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perf(cli): actually lazy-load command implementations
buildLazyCommand() provided no laziness: cli-executable.ts statically imported { commandSpec } from every *.command.ts, and since each of those modules held both the spec and the implementation, the static import pulled in the whole module. esbuild then collapsed the dynamic import inside buildLazyCommand entirely, so `varlock --version` eagerly parsed the full proxy subsystem. Split each command's spec into a sibling *.command-spec.ts holding only name/description/args/examples, and register commands with gunshi's own lazy(loader, definition) helper. The entry now imports specs only, and the implementation arrives through a dynamic import when the command runs. For the three commands with nested subcommands (proxy, cache, keychain), the spec module declares each verb as its own lazy() whose loader pulls the run fn out of the implementation module, so the parent spec no longer embeds the implementations by construction.
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Lines changed: 1339 additions & 1251 deletions

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‎.bumpy/lazy-command-loading.md‎

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---
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varlock: patch
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---
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lazy-load CLI command implementations so startup does not parse every command

‎packages/varlock/src/cli/cli-executable.ts‎

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import { cli, type Command } from 'gunshi';
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import { cli, lazy } from 'gunshi';
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import completion from '@gunshi/plugin-completion';
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import { gracefulExit } from 'exit-hook';
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@@ -16,75 +16,65 @@ import { checkLocalVersionMismatch } from '../lib/check-local-version';
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import packageJson from '../../package.json';
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import { enforceProxyContextGuards } from './helpers/proxy-context-guard';
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// we'll import just the spec from each, so the implementations can be lazy loaded
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import { commandSpec as initCommandSpec } from './commands/init.command';
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import { commandSpec as loadCommandSpec } from './commands/load.command';
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import { commandSpec as runCommandSpec } from './commands/run.command';
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import { commandSpec as printenvCommandSpec } from './commands/printenv.command';
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import { commandSpec as encryptCommandSpec } from './commands/encrypt.command';
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import { commandSpec as lockCommandSpec } from './commands/lock.command';
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import { commandSpec as revealCommandSpec } from './commands/reveal.command';
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// import { commandSpec as doctorCommandSpec } from './commands/doctor.command';
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import { commandSpec as helpCommandSpec } from './commands/help.command';
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import { commandSpec as telemetryCommandSpec } from './commands/telemetry.command';
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import { commandSpec as explainCommandSpec } from './commands/explain.command';
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import { commandSpec as flattenCommandSpec } from './commands/flatten.command';
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import { commandSpec as scanCommandSpec } from './commands/scan.command';
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import { commandSpec as codegenCommandSpec } from './commands/codegen.command';
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import { commandSpec as typegenCommandSpec } from './commands/typegen.command';
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import { commandSpec as installPluginCommandSpec } from './commands/install-plugin.command';
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import { commandSpec as auditCommandSpec } from './commands/audit.command';
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import { commandSpec as generateKeyCommandSpec } from './commands/generate-key.command';
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import { commandSpec as cacheCommandSpec } from './commands/cache.command';
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import { commandSpec as keychainCommandSpec } from './commands/keychain.command';
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import { commandSpec as proxyCommandSpec } from './commands/proxy.command';
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// import { commandSpec as loginCommandSpec } from './commands/login.command';
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// import { commandSpec as pluginCommandSpec } from './commands/plugin.command';
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// Only the spec (name/description/args/examples) is imported eagerly - each command's
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// implementation lives in a sibling `*.command.ts` that is pulled in via a dynamic
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// import when that command actually runs. Keeping the two in separate modules is what
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// makes the split real: importing anything from `*.command.ts` here would drag the whole
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// implementation into the entry chunk and collapse the dynamic import away.
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import { commandSpec as initCommandSpec } from './commands/init.command-spec';
