mirror of
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106 lines
3.1 KiB
JavaScript
106 lines
3.1 KiB
JavaScript
// This was written by the wonderful Forrest Tait
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// modified by Mark to be part of core for convenience
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// twas not designed for production use
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// only simple local development.
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var Gun = require('../gun'),
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file = {};
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Gun.on('opt').event(function(gun, opts) {
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if ((opts.file === false) || (opts.s3 && opts.s3.key)) {
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return; // don't use this plugin if S3 is being used.
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}
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console.log("WARNING! This `file.js` module for gun is intended only for local development testing!")
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opts.file = opts.file || 'data.json';
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var fs = require('fs');
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file.raw = file.raw || (fs.existsSync || require('path').existsSync)(opts.file) ? fs.readFileSync(opts.file).toString() : null;
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var all = file.all = file.all || Gun.obj.ify(file.raw || {
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nodes: {},
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keys: {}
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});
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all.keys = all.keys || {};
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all.nodes = all.nodes || {};
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// queue writes, adapted from https://github.com/toolness/jsondown/blob/master/jsondown.js
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var isWriting = false, queuedWrites = [];
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function writeFile(cb) {
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if(isWriting) return queuedWrites.push(cb);
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isWriting = true;
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fs.writeFile(opts.file, Gun.text.ify(all), function(err) {
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var batch = queuedWrites.splice(0);
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isWriting = false;
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cb(err);
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if(batch.length)
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writeFile( function(err) {
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batch.forEach( function(cb) { cb(err); } )
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});
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});
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}
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gun.opt({hooks: {
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get: function get(key, cb, o){
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var graph, soul;
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if(soul = Gun.is.soul(key)){
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if(all.nodes[soul]){
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(graph = {})[soul] = all.nodes[soul];
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cb(null, graph);
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(graph = {})[soul] = Gun.union.pseudo(soul);
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cb(null, graph); // end.
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}
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return;
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}
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Gun.obj.map(all.keys[key], function(rel){
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if(Gun.is.soul(rel)){ get(soul = rel, cb, o) }
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});
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return soul? cb(null, {}) : cb(null, null);
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},
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put: function(graph, cb, o){
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for (key in gun.__.graph) all.nodes[key]=gun.__.graph[key];
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writeFile(cb);
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},
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key: function(key, soul, cb, o){
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var meta = {};
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meta[Gun._.soul] = soul = Gun.is.soul(soul) || soul;
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((all.keys = all.keys || {})[key] = all.keys[key] || {})[soul] = meta;
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writeFile(cb);
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},
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all: function(list, opt, cb) {
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opt = opt || {};
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opt.from = opt.from || '';
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opt.start = opt.from + (opt.start || '');
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if(opt.end){ opt.end = opt.from + opt.end }
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var match = {};
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cb = cb || function(){};
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Gun.obj.map(list, function(soul, key){
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var end = opt.end || key;
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if(key.indexOf(opt.from) === 0 && opt.start <= key && (key <= end || key.indexOf(end) === 0)){
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if(opt.upto){
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if(key.slice(opt.from.length).indexOf(opt.upto) === -1){
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yes(soul, key);
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}
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} else {
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yes(soul, key);
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}
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}
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});
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function yes(soul, key){
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cb(key);
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match[key] = {};
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match[key][Gun._.soul] = soul;
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}
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return match;
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}
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}}, true);
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gun.all = gun.all || function(url, cb) {
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url = require('url').parse(url, true);
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var r = gun.__.opt.hooks.all(all.keys, {
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from: url.pathname,
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upto: url.query['*'],
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start: url.query['*>'],
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end: url.query['*<']
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});
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console.log("All please", url.pathname, url.query['*'], r);
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cb = cb || function() {};
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cb(null, r);
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}
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});
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