mirror of
https://github.com/Jermolene/TiddlyWiki5
synced 2024-12-30 12:00:28 +00:00
240 lines
8.1 KiB
JavaScript
240 lines
8.1 KiB
JavaScript
/*\
|
||
title: $:/plugins/tiddlywiki/filesystem/filesystemadaptor.js
|
||
type: application/javascript
|
||
module-type: syncadaptor
|
||
|
||
A sync adaptor module for synchronising with the local filesystem via node.js APIs
|
||
|
||
\*/
|
||
(function(){
|
||
|
||
/*jslint node: true, browser: true */
|
||
/*global $tw: false */
|
||
"use strict";
|
||
|
||
// Get a reference to the file system
|
||
var fs = $tw.node ? require("fs") : null,
|
||
path = $tw.node ? require("path") : null;
|
||
|
||
function FileSystemAdaptor(options) {
|
||
var self = this;
|
||
this.wiki = options.wiki;
|
||
this.logger = new $tw.utils.Logger("FileSystem");
|
||
// Create the <wiki>/tiddlers folder if it doesn't exist
|
||
$tw.utils.createDirectory($tw.boot.wikiTiddlersPath);
|
||
}
|
||
|
||
FileSystemAdaptor.prototype.isReady = function() {
|
||
// The file system adaptor is always ready
|
||
return true;
|
||
};
|
||
|
||
FileSystemAdaptor.prototype.getTiddlerInfo = function(tiddler) {
|
||
return {};
|
||
};
|
||
|
||
$tw.config.typeInfo = {
|
||
"text/vnd.tiddlywiki": {
|
||
fileType: "application/x-tiddler",
|
||
extension: ".tid"
|
||
}
|
||
};
|
||
|
||
FileSystemAdaptor.prototype.getTiddlerFileInfo = function(tiddler,callback) {
|
||
// See if we've already got information about this file
|
||
var self = this,
|
||
title = tiddler.fields.title,
|
||
fileInfo = $tw.boot.files[title];
|
||
// Get information about how to save tiddlers of this type
|
||
var type = tiddler.fields.type || "text/vnd.tiddlywiki";
|
||
var typeInfo = $tw.config.typeInfo[type] ||
|
||
$tw.config.contentTypeInfo[type] ||
|
||
$tw.config.typeInfo["text/vnd.tiddlywiki"];
|
||
var extension = typeInfo.extension || "";
|
||
if(!fileInfo) {
|
||
// If not, we'll need to generate it
|
||
// Start by getting a list of the existing files in the directory
|
||
fs.readdir($tw.boot.wikiTiddlersPath,function(err,files) {
|
||
if(err) {
|
||
return callback(err);
|
||
}
|
||
// Assemble the new fileInfo
|
||
fileInfo = {};
|
||
fileInfo.filepath = $tw.boot.wikiTiddlersPath + path.sep + self.generateTiddlerFilename(title,extension,files);
|
||
fileInfo.type = typeInfo.fileType || tiddler.fields.type;
|
||
fileInfo.hasMetaFile = typeInfo.hasMetaFile;
|
||
// Save the newly created fileInfo
|
||
$tw.boot.files[title] = fileInfo;
|
||
// Pass it to the callback
|
||
callback(null,fileInfo);
|
||
});
|
||
} else {
|
||
// Otherwise just invoke the callback
|
||
callback(null,fileInfo);
|
||
}
|
||
};
|
||
|
||
/*
|
||
Transliterate string from cyrillic russian to latin
|
||
*/
|
||
var transliterate = function(cyrillyc) {
|
||
var a = {"Ё":"YO","Й":"I","Ц":"TS","У":"U","К":"K","Е":"E","Н":"N","Г":"G","Ш":"SH","Щ":"SCH","З":"Z","Х":"H","Ъ":"'","ё":"yo","й":"i","ц":"ts","у":"u","к":"k","е":"e","н":"n","г":"g","ш":"sh","щ":"sch","з":"z","х":"h","ъ":"'","Ф":"F","Ы":"I","В":"V","А":"a","П":"P","Р":"R","О":"O","Л":"L","Д":"D","Ж":"ZH","Э":"E","ф":"f","ы":"i","в":"v","а":"a","п":"p","р":"r","о":"o","л":"l","д":"d","ж":"zh","э":"e","Я":"Ya","Ч":"CH","С":"S","М":"M","И":"I","Т":"T","Ь":"'","Б":"B","Ю":"YU","я":"ya","ч":"ch","с":"s","м":"m","и":"i","т":"t","ь":"'","б":"b","ю":"yu"};
|
||
return cyrillyc.split("").map(function (char) {
|
||
return a[char] || char;
|
||
}).join("");
|
||
};
|
||
|
||
/*
|
||
Given a list of filters, apply every one in turn to source, and return the first result of the first filter with non-empty result.
