Merge upstream

cli/.gitignore

@@ -1,2 +1,3 @@
 node_modules
 build
+.DS_Store

cli/README.md

@@ -47,7 +47,7 @@ The default values for each `config` option can be found in the [`codecs.js`][co
 
 Squoosh CLI has an _experimental_ auto optimizer that compresses an image as much as possible, trying to hit a specific [Butteraugli] target value. The higher the Butteraugli target value, the more artifacts can be introduced.
 
-You can make use of the auto optimizer buy using “auto” as the config object.
+You can make use of the auto optimizer by using “auto” as the config object.
 
 ```
 $ npx @squoosh/cli --wp2 auto test.png

cli/package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "@squoosh/cli",
-  "version": "0.5.0",
+  "version": "0.6.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {

cli/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@squoosh/cli",
-  "version": "0.5.0",
+  "version": "0.6.0",
   "description": "A CLI for Squoosh",
   "public": true,
   "bin": {

cli/src/index.js

@@ -4,6 +4,7 @@ import { isMainThread } from 'worker_threads';
 import { cpus } from 'os';
 import { extname, join, basename } from 'path';
 import { promises as fsp } from 'fs';
+import { resolve as resolvePath } from 'path';
 import { version } from 'json:../package.json';
 import ora from 'ora';
 import kleur from 'kleur';
@@ -182,7 +183,32 @@ function progressTracker(results) {
   return tracker;
 }
 
+async function checkInputFilesValid(files) {
+  const validFiles = [];
+
+  for (const file of files) {
+    try {
+      await fsp.stat(file);
+    } catch (err) {
+      if (err.code === 'ENOENT') {
+        console.warn(
+          `Warning: Input file does not exist: ${resolvePath(file)}`,
+        );
+        continue;
+      } else {
+        throw err;
+      }
+    }
+
+    validFiles.push(file);
+  }
+
+  return validFiles;
+}
+
 async function processFiles(files) {
+  files = await checkInputFilesValid(files);
+
   const parallelism = cpus().length;
 
   const results = new Map();