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Code Issues Releases Wiki Activity

Added deletion support to HttpSync and LocalFileSync

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This commit is contained in:
Jeremy Ruston 2012-04-05 18:25:39 +01:00
parent 0ac55688c4
commit d34f163dbc
3 changed files with 53 additions and 21 deletions
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9
js/HttpSync.js
View File

@ -4,7 +4,7 @@ title: js/HttpSync.js
\*/
(function(){
/*jslint node: true */
/*jslint node: true, browser: true */
"use strict";
function HttpSync(store) {
@ -12,7 +12,8 @@ function HttpSync(store) {
this.changeCounts = {};
store.addEventListener("",function(changes) {
for(var title in changes) {
var tiddler = store.getTiddler(title);
var x = new XMLHttpRequest(),
tiddler = store.getTiddler(title);
if(tiddler) {
var fieldStrings = tiddler.getFieldStrings(),
fields = {},
@ -21,10 +22,12 @@ function HttpSync(store) {
fields[fieldStrings[t].name] = fieldStrings[t].value;
}
fields.text = tiddler.text;
var x = new XMLHttpRequest();
x.open("PUT",window.location.toString() + encodeURIComponent(title),true);
x.setRequestHeader("Content-type", "application/json");
x.send(JSON.stringify(fields));
} else {
x.open("DELETE",window.location.toString() + encodeURIComponent(title),true);
x.send();
}
}
});

60
js/LocalFileSync.js
View File

@ -15,19 +15,26 @@ var retrieveFile = require("./FileRetriever.js").retrieveFile,
util = require("util"),
async = require("async");
function LocalFileSync(dirpath,store,callback) {
this.dirpath = dirpath;
this.store = store;
this.callback = callback;
this.changeCounts = {}; // A hashmap of <tiddlername>: <changeCount>
var self = this;
// Set up a queue for loading tiddler files
this.tiddlers = {}; // A hashmap of <tiddlername>: {changeCount: <changeCount>, files: [name]}
var self = this,
sanitizeFilepath = function(filepath) {
return filepath.replace(/\//mg,"-");
};
// Set up a queue for loading tiddler files, tasks are {filepath:,callback:}
this.loadQueue = async.queue(function(task,callback) {
task.files = [];
retrieveFile(task.filepath,self.dirpath,function(err,data) {
if(err) {
callback(err);
} else {
// Use the filepath as the default title and src for the tiddler
task.files.push(task.filepath);
// Use the filepath as the default title for the tiddler
var fields = {
title: data.path
};
@ -39,6 +46,7 @@ function LocalFileSync(dirpath,store,callback) {
if(err && err.code !== "ENOENT" && err.code !== "404") {
callback(err);
} else {
task.files.push(metafile);
var fields = tiddlers[0];
if(!err) {
var text = data.text.split("\n\n")[0];
@ -70,14 +78,17 @@ function LocalFileSync(dirpath,store,callback) {
for(var t=0; t<tiddlers.length; t++) {
var tiddler = tiddlers[t];
self.store.addTiddler(tiddler);
self.changeCounts[tiddler.title] = self.store.getChangeCount(tiddler.title);
self.tiddlers[tiddler.title] = {
changeCount: self.store.getChangeCount(tiddler.title),
files: task.files
};
}
};
for(var t=0; t<files.length; t++) {
var f = files[t];
if(["..",".",".DS_Store"].indexOf(f) === -1 && f.indexOf(".meta") !== f.length-5) {
self.loadQueue.push({
filepath: path.resolve(self.dirpath,f),
filepath: f,
callback: loadCallback
});
}
@ -89,7 +100,7 @@ function LocalFileSync(dirpath,store,callback) {
var data = task.data,
encoding = "utf8";
if(task.binary) {
data = new Buffer(task.data,"base64").toString("binary"),
data = new Buffer(task.data,"base64").toString("binary");
encoding = "binary";
}
fs.writeFile(self.dirpath + "/" + task.name,data,encoding,function(err) {
@ -98,22 +109,35 @@ function LocalFileSync(dirpath,store,callback) {
},10);
// Install our event listener to listen out for tiddler changes
this.store.addEventListener("",function(changes) {
var t;
for(var title in changes) {
// Get the information about the tiddler
var tiddler = self.store.getTiddler(title),
changeCount = self.store.getChangeCount(title),
lastChangeCount = self.changeCounts[title],
tiddlerInfo = self.tiddlers[title],
files = [];
// Construct a changecount record if we don't have one
if(!lastChangeCount) {
lastChangeCount = 0;
self.changeCounts[title] = lastChangeCount;
}
// Save the tiddler if the changecount has increased
if(changeCount > lastChangeCount) {
files = self.store.serializeTiddlers([tiddler],"application/x-tiddler");
for(var t=0; t<files.length; t++) {
self.saveQueue.push(files[t]);
if(tiddler) {
// Construct a changecount record if we don't have one
if(!tiddlerInfo) {
tiddlerInfo = {changeCount: 0, files: []};
self.tiddlers[title] = tiddlerInfo;
}
// Save the tiddler if the changecount has increased
if(changeCount > tiddlerInfo.changeCount) {
files = self.store.serializeTiddlers([tiddler],"application/x-tiddler");
for(t=0; t<files.length; t++) {
files[t].name = sanitizeFilepath(files[t].name);
tiddlerInfo.files.push(files[t].name);
self.saveQueue.push(files[t]);
}
}
} else {
// Delete the tiddler file if the tiddler has gone
if(tiddlerInfo) {
for(t=0; t<tiddlerInfo.files.length; t++) {
fs.unlink(self.dirpath + "/" + tiddlerInfo.files[t]);
}
delete self.tiddlers[title];
}
}
}

5
tiddlywiki.js
View File

@ -190,6 +190,11 @@ var commandLineSwitches = {
response.end();
});
break;
case "DELETE":
app.store.deleteTiddler(decodeURIComponent(path.substr(1)));
response.writeHead(204, "OK");
response.end();
break;
case "GET":
if(path === "/") {
response.writeHead(200, {"Content-Type": "text/html"});