|
||
*/
|
||
FileSystemAdaptor.prototype.findFirstFilter = function(filters,source) {
|
||
var numFilters = filters.length;
|
||
for(var i=0; i<numFilters; i++) {
|
||
var result = this.wiki.filterTiddlers(filters[i],null,source);
|
||
if(result.length > 0) {
|
||
return result[0];
|
||
}
|
||
}
|
||
};
|
||
|
||
/*
|
||
Add file extension to a file path if it doesn't already exist.
|
||
*/
|
||
FileSystemAdaptor.addFileExtension = function(file,extension) {
|
||
return $tw.utils.strEndsWith(file,extension) ? file : file + extension;
|
||
};
|
||
|
||
|
||
/*
|
||
Given a tiddler title and an array of existing filenames, generate a new legal filename for the title, case insensitively avoiding the array of existing filenames
|
||
*/
|
||
FileSystemAdaptor.prototype.generateTiddlerFilename = function(title,extension,existingFilenames) {
|
||
var baseFilename;
|
||
// Check whether the user has configured a tiddler -> pathname mapping
|
||
var pathNameFilters = this.wiki.getTiddlerText("$:/config/FileSystemPaths");
|
||
if(pathNameFilters) {
|
||
var source = this.wiki.makeTiddlerIterator([title]);
|
||
var result = this.findFirstFilter(pathNameFilters.split("\n"),source);
|
||
if(result) {
|
||
// interpret "/" as path separator
|
||
baseFilename = result.replace(/\//g,path.sep);
|
||
}
|
||
}
|
||
if(!baseFilename) {
|
||
// no mapping configured, or it did not match this tiddler
|
||
// in this case, we fall back to legacy behaviour
|
||
baseFilename = title.replace(/\//g,"_");
|
||
}
|
||
// Remove any of the characters that are illegal in Windows filenames
|
||
var baseFilename = transliterate(baseFilename.replace(/<|>|\:|\"|\\|\||\?|\*|\^|\s/g,"_"));
|
||
// Truncate the filename if it is too long
|
||
if(baseFilename.length > 200) {
|
||
baseFilename = baseFilename.substr(0,200);
|
||
}
|
||
// Start with the base filename plus the extension
|
||
var filename = FileSystemAdaptor.addFileExtension(baseFilename,extension),
|
||
count = 1;
|
||
// Add a discriminator if we're clashing with an existing filename while
|
||
// handling case-insensitive filesystems (NTFS, FAT/FAT32, etc.)
