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- import { assertNotStrictEqual, } from './typings/common-types.js';
- import { isPromise } from './utils/is-promise.js';
- import { applyMiddleware, commandMiddlewareFactory, } from './middleware.js';
- import { parseCommand } from './parse-command.js';
- import { isYargsInstance, } from './yargs-factory.js';
- import { maybeAsyncResult } from './utils/maybe-async-result.js';
- import whichModule from './utils/which-module.js';
- const DEFAULT_MARKER = /(^\*)|(^\$0)/;
- export class CommandInstance {
- constructor(usage, validation, globalMiddleware, shim) {
- this.requireCache = new Set();
- this.handlers = {};
- this.aliasMap = {};
- this.frozens = [];
- this.shim = shim;
- this.usage = usage;
- this.globalMiddleware = globalMiddleware;
- this.validation = validation;
- }
- addDirectory(dir, req, callerFile, opts) {
- opts = opts || {};
- if (typeof opts.recurse !== 'boolean')
- opts.recurse = false;
- if (!Array.isArray(opts.extensions))
- opts.extensions = ['js'];
- const parentVisit = typeof opts.visit === 'function' ? opts.visit : (o) => o;
- opts.visit = (obj, joined, filename) => {
- const visited = parentVisit(obj, joined, filename);
- if (visited) {
- if (this.requireCache.has(joined))
- return visited;
- else
- this.requireCache.add(joined);
- this.addHandler(visited);
- }
- return visited;
- };
- this.shim.requireDirectory({ require: req, filename: callerFile }, dir, opts);
- }
- addHandler(cmd, description, builder, handler, commandMiddleware, deprecated) {
- let aliases = [];
- const middlewares = commandMiddlewareFactory(commandMiddleware);
- handler = handler || (() => { });
- if (Array.isArray(cmd)) {
- if (isCommandAndAliases(cmd)) {
- [cmd, ...aliases] = cmd;
- }
- else {
- for (const command of cmd) {
- this.addHandler(command);
- }
- }
- }
- else if (isCommandHandlerDefinition(cmd)) {
- let command = Array.isArray(cmd.command) || typeof cmd.command === 'string'
- ? cmd.command
- : this.moduleName(cmd);
- if (cmd.aliases)
- command = [].concat(command).concat(cmd.aliases);
- this.addHandler(command, this.extractDesc(cmd), cmd.builder, cmd.handler, cmd.middlewares, cmd.deprecated);
- return;
- }
- else if (isCommandBuilderDefinition(builder)) {
- this.addHandler([cmd].concat(aliases), description, builder.builder, builder.handler, builder.middlewares, builder.deprecated);
- return;
- }
- if (typeof cmd === 'string') {
- const parsedCommand = parseCommand(cmd);
- aliases = aliases.map(alias => parseCommand(alias).cmd);
- let isDefault = false;
- const parsedAliases = [parsedCommand.cmd].concat(aliases).filter(c => {
- if (DEFAULT_MARKER.test(c)) {
- isDefault = true;
- return false;
- }
- return true;
- });
- if (parsedAliases.length === 0 && isDefault)
- parsedAliases.push('$0');
- if (isDefault) {
- parsedCommand.cmd = parsedAliases[0];
- aliases = parsedAliases.slice(1);
- cmd = cmd.replace(DEFAULT_MARKER, parsedCommand.cmd);
- }
- aliases.forEach(alias => {
- this.aliasMap[alias] = parsedCommand.cmd;
- });
- if (description !== false) {
- this.usage.command(cmd, description, isDefault, aliases, deprecated);
- }
- this.handlers[parsedCommand.cmd] = {
- original: cmd,
- description,
- handler,
- builder: builder || {},
- middlewares,
- deprecated,
- demanded: parsedCommand.demanded,
- optional: parsedCommand.optional,
- };
- if (isDefault)
- this.defaultCommand = this.handlers[parsedCommand.cmd];
- }
- }
- getCommandHandlers() {
- return this.handlers;
- }
- getCommands() {
- return Object.keys(this.handlers).concat(Object.keys(this.aliasMap));
- }
- hasDefaultCommand() {
- return !!this.defaultCommand;
- }
- runCommand(command, yargs, parsed, commandIndex, helpOnly, helpOrVersionSet) {
- const commandHandler = this.handlers[command] ||
- this.handlers[this.aliasMap[command]] ||
- this.defaultCommand;
- const currentContext = yargs.getInternalMethods().getContext();
- const parentCommands = currentContext.commands.slice();