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import { commandSpec as loadCommandSpec } from './commands/load.command-spec';
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import { commandSpec as runCommandSpec } from './commands/run.command-spec';
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import { commandSpec as printenvCommandSpec } from './commands/printenv.command-spec';
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import { commandSpec as encryptCommandSpec } from './commands/encrypt.command-spec';
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import { commandSpec as lockCommandSpec } from './commands/lock.command-spec';
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import { commandSpec as revealCommandSpec } from './commands/reveal.command-spec';
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// import { commandSpec as doctorCommandSpec } from './commands/doctor.command-spec';
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import { commandSpec as helpCommandSpec } from './commands/help.command-spec';
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import { commandSpec as telemetryCommandSpec } from './commands/telemetry.command-spec';
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import { commandSpec as explainCommandSpec } from './commands/explain.command-spec';
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import { commandSpec as flattenCommandSpec } from './commands/flatten.command-spec';
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import { commandSpec as scanCommandSpec } from './commands/scan.command-spec';
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import { commandSpec as codegenCommandSpec } from './commands/codegen.command-spec';
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import { commandSpec as typegenCommandSpec } from './commands/typegen.command-spec';
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import { commandSpec as installPluginCommandSpec } from './commands/install-plugin.command-spec';
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import { commandSpec as auditCommandSpec } from './commands/audit.command-spec';
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import { commandSpec as generateKeyCommandSpec } from './commands/generate-key.command-spec';
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import { commandSpec as cacheCommandSpec } from './commands/cache.command-spec';
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import { commandSpec as keychainCommandSpec } from './commands/keychain.command-spec';
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import { commandSpec as proxyCommandSpec } from './commands/proxy.command-spec';
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// import { commandSpec as loginCommandSpec } from './commands/login.command-spec';
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// import { commandSpec as pluginCommandSpec } from './commands/plugin.command-spec';
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// must happen before anything writes to stdio
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handleBrokenPipe();
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let versionId = packageJson.version;
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if (__VARLOCK_BUILD_TYPE__ !== 'release') versionId += `-${__VARLOCK_BUILD_TYPE__}`;
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// TODO: this is not splitting the bundle correctly to actually lazy load the command fns
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function buildLazyCommand(
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commandSpec: Command<any>,
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loadCommandFn: () => Promise<{ commandSpec: Command<any>, commandFn: any }>,
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) {
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return {
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...commandSpec,
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run: async (...args: Array<any>) => {
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const commandSpecAndFn = await loadCommandFn();
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return await commandSpecAndFn.commandFn(...args);
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},
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};
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}
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const subCommands = new Map();
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subCommands.set('init', buildLazyCommand(initCommandSpec, async () => await import('./commands/init.command')));
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subCommands.set('load', buildLazyCommand(loadCommandSpec, async () => await import('./commands/load.command')));
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subCommands.set('run', buildLazyCommand(runCommandSpec, async () => await import('./commands/run.command')));
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subCommands.set('printenv', buildLazyCommand(printenvCommandSpec, async () => await import('./commands/printenv.command')));
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subCommands.set('encrypt', buildLazyCommand(encryptCommandSpec, async () => await import('./commands/encrypt.command')));
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subCommands.set('lock', buildLazyCommand(lockCommandSpec, async () => await import('./commands/lock.command')));
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subCommands.set('reveal', buildLazyCommand(revealCommandSpec, async () => await import('./commands/reveal.command')));
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// subCommands.set('doctor', buildLazyCommand(doctorCommandSpec, async () => await import('./commands/doctor.command')));
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subCommands.set('explain', buildLazyCommand(explainCommandSpec, async () => await import('./commands/explain.command')));
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subCommands.set('flatten', buildLazyCommand(flattenCommandSpec, async () => await import('./commands/flatten.command')));
