340 lines
10 KiB
Python
Executable file
340 lines
10 KiB
Python
Executable file
#!/usr/bin/python3
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"""Main installer file.
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Shamelessly copied from https://github.com/dmerejkowsky/dotfiles.
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"""
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import argparse
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import subprocess
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from typing import List, Optional
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from urllib.request import urlretrieve
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import cli_ui as ui # type: ignore
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from path import Path # type: ignore
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from ruamel.yaml import YAML # type: ignore
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class Installer:
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"""Regroups all the installation methods listed in the yaml conf file."""
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def __init__(self, force: bool = False, update: bool = False):
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yaml = YAML(typ='safe')
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self.conf = yaml.load(Path("configs.yml").text())
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self.base_dir = Path.getcwd()
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self.home = Path("~").expanduser()
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self.operating_system = define_os()
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self.force = force
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self.update = update
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def evaluate_condition(self, condition: str) -> bool:
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"""Run a bash command. On success return True, else return False."""
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conditions = {
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"arch": self.operating_system == "arch based",
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"debian": self.operating_system == "debian based",
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"force": self.force,
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"no force": not self.force,
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"update": self.update,
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"no update": not self.update,
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}
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if condition in conditions.keys():
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return conditions[condition]
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command = subprocess.run(condition, check=False, shell=True)
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return command.returncode == 0
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def pretty_path(self, path: Path) -> str:
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"""Put the ~/ back in the path."""
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relpath: str = path.relpath(self.home)
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return "~/" + relpath
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def do_clone(self, url: str, dest: str, branch: str = "master") -> None:
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"""Do the git clone."""
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p_dest = Path(dest).expanduser()
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pretty_dest = self.pretty_path(p_dest)
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p_dest.parent.makedirs_p()
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if p_dest.exists():
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if self.force:
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ui.info_2("Removing", pretty_dest)
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p_dest.rmtree()
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elif self.update:
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ui.info_2("Updating", pretty_dest)
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self.do_run("cd {} && git pull".format(p_dest))
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return
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else:
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ui.info_2("Skipping", pretty_dest)
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return
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ui.info_2("Cloning", url, "->", pretty_dest)
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git_command = "git clone {} {} --branch {}".format(url, p_dest, branch)
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subprocess.run(git_command, check=True, shell=True)
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def do_copy(self, src: str, dest: str) -> None:
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"""Copy two files."""
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p_dest = Path(dest).expanduser()
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pretty_dest = self.pretty_path(p_dest)
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p_dest.parent.makedirs_p()
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if p_dest.exists() and not self.force:
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ui.info_2("Skipping", pretty_dest)
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return
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p_src: Path = self.base_dir / "dotfiles" / src
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ui.info_2("Copy", p_src, "->", self.pretty_path(p_src))
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p_src.copy(p_dest)
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def do_download(
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self, *, url: str, dest: str, executable: bool = False
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) -> None:
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"""Retrieve a file from a url."""
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p_dest = Path(dest).expanduser()
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pretty_dest = self.pretty_path(p_dest)
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p_dest.parent.makedirs_p()
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if p_dest.exists() and not self.force:
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ui.info_2("Skipping", pretty_dest)
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else:
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ui.info_2("Fetching", url, "->", pretty_dest)
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urlretrieve(url, p_dest)
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if executable:
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p_dest.chmod(0o755)
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def do_install(
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self, *packages: str, **os_specific_packages: List[str]
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) -> None:
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"""Install packages with OS-specific package manager.
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Packages can either be in a tuple for non OS-specific packages, or in a
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dict for OS-specific packages.
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"""
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if not packages:
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try:
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packages = tuple(
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os_specific_packages[self.operating_system]
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+ os_specific_packages["both"]
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)
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except KeyError:
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ui.fatal("Operating System not understood.")
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return
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failed_installs = []
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ui.info_2("Installing packages...")
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for package in packages:
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if self.operating_system == "arch based":
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command = "sudo pacman -S --needed --noconfirm {}"\
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.format(package)
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elif self.operating_system == "debian based":
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command = "sudo apt install -y {}".format(package)
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install = subprocess.run(command, check=False, shell=True,
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stdout=subprocess.DEVNULL,
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stderr=subprocess.DEVNULL)
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if install.returncode != 0:
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ui.info(ui.cross, package)
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failed_installs.append(package)
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else:
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ui.info(ui.check, package)
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if len(failed_installs) > 0:
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ui.warning("These packages failed to install:")
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for failed in failed_installs:
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ui.info(" ", failed)
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ui.info(ui.yellow, "Are the packages really meant for {} systems?"
