challenge-algorithms-v2.0-s.../node_modules/yargs/build/lib/command.js

448 lines
19 KiB
JavaScript

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)) {
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)) {
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);
}