release plan : increment version from 0.0.0 (#831)

* release plan : increment version from 0.0.0

* update new-plugin

Author: romainmenke

.github/bin/new-plugin.mjs

@@ -60,7 +60,7 @@ console.log(`- Creating new plugin ${pluginName}`);
 		path.join(pluginDir, 'CHANGELOG.md'),
 		`# Changes to PostCSS ${pluginName}
 
-### 1.0.0 (Unreleased)
+### Unreleased (major)
 
 - Initial version
 `,
@@ -74,7 +74,7 @@ console.log(`- Creating new plugin ${pluginName}`);
 	const packageInfo = JSON.parse(await fsp.readFile(path.join(pluginDir, 'package.json'), 'utf8'));
 	packageInfo.name = packageName;
 	packageInfo.description = `TODO: Add description for ${pluginName}`;
-	packageInfo.version = '1.0.0';
+	packageInfo.version = '0.0.0';
 	packageInfo.homepage = `https://github.com/csstools/postcss-plugins/tree/main/plugins/${pluginSlug}#readme`;
 	packageInfo.bugs = 'https://github.com/csstools/postcss-plugins/issues';
 	packageInfo.csstools.exportName = exportName;

.github/bin/release-plan/npm-version.mjs

@@ -3,6 +3,29 @@ import fs from 'fs/promises';
 import path from 'path';
 
 export async function npmVersion(increment, packageDirectory) {
+	{
+		const packageInfo = JSON.parse(await fs.readFile(path.join(packageDirectory, 'package.json')));
+		if (packageInfo.version === '0.0.0') {
+			switch (increment) {
+				case 'major':
+					packageInfo.version = '1.0.0';
+					break;
+				case 'minor':
+					packageInfo.version = '0.1.0';
+					break;
+				case 'patch':
+					packageInfo.version = '0.0.1';
+					break;
+
+				default:
+					throw new Error(`Unknown increment "${increment}"`);
+			}
+
+			await fs.writeFile(path.join(packageDirectory, 'package.json'), JSON.stringify(packageInfo, null, '\t'));
+			return packageInfo.version;
+		}
+	}
+
 	await new Promise((resolve, reject) => {
 		const versionCmd = spawn(
 			'npm',