Remove old snap data for uninstalled snap apps with Python

#!/usr/bin/env python3

import os
import shutil
import subprocess as sp

def get_installed_snaps():
    '''Collect installed snaps.'''
    snap_names = []
    result = sp.run(["snap", "list"], capture_output=True, text=True, check=True)
    if not result.stderr:
        raw_list =  result.stdout.split('\n')
        for app in raw_list:
            if not app: continue
            snap_names.append(app.split()[0].strip().lower())
    return snap_names

def get_snap_folders():
    '''Collect all snap app folders.'''
    snap_confs = {}
    home = os.path.join(os.environ['HOME'],"snap")
    for folder in os.listdir(home):
        if not folder.strip(): continue
        snap_confs[folder]=os.path.join(home,folder.strip().lower())
    return snap_confs

# User defined.
preserve = ["some_app_name", "another"] # Make sure the name is lowercase and matches exactly what is found.
do_delete = False

# Main
installed = get_installed_snaps()
configs = get_snap_folders()

for appnm,apppth in configs.items():

    if appnm not in installed:
    
        if appnm.lower() in preserve: 
            continue
            
        print('removing ', apppth)

        if do_delete:
            shutil.rmtree(apppth)

#!/usr/bin/env python3

​

import os

import shutil

import subprocess as sp

​

def get_installed_snaps():

    '''Collect installed snaps.'''

    snap_names = []

    result = sp.run(["snap", "list"], capture_output=True, text=True, check=True)

    if not result.stderr:

        raw_list =  result.stdout.split('\n')

        for app in raw_list:

            if not app: continue

            snap_names.append(app.split()[0].strip().lower())

    return snap_names

​

def get_snap_folders():

    '''Collect all snap app folders.'''

    snap_confs = {}

    home = os.path.join(os.environ['HOME'],"snap")

    for folder in os.listdir(home):

        if not folder.strip(): continue

        snap_confs[folder]=os.path.join(home,folder.strip().lower())

    return snap_confs

​

# User defined.

preserve = ["some_app_name", "another"] # Make sure the name is lowercase and matches exactly what is found.

do_delete = False

​

# Main

installed = get_installed_snaps()

configs = get_snap_folders()

​

for appnm,apppth in configs.items():

​

    if appnm not in installed:

        if appnm.lower() in preserve: 

            continue

        print('removing ', apppth)

​

        if do_delete:

            shutil.rmtree(apppth)