[PoC] ZipArchive Adapter: Hack it till you make it

lib/projectPreprocessor.js

@@ -5,6 +5,7 @@ const {promisify} = require("util");
 const readFile = promisify(fs.readFile);
 const jsyaml = require("js-yaml");
 const typeRepository = require("@ui5/builder").types.typeRepository;
+const ZipArchive = require("@ui5/fs").adapters.ZipArchive;
 const {validate} = require("./validation/validator");
 
 class ProjectPreprocessor {
@@ -391,15 +392,32 @@ class ProjectPreprocessor {
 		try {
 			configFile = await readFile(configPath, {encoding: "utf8"});
 		} catch (err) {
-			const errorText = "Failed to read configuration for project " +
-					`${project.id} at "${configPath}". Error: ${err.message}`;
-
-			// Something else than "File or directory does not exist" or root project
-			if (err.code !== "ENOENT" || project._isRoot) {
-				throw new Error(errorText);
+			if (project.path.endsWith(".zip")) {
+				try {
+					project._zipAdapter = new ZipArchive({
+						virBasePath: "/",
+						fsArchive: project.path
+					});
+					const resource = await project._zipAdapter.byPath("/ui5.yaml");
+					if (!resource) {
+						throw new Error(`File not found in ZIP archive: /ui5.yaml`);
+					}
+					configFile = await resource.getBuffer();
+				} catch (err) {
+					throw new Error(`Error file reading from ZIP file at ${configPath} for project ` +
+						`${project.id}: ${err.message}\n${err.stack}`);
+				}
 			} else {
-				log.verbose(errorText);
-				return null;
+				const errorText = "Failed to read configuration for project " +
+						`${project.id} at "${configPath}". Error: ${err.message}`;
+
+				// Something else than "File or directory does not exist" or root project
+				if (err.code !== "ENOENT" || project._isRoot) {
+					throw new Error(errorText);
+				} else {
+					log.verbose(errorText);
+					return null;
+				}
 			}
 		}
 

package.json

@@ -98,6 +98,7 @@
 	},
 	"dependencies": {
 		"@ui5/builder": "^2.2.0",
+		"@ui5/fs": "^2.0.3",
 		"@ui5/logger": "^2.0.0",
 		"@ui5/server": "^2.2.4",
 		"ajv": "^6.12.5",