fix(ncu-ci): fix cache and stats option, and use tmpdir for cache (#849)

bin/ncu-ci.js

@@ -77,12 +77,13 @@ const args = yargs(hideBin(process.argv))
  })
  .option('stats', {
  default: false,
+ type: 'boolean',
  describe: 'Aggregate the results'
  })
  .option('cache', {
  default: false,
- describe: 'Cache the responses from Jenkins in .ncu/cache/ under' +
-  ' the node-core-utils installation directory'
+ type: 'boolean',
+ describe: 'Cache the responses from Jenkins in $tmpdir/ncu/cache for testing'
  })
  .option('limit', {
  default: 99,
@@ -199,13 +200,14 @@ const args = yargs(hideBin(process.argv))
  builder: (yargs) => {
  yargs
  .option('stats', {
+ type: 'boolean',
  default: false,
  describe: 'Aggregate the results'
  })
  .option('cache', {
+ type: 'boolean',
  default: false,
- describe: 'Cache the responses from Jenkins in .ncu/cache/ under' +
- ' the node-core-utils installation directory'
+ describe: 'Cache the responses from Jenkins in $tmpdir/ncu/cache for testing'
  })
  .option('limit', {
  default: 15,

docs/ncu-ci.md

@@ -111,7 +111,7 @@ Possible use cases:
  is run, it picks up cached data written on disk for jobs whose results
  are known.
 
- Note: results are cached in `${ncu_installation_path}/.ncu/cache`, so you
+ Note: results are cached in `$tmpdir/ncu/cache`, so you
  may want to clean it up from time to time.
 
  ```

lib/cache.js

@@ -1,24 +1,22 @@
 import path from 'node:path';
 import fs from 'node:fs';
-import { fileURLToPath } from 'node:url';
+import os from 'node:os';
 
 import { writeJson, readJson, writeFile, readFile } from './file.js';
 
 function isAsync(fn) {
  return fn[Symbol.toStringTag] === 'AsyncFunction';
 }
 
-const parentDir = fileURLToPath(new URL('..', import.meta.url));
-
 export default class Cache {
  constructor(dir) {
- this.dir = dir || this.computeCacheDir(parentDir);
+ this.dir = dir || this.computeCacheDir(os.tmpdir());
  this.originals = {};
  this.disabled = true;
  }
 
  computeCacheDir(base) {
- return path.join(base, '.ncu', 'cache');
+ return path.join(base, 'ncu', 'cache');
  }
 
  disable() {