- const isDefaultCommand = !command;
- if (command) {
- currentContext.commands.push(command);
- currentContext.fullCommands.push(commandHandler.original);
- }
- const builderResult = this.applyBuilderUpdateUsageAndParse(isDefaultCommand, commandHandler, yargs, parsed.aliases, parentCommands, commandIndex, helpOnly, helpOrVersionSet);
- return isPromise(builderResult)
- ? builderResult.then(result => this.applyMiddlewareAndGetResult(isDefaultCommand, commandHandler, result.innerArgv, currentContext, helpOnly, result.aliases, yargs))
- : this.applyMiddlewareAndGetResult(isDefaultCommand, commandHandler, builderResult.innerArgv, currentContext, helpOnly, builderResult.aliases, yargs);
- }
- applyBuilderUpdateUsageAndParse(isDefaultCommand, commandHandler, yargs, aliases, parentCommands, commandIndex, helpOnly, helpOrVersionSet) {
- const builder = commandHandler.builder;
- let innerYargs = yargs;
- if (isCommandBuilderCallback(builder)) {
- yargs.getInternalMethods().getUsageInstance().freeze();
- const builderOutput = builder(yargs.getInternalMethods().reset(aliases), helpOrVersionSet);
- if (isPromise(builderOutput)) {
- return builderOutput.then(output => {
- innerYargs = isYargsInstance(output) ? output : yargs;
- return this.parseAndUpdateUsage(isDefaultCommand, commandHandler, innerYargs, parentCommands, commandIndex, helpOnly);
- });
- }
- }
- else if (isCommandBuilderOptionDefinitions(builder)) {
- yargs.getInternalMethods().getUsageInstance().freeze();
- innerYargs = yargs.getInternalMethods().reset(aliases);
- Object.keys(commandHandler.builder).forEach(key => {
- innerYargs.option(key, builder[key]);
- });
- }
- return this.parseAndUpdateUsage(isDefaultCommand, commandHandler, innerYargs, parentCommands, commandIndex, helpOnly);
- }
- parseAndUpdateUsage(isDefaultCommand, commandHandler, innerYargs, parentCommands, commandIndex, helpOnly) {
- if (isDefaultCommand)
- innerYargs.getInternalMethods().getUsageInstance().unfreeze(true);
- if (this.shouldUpdateUsage(innerYargs)) {
- innerYargs
- .getInternalMethods()
- .getUsageInstance()
- .usage(this.usageFromParentCommandsCommandHandler(parentCommands, commandHandler), commandHandler.description);
- }
- const innerArgv = innerYargs
- .getInternalMethods()
- .runYargsParserAndExecuteCommands(null, undefined, true, commandIndex, helpOnly);
- return isPromise(innerArgv)
- ? innerArgv.then(argv => ({
- aliases: innerYargs.parsed.aliases,
- innerArgv: argv,
- }))
- : {
- aliases: innerYargs.parsed.aliases,
- innerArgv: innerArgv,
- };
- }
- shouldUpdateUsage(yargs) {
- return (!yargs.getInternalMethods().getUsageInstance().getUsageDisabled() &&
- yargs.getInternalMethods().getUsageInstance().getUsage().length === 0);
- }
- usageFromParentCommandsCommandHandler(parentCommands, commandHandler) {
- const c = DEFAULT_MARKER.test(commandHandler.original)
- ? commandHandler.original.replace(DEFAULT_MARKER, '').trim()
- : commandHandler.original;
- const pc = parentCommands.filter(c => {
- return !DEFAULT_MARKER.test(c);
- });
- pc.push(c);
- return `$0 ${pc.join(' ')}`;
- }
- handleValidationAndGetResult(isDefaultCommand, commandHandler, innerArgv, currentContext, aliases, yargs, middlewares, positionalMap) {
- if (!yargs.getInternalMethods().getHasOutput()) {
- const validation = yargs
- .getInternalMethods()
- .runValidation(aliases, positionalMap, yargs.parsed.error, isDefaultCommand);
- innerArgv = maybeAsyncResult(innerArgv, result => {
- validation(result);
- return result;
- });
- }
- if (commandHandler.handler && !yargs.getInternalMethods().getHasOutput()) {
- yargs.getInternalMethods().setHasOutput();
- const populateDoubleDash = !!yargs.getOptions().configuration['populate--'];
- yargs
- .getInternalMethods()
- .postProcess(innerArgv, populateDoubleDash, false, false);
- innerArgv = applyMiddleware(innerArgv, yargs, middlewares, false);
- innerArgv = maybeAsyncResult(innerArgv, result => {
