Chore: remove unused files

Build/build-common.ts

@@ -1,6 +1,7 @@
 // @ts-check
 
 import * as path from 'node:path';
+import fsp from 'node:fs/promises';
 import { readFileByLine } from './lib/fetch-text-by-line';
 import { processLine } from './lib/process-line';
 import { createRuleset } from './lib/create-file';
@@ -12,6 +13,7 @@ import { fdir as Fdir } from 'fdir';
 import { appendArrayInPlace } from './lib/append-array-in-place';
 
 const MAGIC_COMMAND_SKIP = '# $ custom_build_script';
+const MAGIC_COMMAND_RM = '# $ custom_no_output';
 const MAGIC_COMMAND_TITLE = '# $ meta_title ';
 const MAGIC_COMMAND_DESCRIPTION = '# $ meta_description ';
 
@@ -69,6 +71,9 @@ export const buildCommon = task(require.main === module, __filename)(async (span
   return Promise.all(promises);
 });
 
+const $skip = Symbol('skip');
+const $rm = Symbol('rm');
+
 const processFile = (span: Span, sourcePath: string) => {
   // console.log('Processing', sourcePath);
   return span.traceChildAsync(`process file: ${sourcePath}`, async () => {
@@ -79,8 +84,11 @@ const processFile = (span: Span, sourcePath: string) => {
 
     try {
       for await (const line of readFileByLine(sourcePath)) {
+        if (line.startsWith(MAGIC_COMMAND_RM)) {
+          return $rm;
+        }
         if (line.startsWith(MAGIC_COMMAND_SKIP)) {
-          return null;
+          return $skip;
         }
 
         if (line.startsWith(MAGIC_COMMAND_TITLE)) {
@@ -113,10 +121,19 @@ function transformDomainset(parentSpan: Span, sourcePath: string, relativePath:
       `transform domainset: ${path.basename(sourcePath, path.extname(sourcePath))}`,
       async (span) => {
         const res = await processFile(span, sourcePath);
-        if (!res) return;
+        if (res === $skip) return;
 
-        const [title, descriptions, lines] = res;
+        const clashFileBasename = relativePath.slice(0, -path.extname(relativePath).length);
 
+        if (res === $rm) {
+          return Promise.all([
+            path.resolve(outputSurgeDir, relativePath),
+            path.resolve(outputClashDir, `${clashFileBasename}.txt`),
+            path.resolve(outputSingboxDir, `${clashFileBasename}.json`)
+          ].map(f => fsp.rm(f, { force: true })));
+        }
+
+        const [title, descriptions, lines] = res;
         const deduped = domainDeduper(lines);
 
         let description: string[];
@@ -128,8 +145,6 @@ function transformDomainset(parentSpan: Span, sourcePath: string, relativePath:
           description = SHARED_DESCRIPTION;
         }
 
-        const clashFileBasename = relativePath.slice(0, -path.extname(relativePath).length);
-
         return createRuleset(
           span,
           title,
@@ -155,7 +170,17 @@ async function transformRuleset(parentSpan: Span, sourcePath: string, relativePa
     .traceChild(`transform ruleset: ${path.basename(sourcePath, path.extname(sourcePath))}`)
     .traceAsyncFn(async (span) => {
       const res = await processFile(span, sourcePath);
-      if (!res) return null;
+      if (res === $skip) return;
+
+      const clashFileBasename = relativePath.slice(0, -path.extname(relativePath).length);
+
+      if (res === $rm) {
+        return Promise.all([
+          path.resolve(outputSurgeDir, relativePath),
+          path.resolve(outputClashDir, `${clashFileBasename}.txt`),
+          path.resolve(outputSingboxDir, `${clashFileBasename}.json`)
+        ].map(f => fsp.rm(f, { force: true })));
+      }
 
       const [title, descriptions, lines] = res;
 
@@ -168,8 +193,6 @@ async function transformRuleset(parentSpan: Span, sourcePath: string, relativePa
         description = SHARED_DESCRIPTION;
       }
 
-      const clashFileBasename = relativePath.slice(0, -path.extname(relativePath).length);
-
       return createRuleset(
         span,
         title,

Source/domainset/steam.conf

@@ -1,3 +1,4 @@
+# $ custom_no_output
 # $ custom_build_script -- will be included in download.conf
 
 # Steam