using git as database from python

libgit2.ipynb

{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "http://www.pygit2.org/objects.html#tree-entries"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Automatic calling is: Full\n",
      "\n",
      "Automagic is ON, % prefix IS NOT needed for line magics.\n"
     ]
    }
   ],
   "source": [
    "%autocall 2\n",
    "%automagic 1"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "from pygit2 import init_repository, Repository, IndexEntry\n",
    "from pygit2 import GIT_OBJ_ANY, GIT_OBJ_BLOB, GIT_OBJ_COMMIT, GIT_OBJ_TAG, GIT_OBJ_TREE, GIT_FILEMODE_BLOB\n",
    "from pygit2 import Oid, Reference, hashfile, Commit"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "metadata": {},
   "outputs": [],
   "source": [
    "repo = Repository('mygitrepo')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "#repo = init_repository(\"mygitrepo\", bare=False)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "30d74d258442c7c65512eafab474568dd706c430"
      ]
     },
     "execution_count": 5,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "repo.create_blob(\"test\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "<_pygit2.Blob at 0x10bd16ab0>"
      ]
     },
     "execution_count": 6,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "repo[\"30d74d258442c7c65512eafab474568dd706c430\"]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "blob_id = repo.create_blob(\"hallo welt\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "metadata": {
    "cell_style": "center"
   },
   "outputs": [],
   "source": [
    "entry = IndexEntry('README.md', blob_id, GIT_FILEMODE_BLOB)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "repo.index.add(entry)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 10,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "repo.index.write()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 13,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "\u001b[34mmygitrepo/\u001b[00m\r\n",
      "└── \u001b[34m.git\u001b[00m\r\n",
      "    ├── HEAD\r\n",
      "    ├── config\r\n",
      "    ├── description\r\n",
      "    ├── \u001b[34mhooks\u001b[00m\r\n",
      "    │   └── \u001b[31mREADME.sample\u001b[00m\r\n",
      "    ├── index\r\n",
      "    ├── \u001b[34minfo\u001b[00m\r\n",
      "    │   └── exclude\r\n",
      "    ├── \u001b[34mobjects\u001b[00m\r\n",
      "    │   ├── \u001b[34m30\u001b[00m\r\n",
      "    │   │   └── d74d258442c7c65512eafab474568dd706c430\r\n",
      "    │   ├── \u001b[34m45\u001b[00m\r\n",
      "    │   │   └── 1136b76ba422397e3bdc94680e2916ec1713e4\r\n",
      "    │   ├── \u001b[34minfo\u001b[00m\r\n",
      "    │   └── \u001b[34mpack\u001b[00m\r\n",
      "    └── \u001b[34mrefs\u001b[00m\r\n",
      "        ├── \u001b[34mheads\u001b[00m\r\n",
      "        └── \u001b[34mtags\u001b[00m\r\n",
      "\r\n",
      "11 directories, 8 files\r\n"
     ]
    }
   ],
   "source": [
    "!tree -la mygitrepo/"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "README.md\n"
     ]
    }
   ],
   "source": [
    "for entry in repo.index:\n",
    "    print(entry.path)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 24,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "!rm -rf mygitrepo/"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": []
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "Python 3",
   "language": "python",
   "name": "python3"
  },
  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
    "version": 3
   },
   "file_extension": ".py",
   "mimetype": "text/x-python",
   "name": "python",
   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython3",
   "version": "3.6.3"
  }
 },
 "nbformat": 4,
 "nbformat_minor": 2
}