- const handlerResult = commandHandler.handler(result);
- return isPromise(handlerResult)
- ? handlerResult.then(() => result)
- : result;
- });
- if (!isDefaultCommand) {
- yargs.getInternalMethods().getUsageInstance().cacheHelpMessage();
- }
- if (isPromise(innerArgv) &&
- !yargs.getInternalMethods().hasParseCallback()) {
- innerArgv.catch(error => {
- try {
- yargs.getInternalMethods().getUsageInstance().fail(null, error);
- }
- catch (_err) {
- }
- });
- }
- }
- if (!isDefaultCommand) {
- currentContext.commands.pop();
- currentContext.fullCommands.pop();
- }
- return innerArgv;
- }
- applyMiddlewareAndGetResult(isDefaultCommand, commandHandler, innerArgv, currentContext, helpOnly, aliases, yargs) {
- let positionalMap = {};
- if (helpOnly)
- return innerArgv;
- if (!yargs.getInternalMethods().getHasOutput()) {
- positionalMap = this.populatePositionals(commandHandler, innerArgv, currentContext, yargs);
- }
- const middlewares = this.globalMiddleware
- .getMiddleware()
- .slice(0)
- .concat(commandHandler.middlewares);
- const maybePromiseArgv = applyMiddleware(innerArgv, yargs, middlewares, true);
- return isPromise(maybePromiseArgv)
- ? maybePromiseArgv.then(resolvedInnerArgv => this.handleValidationAndGetResult(isDefaultCommand, commandHandler, resolvedInnerArgv, currentContext, aliases, yargs, middlewares, positionalMap))
- : this.handleValidationAndGetResult(isDefaultCommand, commandHandler, maybePromiseArgv, currentContext, aliases, yargs, middlewares, positionalMap);
- }
- populatePositionals(commandHandler, argv, context, yargs) {
- argv._ = argv._.slice(context.commands.length);
- const demanded = commandHandler.demanded.slice(0);
- const optional = commandHandler.optional.slice(0);
- const positionalMap = {};
- this.validation.positionalCount(demanded.length, argv._.length);
- while (demanded.length) {
- const demand = demanded.shift();
- this.populatePositional(demand, argv, positionalMap);
- }
- while (optional.length) {
- const maybe = optional.shift();
- this.populatePositional(maybe, argv, positionalMap);
- }
- argv._ = context.commands.concat(argv._.map(a => '' + a));
- this.postProcessPositionals(argv, positionalMap, this.cmdToParseOptions(commandHandler.original), yargs);
- return positionalMap;
- }
- populatePositional(positional, argv, positionalMap) {
- const cmd = positional.cmd[0];
- if (positional.variadic) {
- positionalMap[cmd] = argv._.splice(0).map(String);
- }
- else {
- if (argv._.length)
- positionalMap[cmd] = [String(argv._.shift())];
- }
- }
- cmdToParseOptions(cmdString) {
- const parseOptions = {
- array: [],
- default: {},
- alias: {},
- demand: {},
- };
- const parsed = parseCommand(cmdString);
- parsed.demanded.forEach(d => {
- const [cmd, ...aliases] = d.cmd;
- if (d.variadic) {
- parseOptions.array.push(cmd);
- parseOptions.default[cmd] = [];
- }
- parseOptions.alias[cmd] = aliases;
- parseOptions.demand[cmd] = true;
- });
- parsed.optional.forEach(o => {
- const [cmd, ...aliases] = o.cmd;
- if (o.variadic) {
- parseOptions.array.push(cmd);
- parseOptions.default[cmd] = [];
- }
- parseOptions.alias[cmd] = aliases;
- });
- return parseOptions;
- }
- postProcessPositionals(argv, positionalMap, parseOptions, yargs) {
- const options = Object.assign({}, yargs.getOptions());
- options.default = Object.assign(parseOptions.default, options.default);
- for (const key of Object.keys(parseOptions.alias)) {
- options.alias[key] = (options.alias[key] || []).concat(parseOptions.alias[key]);
- }
- options.array = options.array.concat(parseOptions.array);
- options.config = {};
- const unparsed = [];
- Object.keys(positionalMap).forEach(key => {
- positionalMap[key].map(value => {
- if (options.configuration['unknown-options-as-args'])
- options.key[key] = true;
- unparsed.push(`--${key}`);
- unparsed.push(value);
- });
- });
- if (!unparsed.length)
- return;
- const config = Object.assign({}, options.configuration, {
- 'populate--': false,