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.format(self.operating_system))
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def do_run(self, command: str, condition: str = "true") -> None:
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"""Run a command."""
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if not self.evaluate_condition(condition):
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ui.info_2("Skipping", "`{}`".format(command))
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return
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ui.info_2("Running", "`{}`".format(command))
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runned = subprocess.run(command, check=False, shell=True)
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if runned.returncode != 0:
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ui.warning("`{}` failed".format(command))
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self.base_dir.chdir()
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def do_symlink(self, src: str, dest: str, condition: str = "true") -> None:
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"""Make a symlink to a file."""
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self._do_symlink(src, dest, condition=condition, is_dir=False)
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def do_symlink_dir(
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self, src: str, dest: str, condition: str = "true"
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) -> None:
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"""Make a symlink to a dir."""
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self._do_symlink(src, dest, condition=condition, is_dir=True)
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def _do_symlink(
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self, src: str, dest: str, *, condition: str, is_dir: bool
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) -> None:
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p_src = Path(src).expanduser()
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pretty_src = self.pretty_path(p_src)
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p_dest = Path(dest).expanduser()
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pretty_dest = self.pretty_path(p_dest)
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if not self.evaluate_condition(condition):
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ui.info_2("Skipping", pretty_dest)
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return
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if is_dir:
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p_dest.parent.parent.makedirs_p()
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else:
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p_dest.parent.makedirs_p()
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if p_dest.exists() and not self.force:
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ui.info_2("Skipping", pretty_dest)
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return
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if p_dest.islink():
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p_dest.remove()
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ui.info_2("Symlink", pretty_dest, "->", pretty_src)
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if p_src.startswith("/"):
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src_full = p_src
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else:
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src_full = self.base_dir / "dotfiles" / p_src
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src_full.symlink(p_dest)
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def do_append(self, dest: str, content: str) -> None:
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"""Append to a file."""
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self._do_write(dest, content, append=True)
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def do_write(self, dest: str, content: str) -> None:
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"""Write into a file."""
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self._do_write(dest, content, append=False)
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def _do_write(self, dest: str, content: str, *, append: bool) -> None:
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p_dest = Path(dest).expanduser()
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pretty_dest = self.pretty_path(p_dest)
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if p_dest.exists() and not self.force:
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ui.info_2("Skipping", pretty_dest)
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return
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ui.info_2("Creating", pretty_dest)
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p_dest.parent.makedirs_p()
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content = content.format(base_dir=self.base_dir, home=self.home)
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if not content.endswith("\n"):
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content += "\n"
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p_dest.write_text(content, append=append)
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def install(self, programs: Optional[List[str]] = None) -> None:
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"""Install the programs provided.
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If no program is provided, use the conf file to find the programs.
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"""
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if not programs:
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programs = sorted(self.conf.keys())
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for program in programs:
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self.install_program(program)
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def install_program(self, program: str) -> None:
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"""Install one program (called by self.install()).
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Call indivdual methods from the conf file.
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"""
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ui.info(ui.green, program)
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ui.info("-" * len(program))
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todo = self.conf[program]
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for action in todo:
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name = list(action.keys())[0]
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params = action[name]
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func = getattr(self, "do_{}".format(name))
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if isinstance(params, dict):
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func(**params)
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else:
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func(*params)
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ui.info()
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def define_os() -> str:
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"""Define what OS we are using."""
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os_release = Path("/etc/os-release")
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oses = ("arch", "debian", "manjaro", "ubuntu")
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for operating_system in oses:
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if operating_system in os_release.read_text().lower():
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ui.info_3("Found", operating_system)
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if operating_system in ("arch", "manjaro"):
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return "arch based"
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if operating_system in ("debian", "ubuntu"):
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subprocess.run(
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"sudo apt update",
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check=True,
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shell=True,
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stdout=subprocess.DEVNULL,
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)
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return "debian based"
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ui.warning("Operating system wasn't found")
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operating_system = input("What is it ? ")
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if operating_system in ("arch", "debian"):
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return operating_system + " based"
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ui.fatal("I only support Arch and Debian based distros.")
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return "Unsupported OS"
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def main() -> None:
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"""Parse args and instantiate the Installer."""
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parser = argparse.ArgumentParser()
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parser.add_argument(
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"programs",
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nargs="*",
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)
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parser.add_argument(
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"--force",
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action="store_true",
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help="Overwrite existing files",
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)
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parser.add_argument(
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"--update",
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action="store_true",
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help="Update git repos",
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)
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args = parser.parse_args()
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programs = args.programs
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force = args.force
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update = args.update
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installer = Installer(force=force, update=update)
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installer.install(programs=programs)
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if __name__ == "__main__":
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main()
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