First pass at new unified command line interface

readme.md

@@ -48,10 +48,11 @@ The command line options are processed in sequential order from left to right. P
 
 	--recipe <filepath>			# Loads a specfied `.recipe` file
 	--load <filepath>			# Load additional tiddlers from TiddlyWiki files (`.html`), `.tiddler`, `.tid`, `.json` or other files
-	--savewiki <outdir>			# Saves all the loaded tiddlers as a single file TiddlyWiki in `.html` and RSS (`.xml`) format
+	--savewiki <filepath>		# Saves all the loaded tiddlers as a single file TiddlyWiki in `.html` format
+	--saverss <filepath> 		# Saves the the loaded tiddlers as an RSS feed in `.xml` format
 	--savetiddlers <outdir>		# Saves all the loaded tiddlers as `.tid` files in the specified directory
-	--servewiki <host:port>		# Serve the cooked TiddlyWiki over HTTP at `/`
-	--servetiddlers <host:port>	# Serve individual tiddlers over HTTP at `/tiddlertitle`
+	--servewiki <port>			# Serve the cooked TiddlyWiki over HTTP at `/`
+	--servetiddlers <port>		# Serve individual tiddlers over HTTP at `/tiddlertitle`
 	--verbose 					# verbose output, useful for debugging
 
 This example loads the tiddlers from a TiddlyWiki HTML file and makes them available over HTTP:

tiddlywiki.js

@@ -0,0 +1,149 @@
+/*
+TiddlyWiki command line interface
+*/
+
+/*global require: false, exports: false, process: false */
+"use strict";
+
+var WikiStore = require("./js/WikiStore.js").WikiStore,
+	Tiddler = require("./js/Tiddler.js").Tiddler,
+	Recipe = require("./js/Recipe.js").Recipe,
+	Tiddler = require("./js/Tiddler.js").Tiddler,
+	tiddlyWikiInput = require("./js/TiddlyWikiInput.js"),
+	tiddlerOutput = require("./js/TiddlerOutput.js"),
+	util = require("util"),
+	fs = require("fs"),
+	path = require("path"),
+	aync = require("async"),
+	http = require("http");
+
+var parseOptions = function(args,defaultSwitch) {
+	var result = [],
+		a = 0,
+		switchRegExp = /^--([\S]+)$/gi;
+	while(a < args.length) {
+		switchRegExp.lastIndex = 0;
+		var m = switchRegExp.exec(args[a]);
+		if(m) {
+			a++;
+			var switchArgs = [];
+			switchRegExp.lastIndex = 0;
+			while(a < args.length && !switchRegExp.test(args[a])) {
+				switchArgs.push(args[a++]);
+			switchRegExp.lastIndex = 0;
+			}
+			result.push({switch: m[1], args: switchArgs});
+		} else {
+			result.push({switch: defaultSwitch, args: [args[a++]]});
+		}
+	}
+	return result;
+};
+
+var switches = parseOptions(Array.prototype.slice.call(process.argv,2),"dummy"),
+	store = new WikiStore(),
+	recipe = null,
+	lastRecipeFilepath = null,
+	currSwitch = 0;
+
+var processNextSwitch = function() {
+	if(currSwitch < switches.length) {
+		var s = switches[currSwitch++],
+			csw = commandLineSwitches[s.switch];
+		if(s.args.length < csw.args.min) {
+			throw "Command line switch --" + s.switch + " should have a minimum of " + csw.args.min + " arguments"
+		}
+		if(s.args.length > csw.args.max) {
+			throw "Command line switch --" + s.switch + " should have a maximum of " + csw.args.max + " arguments"
+		}
+		csw.handler(s.args,function (err) {
+			if(err) {
+				throw err;
+			}
+			process.nextTick(processNextSwitch);
+		});
+	}
+};
+
+process.nextTick(processNextSwitch);
+
+/*
+Each command line switch is represented by a function that takes a string array of arguments and a callback to
+be invoked when the switch processing has completed. The only argument to the callback is an error code, or null
+for success.
+*/
+var commandLineSwitches = {
+	recipe: {
+		args: {min: 1, max: 1},
+		handler: function(args,callback) {
+			if(recipe) {
+				callback("--recipe: Cannot process more than one recipe file");
+			} else {
+				lastRecipeFilepath = args[0];
+				recipe = new Recipe(store,args[0],function() {
+					callback(null);
+				});
+			}
+		}
+	},
+	load: {
+		args: {min: 1, max: 1},
+		handler: function(args,callback) {
+			process.nextTick(function() {callback(null);});
+		}
+	},
+	savewiki: {
+		args: {min: 1, max: 1},
+		handler: function(args,callback) {
+			if(!recipe) {
+				callback("--savewiki requires a recipe to be loaded first");
+			}
+			fs.writeFile(args[0],recipe.cook(),"utf8",function(err) {
+				callback(err);
+			});
+		}
+	},
+	savetiddlers: {
+		args: {min: 1, max: 1},
+		handler: function(args,callback) {
+			var recipe = [];
+			store.forEachTiddler(function(title,tiddler) {
+				var filename = encodeURIComponent(tiddler.fields.title.replace(/ /g,"_")) + ".tid";
+				fs.writeFileSync(path.resolve(args[0],filename),tiddlerOutput.outputTiddler(tiddler),"utf8");
+				recipe.push("tiddler: " + filename + "\n");
+			});
+			fs.writeFileSync(path.join(args[0],"split.recipe"),recipe.join(""));
+			process.nextTick(function() {callback(null);});
+		}
+	},
+	servewiki: {
+		args: {min: 0, max: 1},
+		handler: function(args,callback) {
+			if(!lastRecipeFilepath) {
+				callback("--servewiki must be preceded by a --recipe");
+			}
+			var port = args.length > 0 ? args[0] : 8000;
+			// Dumbly, this implementation wastes the recipe processing that happened on the --recipe switch
+			http.createServer(function(request, response) {
+				response.writeHead(200, {"Content-Type": "text/html"});
+				store = new WikiStore();
+				recipe = new Recipe(store,lastRecipeFilepath,function() {
+					response.end(recipe.cook(), "utf8");	
+				});
+			}).listen(port);
+		}
+	},
+	servetiddlers: {
+		args: {min: 1, max: 1},
+		handler: function(args,callback) {
+			process.nextTick(function() {callback(null);});
+		}
+	},
+	verbose: {
+		args: {min: 0, max: 0},
+		handler: function(args,callback) {
+			process.nextTick(function() {callback(null);});
+		}
+	}
+};
+

wikitest.js

@@ -48,4 +48,4 @@ for(t=0; t<titles.length; t++) {
 	if(plainTarget !== plainRender) {
 		console.error("Tiddler %s plain text error\nTarget: %s\nFound: %s",titles[t],plainTarget,plainRender);
 	}
-}
+}