From 5e7c4a1b060df5e35123b786afda143e950355e3 Mon Sep 17 00:00:00 2001
From: Vinicius Moreira <vinicius_fmoreira@hotmail.com>
Date: Wed, 27 Nov 2019 13:22:01 -0300
Subject: [PATCH] [feature] new parameter --clean to remove configuration and
 cache files

---
 CHANGELOG.md           |  5 ++++-
 README.md              |  3 +++
 bauh/api/constants.py  |  1 +
 bauh/app.py            |  5 +++++
 bauh/app_args.py       |  1 +
 bauh/view/util/util.py | 11 +++++++++++
 6 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index f394ff33..94d6e02e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -19,7 +19,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - i18n:
     - Catalan contributions by [fitojb](https://github.com/fitojb)
     - German contributions by [JonasLoos](https://github.com/JonasLoos)
-    - Italian contributions by [albanobattistella](https://github.com/albanobattistella)   
+    - Italian contributions by [albanobattistella](https://github.com/albanobattistella)
+    
+### Features
+- New command line argument to clean the configuration and cache files: `--clean`   
      
 ### Fixes
 - Flatpak
diff --git a/README.md b/README.md
index d2654fb5..3f151152 100644
--- a/README.md
+++ b/README.md
@@ -87,6 +87,9 @@ Icon=/home/$USER/bauh_env/lib/python3.7/site-packages/bauh/view/resources/img/lo
 ### Autostart
 In order to autostart the application, use your Desktop Environment settings to register it as a startup application / script (**bauh --tray=1**).
 
+### Uninstallation
+Before uninstalling bauh via your package manager, consider executing `bauh --clean` to remove configuration and cache files stored in your **HOME** folder.
+
 ### Gems ( package technology support )
 #### Flatpak ( flatpak )
 - The user is able to search, install, uninstall, downgrade, launch and retrieve the applications history
diff --git a/bauh/api/constants.py b/bauh/api/constants.py
index e216d7f2..2eceab3a 100644
--- a/bauh/api/constants.py
+++ b/bauh/api/constants.py
@@ -2,3 +2,4 @@ from pathlib import Path
 
 HOME_PATH = Path.home()
 CACHE_PATH = '{}/.cache/bauh'.format(HOME_PATH)
+CONFIG_PATH = '{}/.config/bauh'.format(HOME_PATH)
diff --git a/bauh/app.py b/bauh/app.py
index 89140feb..25a5ce61 100755
--- a/bauh/app.py
+++ b/bauh/app.py
@@ -25,9 +25,14 @@ def main():
         os.environ['PYTHONUNBUFFERED'] = '1'
 
     args = app_args.read()
+
     logger = logs.new_logger(__app_name__, bool(args.logs))
     app_args.validate(args, logger)
 
+    if args.clean:
+        util.clean_app_files()
+        exit(0)
+
     i18n_key, current_i18n = translation.get_locale_keys(args.locale)
     default_i18n = translation.get_locale_keys(DEFAULT_I18N_KEY)[1] if i18n_key != DEFAULT_I18N_KEY else {}
     i18n = I18n(current_i18n, default_i18n)
diff --git a/bauh/app_args.py b/bauh/app_args.py
index ee7ab010..8e551f1c 100644
--- a/bauh/app_args.py
+++ b/bauh/app_args.py
@@ -36,6 +36,7 @@ def read() -> Namespace:
     parser.add_argument('--logs', action="store", default=int(os.getenv('BAUH_LOGS', 0)), choices=[0, 1], type=int, help='If the application logs should be displayed. Default: %(default)s')
     parser.add_argument('--show-panel', action="store_true", help='Shows the management panel after the app icon is attached to the tray.')
     parser.add_argument('-dmt', '--download-mthread', action="store", default=os.getenv('BAUH_DOWNLOAD_MULTITHREAD', 1), choices=[0, 1], type=int, help='If installation files should be downloaded using multi-threads (only possible if aria2c is installed). Not all gems support this feature. Check README.md. Default: %(default)s')
+    parser.add_argument('--clean', action="store_true", help='Removes all configuration and cache files')
     return parser.parse_args()
     
     
diff --git a/bauh/view/util/util.py b/bauh/view/util/util.py
index c4ffb795..a6ed4374 100644
--- a/bauh/view/util/util.py
+++ b/bauh/view/util/util.py
@@ -1,10 +1,12 @@
 import os
+import shutil
 import subprocess
 import sys
 
 from PyQt5.QtCore import QCoreApplication
 
 from bauh import __app_name__
+from bauh.api.constants import CACHE_PATH, CONFIG_PATH
 from bauh.commons.system import run_cmd
 from bauh.view.util import resource
 
@@ -36,3 +38,12 @@ def get_distro():
             return 'ubuntu'
 
     return 'unknown'
+
+
+def clean_app_files():
+    print('[bauh] Cleaning configuration and cache files')
+    for path in (CACHE_PATH, CONFIG_PATH):
+        print('[bauh] Deleting directory {}'.format(path))
+        if os.path.exists(path):
+            shutil.rmtree(path)
+    print('[bauh] Cleaning finished')