Add support for task options

Added support for customizing processors in `scripts.js` (esbuild), `styles.js` (node-sass, postcss, autoprefixer), and `svgs.js` (svg-mixer), via arguments for the exported task functions.

Added:
- Constants to decouple shared default options, options for development, and options for production.
- Constants to export default options for development and production as an array of arguments to pass to task functions.

Changed:
- watch.js to apply development args to tasks

build/tasks/concats.js

@@ -9,6 +9,8 @@ import { basename } from 'node:path';
 /**
  * Concatenates groups of files.
  *
+ * @todo Add support for minification.
+ *
  * @async
  * @return {Promise}
  */

build/tasks/scripts.js

@@ -5,13 +5,54 @@ import template from '../utils/template.js';
 import esbuild from 'esbuild';
 import { basename } from 'node:path';
 
+/**
+ * @const {object} defaultESBuildOptions     - The default shared ESBuild options.
+ * @const {object} developmentESBuildOptions - The predefined ESBuild options for development.
+ * @const {object} productionESBuildOptions  - The predefined ESBuild options for production.
+ */
+export const defaultESBuildOptions = {
+    bundle: true,
+    color: true,
+    sourcemap: true,
+    target: [
+        'es2015',
+    ],
+};
+export const developmentESBuildOptions = Object.assign({}, defaultESBuildOptions);
+export const productionESBuildOptions  = Object.assign({}, defaultESBuildOptions, {
+    logLevel: 'warning',
+    minify: true,
+});
+
+/**
+ * @const {object} developmentScriptsArgs - The predefined `compileScripts()` options for development.
+ * @const {object} productionScriptsArgs  - The predefined `compileScripts()` options for production.
+ */
+export const developmentScriptsArgs = [
+    developmentESBuildOptions,
+];
+export const productionScriptsArgs  = [
+    productionESBuildOptions,
+];
+
 /**
  * Bundles and minifies main JavaScript files.
  *
  * @async
+ * @param  {object} [esBuildOptions=null] - Customize the ESBuild build API options.
+ *     If `null`, default production options are used.
  * @return {Promise}
  */
-export default async function compileScripts() {
+export default async function compileScripts(esBuildOptions = null) {
+    if (esBuildOptions == null) {
+        esBuildOptions = productionESBuildOptions;
+    } else if (
+        esBuildOptions !== developmentESBuildOptions &&
+        esBuildOptions !== productionESBuildOptions
+    ) {
+        esBuildOptions = Object.assign({}, defaultESBuildOptions, esBuildOptions);
+    }
+
     loconfig.tasks.scripts.forEach(async ({
         includes,
         outdir = '',
@@ -35,19 +76,11 @@ export default async function compileScripts() {
                 );
             }
 
-            await esbuild.build({
+            await esbuild.build(Object.assign({}, esBuildOptions, {
                 entryPoints: includes,
-                bundle: true,
-                minify: true,
-                sourcemap: true,
-                color: true,
-                logLevel: 'error',
-                target: [
-                    'es2015',
-                ],
                 outdir,
-                outfile
+                outfile,
-            });
+            }));
 
             message(`${filename} compiled`, 'success', timeLabel);
         } catch (err) {

build/tasks/styles.js

@@ -1,7 +1,7 @@
 import loconfig from '../../loconfig.json';
 import message from '../utils/message.js';
 import notification from '../utils/notification.js';
-import postcss, { autoprefixer } from '../utils/postcss.js';
+import postcss, { pluginsMap as postcssPluginsMap } from '../utils/postcss.js';
 import template from '../utils/template.js';
 import { writeFile } from 'node:fs/promises';
 import { basename } from 'node:path';
@@ -10,16 +10,91 @@ import sass from 'node-sass';
 
 const sassRender = promisify(sass.render);
 
-const isPostCSSAvailable = (postcss && autoprefixer);
 let postcssProcessor;
 
