237 lines
9.7 KiB
JavaScript
237 lines
9.7 KiB
JavaScript
import { isCommandBuilderCallback } from './command.js';
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import { assertNotStrictEqual } from './typings/common-types.js';
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import * as templates from './completion-templates.js';
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import { isPromise } from './utils/is-promise.js';
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import { parseCommand } from './parse-command.js';
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export class Completion {
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constructor(yargs, usage, command, shim) {
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var _a, _b, _c;
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this.yargs = yargs;
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this.usage = usage;
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this.command = command;
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this.shim = shim;
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this.completionKey = 'get-yargs-completions';
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this.aliases = null;
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this.customCompletionFunction = null;
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this.indexAfterLastReset = 0;
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this.zshShell =
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(_c = (((_a = this.shim.getEnv('SHELL')) === null || _a === void 0 ? void 0 : _a.includes('zsh')) ||
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((_b = this.shim.getEnv('ZSH_NAME')) === null || _b === void 0 ? void 0 : _b.includes('zsh')))) !== null && _c !== void 0 ? _c : false;
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}
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defaultCompletion(args, argv, current, done) {
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const handlers = this.command.getCommandHandlers();
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for (let i = 0, ii = args.length; i < ii; ++i) {
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if (handlers[args[i]] && handlers[args[i]].builder) {
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const builder = handlers[args[i]].builder;
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if (isCommandBuilderCallback(builder)) {
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this.indexAfterLastReset = i + 1;
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const y = this.yargs.getInternalMethods().reset();
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builder(y, true);
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return y.argv;
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}
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}
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}
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const completions = [];
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this.commandCompletions(completions, args, current);
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this.optionCompletions(completions, args, argv, current);
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this.choicesFromOptionsCompletions(completions, args, argv, current);
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this.choicesFromPositionalsCompletions(completions, args, argv, current);
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done(null, completions);
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}
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commandCompletions(completions, args, current) {
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const parentCommands = this.yargs
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.getInternalMethods()
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.getContext().commands;
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if (!current.match(/^-/) &&
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parentCommands[parentCommands.length - 1] !== current &&
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!this.previousArgHasChoices(args)) {
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this.usage.getCommands().forEach(usageCommand => {
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const commandName = parseCommand(usageCommand[0]).cmd;
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if (args.indexOf(commandName) === -1) {
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if (!this.zshShell) {
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completions.push(commandName);
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}
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else {
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const desc = usageCommand[1] || '';
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completions.push(commandName.replace(/:/g, '\\:') + ':' + desc);
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}
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}
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});
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}
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}
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optionCompletions(completions, args, argv, current) {
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if ((current.match(/^-/) || (current === '' && completions.length === 0)) &&
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!this.previousArgHasChoices(args)) {
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const options = this.yargs.getOptions();
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const positionalKeys = this.yargs.getGroups()[this.usage.getPositionalGroupName()] || [];
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Object.keys(options.key).forEach(key => {
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const negable = !!options.configuration['boolean-negation'] &&
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options.boolean.includes(key);
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const isPositionalKey = positionalKeys.includes(key);
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if (!isPositionalKey &&
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!options.hiddenOptions.includes(key) &&
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!this.argsContainKey(args, key, negable)) {
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this.completeOptionKey(key, completions, current);
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if (negable && !!options.default[key])
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this.completeOptionKey(`no-${key}`, completions, current);
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}
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});
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}
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}
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choicesFromOptionsCompletions(completions, args, argv, current) {
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if (this.previousArgHasChoices(args)) {
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const choices = this.getPreviousArgChoices(args);
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if (choices && choices.length > 0) {
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completions.push(...choices.map(c => c.replace(/:/g, '\\:')));
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}
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}
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}
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choicesFromPositionalsCompletions(completions, args, argv, current) {
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if (current === '' &&
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completions.length > 0 &&
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this.previousArgHasChoices(args)) {
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return;
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}
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const positionalKeys = this.yargs.getGroups()[this.usage.getPositionalGroupName()] || [];
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const offset = Math.max(this.indexAfterLastReset, this.yargs.getInternalMethods().getContext().commands.length +
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1);
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const positionalKey = positionalKeys[argv._.length - offset - 1];
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if (!positionalKey) {
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return;
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}
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const choices = this.yargs.getOptions().choices[positionalKey] || [];
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for (const choice of choices) {
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if (choice.startsWith(current)) {
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completions.push(choice.replace(/:/g, '\\:'));
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}
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}
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}
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getPreviousArgChoices(args) {
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if (args.length < 1)
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return;
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let previousArg = args[args.length - 1];
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let filter = '';
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if (!previousArg.startsWith('-') && args.length > 1) {
