TZJDATA_UPDATE_TOKEN }}  # Use PAT to trigger workflows on tag creation

.github/workflows/Update.yaml

@@ -66,6 +66,11 @@ jobs:
         with:
           name: ${{ steps.build.outputs.key }}
           path: ${{ steps.build.outputs.tarball_path }}
+      # We need to introduce a slight delay after we upload the artifact to ensure the CI
+      # checks run for the PR can locate the artifact.
+      - name: Delay PR creation
+        if: ${{ steps.build.outputs.updated == 'true' }}
+        run: sleep 15
       - name: Create Pull Request
         uses: peter-evans/create-pull-request@v5
         if: ${{ steps.build.outputs.updated == 'true' }}