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ILOVEPIEILOVEPIE
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Created a utility that runs esbuild and SWC.
This supports a compat profile that works as far back as safari 8, maybe earlier. This also fixes some oversights in the load function that were hidden by the old reify implementation.
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‎buildLib/commandLineHelper.mjs

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

‎buildLib/esbuild-plugin-swc.mjs

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

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