Add 'scripting.js'

scripting.js

@@ -0,0 +1,66 @@
+#!/usr/bin/node
+
+const fs = require('fs');
+const execSync = require('child_process').execSync;
+const spawn = require('child_process').spawn;
+
+async function bash(bashScript, options) {
+        var bashArgs = [];
+        if (options !== undefined) {
+                if (options.strict === true) {
+                        bashArgs.push("-e");
+                }
+        }
+        bashArgs.push("-");
+        var child = spawn("bash", bashArgs);
+        child.stdin.setEncoding('utf-8');
+        child.stdin.write(bashScript);
+        child.stdin.end();
+        let data = "";
+        for await (const chunk of child.stdout) {
+                data += chunk;
+        }
+        let error = "";
+        for await (const chunk of child.stderr) {
+                error += chunk;
+        }
+                                                                                                                                                                           const exitCode = await new Promise( (resolve, reject) => {                                                                                                                 child.on('close', resolve);                                                                                                                                });
+
+        if (exitCode) {
+                throw new Error( `subprocess error exit ${exitCode}, ${error}`);
+        }
+
+        return data;
+}
+function exec(text) {
+        return execSync(text)+'';
+}
+function print(text) {
+        process.stdout.write(text);
+}
+function println(text) {
+        process.stdout.write(text + '\n');
+}
+
+const scriptPath = process.argv[2];
+const args = process.argv.splice(3);
+
+const rawScriptContent = fs.readFileSync(scriptPath)+'';
+const fixedScriptContent = rawScriptContent.substring(rawScriptContent.indexOf("\n") + 1);
+
+const scriptPrefix = `async () => {`;
+const scriptSuffix = `}`;
+var evaluatedScript = eval(scriptPrefix + fixedScriptContent + scriptSuffix);
+
+
+// Cleanup variables
+delete spawn;
+delete fs;
+delete execSync;
+delete scriptPath;
+delete rawScriptContent;
+delete fixedScriptContent;
+delete scriptPrefix;
+delete scriptSuffix;
+
+evaluatedScript();