source: trip-planner-front/node_modules/yargs/build/lib/command.js@ 188ee53

Last change on this file since 188ee53 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

initial commit
  • Property mode set to 100644
File size: 17.7 KB
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1import { assertNotStrictEqual, } from './typings/common-types.js';
2import { isPromise } from './utils/is-promise.js';
3import { applyMiddleware, commandMiddlewareFactory, } from './middleware.js';
4import { parseCommand } from './parse-command.js';
5import { isYargsInstance, } from './yargs-factory.js';
6import { maybeAsyncResult } from './utils/maybe-async-result.js';
7import whichModule from './utils/which-module.js';
8const DEFAULT_MARKER = /(^\*)|(^\$0)/;
9export class CommandInstance {
10 constructor(usage, validation, globalMiddleware, shim) {
11 this.requireCache = new Set();
12 this.handlers = {};
13 this.aliasMap = {};
14 this.frozens = [];
15 this.shim = shim;
16 this.usage = usage;
17 this.globalMiddleware = globalMiddleware;
18 this.validation = validation;
19 }
20 addDirectory(dir, req, callerFile, opts) {
21 opts = opts || {};
22 if (typeof opts.recurse !== 'boolean')
23 opts.recurse = false;
24 if (!Array.isArray(opts.extensions))
25 opts.extensions = ['js'];
26 const parentVisit = typeof opts.visit === 'function' ? opts.visit : (o) => o;
27 opts.visit = (obj, joined, filename) => {
28 const visited = parentVisit(obj, joined, filename);
29 if (visited) {
30 if (this.requireCache.has(joined))
31 return visited;
32 else
33 this.requireCache.add(joined);
34 this.addHandler(visited);
35 }
36 return visited;
37 };
38 this.shim.requireDirectory({ require: req, filename: callerFile }, dir, opts);
39 }
40 addHandler(cmd, description, builder, handler, commandMiddleware, deprecated) {
41 let aliases = [];
42 const middlewares = commandMiddlewareFactory(commandMiddleware);
43 handler = handler || (() => { });
44 if (Array.isArray(cmd)) {
45 if (isCommandAndAliases(cmd)) {
46 [cmd, ...aliases] = cmd;
47 }
48 else {
49 for (const command of cmd) {
50 this.addHandler(command);
51 }
52 }
53 }
54 else if (isCommandHandlerDefinition(cmd)) {
55 let command = Array.isArray(cmd.command) || typeof cmd.command === 'string'
56 ? cmd.command
57 : this.moduleName(cmd);
58 if (cmd.aliases)
59 command = [].concat(command).concat(cmd.aliases);
60 this.addHandler(command, this.extractDesc(cmd), cmd.builder, cmd.handler, cmd.middlewares, cmd.deprecated);
61 return;
62 }
63 else if (isCommandBuilderDefinition(builder)) {
64 this.addHandler([cmd].concat(aliases), description, builder.builder, builder.handler, builder.middlewares, builder.deprecated);
65 return;
66 }
67 if (typeof cmd === 'string') {
68 const parsedCommand = parseCommand(cmd);
69 aliases = aliases.map(alias => parseCommand(alias).cmd);
70 let isDefault = false;
71 const parsedAliases = [parsedCommand.cmd].concat(aliases).filter(c => {
72 if (DEFAULT_MARKER.test(c)) {
73 isDefault = true;
74 return false;
75 }
76 return true;
77 });
78 if (parsedAliases.length === 0 && isDefault)
79 parsedAliases.push('$0');
80 if (isDefault) {
81 parsedCommand.cmd = parsedAliases[0];
82 aliases = parsedAliases.slice(1);
83 cmd = cmd.replace(DEFAULT_MARKER, parsedCommand.cmd);
84 }
85 aliases.forEach(alias => {
86 this.aliasMap[alias] = parsedCommand.cmd;
87 });
88 if (description !== false) {
89 this.usage.command(cmd, description, isDefault, aliases, deprecated);
90 }
91 this.handlers[parsedCommand.cmd] = {
92 original: cmd,
93 description,
94 handler,
95 builder: builder || {},
96 middlewares,
97 deprecated,
98 demanded: parsedCommand.demanded,
99 optional: parsedCommand.optional,
100 };
101 if (isDefault)
102 this.defaultCommand = this.handlers[parsedCommand.cmd];
103 }
104 }
105 getCommandHandlers() {
106 return this.handlers;
107 }
108 getCommands() {
109 return Object.keys(this.handlers).concat(Object.keys(this.aliasMap));