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filter = previousArg;
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previousArg = args[args.length - 2];
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}
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if (!previousArg.startsWith('-'))
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return;
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const previousArgKey = previousArg.replace(/^-+/, '');
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const options = this.yargs.getOptions();
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const possibleAliases = [
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previousArgKey,
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...(this.yargs.getAliases()[previousArgKey] || []),
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];
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let choices;
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for (const possibleAlias of possibleAliases) {
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if (Object.prototype.hasOwnProperty.call(options.key, possibleAlias) &&
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Array.isArray(options.choices[possibleAlias])) {
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choices = options.choices[possibleAlias];
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break;
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}
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}
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if (choices) {
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return choices.filter(choice => !filter || choice.startsWith(filter));
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}
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}
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previousArgHasChoices(args) {
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const choices = this.getPreviousArgChoices(args);
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return choices !== undefined && choices.length > 0;
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}
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argsContainKey(args, key, negable) {
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const argsContains = (s) => args.indexOf((/^[^0-9]$/.test(s) ? '-' : '--') + s) !== -1;
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if (argsContains(key))
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return true;
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if (negable && argsContains(`no-${key}`))
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return true;
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if (this.aliases) {
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for (const alias of this.aliases[key]) {
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if (argsContains(alias))
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return true;
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}
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}
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return false;
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}
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completeOptionKey(key, completions, current) {
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const descs = this.usage.getDescriptions();
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const startsByTwoDashes = (s) => /^--/.test(s);
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const isShortOption = (s) => /^[^0-9]$/.test(s);
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const dashes = !startsByTwoDashes(current) && isShortOption(key) ? '-' : '--';
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if (!this.zshShell) {
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completions.push(dashes + key);
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}
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else {
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const desc = descs[key] || '';
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completions.push(dashes +
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`${key.replace(/:/g, '\\:')}:${desc.replace('__yargsString__:', '')}`);
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}
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}
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customCompletion(args, argv, current, done) {
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assertNotStrictEqual(this.customCompletionFunction, null, this.shim);
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if (isSyncCompletionFunction(this.customCompletionFunction)) {
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const result = this.customCompletionFunction(current, argv);
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if (isPromise(result)) {
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return result
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.then(list => {
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this.shim.process.nextTick(() => {
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done(null, list);
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});
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})
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.catch(err => {
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this.shim.process.nextTick(() => {
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done(err, undefined);
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});
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});
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}
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return done(null, result);
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}
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else if (isFallbackCompletionFunction(this.customCompletionFunction)) {
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return this.customCompletionFunction(current, argv, (onCompleted = done) => this.defaultCompletion(args, argv, current, onCompleted), completions => {
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done(null, completions);
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});
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}
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else {
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return this.customCompletionFunction(current, argv, completions => {
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done(null, completions);
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});
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}
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}
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getCompletion(args, done) {
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const current = args.length ? args[args.length - 1] : '';
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const argv = this.yargs.parse(args, true);
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const completionFunction = this.customCompletionFunction
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? (argv) => this.customCompletion(args, argv, current, done)
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: (argv) => this.defaultCompletion(args, argv, current, done);
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return isPromise(argv)
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? argv.then(completionFunction)
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: completionFunction(argv);
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}
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generateCompletionScript($0, cmd) {
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let script = this.zshShell
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? templates.completionZshTemplate
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: templates.completionShTemplate;
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const name = this.shim.path.basename($0);
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if ($0.match(/\.js$/))
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$0 = `./${$0}`;
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script = script.replace(/{{app_name}}/g, name);
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script = script.replace(/{{completion_command}}/g, cmd);
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return script.replace(/{{app_path}}/g, $0);
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}
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registerFunction(fn) {
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this.customCompletionFunction = fn;
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}
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setParsed(parsed) {
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this.aliases = parsed.aliases;
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}
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}
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export function completion(yargs, usage, command, shim) {
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return new Completion(yargs, usage, command, shim);
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}
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function isSyncCompletionFunction(completionFunction) {
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return completionFunction.length < 3;
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}
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function isFallbackCompletionFunction(completionFunction) {
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return completionFunction.length > 3;
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}
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