update-subs

#! /usr/bin/env node

//
// Find all video files recursively and download an srt for them
//

// search for video files below this point
var root = "/volume1/video"

var fs        = require('fs')
var domain    = require('domain')
var path      = require('path')
var subdb     = require('/volume1/@appstore/Node.js/usr/lib/node_modules/subdb-cli/lib/subdb-cli.js')
//var recursive = require('/root/readdirr.js');

//
// thanks to https://gist.github.com/simov/4132717
//
var dir = null, file = null;

function readdirr (dpath, cb) {
    dir = [], file = [];
    dir.push(dpath);
    function loop (i) {
        if (i == dir.length) return cb(null, dir, file);
        fs.readdir(dir[i], function (err, files) {
            if (err) return cb(err);
            getstat(dir[i], files, function (err) {
                if (err) return cb(err);
                loop(++i);
            });
        });
    }
    loop(0);
}

// my version skips symbolic links

function getstat (dpath, files, cb) {
    function loop (i) {
        if (i == files.length) return cb();
        var fpath = path.join(dpath, files[i]);
        fs.lstat(fpath, function (err, stats) {
            if (err) return cb(err);
            if (!stats.isSymbolicLink()) {
		if (stats.isDirectory()) {
                    dir.push(fpath);
		} else {
                    file.push(fpath);
		}
	    }
            loop(++i);
        });
    }
    loop(0);
}

// callback to readdirr, which will fire at every directory

var cb = function (err, dir, files) {
    for (i in files) {
	var file=files[i]
	var ext

	if ((extpos = file.search(/\.(m4v|avi|mkv|mp4)$/)) > -1) {
	    var body = file.substr(0, extpos);
	    console.log("considering " + files[i])

	    var subfile = body + ".srt"
	    if (fs.existsSync(subfile)) { 
		console.log("skipping subfile");
	    }
	    else {
		console.log("fetching " + file)
		d = domain.create();
		d.on('error', function(err) {
		  console.error(err);
		  });	
		subdb.download(file, "en")
	    }
	}
    }

    if (err) {
        console.log(err);
    }
};

readdirr(root, cb);