build: package runner provider

.goreleaser.yaml

@@ -23,11 +23,25 @@ builds:
       - arm64
     ldflags:
       - -s -w -X github.com/GoCodeAlone/workflow-plugin-github/internal.Version={{.Version}}
+  - id: github-runner-provider
+    main: ./cmd/github-runner-provider
+    binary: github-runner-provider
+    env:
+      - CGO_ENABLED=0
+      - GOPRIVATE=github.com/GoCodeAlone/*
+    goos:
+      - linux
+      - darwin
+      - windows
+    goarch:
+      - amd64
+      - arm64
 
 archives:
   - id: workflow-plugin-github
-    builds:
+    ids:
       - workflow-plugin-github
+      - github-runner-provider
     name_template: "{{ .ProjectName }}-{{ .Os }}-{{ .Arch }}"
     files:
       - plugin.json

release_packaging_test.go

@@ -0,0 +1,109 @@
+package githubplugin_test
+
+import (
+	"os"
+	"strings"
+	"testing"
+)
+
+func TestReleaseArchiveIncludesGitHubRunnerProvider(t *testing.T) {
+	data, err := os.ReadFile(".goreleaser.yaml")
+	if err != nil {
+		t.Fatalf("read .goreleaser.yaml: %v", err)
+	}
+	text := string(data)
+
+	if !goreleaserBuildIncludes(text, "github-runner-provider", []string{
+		"main: ./cmd/github-runner-provider",
+		"binary: github-runner-provider",
+	}) {
+		t.Fatal("release config must build the versioned github-runner-provider binary")
+	}
+
+	if !goreleaserArchiveIncludesBuild(text, "workflow-plugin-github", "github-runner-provider") {
+		t.Fatal("release archive must include github-runner-provider so wfctl plugin install/fetch can provide it")
+	}
+
+	if _, err := os.Stat("cmd/github-runner-provider/main.go"); err != nil {
+		t.Fatalf("github-runner-provider command must exist: %v", err)
+	}
+}
+
+func TestReleaseArchiveCheckRejectsProviderBuildOutsideArchive(t *testing.T) {
+	config := `
+builds:
+  - id: workflow-plugin-github
+    main: ./cmd/workflow-plugin-github
+  - id: github-runner-provider
+    main: ./cmd/github-runner-provider
+    binary: github-runner-provider
+
+archives:
+  - id: workflow-plugin-github
+    ids:
+      - workflow-plugin-github
+`
+
+	if goreleaserArchiveIncludesBuild(config, "workflow-plugin-github", "github-runner-provider") {
+		t.Fatal("archive check must reject configs that build github-runner-provider without packaging it")
+	}
+}
+
+func goreleaserBuildIncludes(config, id string, required []string) bool {
+	builds := topLevelSection(config, "builds:")
+	build := listItemWithID(builds, id)
+	if build == "" {
+		return false
+	}
+	for _, want := range required {
+		if !strings.Contains(build, want) {
+			return false
+		}
+	}
+	return true
+}
+
+func goreleaserArchiveIncludesBuild(config, archiveID, buildID string) bool {
+	archives := topLevelSection(config, "archives:")
+	archive := listItemWithID(archives, archiveID)
+	return strings.Contains(archive, "ids:") && strings.Contains(archive, "- "+buildID)
+}
+
+func topLevelSection(config, header string) string {
+	lines := strings.Split(config, "\n")
+	for i, line := range lines {
+		if line != header {
+			continue
+		}
+
+		var section []string
+		for _, next := range lines[i+1:] {
+			if next != "" && !strings.HasPrefix(next, " ") && !strings.HasPrefix(next, "\t") {
+				break
+			}
+			section = append(section, next)
+		}
+		return strings.Join(section, "\n")
+	}
+	return ""
+}
+
+func listItemWithID(section, id string) string {
+	lines := strings.Split(section, "\n")
+	marker := "- id: " + id
+	for i, line := range lines {
+		if strings.TrimSpace(line) != marker {
+			continue
+		}
+
+		item := []string{line}
+		for _, next := range lines[i+1:] {
+			if strings.HasPrefix(next, "  - id: ") {
+				break
+			}
+			item = append(item, next)
+		}
+		return strings.Join(item, "\n")
+	}
+	return ""
+}