+/**
+ * @const {object} defaultSassOptions     - The default shared Sass options.
+ * @const {object} developmentSassOptions - The predefined Sass options for development.
+ * @const {object} productionSassOptions  - The predefined Sass options for production.
+ */
+export const defaultSassOptions = {
+    omitSourceMapUrl: true,
+    sourceMap: true,
+    sourceMapContents: true,
+};
+export const developmentSassOptions = Object.assign({}, defaultSassOptions, {
+    outputStyle: 'expanded',
+});
+export const productionSassOptions = Object.assign({}, defaultSassOptions, {
+    outputStyle: 'compressed',
+});
+
+/**
+ * @const {object} defaultPostCSSOptions     - The default shared PostCSS options.
+ * @const {object} developmentPostCSSOptions - The predefined PostCSS options for development.
+ * @const {object} productionPostCSSOptions  - The predefined PostCSS options for production.
+ */
+export const defaultPostCSSOptions = {
+    processor: {
+        map: {
+            annotation: false,
+            inline: false,
+            sourcesContent: true,
+        },
+    },
+};
+export const developmentPostCSSOptions = Object.assign({}, defaultPostCSSOptions);
+export const productionPostCSSOptions  = Object.assign({}, defaultPostCSSOptions);
+
+/**
+ * @const {object} developmentStylesArgs - The predefined `compileStyles()` options for development.
+ * @const {object} productionStylesArgs  - The predefined `compileStyles()` options for production.
+ */
+export const developmentStylesArgs = [
+    developmentSassOptions,
+    developmentPostCSSOptions,
+];
+export const productionStylesArgs  = [
+    productionSassOptions,
+    productionPostCSSOptions,
+];
+
 /**
  * Compiles and minifies main Sass files to CSS.
  *
+ * @todo Add deep merge of `postcssOptions` to better support customization
+ *     of default processor options.
+ *
  * @async
+ * @param  {object}         [sassOptions=null]    - Customize the Sass render API options.
+ *     If `null`, default production options are used.
+ * @param  {object|boolean} [postcssOptions=null] - Customize the PostCSS processor API options.
+ *     If `null`, default production options are used.
+ *     If `false`, PostCSS processing will be ignored.
  * @return {Promise}
  */
-export default async function compileStyles() {
+export default async function compileStyles(sassOptions = null, postcssOptions = null) {
+    if (sassOptions == null) {
+        sassOptions = productionSassOptions;
+    } else if (
+        sassOptions !== developmentSassOptions &&
+        sassOptions !== productionSassOptions
+    ) {
+        sassOptions = Object.assign({}, defaultSassOptions, sassOptions);
+    }
+
+    if (postcss) {
+        if (postcssOptions == null) {
+            postcssOptions = productionPostCSSOptions;
+        } else if (
+            postcssOptions !== false &&
+            postcssOptions !== developmentSassOptions &&
+            postcssOptions !== productionSassOptions
+        ) {
+            postcssOptions = Object.assign({}, defaultPostCSSOptions, postcssOptions);
+        }
+    }
+
     loconfig.tasks.styles.forEach(async ({
         infile,
         outfile
@@ -33,31 +108,26 @@ export default async function compileStyles() {
             infile  = template(infile);
             outfile = template(outfile);
 
-            let result = await sassRender({
+            let result = await sassRender(Object.assign({}, sassOptions, {
                 file: infile,
-                omitSourceMapUrl: true,
                 outFile: outfile,
-                outputStyle: 'compressed',
+            }));
-                sourceMap: true,
-                sourceMapContents: true
-            });
 
-            if (isPostCSSAvailable) {
+            if (postcss && postcssOptions) {
                 if (typeof postcssProcessor === 'undefined') {
-                    postcssProcessor = postcss([
+                    postcssProcessor = createPostCSSProcessor(
-                        autoprefixer,
+                        postcssPluginsMap,
-                    ]);
+                        postcssOptions
+                    );
                 }
 
-                result = await postcssProcessor.process(result.css, {
+                result = await postcssProcessor.process(
-                    from: outfile,
+                    result.css,
-                    to: outfile,
+                    Object.assign({}, postcssOptions.processor, {
-                    map: {
+                        from: outfile,
-                        annotation: false,
+                        to: outfile,
-                        inline: false,
+                    })
-                        sourcesContent: true
+                );
-                    }
-                });
 
                 if (result.warnings) {
                     const warnings = result.warnings();
@@ -112,3 +182,32 @@ export default async function compileStyles() {
         }
     });
 };
+
+/**
+ * Creates a PostCSS Processor with the given plugins and options.
+ *
+ * @param {array<(function|object)>|object<string, (function|object)>} pluginsListOrMap -
+ *     A list or map of plugins.
+ *     If a map of plugins, the plugin name looks up `options`.
+ * @param {object}              options - The PostCSS options.
+ */
+function createPostCSSProcessor(pluginsListOrMap, options)
+{
+    let plugins;
+
+    if (Array.isArray(pluginsListOrMap)) {
+        plugins = pluginsListOrMap;
+    } else {
+        plugins = [];
+
+        for (let [ name, plugin ] of Object.entries(pluginsListOrMap)) {
+            if (name in options) {
+                plugin = plugin[name](options[name]);
+            }
+
+            plugins.push(plugin);
+        }
+    }
+
+    return postcss(plugins);
+}

build/tasks/svgs.js

@@ -5,13 +5,48 @@ import template from '../utils/template.js';
 import { basename } from 'node:path';
 import mixer from 'svg-mixer';
 