|
||
while(existingFilenames.some(function(value) {return value.toLocaleLowerCase() === filename.toLocaleLowerCase();})) {
|
||
filename = baseFilename + " " + (count++) + extension;
|
||
}
|
||
return filename;
|
||
};
|
||
|
||
/*
|
||
Save a tiddler and invoke the callback with (err,adaptorInfo,revision)
|
||
*/
|
||
FileSystemAdaptor.prototype.saveTiddler = function(tiddler,callback) {
|
||
var self = this;
|
||
this.getTiddlerFileInfo(tiddler,function(err,fileInfo) {
|
||
var template, content, encoding, filepath,
|
||
_finish = function() {
|
||
callback(null, {}, 0);
|
||
};
|
||
if(err) {
|
||
return callback(err);
|
||
}
|
||
var error = $tw.utils.createDirectory(path.dirname(fileInfo.filepath));
|
||
if(error) {
|
||
return callback(error);
|
||
}
|
||
var typeInfo = $tw.config.contentTypeInfo[fileInfo.type];
|
||
if(fileInfo.hasMetaFile || typeInfo.encoding === "base64") {
|
||
// Save the tiddler as a separate body and meta file
|
||
filepath = fileInfo.filepath;
|
||
fs.writeFile(filepath,tiddler.fields.text,{encoding: typeInfo.encoding},function(err) {
|
||
if(err) {
|
||
return callback(err);
|
||
}
|
||
content = self.wiki.renderTiddler("text/plain","$:/core/templates/tiddler-metadata",{variables: {currentTiddler: tiddler.fields.title}});
|
||
filepath = FileSystemAdaptor.addFileExtension(fileInfo.filepath,".meta");
|
||
fs.writeFile(filepath,content,{encoding: "utf8"},function (err) {
|
||
if(err) {
|
||
return callback(err);
|
||
}
|
||
self.logger.log("Saved file",filepath);
|
||
_finish();
|
||
});
|
||
});
|
||
} else {
|
||
// Save the tiddler as a self contained templated file
|
||
content = self.wiki.renderTiddler("text/plain","$:/core/templates/tid-tiddler",{variables: {currentTiddler: tiddler.fields.title}});
|
||
filepath = FileSystemAdaptor.addFileExtension(fileInfo.filepath,".tid");
|
||
fs.writeFile(filepath,content,{encoding: "utf8"},function (err) {
|
||
if(err) {
|
||
return callback(err);
|
||
}
|
||
self.logger.log("Saved file",filepath);
|
||
_finish();
|
||
});
|
||
}
|
||
});
|
||
};
|
||
|
||
/*
|
||
Load a tiddler and invoke the callback with (err,tiddlerFields)
|
||
|
||
We don't need to implement loading for the file system adaptor, because all the tiddler files will have been loaded during the boot process.
|
||
*/
|
||
FileSystemAdaptor.prototype.loadTiddler = function(title,callback) {
|
||
callback(null,null);
|
||
};
|
||
|
||
/*
|
||
Delete a tiddler and invoke the callback with (err)
|
||
*/
|
||
FileSystemAdaptor.prototype.deleteTiddler = function(title,callback,options) {
|
||
var self = this,
|
||
fileInfo = $tw.boot.files[title];
|
||
// Only delete the tiddler if we have writable information for the file
|
||
if(fileInfo) {
|
||
// Delete the file
|
||
fs.unlink(fileInfo.filepath,function(err) {
|
||
if(err) {
|
||
return callback(err);
|
||
}
|
||
self.logger.log("Deleted file",fileInfo.filepath);
|
||
// Delete the metafile if present
|
||
if(fileInfo.hasMetaFile) {
|
||
fs.unlink(FileSystemAdaptor.addFileExtension(fileInfo.filepath,".meta"),function(err) {
|
||
if(err) {
|
||
return callback(err);
|
||
}
|
||
$tw.utils.deleteEmptyDirs(path.dirname(fileInfo.filepath),callback);
|
||
});
|
||
} else {
|
||
$tw.utils.deleteEmptyDirs(path.dirname(fileInfo.filepath),callback);
|
||
}
|
||
});
|
||
} else {
|
||
callback(null);
|
||
}
|
||
};
|
||
|
||
if(fs) {
|
||
exports.adaptorClass = FileSystemAdaptor;
|
||
}
|
||
|
||
})();
|