167 lines
3.3 KiB
Python
Executable file
167 lines
3.3 KiB
Python
Executable file
#!/usr/bin/env python3
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"""
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developomp's arch linux setup script
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This file is all that's needed for execution.
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It'll download all the dependencies and related files automatically.
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"""
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from os import system, geteuid, popen
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from os.path import exists
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from shutil import rmtree
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import sys
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# must be synced with `src/constants.py`
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tmp_dir = "/tmp/com.developomp.setup"
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#
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# Util
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#
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def command_exits(command: str) -> bool:
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return len(popen(f"command -v {command}").readlines()) == 1
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#
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# Common
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#
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def cleanup():
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"""Removes temporary files and folders downloaded by this script"""
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if exists(tmp_dir):
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rmtree(tmp_dir)
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#
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# Checks
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#
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def exit_if_root():
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"""Exits script if it was executed as root"""
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# todo: allow running script as root when implementing user creation/arch installation logic
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if geteuid() == 0:
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print("Do not run this script as root.", file=sys.stderr)
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exit(1)
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def exit_if_invalid_python_version():
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"""Exits script if python version is lower than 3.7"""
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# todo: implement
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pass
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def exit_if_system_not_compatible():
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"""Exits script if the OS is not linux or if pacman does not exist"""
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print("Checking if system is compatible")
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if "linux" not in sys.platform.lower() or not command_exits("pacman"):
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print("This script should only be used on arch linux.", file=sys.stderr)
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exit(1)
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def exit_if_no_internet():
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"""Exits script if there's no internet connection.
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Pings archlinux.org for testing."""
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print("Checking if there's internet connection")
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if system("ping -c 1 archlinux.org &> /dev/null"):
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print("Failed to connect to internet.", file=sys.stderr)
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exit(1)
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#
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# Initializations
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#
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def install_git():
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"""Installs git if it's not installed already"""
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print("Initializing git")
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if not command_exits("git"):
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print("git was not installed already. Installing now.")
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system("sudo pacman -S --noconfirm --needed git")
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def clone_repository():
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"""Clone this repository (https://github.com/developomp/setup) to `/tmp` directory"""
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print("Cloning git repository")
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# remove existing files first
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cleanup()
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# clone repository
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if system(
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f"git clone --depth 1 https://github.com/developomp/setup.git {tmp_dir} &> /dev/null"
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):
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print("Failed to clone repository", file=sys.stderr)
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exit(1)
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# allow everyone to read and write.
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if system(f"chmod -R a+rw {tmp_dir}"):
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print("Failed to change file permission for cloned repo", file=sys.stderr)
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exit(1)
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#
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#
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#
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def minimal_check():
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"""
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Minimal checks before executing any code.
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Full checks will happen after downloading codes from the internet
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"""
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exit_if_root()
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exit_if_invalid_python_version()
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exit_if_system_not_compatible()
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exit_if_no_internet()
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def minimal_initialization():
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"""
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Does minimal initialization.
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Full initialization will happen after downloading codes from the internet.
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"""
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install_git()
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# skip if testing
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if exists(".git/") and exists("src/"):
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return
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clone_repository()
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# Add cloned directory to system path
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sys.path.append(tmp_dir)
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#
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#
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#
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def main():
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minimal_check()
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minimal_initialization()
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from src.entry import entry
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entry()
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cleanup()
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if __name__ == "__main__":
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main()
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