feat: basic debug/progress logging

Author: dominykas

lib/deps.js

@@ -1,5 +1,6 @@
 'use strict';
 
+const Debug = require('debug');
 const { Arborist } = require('@npmcli/arborist');
 const Fs = require('fs');
 const Path = require('path');
@@ -11,6 +12,9 @@ const Utils = require('./utils');
 const internals = {};
 
 
+internals.log = Debug('detect-node-support');
+
+
 internals.walk = (node, callback) => {
 
     callback(node);
@@ -103,14 +107,22 @@ internals.tryLoad = async (loadFile, filename) => {
 exports.detect = async ({ packageJson, loadFile }, options) => {
 
     const lockfile = (await internals.tryLoad(loadFile, 'package-lock.json')) || (await internals.tryLoad(loadFile, 'npm-shrinkwrap.json'));
+    internals.log(lockfile ? 'Lock file present' : 'Lock file missing - things will be a bit slower');
 
     const versions = await internals.resolve({ packageJson, lockfile }, options);
 
     const support = [];
     const errors = {};
     let hasErrors = false;
 
-    for (const packageName of Object.keys(versions).sort()) {
+    const packages = Object.keys(versions).sort();
+    const n = packages.length;
+
+    for (let i = 0; i < n; ++i) {
+
+        const packageName = packages[i];
+        internals.log(`Resolving dependency ${i + 1} of ${n}: ${packageName}`);
+
         try {
             const { result } = await Package.detect({ packageName });
             support.push(result);

package.json

@@ -38,6 +38,7 @@
     "@hapi/wreck": "^17.0.0",
     "@npmcli/arborist": "0.0.0-pre.14",
     "@pkgjs/nv": "0.0.3",
+    "debug": "^4.1.1",
     "git-url-parse": "^11.1.2",
     "js-yaml": "^3.13.1",
     "minimist": "^1.2.5",