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subCommands.set('help', buildLazyCommand(helpCommandSpec, async () => await import('./commands/help.command')));
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subCommands.set('telemetry', buildLazyCommand(telemetryCommandSpec, async () => await import('./commands/telemetry.command')));
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subCommands.set('scan', buildLazyCommand(scanCommandSpec, async () => await import('./commands/scan.command')));
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subCommands.set('audit', buildLazyCommand(auditCommandSpec, async () => await import('./commands/audit.command')));
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subCommands.set('codegen', buildLazyCommand(codegenCommandSpec, async () => await import('./commands/codegen.command')));
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subCommands.set('typegen', buildLazyCommand(typegenCommandSpec, async () => await import('./commands/typegen.command')));
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subCommands.set('install-plugin', buildLazyCommand(installPluginCommandSpec, async () => await import('./commands/install-plugin.command')));
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subCommands.set('generate-key', buildLazyCommand(generateKeyCommandSpec, async () => await import('./commands/generate-key.command')));
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subCommands.set('cache', buildLazyCommand(cacheCommandSpec, async () => await import('./commands/cache.command')));
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subCommands.set('keychain', buildLazyCommand(keychainCommandSpec, async () => await import('./commands/keychain.command')));
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subCommands.set('proxy', buildLazyCommand(proxyCommandSpec, async () => await import('./commands/proxy.command')));
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// subCommands.set('login', buildLazyCommand(loginCommandSpec, async () => await import('./commands/login.command')));
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// subCommands.set('plugin', buildLazyCommand(pluginCommandSpec, async () => await import('./commands/plugin.command')));
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subCommands.set('init', lazy(async () => (await import('./commands/init.command')).commandFn, initCommandSpec));
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subCommands.set('load', lazy(async () => (await import('./commands/load.command')).commandFn, loadCommandSpec));
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subCommands.set('run', lazy(async () => (await import('./commands/run.command')).commandFn, runCommandSpec));
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subCommands.set('printenv', lazy(async () => (await import('./commands/printenv.command')).commandFn, printenvCommandSpec));
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subCommands.set('encrypt', lazy(async () => (await import('./commands/encrypt.command')).commandFn, encryptCommandSpec));
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subCommands.set('lock', lazy(async () => (await import('./commands/lock.command')).commandFn, lockCommandSpec));
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subCommands.set('reveal', lazy(async () => (await import('./commands/reveal.command')).commandFn, revealCommandSpec));
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// subCommands.set('doctor', lazy(async () => (await import('./commands/doctor.command')).commandFn, doctorCommandSpec));
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subCommands.set('explain', lazy(async () => (await import('./commands/explain.command')).commandFn, explainCommandSpec));
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subCommands.set('flatten', lazy(async () => (await import('./commands/flatten.command')).commandFn, flattenCommandSpec));
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subCommands.set('help', lazy(async () => (await import('./commands/help.command')).commandFn, helpCommandSpec));
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subCommands.set('telemetry', lazy(async () => (await import('./commands/telemetry.command')).commandFn, telemetryCommandSpec));
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subCommands.set('scan', lazy(async () => (await import('./commands/scan.command')).commandFn, scanCommandSpec));
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subCommands.set('audit', lazy(async () => (await import('./commands/audit.command')).commandFn, auditCommandSpec));
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subCommands.set('codegen', lazy(async () => (await import('./commands/codegen.command')).commandFn, codegenCommandSpec));
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subCommands.set('typegen', lazy(async () => (await import('./commands/typegen.command')).commandFn, typegenCommandSpec));
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subCommands.set('install-plugin', lazy(async () => (await import('./commands/install-plugin.command')).commandFn, installPluginCommandSpec));
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subCommands.set('generate-key', lazy(async () => (await import('./commands/generate-key.command')).commandFn, generateKeyCommandSpec));
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subCommands.set('cache', lazy(async () => (await import('./commands/cache.command')).commandFn, cacheCommandSpec));
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subCommands.set('keychain', lazy(async () => (await import('./commands/keychain.command')).commandFn, keychainCommandSpec));
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subCommands.set('proxy', lazy(async () => (await import('./commands/proxy.command')).commandFn, proxyCommandSpec));
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// subCommands.set('login', lazy(async () => (await import('./commands/login.command')).commandFn, loginCommandSpec));
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// subCommands.set('plugin', lazy(async () => (await import('./commands/plugin.command')).commandFn, pluginCommandSpec));
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(async function go() {
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try {

