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`

.gitignore

@@ -1,2 +1,3 @@
 .DS_Store
 tmp/
+output/

boot/boot.js

@@ -1612,6 +1612,7 @@ $tw.boot.startup = function(options) {
 			wikiThemesSubDir: "./themes",
 			wikiLanguagesSubDir: "./languages",
 			wikiTiddlersSubDir: "./tiddlers",
+			wikiOutputSubDir: "./output",
 			jsModuleHeaderRegExpString: "^\\/\\*\\\\(?:\\r?\\n)((?:^[^\\r\\n]*(?:\\r?\\n))+?)(^\\\\\\*\\/$(?:\\r?\\n)?)",
 			fileExtensionInfo: Object.create(null), // Map file extension to {type:}
 			contentTypeInfo: Object.create(null) // Map type to {encoding:,extension:}

core/language/en-GB/Help/build.tid

@@ -0,0 +1,11 @@
+title: $:/language/Help/build
+description: Automatically run configured commands
+
+Build the specified build targets for the current wiki. If no build targets are specified then all available targets will be built.
+
+```
+--build <target> [<target> ...]
+```
+
+Build targets are defined in the `tiddlywiki.info` file of a wiki folder.
+

core/language/en-GB/Help/clearpassword.tid

@@ -0,0 +1,8 @@
+title: $:/language/Help/clearpassword
+description: Set a password for subsequent crypto operations
+
+Clear the password for subsequent crypto operations
+
+```
+--clearpassword
+```

core/language/en-GB/Help/output.tid

@@ -0,0 +1,10 @@
+title: $:/language/Help/output
+description: Set the base output directory for subsequent commands
+
+Sets the base output directory for subsequent commands. The default output directory is the current working directory.
+
+```
+--output <pathname>
+```
+
+If the specified pathname is relative then it is resolved relative to the current output directory.

core/language/en-GB/Help/rendertiddler.tid

@@ -6,3 +6,5 @@ Render an individual tiddler as a specified ContentType, defaults to `text/html`
 ```
 --rendertiddler <title> <filename> [<type>]
 ```
+
+Any missing directories in the path to the filename are automatically created.

core/language/en-GB/Help/rendertiddlers.tid

@@ -12,3 +12,5 @@ For example:
 ```
 --rendertiddlers [!is[system]] $:/core/templates/static.tiddler.html ./static text/plain
 ```
+
+Any files in the target directory are deleted. The target directory is recursively created if it is missing.

core/language/en-GB/Help/savetiddler.tid

@@ -6,3 +6,5 @@ Saves an individual tiddler in its raw text or binary format to the specified fi
 ```
 --savetiddler <title> <filename>
 ```
+
+Any missing directories in the path to the filename are automatically created.

core/modules/commander.js

@@ -20,11 +20,20 @@ Parse a sequence of commands
 	callback: a callback invoked as callback(err) where err is null if there was no error
 */
 var Commander = function(commandTokens,callback,wiki,streams) {
+	var path = require("path");
 	this.commandTokens = commandTokens;
 	this.nextToken = 0;
 	this.callback = callback;
 	this.wiki = wiki;
 	this.streams = streams;
+	this.outputPath = process.cwd();
+};
+
+/*
+Add a string of tokens to the command queue
+*/
+Commander.prototype.addCommandTokens = function(commandTokens) {
+	Array.prototype.push.apply(this.commandTokens,commandTokens);
 };
 
 /*

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);
 	});

core/modules/utils/filesystem.js

@@ -87,9 +87,13 @@ exports.removeTrailingSeparator = function(dirPath) {
 Recursively create a directory
 */
 exports.createDirectory = function(dirPath) {
-	var parts = dirPath.split(path.sep);
-	for(var component=0; component<parts.length; component++) {
-		var subDirPath = parts.slice(0,component+1).join(path.sep);
+	if(dirPath.substr(dirPath.length-1,1) !== path.sep) {
+		dirPath = dirPath + path.sep;
+	}
+	var pos = 1;
+	pos = dirPath.indexOf(path.sep,pos);
+	while(pos !== -1) {
+		var subDirPath = dirPath.substr(0,pos);
 		if(!$tw.utils.isDirectory(subDirPath)) {
 			try {
 				fs.mkdirSync(subDirPath);
@@ -97,6 +101,33 @@ exports.createDirectory = function(dirPath) {
 				return "Error creating directory '" + subDirPath + "'";
 			}
 		}
+		pos = dirPath.indexOf(path.sep,pos + 1);
+	}
+	return null;
+};
+
+/*
+Recursively create directories needed to contain a specified file
+*/
+exports.createFileDirectories = function(filePath) {
+	return $tw.utils.createDirectory(path.dirname(filePath));
+};
+
+/*
+Recursively delete a directory
+*/
+exports.deleteDirectory = function(dirPath) {
+	if(fs.existsSync(dirPath)) {
+		var entries = fs.readdirSync(dirPath);
+		for(var entryIndex=0; entryIndex<entries.length; entryIndex++) {
+			var currPath = dirPath + path.sep + entries[entryIndex];
+			if(fs.lstatSync(currPath).isDirectory()) {
+				$tw.utils.deleteDirectory(currPath);
+			} else {
+				fs.unlinkSync(currPath);
+			}
+		}
+	fs.rmdirSync(dirPath);
 	}
 	return null;
 };

