import os.path

from rawcommit import RawCommit
from commit import Commit

def getCommitList(repo):
    """returns a list of commits from a repository log"""
    try:
        stream = os.popen("git -C {} log --format=%B--SEP--%H--SEP--%d--END--".format(repo)) # formatted log
    except:
        raise ValueError("Not a valid git-repository!")
    else:
        gitLog = stream.read()
        commitList = gitLog.split("--END--") # separation of individual commits
        del commitList[-1] # deletes empty last element

        rawCommitList = []
        for commit in commitList: # convert every commit into Commit via RawCommit
            rawCommitList.append(Commit(RawCommit(commit)))
        return commitList