110 }
111 hasDefaultCommand() {
112 return !!this.defaultCommand;
113 }
114 runCommand(command, yargs, parsed, commandIndex, helpOnly, helpOrVersionSet) {
115 const commandHandler = this.handlers[command] ||
116 this.handlers[this.aliasMap[command]] ||
117 this.defaultCommand;
118 const currentContext = yargs.getInternalMethods().getContext();
119 const parentCommands = currentContext.commands.slice();
120 const isDefaultCommand = !command;
121 if (command) {
122 currentContext.commands.push(command);
123 currentContext.fullCommands.push(commandHandler.original);
124 }
125 const builderResult = this.applyBuilderUpdateUsageAndParse(isDefaultCommand, commandHandler, yargs, parsed.aliases, parentCommands, commandIndex, helpOnly, helpOrVersionSet);
126 return isPromise(builderResult)
127 ? builderResult.then(result => this.applyMiddlewareAndGetResult(isDefaultCommand, commandHandler, result.innerArgv, currentContext, helpOnly, result.aliases, yargs))
128 : this.applyMiddlewareAndGetResult(isDefaultCommand, commandHandler, builderResult.innerArgv, currentContext, helpOnly, builderResult.aliases, yargs);
129 }
130 applyBuilderUpdateUsageAndParse(isDefaultCommand, commandHandler, yargs, aliases, parentCommands, commandIndex, helpOnly, helpOrVersionSet) {
131 const builder = commandHandler.builder;
132 let innerYargs = yargs;
133 if (isCommandBuilderCallback(builder)) {
134 const builderOutput = builder(yargs.getInternalMethods().reset(aliases), helpOrVersionSet);
135 if (isPromise(builderOutput)) {
136 return builderOutput.then(output => {
137 innerYargs = isYargsInstance(output) ? output : yargs;
138 return this.parseAndUpdateUsage(isDefaultCommand, commandHandler, innerYargs, parentCommands, commandIndex, helpOnly);
139 });
140 }
141 }
142 else if (isCommandBuilderOptionDefinitions(builder)) {
143 innerYargs = yargs.getInternalMethods().reset(aliases);
144 Object.keys(commandHandler.builder).forEach(key => {
145 innerYargs.option(key, builder[key]);
146 });
147 }
148 return this.parseAndUpdateUsage(isDefaultCommand, commandHandler, innerYargs, parentCommands, commandIndex, helpOnly);
149 }
150 parseAndUpdateUsage(isDefaultCommand, commandHandler, innerYargs, parentCommands, commandIndex, helpOnly) {
151 if (isDefaultCommand)
152 innerYargs.getInternalMethods().getUsageInstance().unfreeze();
153 if (this.shouldUpdateUsage(innerYargs)) {
154 innerYargs
155 .getInternalMethods()
156 .getUsageInstance()
157 .usage(this.usageFromParentCommandsCommandHandler(parentCommands, commandHandler), commandHandler.description);
158 }
159 const innerArgv = innerYargs
160 .getInternalMethods()
161 .runYargsParserAndExecuteCommands(null, undefined, true, commandIndex, helpOnly);
162 return isPromise(innerArgv)
163 ? innerArgv.then(argv => ({
164 aliases: innerYargs.parsed.aliases,
165 innerArgv: argv,
166 }))
167 : {
168 aliases: innerYargs.parsed.aliases,
169 innerArgv: innerArgv,
170 };
171 }
172 shouldUpdateUsage(yargs) {
173 return (!yargs.getInternalMethods().getUsageInstance().getUsageDisabled() &&
174 yargs.getInternalMethods().getUsageInstance().getUsage().length === 0);
175 }
176 usageFromParentCommandsCommandHandler(parentCommands, commandHandler) {
177 const c = DEFAULT_MARKER.test(commandHandler.original)
178 ? commandHandler.original.replace(DEFAULT_MARKER, '').trim()
179 : commandHandler.original;
180 const pc = parentCommands.filter(c => {
181 return !DEFAULT_MARKER.test(c);
182 });
183 pc.push(c);
184 return `$0 ${pc.join(' ')}`;
185 }
186 applyMiddlewareAndGetResult(isDefaultCommand, commandHandler, innerArgv, currentContext, helpOnly, aliases, yargs) {
187 let positionalMap = {};
188 if (helpOnly)
189 return innerArgv;
190 if (!yargs.getInternalMethods().getHasOutput()) {
191 positionalMap = this.populatePositionals(commandHandler, innerArgv, currentContext, yargs);
192 }
193 const middlewares = this.globalMiddleware