editions/tw5.com/tiddlers/commands/BuildCommand.tid

@@ -0,0 +1,7 @@
+created: 20140425085548209
+modified: 20140425085738745
+tags: command
+title: BuildCommand
+type: text/vnd.tiddlywiki
+
+{{$:/language/Help/build}}

editions/tw5.com/tiddlers/commands/ClearPasswordCommand.tid

@@ -0,0 +1,4 @@
+title: ClearPasswordCommand
+tags: command
+
+{{$:/language/Help/clearpassword}}

editions/tw5.com/tiddlers/commands/OutputCommand.tid

@@ -0,0 +1,7 @@
+created: 20140425085548209
+modified: 20140425085738745
+tags: command
+title: OutputCommand
+type: text/vnd.tiddlywiki
+
+{{$:/language/Help/output}}

editions/tw5.com/tiddlers/concepts/TiddlyWikiFolders.tid

@@ -24,6 +24,7 @@ The `tiddlywiki.info` file in a wiki folder contains a JSON object comprising th
 * ''themes'' - an array of theme names to be included in the wiki
 * ''languages'' - an array of language names to be included in the wiki
 * ''includeWikis'' - an array of relative paths to external wiki folders to be included in the wiki
+* ''build'' - a hashmap of named build targets, each defined by an array of command tokens (see BuildCommand)
 * ''config'' - an optional hashmap of configuration options (see below)
 
 Configuration options include:
@@ -34,16 +35,23 @@ For example:
 
 ```
 {
-  "plugins": [
-    "tiddlywiki/tiddlyweb",
-    "tiddlywiki/filesystem"
-  ],
-  "includeWikis": [
-    "../tw5.com"
-  ],
-  "config": {
-	"retain-original-tiddler-path": true	
-  }
+	"plugins": [
+		"tiddlywiki/tiddlyweb",
+		"tiddlywiki/filesystem"
+	],
+	"includeWikis": [
+		"../tw5.com"
+	],
+	"build": {
+		"index": [
+			"--rendertiddler","$:/core/save/all","index.html","text/plain"],
+		"favicon": [
+			"--savetiddler","$:/favicon.ico","favicon.ico",
+			"--savetiddler","$:/green_favicon.ico","static/favicon.ico"]
+	},
+	"config": {
+		"retain-original-tiddler-path": true	
+	}
 }
 ```
 
@@ -55,26 +63,26 @@ Sub-folders within the `tiddlers` folder can also be given a `tiddlywiki.files`
 
 ```
 {
-  "tiddlers": [
-    {
-      "file": "d3.min.js",
-      "fields": {
-        "type": "application/javascript",
-        "title": "$:/plugins/tiddlywiki/d3/d3.js",
-        "module-type": "library"
-      },
-      "prefix": "var d3;if($tw.browser){\n",
-      "suffix": "}\nexports.d3 = d3;\n"
-    },
-    {
-      "file": "cloud/d3.layout.cloud.js",
-      "fields": {
-        "type": "application/javascript",
-        "title": "$:/plugins/tiddlywiki/d3/d3.layout.cloud.js",
-        "module-type": "library"
-      }
-    }
-  ]
+	"tiddlers": [
+		{
+			"file": "d3.min.js",
+			"fields": {
+				"type": "application/javascript",
+				"title": "$:/plugins/tiddlywiki/d3/d3.js",
+				"module-type": "library"
+			},
+			"prefix": "var d3;if($tw.browser){\n",
+			"suffix": "}\nexports.d3 = d3;\n"
+		},
+		{
+			"file": "cloud/d3.layout.cloud.js",
+			"fields": {
+				"type": "application/javascript",
+				"title": "$:/plugins/tiddlywiki/d3/d3.layout.cloud.js",
+				"module-type": "library"
+			}
+		}
+	]
 }
 ```
 

editions/tw5.com/tiddlywiki.info

@@ -26,8 +26,30 @@
 		"zh-Hant",
 		"it-IT",
 		"ja-JP"
-	]
-	,
+	],
+	"build": {
+		"index": [
+			"--rendertiddler","$:/core/save/all","index.html","text/plain"],
+		"encrypted": [
+			"--password", "password",
+			"--rendertiddler", "$:/core/save/all", "encrypted.html", "text/plain",
+			"--clearpassword"],
+		"favicon": [
+			"--savetiddler","$:/favicon.ico","favicon.ico",
+			"--savetiddler","$:/green_favicon.ico","static/favicon.ico"],
+		"readmes": [
+			"--rendertiddler","ReadMe","readme.md","text/html",
+			"--rendertiddler","ContributingTemplate","contributing.md","text/html",
+			"--rendertiddler","$:/core/copyright.txt","licenses/copyright.md","text/html"],
+		"empty": [
+			"--rendertiddler","$:/editions/tw5.com/download-empty","empty.html","text/plain",
+			"--rendertiddler","$:/editions/tw5.com/download-empty","empty.hta","text/plain"],
+		"static": [
+			"--rendertiddler","$:/core/templates/static.template.html","static.html","text/plain",
+			"--rendertiddler","$:/core/templates/alltiddlers.template.html","alltiddlers.html","text/plain",
+			"--rendertiddler","$:/core/templates/static.template.css","static/static.css","text/plain",
+			"--rendertiddlers","[!is[system]]","$:/core/templates/static.tiddler.html","static","text/plain"]
+	},
 	"config": {
 		"retain-original-tiddler-path": true
 	}