Déjà-run

Skip running expensive commands or functions when input or output files or directories, or other dependencies haven’t changed.

CLI

npx dejarun \
  --input src \
  --output lang.json \
  -- 'formatjs extract "src/**/*.{ts,tsx,vue}" --out-file lang.json'

API

import dejarun from "dejarun";

await dejarun(
  "extract-messages", // Unique name for this operation
  async () => {
    // Your expensive operation
    await extractAndWrite(["src"], {
      outFile: "lang.json",
    });
  },
  // Options
  {
    inputs: ["src"], // Files or directories
    outputs: ["lang.json"], // Files or directories
    // dependencies: [], // Other dependencies
  },
);

Example output

[déjàrun] Cache hit, skip: extract-messages

Options

| CLI flag | API Option | Type | Description | | --------------------------- | -------------- | ----------------- | -------------------------------------------------------------------------------------------------------------------------------------------- | | --input (multiple) | inputs | string[] | Input files or directories to hash | | --output (multiple) | outputs | string[] | Output files or directories to hash | | --dependency (multiple) | dependencies | any[] | Extra data to hash (e.g. CLI args, config values) | | --clean | clean | boolean | Force rerun even if nothing changed | | --debug | debug | boolean | Print internal debug info | | --logo, --no-logo | logo | string \| false | Customize the logo in the logs. You may use chalk, e.g. '${chalk.green("→")}'. Set false to hide. |

All options are optional.