latest passing commit with itertools

gistfile1.txt

import itertools

test1 = [
        ('3df947df42a13686382b47a73ca12b2fe535f5a3', ''),
        ('1d6018219ba9eaeb209f31e91b7d56b77d4fbfc3', 'passed'),
        ('7295f7c3606109789228ab48c23a7807ec8a3f61', ''),
        ('ba39eb2f561ef668f0569c57a8ee0e549b05049c', ''),
        ('f845f3fe4e45e9137da68b45ef43e0611659f4ab', ''),
        ('ef7e74c7d89faec970e7cae961fd58e45cb69175', ''),
        ('77255a3aa08d493252d1fb3e2c19967bf4253a59', 'passed'),
        ('573d1455c93e895d4b1960b9b4ad9cd53c022a3a', ''),
        ('7b1ecbe27beaafc70067285ab86de09662c4c5d5', ''),
        ('ed578beae9d397cb12ffdd82cca1925744a64db0', ''),
        ('e66f1067d64d492683b9210ca8dde57b37d74f9d', ''),
        ('f60d33430375afa33a36532d9ce947db7689b5c0', ''),
        ('7e152c03c9a1573e11ef8674d24c9c03b2efcbaf' '')
]

test2 = [
        ('3df947df42a13686382b47a73ca12b2fe535f5a3', ''),
        ('1d6018219ba9eaeb209f31e91b7d56b77d4fbfc3', ''),
        ('7295f7c3606109789228ab48c23a7807ec8a3f61', ''),
        ('ba39eb2f561ef668f0569c57a8ee0e549b05049c', 'passed'),
        ('f845f3fe4e45e9137da68b45ef43e0611659f4ab', ''),
        ('ef7e74c7d89faec970e7cae961fd58e45cb69175', ''),
        ('77255a3aa08d493252d1fb3e2c19967bf4253a59', 'passed'),
        ('573d1455c93e895d4b1960b9b4ad9cd53c022a3a', ''),
        ('7b1ecbe27beaafc70067285ab86de09662c4c5d5', ''),
        ('ed578beae9d397cb12ffdd82cca1925744a64db0', ''),
        ('e66f1067d64d492683b9210ca8dde57b37d74f9d', ''),
        ('f60d33430375afa33a36532d9ce947db7689b5c0', ''),
        ('7e152c03c9a1573e11ef8674d24c9c03b2efcbaf' '')
]

test3 = [
        ('3df947df42a13686382b47a73ca12b2fe535f5a3', ''),
        ('1d6018219ba9eaeb209f31e91b7d56b77d4fbfc3', ''),
        ('7295f7c3606109789228ab48c23a7807ec8a3f61', ''),
        ('ba39eb2f561ef668f0569c57a8ee0e549b05049c', ''),
        ('f845f3fe4e45e9137da68b45ef43e0611659f4ab', 'passed'),
        ('ef7e74c7d89faec970e7cae961fd58e45cb69175', ''),
        ('77255a3aa08d493252d1fb3e2c19967bf4253a59', 'passed'),
        ('573d1455c93e895d4b1960b9b4ad9cd53c022a3a', ''),
        ('7b1ecbe27beaafc70067285ab86de09662c4c5d5', ''),
        ('ed578beae9d397cb12ffdd82cca1925744a64db0', ''),
        ('e66f1067d64d492683b9210ca8dde57b37d74f9d', ''),
        ('f60d33430375afa33a36532d9ce947db7689b5c0', ''),
        ('7e152c03c9a1573e11ef8674d24c9c03b2efcbaf' '')
]

def all_passed(tup):
    print (tup)

    shas = set( sha for (sha,value) in tup)
    assert len(shas) == 1

    values = set( value for (sha,value) in tup)
    return (len(values) == 1) and ('passed' in values)

def get_first(*commit_logs):
    stream = itertools.izip(*commit_logs)
    passed = itertools.ifilter( all_passed, stream )
    commit = next(passed)
    return commit[0][0]

print get_first(test1, test2, test3)