Releaser directory (#79)

The releaser tool must be located in a dedicated folder and be declared
as a module, for `go run` to pick up on its dependencies.

Author: maxdml

.github/workflows/new-release.yml

@@ -4,7 +4,7 @@ on:
   workflow_dispatch:
     inputs:
       are-you-sure:
-        description: 'Are you sure you want to cut a release? Only "YES!!!" will be accepted'
+        description: 'Are you sure you want to cut a release?  Only "YES!!!" will be accepted'
         required: true
       version:
         description: 'Version number (leave empty to auto-increment)'
@@ -16,7 +16,6 @@ jobs:
     runs-on: ubuntu-latest
     permissions:
       contents: write  # Required for creating tags and branches
-
     steps:
       - name: Checkout code
         uses: actions/checkout@v5
@@ -30,6 +29,7 @@ jobs:
           go-version: '1.22'
 
       - name: Create release
+        working-directory: releaser
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
@@ -45,4 +45,4 @@ jobs:
             FLAGS="$FLAGS -version=${{ inputs.version }}"
           fi
 
-          go run make_release.go -repo=. $FLAGS
+          go run make_release.go -repo=../ $FLAGS

make_release.go renamed to releaser/make_release.go

@@ -295,15 +295,20 @@ func (rm *ReleaseManager) DeleteRemoteTag(version string) error {
 func (rm *ReleaseManager) CreateGitHubRelease(version string) error {
 	ctx := context.Background()
 
+	v, err := semver.NewVersion(version)
+	if err != nil {
+		return fmt.Errorf("failed to parse version for release: %w", err)
+	}
+
 	release := &github.RepositoryRelease{
 		TagName:              github.String(version),
 		TargetCommitish:      github.String("main"),
 		Name:                 github.String(fmt.Sprintf("Release %s", version)),
-		Prerelease:           github.Bool(false),
+		Prerelease:           github.Bool(v.Prerelease() != ""),
 		GenerateReleaseNotes: github.Bool(true),
 	}
 
-	_, _, err := rm.client.Repositories.CreateRelease(
+	_, _, err = rm.client.Repositories.CreateRelease(
 		ctx,
 		rm.githubOwner,
 		rm.githubRepo,