Installation script for windows platform

installation.py

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+from urllib.request import urlretrieve
+from zipfile import ZipFile
+from platform import system
+from os.path import join
+from os.path import isdir
+from os.path import isfile
+from os import remove
+from os import mkdir
+from os import getenv
+from os import listdir
+from distutils.dir_util import copy_tree
+from shutil import rmtree
+from subprocess import Popen
+
+
+class Installation:
+    def __init__(self, languages: tuple):
+        self._install_path = getenv('LOCALAPPDATA')
+        self._apertium_path = join(self._install_path, 'apertium-all-dev')
+
+        self._temp_path = getenv('TEMP')
+
+        self._download_path = join(self._temp_path, 'apertium_temp')
+
+        # Remove abandoned files from previous incomplete install
+        if isdir(self._download_path):
+            rmtree(self._download_path)
+
+        mkdir(self._download_path)
+
+        self._languages = languages
+
+    def _download_zip(self, download_files: dict, download_dir, extract_path):
+
+        for zip_name, zip_link in download_files.items():
+            zip_download_path = join(download_dir, zip_name)
+            urlretrieve(zip_link, filename=zip_download_path)
+            print("{} download completed".format(zip_name))
+
+            # Extact the zip
+            zip_obj = ZipFile(zip_download_path, 'r')
+            zip_obj.extractall(path=extract_path)
+            zip_obj.close()
+            print("Extraction completed")
+            remove(zip_download_path)
+            print("zip removed")
+
+    def download_apertium_windows(self):
+        """Installs Apertium-all-dev to %localappdata%"""
+
+        download_dir = self._download_path
+        extract_path = self._install_path
+
+        apertium_windows = {
+            'apertium-all-dev.zip':
+                'http://apertium.projectjj.com/win64/nightly/apertium-all-dev.zip',
+        }
+
+        self._download_zip(apertium_windows, download_dir, extract_path)
+
+    def download_language_data(self):
+        """Installs Language Data to Apertium"""
+
+        download_dir = self._download_path
+        extract_path = self._download_path
+
+        language_zip = dict()
+        for curr_lang in self._languages:
+            language_link = f'http://apertium.projectjj.com/win32/nightly/data.php?zip={curr_lang}'
+            language_zip[curr_lang] = language_link
+
+        self._download_zip(language_zip, download_dir, extract_path)
+
+        # move the extracted files to desired location
+        lang_data_path = join(self._download_path, 'usr', 'share', 'apertium')
+
+        print("Copying Language Data to Apertium")
+        for directory in listdir(lang_data_path):
+            source = join(lang_data_path, directory)
+            destination = join(self._apertium_path, 'share', 'apertium', directory)
+            copy_tree(source, destination)
+            print(source, '->', destination)
+
+        rmtree(join(extract_path, 'usr'))
+
+    def mode_editor(self):
+        """The mode files need to be modified before being used on Windows System
+
+        1. Replace /usr/share with %localappdata%\apertium-all-dev\share
+        2. Replace '/' with '\' to make path compatible with Windows System
+        3. Remove single quotes as it causes FileNotFound Error
+        """
+
+        # List of Mode Files
+        mode_path =  join(self._apertium_path, 'share', 'apertium', 'modes')
+        only_files = [f for f in listdir(mode_path) if isfile(join(mode_path, f)) and
+                      'mode' in f]
+
+        for file in only_files:
+            print(f"Opening {file} for editing")
+            infile = open(join(mode_path, file), 'r')
+            line = infile.read()
+            infile.close()
+            contents = line.split(' ')
+
+            # Editing mode file to be compatible with windows platform
+            for index, t in enumerate(contents):
+                if len(t) > 2 and t[0] == "'" and t[1] == "/":
+                    t = t.replace('/', '\\')
+                    t = t.replace(r'\usr', self._apertium_path)
+
+                    # Instead of calling eng.autogen.bin, cmd calls 'eng.autogen.bin'
+                    # Raising Error: 'File can't be opened error'
+                    # Hence removing quotes from file
+                    t = t.replace("'", '')
+                    contents[index] = t
+
+            line = ' '.join(contents)
+            outfile = open(join(mode_path, file), 'w')
+            outfile.write(line)
+            outfile.close()
+            print(f"Closing {file}")
+
+    def add_to_system_path(self):
+        """Set System Variable: Path, using SETX
+         SETX is preferred over SET as
+         SETX modifies the value permanently, whereas
+         SET modifies the current shell's  environment values,
+         but it is temporary"""
+
+        curr_path_value = getenv('PATH')
+        if 'apertium' in curr_path_value:
+            print('Apertium path already exists in System Variable')
+            print('No changes done to System Variable')
+        else:
+            apertium_bin_path = join(self._apertium_path, 'bin')
+            Popen(['SETX', 'path', rf'{curr_path_value}\{apertium_bin_path};'])
+            print('Added path to System Variable')
+
+
+def main():
+
+    # Download ApertiumWin64 and Move to %localappdata%
+
+    p = Installation(('apertium-eng', 'apertium-en-es'))
+    p.download_apertium_windows()
+    p.download_language_data()
+    p.mode_editor()
+    p.add_to_system_path()
+
+if __name__ == '__main__':
+    if system() == 'Windows':
+        main()