diff options
Diffstat (limited to 'node_modules/npm-run-all/bin/common/parse-cli-args.js')
| -rw-r--r-- | node_modules/npm-run-all/bin/common/parse-cli-args.js | 251 |
1 files changed, 251 insertions, 0 deletions
diff --git a/node_modules/npm-run-all/bin/common/parse-cli-args.js b/node_modules/npm-run-all/bin/common/parse-cli-args.js new file mode 100644 index 0000000..7f056fc --- /dev/null +++ b/node_modules/npm-run-all/bin/common/parse-cli-args.js @@ -0,0 +1,251 @@ +/** + * @author Toru Nagashima + * @copyright 2016 Toru Nagashima. All rights reserved. + * See LICENSE file in root directory for full license. + */ +"use strict" + +/*eslint-disable no-process-env */ + +//------------------------------------------------------------------------------ +// Helpers +//------------------------------------------------------------------------------ + +const OVERWRITE_OPTION = /^--([^:]+?):([^=]+?)(?:=(.+))?$/ +const CONFIG_OPTION = /^--([^=]+?)(?:=(.+))$/ +const PACKAGE_CONFIG_PATTERN = /^npm_package_config_(.+)$/ +const CONCAT_OPTIONS = /^-[clnprs]+$/ + +/** + * Overwrites a specified package config. + * + * @param {object} config - A config object to be overwritten. + * @param {string} packageName - A package name to overwrite. + * @param {string} variable - A variable name to overwrite. + * @param {string} value - A new value to overwrite. + * @returns {void} + */ +function overwriteConfig(config, packageName, variable, value) { + const scope = config[packageName] || (config[packageName] = {}) + scope[variable] = value +} + +/** + * Creates a package config object. + * This checks `process.env` and creates the default value. + * + * @returns {object} Created config object. + */ +function createPackageConfig() { + const retv = {} + const packageName = process.env.npm_package_name + if (!packageName) { + return retv + } + + for (const key of Object.keys(process.env)) { + const m = PACKAGE_CONFIG_PATTERN.exec(key) + if (m != null) { + overwriteConfig(retv, packageName, m[1], process.env[key]) + } + } + + return retv +} + +/** + * Adds a new group into a given list. + * + * @param {object[]} groups - A group list to add. + * @param {object} initialValues - A key-value map for the default of new value. + * @returns {void} + */ +function addGroup(groups, initialValues) { + groups.push(Object.assign( + { parallel: false, patterns: [] }, + initialValues || {} + )) +} + +/** + * ArgumentSet is values of parsed CLI arguments. + * This class provides the getter to get the last group. + */ +class ArgumentSet { + /** + * @param {object} initialValues - A key-value map for the default of new value. + * @param {object} options - A key-value map for the options. + */ + constructor(initialValues, options) { + this.config = {} + this.continueOnError = false + this.groups = [] + this.maxParallel = 0 + this.npmPath = null + this.packageConfig = createPackageConfig() + this.printLabel = false + this.printName = false + this.race = false + this.rest = [] + this.silent = process.env.npm_config_loglevel === "silent" + this.singleMode = Boolean(options && options.singleMode) + + addGroup(this.groups, initialValues) + } + + /** + * Gets the last group. + */ + get lastGroup() { + return this.groups[this.groups.length - 1] + } + + /** + * Gets "parallel" flag. + */ + get parallel() { + return this.groups.some(g => g.parallel) + } +} + +/** + * Parses CLI arguments. + * + * @param {ArgumentSet} set - The parsed CLI arguments. + * @param {string[]} args - CLI arguments. + * @returns {ArgumentSet} set itself. + */ +function parseCLIArgsCore(set, args) { // eslint-disable-line complexity + LOOP: + for (let i = 0; i < args.length; ++i) { + const arg = args[i] + + switch (arg) { + case "--": + set.rest = args.slice(1 + i) + break LOOP + + case "--color": + case "--no-color": + // do nothing. + break + + case "-c": + case "--continue-on-error": + set.continueOnError = true + break + + case "-l": + case "--print-label": + set.printLabel = true + break + + case "-n": + case "--print-name": + set.printName = true + break + + case "-r": + case "--race": + set.race = true + break + + case "--silent": + set.silent = true + break + + case "--max-parallel": + set.maxParallel = parseInt(args[++i], 10) + if (!Number.isFinite(set.maxParallel) || set.maxParallel <= 0) { + throw new Error(`Invalid Option: --max-parallel ${args[i]}`) + } + break + + case "-s": + case "--sequential": + case "--serial": + if (set.singleMode && arg === "-s") { + set.silent = true + break + } + if (set.singleMode) { + throw new Error(`Invalid Option: ${arg}`) + } + addGroup(set.groups) + break + + case "--aggregate-output": + set.aggregateOutput = true + break + + case "-p": + case "--parallel": + if (set.singleMode) { + throw new Error(`Invalid Option: ${arg}`) + } + addGroup(set.groups, { parallel: true }) + break + + case "--npm-path": + set.npmPath = args[++i] || null + break + + default: { + let matched = null + if ((matched = OVERWRITE_OPTION.exec(arg))) { + overwriteConfig( + set.packageConfig, + matched[1], + matched[2], + matched[3] || args[++i] + ) + } + else if ((matched = CONFIG_OPTION.exec(arg))) { + set.config[matched[1]] = matched[2] + } + else if (CONCAT_OPTIONS.test(arg)) { + parseCLIArgsCore( + set, + arg.slice(1).split("").map(c => `-${c}`) + ) + } + else if (arg[0] === "-") { + throw new Error(`Invalid Option: ${arg}`) + } + else { + set.lastGroup.patterns.push(arg) + } + + break + } + } + } + + if (!set.parallel && set.aggregateOutput) { + throw new Error("Invalid Option: --aggregate-output (without parallel)") + } + if (!set.parallel && set.race) { + const race = args.indexOf("--race") !== -1 ? "--race" : "-r" + throw new Error(`Invalid Option: ${race} (without parallel)`) + } + if (!set.parallel && set.maxParallel !== 0) { + throw new Error("Invalid Option: --max-parallel (without parallel)") + } + + return set +} + +/** + * Parses CLI arguments. + * + * @param {string[]} args - CLI arguments. + * @param {object} initialValues - A key-value map for the default of new value. + * @param {object} options - A key-value map for the options. + * @param {boolean} options.singleMode - The flag to be single group mode. + * @returns {ArgumentSet} The parsed CLI arguments. + */ +module.exports = function parseCLIArgs(args, initialValues, options) { + return parseCLIArgsCore(new ArgumentSet(initialValues, options), args) +} + +/*eslint-enable */ |