From 369b6904b25e9c9df8d5faa331679297f7536fd6 Mon Sep 17 00:00:00 2001
From: K4YT3X <k4yt3x@k4yt3x.com>
Date: Thu, 29 Nov 2018 15:08:15 -0500
Subject: [PATCH] 1.0.0 added automatic setup script

---
 video2x_setup.py | 167 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 167 insertions(+)
 create mode 100644 video2x_setup.py

diff --git a/video2x_setup.py b/video2x_setup.py
new file mode 100644
index 0000000..fcd745f
--- /dev/null
+++ b/video2x_setup.py
@@ -0,0 +1,167 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+"""
+Name: Video2X Setup Script
+Author: K4YT3X
+Date Created: November 28, 2018
+Last Modified: November 29, 2018
+
+Licensed under the GNU General Public License Version 3 (GNU GPL v3),
+    available at: https://www.gnu.org/licenses/gpl-3.0.txt
+
+(C) 2018 K4YT3X
+
+Description: This script helps installing all dependencies of video2x
+and generates a configuration for it.
+
+Installation Details:
+- ffmpeg: %LOCALAPPDATA%\\video2x\\ffmpeg
+- waifu2x-caffe: %LOCALAPPDATA%\\video2x\\waifu2x-caffe
+
+"""
+import json
+import os
+import subprocess
+import tempfile
+import traceback
+import zipfile
+
+# Requests doesn't come with windows, therefore
+# it will be installed as a dependency and imported
+# later in the script.
+# import requests
+
+VERSION = '1.0.0'
+
+
+class Video2xSetup:
+    """ Install dependencies for video2x video enlarger
+
+    This library is meant to be executed as a stand-alone
+    script. All files will be installed under %LOCALAPPDATA%\\video2x.
+    """
+
+    def __init__(self):
+        self.trash = []
+
+    def run(self):
+
+        print('\nInstalling Python libraries')
+        self._install_python_requirements()
+
+        print('\nInstalling FFMPEG')
+        self._install_ffmpeg()
+
+        print('\nInstalling waifu2x-caffe')
+        self._install_waifu2x_caffe()
+
+        print('\nGenerating Video2X configuration file')
+        self._generate_config()
+
+        print('\nCleaning up temporary files')
+        self._cleanup()
+
+    def _install_python_requirements(self):
+        """ Read requirements.txt and return its content
+        """
+        with open('requirements.txt', 'r') as req:
+            for line in req:
+                package = line.split(' ')[0]
+                pip_install(package)
+
+    def _cleanup(self):
+        """ Cleanup all the temp files downloaded
+        """
+        for file in self.trash:
+            try:
+                print('Deleting: {}'.format(file))
+                os.remove(file)
+            except FileNotFoundError:
+                pass
+
+    def _install_ffmpeg(self):
+        """ Install FFMPEG
+        """
+        latest_release = 'https://ffmpeg.zeranoe.com/builds/win64/static/ffmpeg-4.1-win64-static.zip'
+
+        ffmpeg_zip = download(latest_release, tempfile.gettempdir())
+        self.trash.append(ffmpeg_zip)
+
+        with zipfile.ZipFile(ffmpeg_zip) as zipf:
+            zipf.extractall('{}\\video2x'.format(os.getenv('localappdata')))
+
+    def _install_waifu2x_caffe(self):
+        """ Install waifu2x_caffe
+        """
+        import requests
+
+        # Get latest release of waifu2x-caffe via GitHub API
+        latest_release = json.loads(requests.get('https://api.github.com/repos/lltcggie/waifu2x-caffe/releases/latest').content)
+
+        for a in latest_release['assets']:
+            if 'waifu2x-caffe.zip' in a['browser_download_url']:
+                waifu2x_caffe_zip = download(a['browser_download_url'], tempfile.gettempdir())
+                self.trash.append(waifu2x_caffe_zip)
+
+        with zipfile.ZipFile(waifu2x_caffe_zip) as zipf:
+            zipf.extractall('{}\\video2x'.format(os.getenv('localappdata')))
+
+    def _generate_config(self):
+        """ Generate video2x config
+        """
+        settings = {}
+
+        settings['waifu2x_path'] = '{}\\video2x\\waifu2x-caffe\\waifu2x-caffe-cui.exe'.format(os.getenv('localappdata'))
+        settings['ffmpeg_path'] = '{}\\video2x\\ffmpeg-4.1-win64-static\\bin'.format(os.getenv('localappdata'))
+        settings['ffmpeg_arguments'] = ''
+        settings['ffmpeg_hwaccel'] = 'cuda'
+
+        with open('video2x.json', 'w') as config:
+            json.dump(settings, config, indent=2)
+            config.close()
+
+
+def download(url, save_path, chunk_size=4096):
+    """ Download file to local with requests library
+    """
+    import requests
+
+    output_file = '{}\\{}'.format(save_path, url.split('/')[-1])
+    print('Downloading: {}'.format(url))
+    print('Chunk size: {}'.format(chunk_size))
+    print('Saving to: {}'.format(output_file))
+
+    stream = requests.get(url, stream=True)
+
+    # Write content into file
+    with open(output_file, 'wb') as output:
+        for chunk in stream.iter_content(chunk_size=chunk_size):
+            if chunk:
+                print('!', end='')
+                output.write(chunk)
+    print()
+
+    return output_file
+
+
+def pip_install(package):
+    """ Install python package via python pip module
+
+    pip.main() is not available after pip 9.0.1, thus
+    pip module is not used in this case.
+    """
+    return subprocess.run(['python', '-m', 'pip', 'install', '-U', package]).returncode
+
+
+if __name__ == "__main__":
+    try:
+        print('Video2x Setup Script')
+        print('Version: {}'.format(VERSION))
+        setup = Video2xSetup()
+        setup.run()
+        print('\n Script finished successfully')
+    except Exception:
+        traceback.print_exc()
+        print('An error has occurred')
+        print('Video2X Automatic Setup has failed')
+        exit(1)