CODEWITHSUNDEEP
javascripthtmlfilenode.jsfile-type
littlejim84
littlejim84

Reputation: 9271

In Node.js, reading a directory of .html files and searching for element attributes inside them?

I can't even begin to think about how this would be done. Basically, imagine a folder and it has a static website in it. It has all the images, styles and html files etc. With my Node application, I want to look inside this folder, get just the .html files only and then pick just the .html files that have the attribute 'data-template="home"' inside them.

I know this seems a little odd maybe, but it's for a project that requires the user to upload their static website files and then my Node app does things to them files.

Anyhow, was just curious about iterating over certain filetypes and then looking inside them... Any help with approaching this would really help me.

Many thanks, James

Upvotes: 23

Views: 29777

Answers (2)

mak
mak

Reputation: 13405

This piece of code will scan for all files in a directory, then read the contents of .html files and then look for a string data-template="home" in them.

var fs = require('fs');

fs.readdir('/path/to/html/files', function(err, files) {
    files
         .filter(function(file) { return file.substr(-5) === '.html'; })
         .forEach(function(file) { fs.readFile(file, 'utf-8', function(err, contents) { inspectFile(contents); }); });
});

function inspectFile(contents) {
    if (contents.indexOf('data-template="home"') != -1) {
        // do something
    }
}

If you need more flexibility, you could also use the cheerio module to look for an element in the html file with that attribute:

var cheerio = require('cheerio');

function inspectFile(contents) {
    var $ = cheerio.load(contents);

    if ($('html[data-template="home"]').length) {
        // do something
    }
}

Upvotes: 55

shelman
shelman

Reputation: 2699

Take a look at the nodejs filesystem module

http://nodejs.org/docs/v0.5.3/api/fs.html

You could use fs.readdir() to get the names of all the files, then read the .html ones to find 'data-template=home'.

Upvotes: 2

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