Git log to JSON

git2json.py

# install pygit2:  pip install pygit2

import pygit2
import json

repo = pygit2.Repository('path/to/repository')
last = repo[repo.head.target]
data = []

for commit in repo.walk(last.id):
    data.append({
        'hash': str(commit.id),
        'message': commit.message,
        'author': {
            'name': commit.author.name, 
            'email': commit.author.email, 
            'time': commit.author.time,
        },
        'committer': {
            'name': commit.committer.name, 
            'email': commit.committer.email, 
            'time': commit.committer.time,
        },
       'changes': len(repo.diff(commit.tree, commit.parents[0])) if commit.parents else 0,
        })


json = json.dumps(data, indent=4)
print(json)