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Add support for loading / saving .env #40

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Add support for loading / saving .env #40

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32 changes: 31 additions & 1 deletion src/hooks/useShell.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -51,6 +51,13 @@ export function useShell(): ShellInstance {
await shell.spawn('mv', ['.jshrc', '/home/.jshrc']);
shell.mount(startFiles);

// Get .env from localStorage
const configRaw = localStorage.getItem('vslite_config');
const config = configRaw ? JSON.parse(configRaw) : {};
if (config?.env) {
await shell.fs.writeFile('.env', config.env);
}

// Setup terminal
const terminal = new Terminal({convertEol: true, theme});
const addon = new FitAddon();
Expand All @@ -62,7 +69,10 @@ export function useShell(): ShellInstance {
const watch = await shell.spawn('npx', ['-y', 'chokidar-cli', '.', '-i', '"(**/(node_modules|.git|_tmp_)**)"']);
watch.output.pipeTo(new WritableStream({
async write(data) {
const type: string = data.split(':').at(0) || ''
// Check if it is .env and read it into local storage
if (data.match(/\.env/))
await loadEnv(shell, data);
const type: string = data.split(':').at(0) || '';
if (watchReady) {
debug('Change detected: ', data);
} else if (data.includes('Watching "."')) {
Expand Down Expand Up @@ -122,3 +132,23 @@ export function useShell(): ShellInstance {

return { terminal, container, process, start };
}

async function loadEnv(shell: WebContainer, data: string) {
const configRaw = globalThis.localStorage?.vslite_config;
let config = configRaw ? JSON.parse(configRaw) : {};
debug('.env changed', data);
try {
const bContents = await shell.fs.readFile('.env');
const sContents = new TextDecoder().decode(bContents);
debug('contents', sContents);
if(!config) config = {};
config.env = sContents;
localStorage.setItem('vslite_config', JSON.stringify(config));
} catch(e) {
if (config?.env) {
delete config.env;
localStorage.setItem('vslite_config', JSON.stringify(config));
}
debug('.env file deleted', e);
}
}