[code] split helpers into separate files

src/helpers.js

@@ -0,0 +1,38 @@
+const { existsSync, mkdirSync, writeFileSync } = require('fs');
+
+const {
+  GITHUB_WORKSPACE
+} = process.env;
+
+const validateDir = (dir) => {
+  if (!existsSync(dir)) {
+    console.log(`[SSH] Creating ${dir} dir in `, GITHUB_WORKSPACE);
+    mkdirSync(dir);
+    console.log('✅ [SSH] dir created.');
+  } else {
+    console.log(`[SSH] ${dir} dir exist`);
+  }
+};
+
+const validateFile = (filePath) => {
+  if (!existsSync(filePath)) {
+    console.log(`[SSH] Creating ${filePath} file in `, GITHUB_WORKSPACE);
+    try {
+      writeFileSync(filePath, '', {
+        encoding: 'utf8',
+        mode: 0o600
+      });
+      console.log('✅ [SSH] file created.');
+    } catch (e) {
+      console.error('⚠️ [SSH] writeFileSync error', filePath, e.message);
+      process.abort();
+    }
+  } else {
+    console.log(`[SSH] ${filePath} file exist`);
+  }
+};
+
+module.exports = {
+  validateDir,
+  validateFile
+};