homebrew_pothos_update

#!/usr/bin/env python3

import os
import re
import sys
import requests
from hashlib import sha256
from pothos_scripts_common import *

def main():
    if len(sys.argv) != 2:
        print("Usage: %s [root path]"%sys.argv[0])
        exit(-1)
    ROOT = os.path.abspath(sys.argv[1])

    homebrew_pothos_dir = os.path.join(ROOT, 'homebrew-pothos')
    for fname in os.listdir(homebrew_pothos_dir):
        if not fname.endswith('.rb'): continue
        fpath = os.path.join(homebrew_pothos_dir, fname)
        outlines = list()
        newSha256 = None
        print('Processing %s'%fpath)
        for line in open(fpath).readlines():
            m = re.match('\s*url\s+"https://github.com/pothosware/(.+)/archive/(.+).tar.gz"', line.strip())
            if m:
                repoName = m.groups()[0]
                currTag = m.groups()[1]
                repoDir = os.path.join(ROOT, repoName)
                git_cmd(repoDir, 'remote', 'update')
                tags = git_cmd(repoDir, 'tag', '-n', '--sort', 'taggerdate').strip().splitlines()
                latestTag = tags[-1].split()[0]
                print(latestTag)
                if latestTag != currTag:
                    print('  Update recipe %s from %s -> %s'%(repoName, currTag, latestTag))
                    newUrl = 'https://github.com/pothosware/%s/archive/%s.tar.gz'%(repoName, latestTag)
                    print('  Downloading %s'%newUrl)
                    r = requests.get(newUrl)
                    r.raise_for_status()
                    newSha256 = sha256(r.content).hexdigest()
                    line = line.replace(currTag, latestTag)
            m = re.match('\s*sha256\s+"(.+)"', line.strip())
            if newSha256 and m:
                line = line.replace(m.groups()[0], newSha256)
            outlines.append(line)
        if newSha256:
            open(fpath, 'w').write(''.join(outlines))
            print('  Updated %s'%fpath)

if __name__ == '__main__': main()