[three]Bean

Fedora Photowall

Sep 04, 2014 | categories: python, fedora View Comments

If you didn't already know it, there is a Fedora Badge for associating a libravatar with your Fedora account.

https://badges.fedoraproject.org/pngs/mugshot.png

A fun by-product of having such a thing is that we have a list of FAS usernames of people who have public avatars with predictable URLs. With that, I wrote a script that pulls down that list and assembles a "photo wall" of a random subset. Check it out:

http://threebean.org/blog/static/images/montage2.png

I wrote it as a part of another project that I ended up junking, but the script is neat on its own.

Perhaps we can use it as a splash image for a Fedora website someday (say, next year's Flock site or a future iteration of FAS?). It might make a fun desktop wallpaper, too.

Here's the script if you'd like to re-use and modify. You can tweak the dimensions variable to change the number of rows and columns in the output.

#!/usr/bin/env python
""" fedora-photowall.py - Make a photo montage of Fedora contributors.

Dependencies:
 $ sudo yum install python-sh python-beautifulsoup4 python-requests ImageMagick

Usage:   python fedora-photowall.py
Author:  Ralph Bean
License: LGPLv2+

"""

import hashlib
import os
import random
import urllib

import sh
import bs4
import requests

dimensions = (12, 5)

datadir = './data'
avatar_dir = datadir + '/avatars'
montage_dir = datadir + '/montage'


def make_directories():
    try:
        os.makedirs(datadir)
    except OSError:
        pass

    try:
        os.makedirs(avatar_dir)
    except OSError:
        pass

    try:
        os.makedirs(montage_dir)
    except OSError:
        pass


def avatars(N):
    url = 'https://badges.fedoraproject.org/badge/mugshot/full'
    response = requests.get(url)
    soup = bs4.BeautifulSoup(response.text)
    last_pane = soup.findAll(attrs={'class': 'grid-100'})[-1]
    persons = last_pane.findAll('a')

    persons = random.sample(persons, N)

    for person in persons:
        name = person.text.strip()
        openid = 'http://%s.id.fedoraproject.org/' % name
        hash = hashlib.sha256(openid).hexdigest()
        url = "https://seccdn.libravatar.org/avatar/%s" % hash
        yield (name, url)


def make_montage(candidates):
    """ Pull down avatars to disk and stich with imagemagick """

    filenames = []
    for name, url in candidates:
        filename = os.path.join(avatar_dir, name)
        if not os.path.exists(filename):
            print "Grabbing", name, "at", url
            urllib.urlretrieve(url, filename=filename)
        else:
            print "Already have", name, "at", filename
        filenames.append(filename)

    args = filenames + [montage_dir + '/montage.png']
    sh.montage('-tile', '%ix%i' % dimensions, '-geometry', '+0+0', *args)
    print "Output in", montage_dir


def main():
    make_directories()
    N = dimensions[0] * dimensions[1]
    candidates = avatars(N)
    make_montage(candidates)

if __name__ == '__main__':
    main()

And another example of output:

http://threebean.org/blog/static/images/montage4.png

Cheers!

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