85 lines
1.6 KiB
JavaScript
85 lines
1.6 KiB
JavaScript
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import { write, close } from 'node:fs';
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import { spawn } from 'node:child_process';
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import { file } from 'tmp-promise';
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import { renderFile } from './src/template_engine.mjs';
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if (process.argv.length <= 2) {
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console.error(
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`Usage: n0m [options] template_file.n0m\n` +
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`Options:\n` +
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` -c compile (by default the script will be executed)`
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)
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process.exit(1);
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}
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let compileOnly = false;
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const args = process.argv
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.slice(2)
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.filter(arg => {
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if (arg.toLocaleLowerCase() === '-c') {
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compileOnly = true;
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return false;
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}
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return true;
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});
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const fileName = args[0];
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const scriptArgs = args.slice(1);
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let rendered;
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try {
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rendered = await renderFile(fileName);
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} catch (e) {
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console.log("Error Rendering Template:")
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console.log(e?.message || "Unknown Error");
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process.exit(0);
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}
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if (compileOnly) {
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process.stdout.write(rendered);
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process.exit(0);
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}
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// Create temporary file
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const { fd, path, cleanup } = await file({
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mode: 0o744,
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detachDescriptor: true
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});
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// Write script to temporary file and close file if successful
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await new Promise((resolve, reject) => {
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write(fd, rendered, async writeErr => {
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if (writeErr) {
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reject(writeErr);
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return;
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}
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close(fd, (closeErr) => {
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if (closeErr) {
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reject(closeErr);
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return;
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}
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resolve();
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});
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});
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});
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// Spawn child process to execute script
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let child = spawn(
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path,
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scriptArgs, {
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stdio: 'inherit',
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argv0: fileName
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}
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);
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// Clean up temporary files once the child exits
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child.on('close', async () => {
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await cleanup();
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});
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