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https://github.com/Jermolene/TiddlyWiki5
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24 lines
844 B
JavaScript
24 lines
844 B
JavaScript
/*
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FileRetriever can asynchronously retrieve files from HTTP URLs or the local file system. It incorporates
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throttling so that we don't get error EMFILE "Too many open files".
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*/
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var fs = require("fs"),
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utils = require("./Utils.js");
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var FileRetriever = exports;
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var fileRequestQueue = utils.queue(function(task,callback) {
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fs.readFile(task.filepath,"utf8", function(err,data) {
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callback(err,data);
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});
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},10);
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// Retrieve a file given a filepath specifier and a context path. If the filepath isn't an absolute
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// filepath or an absolute URL, then it is interpreted relative to the context path, which can also be
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// a filepath or a URL. On completion, the callback function is called as callback(err,data)
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FileRetriever.retrieveFile = function(filepath,contextPath,callback) {
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fileRequestQueue.push({filepath: filepath},callback);
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}
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