Serve Woodpecker pipeline configs from the engine (/build/config)

2026-08-06 01:14:22 +02:00
parent b64c82aa13
commit 1c7498ca4a
15 changed files with 1232 additions and 0 deletions
@@ -0,0 +1,83 @@
+module WarpEngine
+  module Build
+    # Woodpecker configuration-extension endpoint: a CI-szerver pipeline-indításkor
+    # POST-olja a repo marker-fájlját, és a platformhoz tartozó teljes pipeline
+    # YAML-t kapja vissza. A GET ugyanazt rendereli previewként.
+    class ConfigsController < ApiController
+      resource_description do
+        short "Woodpecker CI pipeline configs"
+      end
+
+      api :GET, "/build/config", "Preview the generated pipeline config for a platform"
+      param :platform, String, required: true, desc: "Platform (a configured ci_platforms key, e.g. tic80)"
+      param :name, String, required: false, desc: "Software name substituted into the pipeline (default: example)"
+      returns code: 200, desc: "Pipeline YAML (text/yaml)"
+      error code: 404, desc: "Unknown platform"
+      def show
+        yaml = render_config(platform: params[:platform], name: params[:name].presence || "example")
+        return render json: { error: "Unknown platform" }, status: :not_found if yaml.nil?
+
+        render plain: yaml, content_type: "text/yaml"
+      end
+
+      api :POST, "/build/config", "Woodpecker configuration extension endpoint"
+      description <<~DESC
+        Called by the Woodpecker server on every pipeline start (httpsig-signed request).
+        If the repo's .woodpecker.yaml is a marker (has a `platform:` key), responds with
+        the generated pipeline; otherwise responds 204 so the repo's own config runs.
+      DESC
+      returns code: 200, desc: %(JSON: {"configs": [{"name": ..., "data": "<pipeline YAML>"}]})
+      returns code: 204, desc: "Not a marker config — keep the repo's own configuration"
+      error code: 403, desc: "Missing or invalid request signature"
+      error code: 422, desc: "Marker requests an unknown platform"
+      def create
+        unless WarpEngine::CiSignatureVerifier.new(request).valid?
+          return render json: { error: "Invalid signature" }, status: :forbidden
+        end
+
+        marker = find_marker
+        return head :no_content if marker.nil?
+
+        platform = marker["platform"].to_s
+        name     = marker["name"].presence || repo_name
+        yaml     = render_config(platform: platform, name: name)
+        if yaml.nil?
+          return render json: { error: "Unknown platform: #{platform}" }, status: :unprocessable_entity
+        end
+
+        render json: { configs: [ { name: platform, data: yaml } ] }
+      end
+
+      private
+
+      def render_config(platform:, name:)
+        WarpEngine::CiConfigService.new.render(
+          platform:      platform,
+          name:          name,
+          update_server: WarpEngine.config.ci_update_server.presence || request.base_url
+        )
+      end
+
+      # Az első beküldött config, ami markernek parse-olható (Hash `platform` kulccsal).
+      # A doksi szerint a kulcs "configuration", az example-config-service "configs"-ot
+      # használ — mindkettőt elfogadjuk.
+      def find_marker
+        configs = params[:configuration].presence || params[:configs].presence || []
+        configs.each do |config|
+          data = config[:data].to_s
+          parsed = begin
+            YAML.safe_load(data)
+          rescue Psych::Exception
+            nil
+          end
+          return parsed if parsed.is_a?(Hash) && parsed.key?("platform")
+        end
+        nil
+      end
+
+      def repo_name
+        params.dig(:repo, :name).to_s
+      end
+    end
+  end
+end