- });
- const parsed = this.shim.Parser.detailed(unparsed, Object.assign({}, options, {
- configuration: config,
- }));
- if (parsed.error) {
- yargs
- .getInternalMethods()
- .getUsageInstance()
- .fail(parsed.error.message, parsed.error);
- }
- else {
- const positionalKeys = Object.keys(positionalMap);
- Object.keys(positionalMap).forEach(key => {
- positionalKeys.push(...parsed.aliases[key]);
- });
- Object.keys(parsed.argv).forEach(key => {
- if (positionalKeys.includes(key)) {
- if (!positionalMap[key])
- positionalMap[key] = parsed.argv[key];
- if (!this.isInConfigs(yargs, key) &&
- !this.isDefaulted(yargs, key) &&
- Object.prototype.hasOwnProperty.call(argv, key) &&
- Object.prototype.hasOwnProperty.call(parsed.argv, key) &&
- (Array.isArray(argv[key]) || Array.isArray(parsed.argv[key]))) {
- argv[key] = [].concat(argv[key], parsed.argv[key]);
- }
- else {
- argv[key] = parsed.argv[key];
- }
- }
- });
- }
- }
- isDefaulted(yargs, key) {
- const { default: defaults } = yargs.getOptions();
- return (Object.prototype.hasOwnProperty.call(defaults, key) ||
- Object.prototype.hasOwnProperty.call(defaults, this.shim.Parser.camelCase(key)));
- }
- isInConfigs(yargs, key) {
- const { configObjects } = yargs.getOptions();
- return (configObjects.some(c => Object.prototype.hasOwnProperty.call(c, key)) ||
- configObjects.some(c => Object.prototype.hasOwnProperty.call(c, this.shim.Parser.camelCase(key))));
- }
- runDefaultBuilderOn(yargs) {
- if (!this.defaultCommand)
- return;
- if (this.shouldUpdateUsage(yargs)) {
- const commandString = DEFAULT_MARKER.test(this.defaultCommand.original)
- ? this.defaultCommand.original
- : this.defaultCommand.original.replace(/^[^[\]<>]*/, '$0 ');
- yargs
- .getInternalMethods()
- .getUsageInstance()
- .usage(commandString, this.defaultCommand.description);
- }
- const builder = this.defaultCommand.builder;
- if (isCommandBuilderCallback(builder)) {
- return builder(yargs, true);
- }
- else if (!isCommandBuilderDefinition(builder)) {
- Object.keys(builder).forEach(key => {
- yargs.option(key, builder[key]);
- });
- }
- return undefined;
- }
- moduleName(obj) {
- const mod = whichModule(obj);
- if (!mod)
- throw new Error(`No command name given for module: ${this.shim.inspect(obj)}`);
- return this.commandFromFilename(mod.filename);
- }
- commandFromFilename(filename) {
- return this.shim.path.basename(filename, this.shim.path.extname(filename));
- }
- extractDesc({ describe, description, desc }) {
- for (const test of [describe, description, desc]) {
- if (typeof test === 'string' || test === false)
- return test;
- assertNotStrictEqual(test, true, this.shim);
- }
- return false;
- }
- freeze() {
- this.frozens.push({
- handlers: this.handlers,
- aliasMap: this.aliasMap,
- defaultCommand: this.defaultCommand,
- });
- }
- unfreeze() {
- const frozen = this.frozens.pop();
- assertNotStrictEqual(frozen, undefined, this.shim);
- ({
- handlers: this.handlers,
- aliasMap: this.aliasMap,
- defaultCommand: this.defaultCommand,
- } = frozen);
- }
- reset() {
- this.handlers = {};
- this.aliasMap = {};
- this.defaultCommand = undefined;
- this.requireCache = new Set();
- return this;
- }
- }
- export function command(usage, validation, globalMiddleware, shim) {
- return new CommandInstance(usage, validation, globalMiddleware, shim);
- }
- export function isCommandBuilderDefinition(builder) {
- return (typeof builder === 'object' &&
- !!builder.builder &&
- typeof builder.handler === 'function');
- }
- function isCommandAndAliases(cmd) {
- return cmd.every(c => typeof c === 'string');
- }
- export function isCommandBuilderCallback(builder) {
- return typeof builder === 'function';
- }
- function isCommandBuilderOptionDefinitions(builder) {
- return typeof builder === 'object';
- }
- export function isCommandHandlerDefinition(cmd) {
- return typeof cmd === 'object' && !Array.isArray(cmd);
- }
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