‎packages/varlock/src/cli/commands/audit.command-spec.ts‎

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import { define } from 'gunshi';
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export const commandSpec = define({
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name: 'audit',
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description: 'Audit code env var usage against your .env.schema',
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args: {
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targets: {
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type: 'positional',
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required: false,
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multiple: true,
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description: 'Directories to scan for env var references (defaults to the current project)',
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},
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path: {
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type: 'string',
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short: 'p',
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description: 'Path to a specific .env file or directory to use as the schema entry point',
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},
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ignore: {
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type: 'string',
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short: 'i',
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multiple: true,
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description: 'Directory to exclude from code scanning (can be specified multiple times)',
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},
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},
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examples: `
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Scans your source code for environment variable references and compares them
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to keys defined in your varlock schema.
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Examples:
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varlock audit # Audit current project
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varlock audit --path .env.prod # Audit using a specific env entry point
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varlock audit ./src ./lib # Only scan specific directories
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varlock audit --ignore vendor # Exclude a directory from scanning
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varlock audit -i vendor -i generated # Exclude multiple directories
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`.trim(),
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});

‎packages/varlock/src/cli/commands/audit.command.ts‎

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import fs from 'node:fs/promises';
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import path from 'node:path';
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import ansis from 'ansis';
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import { define } from 'gunshi';
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import { FileBasedDataSource } from '../../env-graph';
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import { loadVarlockEnvGraph } from '../../lib/load-graph';
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import { gracefulExit } from 'exit-hook';
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import { diffSchemaAndCodeKeys } from '../helpers/audit-diff';
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import { isWellKnownEnvKey } from '../helpers/well-known-env-keys';
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import { commandSpec } from './audit.command-spec';
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export const commandSpec = define({
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name: 'audit',
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description: 'Audit code env var usage against your .env.schema',
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args: {
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targets: {
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type: 'positional',
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required: false,
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multiple: true,
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description: 'Directories to scan for env var references (defaults to the current project)',
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},
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path: {
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type: 'string',
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short: 'p',
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description: 'Path to a specific .env file or directory to use as the schema entry point',
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},
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ignore: {
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type: 'string',
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short: 'i',
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multiple: true,
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description: 'Directory to exclude from code scanning (can be specified multiple times)',
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},
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},
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examples: `
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Scans your source code for environment variable references and compares them
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to keys defined in your varlock schema.
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Examples:
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varlock audit # Audit current project
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varlock audit --path .env.prod # Audit using a specific env entry point
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varlock audit ./src ./lib # Only scan specific directories
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varlock audit --ignore vendor # Exclude a directory from scanning
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varlock audit -i vendor -i generated # Exclude multiple directories
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`.trim(),
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});
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export { commandSpec };
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5421
function formatReference(cwd: string, ref: EnvVarReference): string {
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const relPath = path.relative(cwd, ref.filePath);

‎packages/varlock/src/cli/commands/cache.command-spec.ts‎

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import { define, lazy } from 'gunshi';
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// --- `varlock cache status` -------------------------------------------------
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export const statusCommandSpec = define({
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name: 'status',
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description: 'Print a cache status summary (non-interactive)',
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});
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// --- `varlock cache clear` --------------------------------------------------
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export const clearCommandSpec = define({
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name: 'clear',
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description: 'Clear cache entries',
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args: {
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plugin: {
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type: 'string',
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description: 'Clear cache for a specific plugin only',
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},
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yes: {
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type: 'boolean',
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short: 'y',
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description: 'Skip confirmation prompts (required when non-interactive)',
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},
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},
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examples: `
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varlock cache clear --yes # Clear all entries (no prompt)
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varlock cache clear --plugin 1password --yes # Clear cache for a specific plugin
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`.trim(),
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});
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// --- `varlock cache` (parent) -----------------------------------------------
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export const commandSpec = define({
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name: 'cache',
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description: 'Manage the varlock cache',
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subCommands: {
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status: lazy(async () => (await import('./cache.command')).statusCommandFn, statusCommandSpec),
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clear: lazy(async () => (await import('./cache.command')).clearCommandFn, clearCommandSpec),
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},
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examples: `
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Manage the encrypted value cache used by cache() and plugin authors.
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Examples:
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varlock cache # Interactive cache browser (or status summary if non-TTY)
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varlock cache status # Print cache status summary (non-interactive)
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varlock cache clear --yes # Clear all entries (no prompt)
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varlock cache clear --plugin 1password --yes # Clear cache for a specific plugin
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`.trim(),
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});

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