mirror of
https://github.com/Jermolene/TiddlyWiki5
synced 2024-12-26 10:00:34 +00:00
5b3b62f93d
We were taking the commands expanded from the build targets and placing them at the end of the queue. That caused a problem whereby the prevailing output folder was always the last one in the command token list. Now we splice the new commands into the command token list at the current position.
124 lines
3.1 KiB
JavaScript
124 lines
3.1 KiB
JavaScript
/*\
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title: $:/core/modules/commander.js
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type: application/javascript
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module-type: global
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The $tw.Commander class is a command interpreter
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\*/
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(function(){
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/*jslint node: true, browser: true */
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/*global $tw: false */
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"use strict";
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/*
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Parse a sequence of commands
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commandTokens: an array of command string tokens
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wiki: reference to the wiki store object
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streams: {output:, error:}, each of which has a write(string) method
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callback: a callback invoked as callback(err) where err is null if there was no error
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*/
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var Commander = function(commandTokens,callback,wiki,streams) {
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var path = require("path");
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this.commandTokens = commandTokens;
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this.nextToken = 0;
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this.callback = callback;
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this.wiki = wiki;
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this.streams = streams;
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this.outputPath = path.resolve($tw.boot.wikiPath,$tw.config.wikiOutputSubDir);
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};
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/*
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Add a string of tokens to the command queue
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*/
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Commander.prototype.addCommandTokens = function(commandTokens) {
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var params = commandTokens.slice(0);
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params.unshift(0);
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params.unshift(this.nextToken);
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Array.prototype.splice.apply(this.commandTokens,params);
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};
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/*
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Execute the sequence of commands and invoke a callback on completion
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*/
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Commander.prototype.execute = function() {
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this.executeNextCommand();
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};
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/*
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Execute the next command in the sequence
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*/
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Commander.prototype.executeNextCommand = function() {
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var self = this;
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// Invoke the callback if there are no more commands
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if(this.nextToken >= this.commandTokens.length) {
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this.callback(null);
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} else {
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// Get and check the command token
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var commandName = this.commandTokens[this.nextToken++];
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if(commandName.substr(0,2) !== "--") {
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this.callback("Missing command");
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} else {
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commandName = commandName.substr(2); // Trim off the --
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// Accumulate the parameters to the command
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var params = [];
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while(this.nextToken < this.commandTokens.length &&
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this.commandTokens[this.nextToken].substr(0,2) !== "--") {
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params.push(this.commandTokens[this.nextToken++]);
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}
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// Get the command info
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var command = $tw.commands[commandName],
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c,err;
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if(!command) {
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this.callback("Unknown command: " + commandName);
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} else {
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if(this.verbose) {
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this.streams.output.write("Executing command: " + commandName + " " + params.join(" ") + "\n");
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}
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if(command.info.synchronous) {
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// Synchronous command
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c = new command.Command(params,this);
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err = c.execute();
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if(err) {
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this.callback(err);
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} else {
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this.executeNextCommand();
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}
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} else {
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// Asynchronous command
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c = new command.Command(params,this,function(err) {
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if(err) {
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self.callback(err);
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} else {
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self.executeNextCommand();
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}
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});
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err = c.execute();
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if(err) {
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this.callback(err);
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}
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}
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}
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}
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}
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};
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Commander.initCommands = function(moduleType) {
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moduleType = moduleType || "command";
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$tw.commands = {};
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$tw.modules.forEachModuleOfType(moduleType,function(title,module) {
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var c = $tw.commands[module.info.name] = {};
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// Add the methods defined by the module
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for(var f in module) {
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if($tw.utils.hop(module,f)) {
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c[f] = module[f];
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}
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}
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});
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};
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exports.Commander = Commander;
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})();
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