Fixing .gitignores

`yarn pack` doesn't add `.gitignore` files to the package, so they don't
end up in the spawned repos.
Using `gitignore` (without dot) files instead, and renaming them in
spawning script

Author: mutantcornholio

README.md

@@ -35,7 +35,11 @@ npx --yes --package=<path-to-create-polkadot-dapp>/dist create-polkadot-dapp
 
 ### Adding new template
 Add sources to `templates/` directory. These will be copied to target directory.  
-Add new configuration to `src/templateConfigs/` and export it from `index.ts`. The exported name must match the directory name in `templates/`.
+Add new configuration to `src/templateConfigs/` and export it from `index.ts`. The exported name must match the directory name in `templates/`.  
+
+#### Note on `.gitignore`
+`yarn pack` doesn't include `.gitignore` files into the package, even if manually included into `files` section in package.json.  
+To circumvent this, we're placing `gitignore` (without the dot) files in the templates instead, and renaming the files after spawning.  
 
 ### Back sync
 It can be more convenient to develop template code outside of `create-polkadot-dapp`.  

src/scripts/backSync.ts

@@ -20,7 +20,7 @@ program
 program.parse();
 const options: { source: string; template: TemplateNames; rm: boolean } = program.opts();
 
-const alwaysIgnorePatterns = [/^\.papi\/metadata.*/];
+const alwaysIgnorePatterns = [/^\.papi\/metadata.*/, /^\.gitignore$/];
 
 const gitignoreContents = fs.readFileSync(path.join(options.source, ".gitignore"), "utf-8");
 const gitignoreIg = ignore().add(gitignoreContents);

src/util/spawnTemplate.ts

@@ -54,6 +54,8 @@ async function updateFiles(dappData: DappData, targetDir: string): Promise<void>
 
     await fs.writeFile(pkgJsonPath, JSON.stringify(pkgJsonContent, null, 2));
   }
+
+  await fs.rename(path.join(targetDir, "gitignore"), path.join(targetDir, ".gitignore"));
 }
 
 async function installDeps(targetDir: string, dappData: DappData): Promise<void> {