+/**
+ * @const {object} defaultMixerOptions     - The default shared Mixer options.
+ * @const {object} developmentMixerOptions - The predefined Mixer options for development.
+ * @const {object} productionMixerOptions  - The predefined Mixer options for production.
+ */
+export const defaultMixerOptions = {
+    spriteConfig: {
+        usages: false,
+    },
+};
+export const developmentMixerOptions = Object.assign({}, defaultMixerOptions);
+export const productionMixerOptions  = Object.assign({}, defaultMixerOptions);
+
+/**
+ * @const {object} developmentSVGsArgs - The predefined `compileSVGs()` options for development.
+ * @const {object} productionSVGsArgs  - The predefined `compileSVGs()` options for production.
+ */
+export const developmentSVGsArgs = [
+    developmentMixerOptions,
+];
+export const productionSVGsArgs  = [
+    productionMixerOptions,
+];
+
 /**
  * Generates and transforms SVG spritesheets.
  *
  * @async
+ * @param  {object} [mixerOptions=null] - Customize the Mixer API options.
+ *     If `null`, default production options are used.
  * @return {Promise}
  */
-export default async function compileSVGs() {
+export default async function compileSVGs(mixerOptions = null) {
+    if (mixerOptions == null) {
+        mixerOptions = productionMixerOptions;
+    } else if (
+        mixerOptions !== developmentMixerOptions &&
+        mixerOptions !== productionMixerOptions
+    ) {
+        mixerOptions = Object.assign({}, defaultMixerOptions, mixerOptions);
+    }
+
     loconfig.tasks.svgs.forEach(async ({
         includes,
         outfile
@@ -25,11 +60,7 @@ export default async function compileSVGs() {
             includes = includes.map((path) => template(path));
             outfile  = template(outfile);
 
-            const result = await mixer(includes, {
+            const result = await mixer(includes, mixerOptions);
-                spriteConfig: {
-                    usages: false
-                }
-            });
 
             await result.write(outfile);
 

build/utils/postcss.js

@@ -17,9 +17,12 @@ try {
 }
 
 export default postcss;
-export const plugins = [
+export const pluginsList = [
     autoprefixer,
 ];
+export const pluginsMap = {
+    'autoprefixer': autoprefixer,
+};
 export {
     autoprefixer
 };

build/watch.js

@@ -1,8 +1,8 @@
 import loconfig from '../loconfig.json';
 import concatFiles from './tasks/concats.js';
-import compileScripts from './tasks/scripts.js';
+import compileScripts, { developmentScriptsArgs } from './tasks/scripts.js';
-import compileStyles from './tasks/styles.js' ;
+import compileStyles, { developmentStylesArgs } from './tasks/styles.js' ;
-import compileSVGs from './tasks/svgs.js';
+import compileSVGs, { developmentSVGsArgs } from './tasks/svgs.js';
 import template from './utils/template.js';
 import server from 'browser-sync';
 import { join } from 'node:path';
@@ -30,9 +30,9 @@ server.init(serverConfig);
 // Build scripts, compile styles, concat files,
 // and generate spritesheets on first hit
 concatFiles();
-compileScripts();
+compileScripts(...developmentScriptsArgs);
-compileStyles();
+compileStyles(...developmentStylesArgs);
-compileSVGs();
+compileSVGs(...developmentSVGsArgs);
 
 // and call any methods on it.
 server.watch(
@@ -50,7 +50,7 @@ server.watch(
         join(paths.scripts.src, '**/*.js'),
     ]
 ).on('change', () => {
-    compileScripts();
+    compileScripts(...developmentScriptsArgs);
 });
 
 // Watch concats
@@ -69,7 +69,7 @@ server.watch(
         join(paths.styles.src, '**/*.scss'),
     ]
 ).on('change', () => {
-    compileStyles();
+    compileStyles(...developmentStylesArgs);
 });
 
 // Watch svgs
@@ -78,5 +78,5 @@ server.watch(
         join(paths.svgs.src, '*.svg'),
     ]
 ).on('change', () => {
-    compileSVGs();
+    compileSVGs(...developmentSVGsArgs);
 });