Created a utility that runs esbuild and SWC.

This supports a compat profile that works as far back as safari 8, maybe earlier.

buildLib/commandLineHelper.mjs

@@ -0,0 +1,230 @@
+import process from 'node:process';
+
+export default function createCommandLineArgumentsHandler(validArguments) {
+    const validTypes = ['json', 'string', 'number', 'boolean'];
+    const argumentInfo = {};
+    const shortArgsMap = {};
+    const defaultTemplate = {};
+    {
+        const inputKeys = Object.keys(validArguments);
+        for(let i = 0; i < inputKeys.length; i++) {
+            const key = inputKeys[i];
+            const firstCode = key[0].charCodeAt(0);
+            if((firstCode < 65 || firstCode > 90) && (firstCode < 97 || firstCode > 122))
+                continue; 
+            const argument = validArguments[key];
+            if(argument.type && validTypes.includes(argument.type)){
+                argumentInfo[key] = {};
+                argumentInfo[key].type = argument.type;
+                argumentInfo[key].hasShortKey = argument.shortKey??(argument.type === 'boolean');
+                argumentInfo[key].takesParameter = (argument.type !== 'boolean'? true : argument.takesParameter??false);
+                argumentInfo[key].acceptsPropertySyntax = argument.propertySyntax;
+                if(argument.default){
+                    defaultTemplate[key] = argument.default;
+                }
+            }
+        }
+        validArguments = null;
+    }
+    const argumentKeys = Object.keys(argumentInfo);
+    for(let i = 0; i < argumentKeys.length; i++) {
+        const key = argumentKeys[i];
+        if(!argumentInfo[key].hasShortKey)
+            continue;
+        let shortKey = null;
+        let shortKeyCandidate = key[0].toLowerCase();
+        for(let j = 0; j < 26; j++){
+            if(!shortArgsMap[shortKeyCandidate]){
+                shortArgsMap[shortKeyCandidate] = key;
+                shortKey = shortKeyCandidate;
+                break;
+            }else if(!shortArgsMap[shortKeyCandidate.toUpperCase()]){
+                shortArgsMap[shortKeyCandidate.toUpperCase()] = key;
+                shortKey = shortKeyCandidate.toUpperCase();
+                break;
+            }
+            shortKeyCandidate = String.fromCharCode(((shortKeyCandidate.charCodeAt(0)-95)%26)+96);
+            console.log(shortKeyCandidate);
+        }
+        if(!shortKey)
+            throw new Error(`Could not assign short key for argument: ${key}`);
+    }
+
+    function checkForSplitValue(value, args, index){
+        if(value[0] == "'"){
+            return value[value.length-1] !== "'";
+        }else if(value[0] == '"'){
+            return value[value.length-1] !== '"';
+        }
+        return false;
+    }
+
+    function parseBooleanArgument(key, args, index, options, value){
+        if(value !== null && !argumentInfo[key].takesParameter){
+            throw new Error(`Invalid option: ${key}`);
+        }else if(value === null && !argumentInfo[key].takesParameter){
+            options[key] = true;
+            return 0;
+        }else if(argumentInfo[key].takesParameter){
+            let increment = 0;
+            if(value === null && args.length > index+1){
+                value = args[index+1];
+                increment = 1;
+            }else if(value === null){
+                throw new Error(`Invalid option: ${key}`);
+            }else if(checkForSplitValue(value)){
+                do{
+                    if(args.length <= index+increment)
+                        throw new Error(`Unclosed option value: ${key}`);
+                    value += ' ' + args[index+1];
+                    increment++;
+                }while(checkForSplitValue(value));
+                value = value.slice(1,-1);
+            }
+            options[key] = value;
+            return increment;
+        }else{
+            throw new Error(`Invalid option: ${key}`);
+        }
+    }
+
+    function parseNumberArgument(key, args, index, options, value){
+        let increment = 0;
+        if(value === null && args.length > index+1){
+            value = args[index+1];
+            increment = 1;
+        }
+        if(value === null)
+            throw new Error(`Invalid option: ${key}`);
+        if(checkForSplitValue(value))
+            throw new Error(`Unclosed option value: ${key}`);
+        if(value.startsWith("0x")){
+            options[key] = parseInt(value.slice(2), 16);
+        }else if(value.startsWith("0o")){
+            options[key] = parseInt(value.slice(2), 8);
+        }else if(value.startsWith("0b")){
+            options[key] = parseInt(value.slice(2), 2);
+        }else{
+            if(value.startsWith("0d")){
+                options[key]=parseInt(value.slice(2),10);
+            } else options[key] = parseFloat(value);
+        }
+        return increment;
+    }
+
+    function parseStringArgument(key, args, index, options, value){
+        let increment = 0;
+        if(value === null && args.length > index+1){
+            value = args[index+1];
+            increment = 1;
+        }
+        if(value === null)
+            throw new Error(`Invalid option: ${key}`);
+        if(checkForSplitValue(value)){
+            do{
+                if(args.length <= index+increment)
+                    throw new Error(`Unclosed option value: ${key}`);
+                value += ' ' + args[index+1];
+                increment++;
+            }while(checkForSplitValue(value));
+            value = value.slice(1,-1);
+        }
+        options[key] = value;
+        return increment;
+    }
+
+    function parseJsonArgument(key, args, index, options, value){
+        let increment = 0;
+        if(value === null && args.length > index+1){
+            value = args[index+1];
+            increment = 1;
+        }
+        if(value === null)
+            throw new Error(`Invalid option: ${key}`);
+        if(checkForSplitValue(value)){
+            do{
+                if(args.length <= index+increment)
+                    throw new Error(`Unclosed option value: ${key}`);
+                value += ' ' + args[index+1];
+                increment++;
+            }while(checkForSplitValue(value));
+            value = value.slice(1,-1);
+        }
+        options[key] = JSON.parse(value.replaceAll("'", "\""));
+        return increment;
+    }
+
+
+    return function() {
+        const args = process.argv.slice(2);
+        const parsedArgs = {args: [], options: Object.assign({}, defaultTemplate)};
+
+        for (let i = 0; i < args.length; i++) {
+            const arg = args[i];
+            if (arg.startsWith('--')) {
+                const longArg = arg.slice(2);
+                let key = longArg;
+                let value = null;
+                if (!argumentInfo[key.replace(/-/g, '_')]) {
+                    let splitproperty = longArg.split("=");
+                    if (splitproperty.length > 1) {
+                        key = splitproperty[0];
+                        value = splitproperty[1];
+                    }else{
+                        throw new Error(`Invalid option: ${key}`);
+                    }
+                    if(!argumentInfo[key])
+                        throw new Error(`Invalid option: ${key}`);
+                    if(!argumentInfo[key].acceptsPropertySyntax)
+                        throw new Error(`Invalid property syntax for option: ${key}`);
+                }
+                if(key.indexOf('_') !== -1)
+                    throw new Error(`Invalid option: ${key}`);
+                key = key.replace(/-/g, '_');
+                switch(argumentInfo[key].type) {
+                    case 'boolean':
+                        i += parseBooleanArgument(key, args, i, parsedArgs.options, value);
+                        break;
+                    case 'number':
+                        i += parseNumberArgument(key, args, i, parsedArgs.options, value);
+                        break;
+                    case 'string':
+                        i += parseStringArgument(key, args, i, parsedArgs.options, value);
+                        break;
+                    case 'json':
+                        i += parseJsonArgument(key, args, i, parsedArgs.options, value);
+                        break;
+                }
+            } else if (arg.startsWith('-')) {
+                const shortArg = arg.slice(1);
+                for (let j = 0; j < shortArg.length; j++) {
+                    const key = shortArgsMap[shortArg[j]];
+                    if (!key) {
+                        throw new Error(`Invalid option: ${shortArg[j]}`);
+                    }
+                    if(argumentInfo[key].type === 'boolean'){
+                        i += parseBooleanArgument(key, args, i, parsedArgs.options, null);
+                    }else if(j > 0 || shortArg.length > 1){
+                        throw new Error(`Invalid option: ${shortArg}`);
+                    }else{
+                        switch(argumentInfo[key].type) {
+                            case 'number':
+                                i += parseNumberArgument(key, args, i, parsedArgs.options, null);
+                                break;
+                            case 'string':
+                                i += parseStringArgument(key, args, i, parsedArgs.options, null);
+                                break;
+                            case 'json':
+                                i += parseJsonArgument(key, args, i, parsedArgs.options, null);
+                                break;
+                        }
+                    }
+                }
+            }else{
+                parsedArgs.args.push(arg);
+            }
+        }
+
+        return parsedArgs;
+    }
+};

