aboutsummaryrefslogtreecommitdiff
path: root/node_modules/jake/lib/parseargs.js
diff options
context:
space:
mode:
authorMinteck <minteck@phoenixnet.tech>2021-10-17 20:08:04 +0200
committerMinteck <minteck@phoenixnet.tech>2021-10-17 20:08:04 +0200
commit3a94acf27ea1eff8bd1125450f07c0c366332e80 (patch)
tree5bd619df0b7e04afc174df98736a527477522acb /node_modules/jake/lib/parseargs.js
downloadwolfeye-js-3a94acf27ea1eff8bd1125450f07c0c366332e80.tar.gz
wolfeye-js-3a94acf27ea1eff8bd1125450f07c0c366332e80.tar.bz2
wolfeye-js-3a94acf27ea1eff8bd1125450f07c0c366332e80.zip
Initial commit
Diffstat (limited to 'node_modules/jake/lib/parseargs.js')
-rw-r--r--node_modules/jake/lib/parseargs.js134
1 files changed, 134 insertions, 0 deletions
diff --git a/node_modules/jake/lib/parseargs.js b/node_modules/jake/lib/parseargs.js
new file mode 100644
index 0000000..1bd24c9
--- /dev/null
+++ b/node_modules/jake/lib/parseargs.js
@@ -0,0 +1,134 @@
+/*
+ * Jake JavaScript build tool
+ * Copyright 2112 Matthew Eernisse (mde@fleegix.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+*/
+
+let parseargs = {};
+let isOpt = function (arg) { return arg.indexOf('-') === 0 };
+let removeOptPrefix = function (opt) { return opt.replace(/^--/, '').replace(/^-/, '') };
+
+/**
+ * @constructor
+ * Parses a list of command-line args into a key/value object of
+ * options and an array of positional commands.
+ * @ param {Array} opts A list of options in the following format:
+ * [{full: 'foo', abbr: 'f'}, {full: 'bar', abbr: 'b'}]]
+ */
+parseargs.Parser = function (opts) {
+ // A key/value object of matching options parsed out of the args
+ this.opts = {};
+ this.taskNames = null;
+ this.envVars = null;
+
+ // Data structures used for parsing
+ this.reg = opts;
+ this.shortOpts = {};
+ this.longOpts = {};
+
+ let self = this;
+ [].forEach.call(opts, function (item) {
+ self.shortOpts[item.abbr] = item;
+ self.longOpts[item.full] = item;
+ });
+};
+
+parseargs.Parser.prototype = new function () {
+
+ let _trueOrNextVal = function (argParts, args) {
+ if (argParts[1]) {
+ return argParts[1];
+ }
+ else {
+ return (!args[0] || isOpt(args[0])) ?
+ true : args.shift();
+ }
+ };
+
+ /**
+ * Parses an array of arguments into options and positional commands
+ * @param {Array} args The command-line args to parse
+ */
+ this.parse = function (args) {
+ let cmds = [];
+ let cmd;
+ let envVars = {};
+ let opts = {};
+ let arg;
+ let argItem;
+ let argParts;
+ let cmdItems;
+ let taskNames = [];
+ let preempt;
+
+ while (args.length) {
+ arg = args.shift();
+
+ if (isOpt(arg)) {
+ arg = removeOptPrefix(arg);
+ argParts = arg.split('=');
+ argItem = this.longOpts[argParts[0]] || this.shortOpts[argParts[0]];
+ if (argItem) {
+ // First-encountered preemptive opt takes precedence -- no further opts
+ // or possibility of ambiguity, so just look for a value, or set to
+ // true and then bail
+ if (argItem.preempts) {
+ opts[argItem.full] = _trueOrNextVal(argParts, args);
+ preempt = true;
+ break;
+ }
+ // If the opt requires a value, see if we can get a value from the
+ // next arg, or infer true from no-arg -- if it's followed by another
+ // opt, throw an error
+ if (argItem.expectValue || argItem.allowValue) {
+ opts[argItem.full] = _trueOrNextVal(argParts, args);
+ if (argItem.expectValue && !opts[argItem.full]) {
+ throw new Error(argItem.full + ' option expects a value.');
+ }
+ }
+ else {
+ opts[argItem.full] = true;
+ }
+ }
+ }
+ else {
+ cmds.unshift(arg);
+ }
+ }
+
+ if (!preempt) {
+ // Parse out any env-vars and task-name
+ while ((cmd = cmds.pop())) {
+ cmdItems = cmd.split('=');
+ if (cmdItems.length > 1) {
+ envVars[cmdItems[0]] = cmdItems[1];
+ }
+ else {
+ taskNames.push(cmd);
+ }
+ }
+
+ }
+
+ return {
+ opts: opts,
+ envVars: envVars,
+ taskNames: taskNames
+ };
+ };
+
+};
+
+module.exports = parseargs;