Merge pull request #24 from vordgi/cm-23

cm-23 add disabledistdeletion option

README.md

@@ -29,6 +29,7 @@ yarn add classnames-minifier
 * `reservedNames` - array of reserved names that should not be used by this package (must include prefix);
 * `cacheDir` - directory where this library will write the cache. Passing this parameter will enable caching. Use this option only if your framework really needs it;
 * `distDir` - directory where the project is being assembled. Used only when caching is enabled to synchronize caches between this library and the project;
+* `disableDistDeletion` - option that allows you to disable the automatic deletion of the dist folder if necessary (*f.e. differences in package setup in cache and now or first launch*);
 
 Configuration example:
 ```js

src/lib/types/plugin.ts

@@ -3,4 +3,5 @@ export type Config = {
     distDir?: string;
     prefix?: string;
     reservedNames?: string[];
+    disableDistDeletion?: boolean;
 };

src/lib/validateDist.ts

@@ -13,7 +13,7 @@ const readManifest = (manifestPath: string) => {
 };
 
 const validateDist = (pluginOptions: Config) => {
-    const { cacheDir, distDir, prefix, reservedNames } = pluginOptions;
+    const { cacheDir, distDir, prefix, reservedNames, disableDistDeletion } = pluginOptions;
 
     if (!cacheDir || !distDir) {
         console.log(
@@ -56,9 +56,13 @@ const validateDist = (pluginOptions: Config) => {
         configurationError = `Can not find the package cache manifest at ${manifestPath}\n`;
     }
     if (configurationError) {
-        console.log(`classnames-minifier: ${configurationError}Cleaning the dist folder...`);
-        fs.rmSync(distDir, { recursive: true, force: true });
-        console.log("classnames-minifier: Dist folder cleared");
+        if (!disableDistDeletion) {
+            console.log(`classnames-minifier: ${configurationError}Cleaning the dist folder...`);
+            fs.rmSync(distDir, { recursive: true, force: true });
+            console.log("classnames-minifier: Dist folder cleared");
+        } else {
+            console.log(`classnames-minifier: ${configurationError}"disableDistDeletion" option was set to true`);
+        }
     }
     if (!fs.existsSync(manifestDir)) fs.mkdirSync(manifestDir, { recursive: true });
     fs.writeFileSync(manifestPath, JSON.stringify({ ...pluginOptions, version: CODE_VERSION }), { encoding: "utf-8" });