Switch linter from semistandard to biome

Uses the recommended rules apart from complexity/useArrowFunction,
which would affect about 1700 lines of code with little benefit
right now. This is something that can be addressed over time.

lib/channel.js

@@ -1,8 +1,6 @@
 // Copyright 2013 Lovell Fuller and others.
 // SPDX-License-Identifier: Apache-2.0
 
-'use strict';
-
 const is = require('./is');
 
 /**

lib/colour.js

@@ -1,8 +1,6 @@
 // Copyright 2013 Lovell Fuller and others.
 // SPDX-License-Identifier: Apache-2.0
 
-'use strict';
-
 const color = require('@img/colour');
 const is = require('./is');
 

lib/composite.js

@@ -1,8 +1,6 @@
 // Copyright 2013 Lovell Fuller and others.
 // SPDX-License-Identifier: Apache-2.0
 
-'use strict';
-
 const is = require('./is');
 
 /**

lib/constructor.js

@@ -1,8 +1,6 @@
 // Copyright 2013 Lovell Fuller and others.
 // SPDX-License-Identifier: Apache-2.0
 
-'use strict';
-
 const util = require('node:util');
 const stream = require('node:stream');
 const is = require('./is');
@@ -205,6 +203,7 @@ const debuglog = util.debuglog('sharp');
  * @throws {Error} Invalid parameters
  */
 const Sharp = function (input, options) {
+  // biome-ignore lint/complexity/noArguments: constructor factory
   if (arguments.length === 1 && !is.defined(input)) {
     throw new Error('Invalid input');
   }

lib/index.d.ts

@@ -27,7 +27,7 @@
 
 /// <reference types="node" />
 
-import { Duplex } from 'stream';
+import type { Duplex } from 'node:stream';
 
 //#region Constructor functions
 

lib/index.js

@@ -1,8 +1,6 @@
 // Copyright 2013 Lovell Fuller and others.
 // SPDX-License-Identifier: Apache-2.0
 
-'use strict';
-
 const Sharp = require('./constructor');
 require('./input')(Sharp);
 require('./resize')(Sharp);

lib/input.js

@@ -1,8 +1,6 @@
 // Copyright 2013 Lovell Fuller and others.
 // SPDX-License-Identifier: Apache-2.0
 
-'use strict';
-
 const is = require('./is');
 const sharp = require('./sharp');
 
@@ -54,7 +52,7 @@ function _createInputDescriptor (input, inputOptions, containerOptions) {
   const inputDescriptor = {
     autoOrient: false,
     failOn: 'warning',
-    limitInputPixels: Math.pow(0x3FFF, 2),
+    limitInputPixels: 0x3FFF ** 2,
     ignoreIcc: false,
     unlimited: false,
     sequentialRead: true
@@ -150,7 +148,7 @@ function _createInputDescriptor (input, inputOptions, containerOptions) {
     if (is.defined(inputOptions.limitInputPixels)) {
       if (is.bool(inputOptions.limitInputPixels)) {
         inputDescriptor.limitInputPixels = inputOptions.limitInputPixels
-          ? Math.pow(0x3FFF, 2)
+          ? 0x3FFF ** 2
           : 0;
       } else if (is.integer(inputOptions.limitInputPixels) && is.inRange(inputOptions.limitInputPixels, 0, Number.MAX_SAFE_INTEGER)) {
         inputDescriptor.limitInputPixels = inputOptions.limitInputPixels;
@@ -513,7 +511,7 @@ function _createInputDescriptor (input, inputOptions, containerOptions) {
       }
     }
   } else if (is.defined(inputOptions)) {
-    throw new Error('Invalid input options ' + inputOptions);
+    throw new Error(`Invalid input options ${inputOptions}`);
   }
   return inputDescriptor;
 }
@@ -525,7 +523,7 @@ function _createInputDescriptor (input, inputOptions, containerOptions) {
  * @param {string} encoding - unused
  * @param {Function} callback
  */
-function _write (chunk, encoding, callback) {
+function _write (chunk, _encoding, callback) {
   /* istanbul ignore else */
   if (Array.isArray(this.options.input.buffer)) {
     /* istanbul ignore else */

lib/is.js

@@ -1,8 +1,6 @@
 // Copyright 2013 Lovell Fuller and others.
 // SPDX-License-Identifier: Apache-2.0
 
-'use strict';
-
 /**
  * Is this value defined and not null?
  * @private

lib/libvips.js

@@ -1,8 +1,6 @@
 // Copyright 2013 Lovell Fuller and others.
 // SPDX-License-Identifier: Apache-2.0
 
-'use strict';
-
 const { spawnSync } = require('node:child_process');
 const { createHash } = require('node:crypto');
 const semverCoerce = require('semver/functions/coerce');
@@ -96,7 +94,7 @@ const isUnsupportedNodeRuntime = () => {
 /* istanbul ignore next */
 const isEmscripten = () => {
   const { CC } = process.env;
-  return Boolean(CC && CC.endsWith('/emcc'));
+  return Boolean(CC?.endsWith('/emcc'));
 };
 
 const isRosetta = () => {

lib/operation.js

@@ -1,8 +1,6 @@
 // Copyright 2013 Lovell Fuller and others.
 // SPDX-License-Identifier: Apache-2.0
 
-'use strict';
-
 const is = require('./is');
 
 /**

lib/output.js

@@ -1,8 +1,6 @@
 // Copyright 2013 Lovell Fuller and others.
 // SPDX-License-Identifier: Apache-2.0
 
-'use strict';
-
 const path = require('node:path');
 const is = require('./is');
 const sharp = require('./sharp');

lib/resize.js

@@ -1,8 +1,6 @@
 // Copyright 2013 Lovell Fuller and others.
 // SPDX-License-Identifier: Apache-2.0
 
-'use strict';
-
 const is = require('./is');
 
 /**

lib/sharp.js

@@ -1,8 +1,6 @@
 // Copyright 2013 Lovell Fuller and others.
 // SPDX-License-Identifier: Apache-2.0
 
-'use strict';
-
 // Inspects the runtime environment and exports the relevant sharp.node binary
 
 const { familySync, versionSync } = require('detect-libc');
@@ -88,7 +86,7 @@ if (sharp) {
         `    Found ${libcFound}`,
         `    Requires ${libcRequires}`
       );
-    } catch (errEngines) {}
+    } catch (_errEngines) {}
   }
   if (isLinux && /\/snap\/core[0-9]{2}/.test(messages)) {
     help.push(

lib/utility.js

@@ -1,8 +1,6 @@
 // Copyright 2013 Lovell Fuller and others.
 // SPDX-License-Identifier: Apache-2.0
 
-'use strict';
-
 const events = require('node:events');
 const detectLibc = require('detect-libc');