194 .getMiddleware()
195 .slice(0)
196 .concat(commandHandler.middlewares);
197 innerArgv = applyMiddleware(innerArgv, yargs, middlewares, true);
198 if (!yargs.getInternalMethods().getHasOutput()) {
199 const validation = yargs
200 .getInternalMethods()
201 .runValidation(aliases, positionalMap, yargs.parsed.error, isDefaultCommand);
202 innerArgv = maybeAsyncResult(innerArgv, result => {
203 validation(result);
204 return result;
205 });
206 }
207 if (commandHandler.handler && !yargs.getInternalMethods().getHasOutput()) {
208 yargs.getInternalMethods().setHasOutput();
209 const populateDoubleDash = !!yargs.getOptions().configuration['populate--'];
210 yargs
211 .getInternalMethods()
212 .postProcess(innerArgv, populateDoubleDash, false, false);
213 innerArgv = applyMiddleware(innerArgv, yargs, middlewares, false);
214 innerArgv = maybeAsyncResult(innerArgv, result => {
215 const handlerResult = commandHandler.handler(result);
216 return isPromise(handlerResult)
217 ? handlerResult.then(() => result)
218 : result;
219 });
220 if (!isDefaultCommand) {
221 yargs.getInternalMethods().getUsageInstance().cacheHelpMessage();
222 }
223 if (isPromise(innerArgv) &&
224 !yargs.getInternalMethods().hasParseCallback()) {
225 innerArgv.catch(error => {
226 try {
227 yargs.getInternalMethods().getUsageInstance().fail(null, error);
228 }
229 catch (_err) {
230 }
231 });
232 }
233 }
234 if (!isDefaultCommand) {
235 currentContext.commands.pop();
236 currentContext.fullCommands.pop();
237 }
238 return innerArgv;
239 }
240 populatePositionals(commandHandler, argv, context, yargs) {
241 argv._ = argv._.slice(context.commands.length);
242 const demanded = commandHandler.demanded.slice(0);
243 const optional = commandHandler.optional.slice(0);
244 const positionalMap = {};
245 this.validation.positionalCount(demanded.length, argv._.length);
246 while (demanded.length) {
247 const demand = demanded.shift();
248 this.populatePositional(demand, argv, positionalMap);
249 }
250 while (optional.length) {
251 const maybe = optional.shift();
252 this.populatePositional(maybe, argv, positionalMap);
253 }
254 argv._ = context.commands.concat(argv._.map(a => '' + a));
255 this.postProcessPositionals(argv, positionalMap, this.cmdToParseOptions(commandHandler.original), yargs);
256 return positionalMap;
257 }
258 populatePositional(positional, argv, positionalMap) {
259 const cmd = positional.cmd[0];
260 if (positional.variadic) {
261 positionalMap[cmd] = argv._.splice(0).map(String);
262 }
263 else {
264 if (argv._.length)
265 positionalMap[cmd] = [String(argv._.shift())];
266 }
267 }
268 cmdToParseOptions(cmdString) {
269 const parseOptions = {
270 array: [],
271 default: {},
272 alias: {},
273 demand: {},
274 };
275 const parsed = parseCommand(cmdString);
276 parsed.demanded.forEach(d => {
277 const [cmd, ...aliases] = d.cmd;
278 if (d.variadic) {
279 parseOptions.array.push(cmd);
280 parseOptions.default[cmd] = [];
281 }
282 parseOptions.alias[cmd] = aliases;
283 parseOptions.demand[cmd] = true;
284 });
285 parsed.optional.forEach(o => {
286 const [cmd, ...aliases] = o.cmd;
287 if (o.variadic) {
288 parseOptions.array.push(cmd);
289 parseOptions.default[cmd] = [];
290 }
291 parseOptions.alias[cmd] = aliases;
292 });
293 return parseOptions;
294 }
295 postProcessPositionals(argv, positionalMap, parseOptions, yargs) {
296 const options = Object.assign({}, yargs.getOptions());
297 options.default = Object.assign(parseOptions.default, options.default);
298 for (const key of Object.keys(parseOptions.alias)) {
299 options.alias[key] = (options.alias[key] || []).concat(parseOptions.alias[key]);
300 }
301 options.array = options.array.concat(parseOptions.array);
302 options.config = {};
303 const unparsed = [];
304 Object.keys(positionalMap).forEach(key => {
305 positionalMap[key].map(value => {
306 if (options.configuration['unknown-options-as-args'])
307 options.key[key] = true;
