Github_check python script for Grasshopper : a component that request github server to get the last commit's comment for a specific file

Github_check.py

#
# Github_check : a component that request github server to get the last commit's comment for a specific file
# 
# This file is part Elioth toolbox
# 
# Copyright (c) 2015, Guillaume Meunier <alliages@gmail.com> 
# Github_check is free software; you can redistribute it and/or modify 
# it under the terms of the GNU General Public License as published 
# by the Free Software Foundation; either version 3 of the License, 
# or (at your option) any later version. 
# 
# Github_check is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of 
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 
# GNU General Public License for more details.
# 
# You should have received a copy of the GNU General Public License
# along with Github_check; If not, see <http://www.gnu.org/licenses/>.
# 
# @license GPL-3.0+ <http://spdx.org/licenses/GPL-3.0+>


#------------------------------
# INFORMATION
# API rate limit can be exceeded, but here's the good news: Authenticated requests get a higher rate limit. Check out the documentation for more details.
# https://developer.github.com/v3/#rate-limiting
#------------------------------

"""
This component request github server to get the last commit's comment for a specific file
-
Provided by Guillaume Meunier

    Args:
        github [STR] : name of the github repository to request USERNAME/REPO_NAME
        script [STR]: name of the script you re looking for
        check [BOOL]: do the check?
        authorization [BOOL] : does it need authentification?
        token [STR]: the token for authorization
    Returns:
        version: the commit's comment
"""
ghenv.Component.Name = "Check_Github"
ghenv.Component.NickName = 'checkgithub'
ghenv.Component.Message = 'VER 0.1\nNOV_2015'
ghenv.Component.Category = "Elioth"
ghenv.Component.SubCategory = "Basic"
try: ghenv.Component.AdditionalHelpFromDocStrings = "1"
except: pass

import System
import json
import Grasshopper.Kernel as gh

def github_connect(address, authToken):
    r = System.Net.WebRequest.Create(address)
    if authorization:
        r.Headers.Add("Authorization", authToken)
    r.AutomaticDecompression = System.Net.DecompressionMethods.GZip | System.Net.DecompressionMethods.Deflate
    r.UserAgent = "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:38.0) Gecko/20100101 Firefox/38.0"
    try:
        resp = r.GetResponse()
    except Exception, e:
            msg_e = "\nError in github get fonction\nwrong username?\nwrong repo?\ntry with authorization?\nAPI rate limit exceeded?\ncheck : "+address
            print `e` + msg_e
            ghenv.Component.AddRuntimeMessage(gh.GH_RuntimeMessageLevel.Warning, msg_e)
            return 
    respS = resp.GetResponseStream()
    sr = System.IO.StreamReader(respS, System.Text.Encoding.GetEncoding(1252))
    jsonR = sr.ReadToEnd()
    sr.Close()
    resp.Close()
    return jsonR

def main():
    if authorization:
        if token == None:
            return "Need a token!",False
        authToken = "token "+token
    else:
        authToken=""
    if script == None:
        return "You need a script name", False
    jsonR_commits = github_connect(address, authToken)
    if jsonR_commits == None:
        return "",False
    data_commits = json.loads(jsonR_commits.ToString())
    for i in data_commits:
        if not (i['url'].ToString() == None):
            jsonR_file = github_connect(i['url'].ToString(), authToken)
        data_file = json.loads(jsonR_file.ToString())
        nom = data_file["files"][0]["filename"]
        if script == nom:
            message = data_file["commit"]["message"]
            version = message
            return message, True

if check :
    if github == None:
        msg_e = "You need a repository like USERNAME/REPO_NAME"
        print msg_e
        ghenv.Component.AddRuntimeMessage(gh.GH_RuntimeMessageLevel.Warning, msg_e)
    else:
        if github[-1] == "/":
            github = github[:-1]
        if github[0] == "/":
            github = github[1:]
        address = "https://api.github.com/repos/" + github + "/commits"
        msg, success = main()
        if not success:
            ghenv.Component.AddRuntimeMessage(gh.GH_RuntimeMessageLevel.Warning, msg)
            print msg
        else:
           version = msg
           print "Done!"
else:
    print " "

information : http://www.grasshopper3d.com/forum/topics/component-that-request-github-server-to-get-the-last-commit-s