Fetch latest Chrome releases information directly from Google's debian repository

GetLatestChromeReleases.py (text/plain), 1.70 KB, created by Martin Cyr on 2014-03-27 22:40:45 UTC

def parse_deb822(lines, section_delimiter = None):
    found_sections = []
    current_section = None
    last_key = None
    
    for l in lines:
        if (section_delimiter and l.startswith(section_delimiter + ':')) or not current_section:
            last_key = None
            current_section = {}
            found_sections.append(current_section)
        try:
            prefix_len = l.index(':')
            last_key = l[:prefix_len]
            current_section[last_key] = l[prefix_len + 1:].strip()
        except ValueError:
            if last_key and l[0] == ' ':
                try:
                    current_section[last_key].append(l.strip())
                except AttributeError:
                    if (len(current_section[last_key].strip()) == 0):
                        current_section[last_key] = [l.strip()]
                    else:
                        current_section[last_key] = [current_section[last_key], l.strip()]
    return found_sections

def fetch_url_lines(url):
    import urllib2
    f = urllib2.urlopen(url)
    lines = f.readlines()
    f.close()
    return lines

def get_packages(repo_url):
    # Fetch Release file to make sure we know where to look for Packages file
    all_pkg_src = parse_deb822(fetch_url_lines(repo_url + 'Release'))
    pkg_src = [p.split(' ')[2] for p in all_pkg_src[0]['SHA1'] if p.endswith('Packages')][0]
    # pkg_src is the repo subpath to Packages file
    pkgs = parse_deb822(fetch_url_lines(repo_url + pkg_src), 'Package')
    return pkgs

google_repo_url = "https://dl.google.com/linux/chrome/deb/dists/stable/"
pkgs = get_packages(google_repo_url)

for p in pkgs:
    print(p['Package'] + "-" + p['Version'] + " at " + google_repo_url +  p['Filename'])