308 unparsed.push(`--${key}`);
309 unparsed.push(value);
310 });
311 });
312 if (!unparsed.length)
313 return;
314 const config = Object.assign({}, options.configuration, {
315 'populate--': false,
316 });
317 const parsed = this.shim.Parser.detailed(unparsed, Object.assign({}, options, {
318 configuration: config,
319 }));
320 if (parsed.error) {
321 yargs
322 .getInternalMethods()
323 .getUsageInstance()
324 .fail(parsed.error.message, parsed.error);
325 }
326 else {
327 const positionalKeys = Object.keys(positionalMap);
328 Object.keys(positionalMap).forEach(key => {
329 positionalKeys.push(...parsed.aliases[key]);
330 });
331 const defaults = yargs.getOptions().default;
332 Object.keys(parsed.argv).forEach(key => {
333 if (positionalKeys.includes(key)) {
334 if (!positionalMap[key])
335 positionalMap[key] = parsed.argv[key];
336 if (!Object.prototype.hasOwnProperty.call(defaults, key) &&
337 Object.prototype.hasOwnProperty.call(argv, key) &&
338 Object.prototype.hasOwnProperty.call(parsed.argv, key) &&
339 (Array.isArray(argv[key]) || Array.isArray(parsed.argv[key]))) {
340 argv[key] = [].concat(argv[key], parsed.argv[key]);
341 }
342 else {
343 argv[key] = parsed.argv[key];
344 }
345 }
346 });
347 }
348 }
349 runDefaultBuilderOn(yargs) {
350 if (!this.defaultCommand)
351 return;
352 if (this.shouldUpdateUsage(yargs)) {
353 const commandString = DEFAULT_MARKER.test(this.defaultCommand.original)
354 ? this.defaultCommand.original
355 : this.defaultCommand.original.replace(/^[^[\]<>]*/, '$0 ');
356 yargs
357 .getInternalMethods()
358 .getUsageInstance()
359 .usage(commandString, this.defaultCommand.description);
360 }
361 const builder = this.defaultCommand.builder;
362 if (isCommandBuilderCallback(builder)) {
363 return builder(yargs, true);
364 }
365 else if (!isCommandBuilderDefinition(builder)) {
366 Object.keys(builder).forEach(key => {
367 yargs.option(key, builder[key]);
368 });
369 }
370 return undefined;
371 }
372 moduleName(obj) {
373 const mod = whichModule(obj);
374 if (!mod)
375 throw new Error(`No command name given for module: ${this.shim.inspect(obj)}`);
376 return this.commandFromFilename(mod.filename);
377 }
378 commandFromFilename(filename) {
379 return this.shim.path.basename(filename, this.shim.path.extname(filename));
380 }
381 extractDesc({ describe, description, desc }) {
382 for (const test of [describe, description, desc]) {
383 if (typeof test === 'string' || test === false)
384 return test;
385 assertNotStrictEqual(test, true, this.shim);
386 }
387 return false;
388 }
389 freeze() {
390 this.frozens.push({
391 handlers: this.handlers,
392 aliasMap: this.aliasMap,
393 defaultCommand: this.defaultCommand,
394 });
395 }
396 unfreeze() {
397 const frozen = this.frozens.pop();
398 assertNotStrictEqual(frozen, undefined, this.shim);
399 ({
400 handlers: this.handlers,
401 aliasMap: this.aliasMap,
402 defaultCommand: this.defaultCommand,
403 } = frozen);
404 }
405 reset() {
406 this.handlers = {};
407 this.aliasMap = {};
408 this.defaultCommand = undefined;
409 this.requireCache = new Set();
410 return this;
411 }
412}
413export function command(usage, validation, globalMiddleware, shim) {
414 return new CommandInstance(usage, validation, globalMiddleware, shim);
415}
416export function isCommandBuilderDefinition(builder) {
417 return (typeof builder === 'object' &&
418 !!builder.builder &&
419 typeof builder.handler === 'function');
420}
421function isCommandAndAliases(cmd) {
422 return cmd.every(c => typeof c === 'string');
423}
424export function isCommandBuilderCallback(builder) {
425 return typeof builder === 'function';
426}
427function isCommandBuilderOptionDefinitions(builder) {
428 return typeof builder === 'object';
429}
430export function isCommandHandlerDefinition(cmd) {
431 return typeof cmd === 'object' && !Array.isArray(cmd);
432}
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