feat: support multiple platforms

Author: szymonrybczak

packages/cli/src/commands/addPlatform/addPlatform.ts

@@ -168,29 +168,33 @@ async function addPlatform(
   const templateName = getTemplateName(templateSourceDir);
   const templateConfig = getTemplateConfig(templateName, templateSourceDir);
 
-  if (!templateConfig.platformName) {
+  if (!templateConfig.platforms) {
     throw new CLIError(
-      `Template ${templateName} is missing platformName in its template.config.js`,
+      `Template ${templateName} is missing "platforms" in its "template.config.js"`,
     );
   }
 
-  await copyTemplate(
-    templateName,
-    templateConfig.templateDir,
-    templateSourceDir,
-    templateConfig.platformName,
-  );
+  for (const platform of templateConfig.platforms) {
+    await copyTemplate(
+      templateName,
+      templateConfig.templateDir,
+      templateSourceDir,
+      platform,
+    );
+  }
 
   loader.succeed();
   loader.start('Processing template');
 
-  await changePlaceholderInTemplate({
-    projectName,
-    projectTitle: title,
-    placeholderName: templateConfig.placeholderName,
-    placeholderTitle: templateConfig.titlePlaceholder,
-    projectPath: join(root, templateConfig.platformName),
-  });
+  for (const platform of templateConfig.platforms) {
+    await changePlaceholderInTemplate({
+      projectName,
+      projectTitle: title,
+      placeholderName: templateConfig.placeholderName,
+      placeholderTitle: templateConfig.titlePlaceholder,
+      projectPath: join(root, platform),
+    });
+  }
 
   loader.succeed();
 

packages/cli/src/commands/init/editTemplate.ts

@@ -146,7 +146,7 @@ export async function replacePlaceholderWithPackageName({
   placeholderName,
   placeholderTitle,
   packageName,
-  projectPath,
+  projectPath = process.cwd(),
 }: Omit<Required<PlaceholderConfig>, 'projectTitle'>) {
   validatePackageName(packageName);
   const cleanPackageName = packageName.replace(/[^\p{L}\p{N}.]+/gu, '');

packages/cli/src/commands/init/template.ts

@@ -14,7 +14,7 @@ export type TemplateConfig = {
   templateDir: string;
   postInitScript?: string;
   titlePlaceholder?: string;
-  platformName: string;
+  platforms?: string[];
 };
 
 export async function installTemplatePackage(
@@ -92,7 +92,7 @@ export async function copyTemplate(
   templateName: string,
   templateDir: string,
   templateSourceDir: string,
-  platformName: string = '',
+  platform: string = '',
 ) {
   const templatePath = path.resolve(
     templateSourceDir,
@@ -103,13 +103,9 @@ export async function copyTemplate(
 
   logger.debug(`Copying template from ${templatePath}`);
   let regexStr = path.resolve(templatePath, 'node_modules');
-  await copyFiles(
-    join(templatePath, platformName),
-    join(process.cwd(), platformName),
-    {
-      exclude: [new RegExp(replacePathSepForRegex(regexStr))],
-    },
-  );
+  await copyFiles(join(templatePath, platform), join(process.cwd(), platform), {
+    exclude: [new RegExp(replacePathSepForRegex(regexStr))],
+  });
 }
 
 export function executePostInitScript(