88 lines
3.2 KiB
Python
88 lines
3.2 KiB
Python
import subprocess
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from AbstractModule import AbstractModule
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from PyInquirer import prompt
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class SwapModule(AbstractModule):
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def __init__(self):
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super().__init__()
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self.swap_file = None
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def run(self):
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actions = ["Create/Resize", "Delete", "Get location", "Get swap size"]
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menu = [
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{
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'type': 'list',
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'message': 'Select action',
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'name': 'action',
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'choices': list(map(lambda x: {"name": x}, actions))
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}
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]
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selected_action = prompt(menu)['action']
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if selected_action is "Create/Resize":
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self.create_resize_swap()
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elif selected_action is "Delete":
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self.delete_swap()
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elif selected_action is "Get location":
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self.swap_location_check()
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elif selected_action is "Get swap size":
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self.get_swap_size()
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def swap_location_check(self) -> None:
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output_swaps = subprocess.check_output(['cat', '/proc/swaps']).decode("UTF-8")
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li = list(output_swaps.split())
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final_list = li
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try:
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print("Swap is located here:", final_list[5])
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self.swap_file = final_list[5]
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except IndexError:
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print("Swap file doesn´t exist!\n")
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def get_swap_size(self) -> None:
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swap_size = subprocess.check_output(['swapon', '--show']).decode("UTF-8")
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li = list(swap_size.split())
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final_list = li
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try:
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print("Swap is {}b big!".format(final_list[7]))
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except IndexError:
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print("Swap file doesn´t exist!")
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def create_resize_swap(self):
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output_swapon = subprocess.check_output(['swapon', '--show']).decode("UTF-8")
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if not output_swapon:
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size = input("How big should the swap be(numbers in Gigabyte)? ")
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create_swapfile = """sudo fallocate -l {}G /swapfile &&
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sudo chmod 600 /swapfile &&
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sudo mkswap /swapfile &&
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sudo swapon /swapfile""".format(size)
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subprocess.call(create_swapfile, shell=True)
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output_free = subprocess.check_output(['free', '-h']).decode("UTF-8")
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print(output_free.strip())
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else:
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print("")
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print("Swap already installed! You can resize it!")
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resize = input("How big should your swap become(numbers in Gigabyte)? ")
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resize_swapfile = """sudo swapoff /swapfile &&
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sudo fallocate -l {}G /swapfile &&
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sudo mkswap /swapfile &&
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sudo swapon /swapfile""".format(resize)
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subprocess.call(resize_swapfile, shell=True)
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output_free = subprocess.check_output(['free', '-h']).decode("UTF-8")
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print(output_free.strip())
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def delete_swap(self):
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self.swap_location_check()
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disable_swapfile = """sudo swapoff {0} &&
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sudo rm {0}""".format(self.swap_file)
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subprocess.call(disable_swapfile, shell=True)
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output_swapon = subprocess.check_output(['swapon', '--show']).decode("UTF-8")
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output_free = subprocess.check_output(['free', '-h']).decode("UTF-8")
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if not output_swapon:
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print("Swap deleted!")
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print(output_free.strip())
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