Add --build command

First pass at the build system described in #356.

To test it, move to a new, empty directory and try `tiddlywiki
editions/tw5.com --verbose --build`

core/modules/commands/build.js

@@ -0,0 +1,52 @@
+/*\
+title: $:/core/modules/commands/build.js
+type: application/javascript
+module-type: command
+
+Command to build a build target
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+exports.info = {
+	name: "build",
+	synchronous: true
+};
+
+var Command = function(params,commander) {
+	this.params = params;
+	this.commander = commander;
+};
+
+Command.prototype.execute = function() {
+	// Get the build targets defined in the wiki
+	var buildTargets = $tw.boot.wikiInfo.build;
+	if(!buildTargets) {
+		return "No build targets defined"
+	}
+	// Loop through each of the specified targets
+	var targets;
+	if(this.params.length > 0) {
+		targets = this.params;
+	} else {
+		targets = Object.keys(buildTargets);
+	}
+	for(var targetIndex=0; targetIndex<targets.length; targetIndex++) {
+		var target = targets[targetIndex],
+			commands = buildTargets[target];
+		if(!commands) {
+			return "Build target '" + target + "' not found";
+		}
+		// Add the commands to the queue
+		this.commander.addCommandTokens(commands);
+	}
+	return null;
+};
+
+exports.Command = Command;
+
+})();

core/modules/commands/clearpassword.js

@@ -0,0 +1,33 @@
+/*\
+title: $:/core/modules/commands/clearpassword.js
+type: application/javascript
+module-type: command
+
+Clear password for crypto operations
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+exports.info = {
+	name: "clearpassword",
+	synchronous: true
+};
+
+var Command = function(params,commander,callback) {
+	this.params = params;
+	this.commander = commander;
+	this.callback = callback;
+};
+
+Command.prototype.execute = function() {
+	$tw.crypto.setPassword(null);
+	return null;
+};
+
+exports.Command = Command;
+
+})();

core/modules/commands/output.js

@@ -0,0 +1,38 @@
+/*\
+title: $:/core/modules/commands/output.js
+type: application/javascript
+module-type: command
+
+Command to set the default output location (defaults to current working directory)
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+exports.info = {
+	name: "output",
+	synchronous: true
+};
+
+var Command = function(params,commander,callback) {
+	this.params = params;
+	this.commander = commander;
+	this.callback = callback;
+};
+
+Command.prototype.execute = function() {
+	var fs = require("fs"),
+		path = require("path");
+	if(this.params.length < 1) {
+		return "Missing output path";
+	}
+	this.commander.outputPath = path.resolve(this.commander.outputPath,this.params[0]);
+	return null;
+};
+
+exports.Command = Command;
+
+})();

core/modules/commands/rendertiddler.js

@@ -31,8 +31,9 @@ Command.prototype.execute = function() {
 		fs = require("fs"),
 		path = require("path"),
 		title = this.params[0],
-		filename = this.params[1],
+		filename = path.resolve(this.commander.outputPath,this.params[1]),
 		type = this.params[2] || "text/html";
+	$tw.utils.createFileDirectories(filename);
 	fs.writeFile(filename,this.commander.wiki.renderTiddler(type,title),"utf8",function(err) {
 		self.callback(err);
 	});

core/modules/commands/rendertiddlers.js

@@ -35,10 +35,12 @@ Command.prototype.execute = function() {
 		wiki = this.commander.wiki,
 		filter = this.params[0],
 		template = this.params[1],
-		pathname = this.params[2],
+		pathname = path.resolve(this.commander.outputPath,this.params[2]),
 		type = this.params[3] || "text/html",
 		extension = this.params[4] || ".html",
 		tiddlers = wiki.filterTiddlers(filter);
+	$tw.utils.deleteDirectory(pathname);
+	$tw.utils.createDirectory(pathname);
 	$tw.utils.each(tiddlers,function(title) {
 		var parser = wiki.parseTiddler(template),
 			widgetNode = wiki.makeWidget(parser,{variables: {currentTiddler: title}});

core/modules/commands/savetiddler.js

@@ -31,10 +31,11 @@ Command.prototype.execute = function() {
 		fs = require("fs"),
 		path = require("path"),
 		title = this.params[0],
-		filename = this.params[1],
+		filename = path.resolve(this.commander.outputPath,this.params[1]),
 		tiddler = this.commander.wiki.getTiddler(title),
 		type = tiddler.fields.type || "text/vnd.tiddlywiki",
 		contentTypeInfo = $tw.config.contentTypeInfo[type] || {encoding: "utf8"};
+	$tw.utils.createFileDirectories(filename);
 	fs.writeFile(filename,tiddler.fields.text,contentTypeInfo.encoding,function(err) {
 		self.callback(err);
 	});