buildLib/esbuild-plugin-swc.mjs

@@ -0,0 +1,85 @@
+/*
+This file's license:
+
+MIT License
+
+Copyright (c) 2021 sanyuan et al.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+import { transform, transformSync } from '@swc/core';
+import path from 'node:path';
+import process from 'node:process';
+import fs from 'node:fs/promises';
+
+function assignDeep(target, source) {
+    for (const key in source) {
+        if (source[key] instanceof Object && !(source[key] instanceof Function)) {
+            if (!target[key]) {
+                target[key] = {};
+            }
+            assignDeep(target[key], source[key]);
+        } else {
+            target[key] = source[key];
+        }
+    }
+    return target;
+}
+
+export default function swcPlugin(options, isAsync) {
+    options = options ?? {};
+    isAsync = isAsync ?? true;
+    return {
+        name: 'esbuild:swc',
+        setup(builder) {
+            builder.onResolve({ filter: /\.([tj]s)$/ }, (args) => {
+                const fullPath = path.resolve(args.resolveDir, args.path);
+                return {
+                    path: fullPath,
+                };
+            });
+            builder.onLoad({ filter: /\.([tj]s)$/ }, async (args) => {
+                const code = await fs.readFile(args.path, 'utf-8');
+                const isTS = args.path.endsWith('.ts');
+                const initialOptions = {
+                    jsc: {
+                        parser: {
+                            syntax: isTS ? 'typescript' : 'ecmascript',
+                        }
+                    },
+                    filename: args.path,
+                    sourceMaps: true,
+                    sourceFileName: path.relative(options.root,args.path)
+                };
+                const finalOptions = assignDeep(assignDeep({}, initialOptions), options);
+                let result;
+                if (isAsync) {
+                    result = await transform(code, finalOptions);
+                }else{
+                    result = transformSync(code, finalOptions);
+                }
+                return {
+                    contents: result.code+(finalOptions.sourceMaps?`\n//# sourceMappingURL=data:application/json;base64,${Buffer.from(result.map).toString('base64')}`:''),
+                    loader: 'js'
+                };
+            });
+        }
+    }
+}