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import click
import portage
from git import Repo
from shutil import rmtree
from portage.os import path, makedirs
#TODO: global --repo option, (env var?)
@click.group()
def main():
"""A utility to manage portage overlays"""
pass
@main.command()
@click.option('--list-repos', is_flag=True,
help='Lists available repositories')
@click.option('--create', is_flag=True,
help='Create the repository, instead of using an existing one')
@click.argument('repo', required=False)
@click.argument('repo-dir', envvar='POMU_REPO_DIR', required=False, default='/var/lib/pomu')
def init(list_repos, create, repo, repo_dir):
"""Initialise pomu for a repository"""
rs = portage.db[portage.root]['vartree'].settings.repositories
if list_repos:
print('Available repos:')
for repo in rs.prepos_order:
print('\t', repo, rs.prepos[repo].location)
return
if not repo:
print('Error: repository name required')
return
if create:
if repo in rs.prepos_order:
print('Error: a repository with such name already exists!')
return
repo_path = path.join(repo_dir, repo)
try:
makedirs(repo_path)
except PermissionError:
print('Error: you do not have enough permissions to create the git repository')
return
try:
with open(path.join(portage.root, '/etc/portage/repos.conf', 'pomu.conf'), 'a') as f:
f.write('[' + repo + ']' + '\n')
f.write('location = ' + repo_path + '\n')
except PermissionError:
print('Error: you do not have enough permissions to setup a portage repo')
rmtree(repo_path)
return
r = Repo.init(repo_path)
if not pomu_init(repo_path):
rmtree(repo_path)
else:
if repo not in rs.prepos_order:
print('Error: repository not found')
return
init_pomu(rs.prepos[repo])
def init_pomu(repo_path):
pomu_path = path.join(repo_path, 'metadata', 'pomu')
if not path.isdir(path.join(repo_path, '.git')):
print('Error: target repository should be a git repo')
return False
if path.isdir(pomu_path):
print('Repository', repo, 'already initialized')
return True
r = Repo(repo_path)
try:
makedirs(pomu_path)
open(path.join(pomu_path, '.sentinel'), 'w').close()
except PermissionError:
print('Error: you do not have enough permissions to modify the repo')
return False
r.index.add(pomu_path)
r.index.commit('Initialized pomu')
print('Initialized repository', repo, 'successfully')
return True
@main.command()
def status():
"""Display pomu status"""
rs = portage.db[portage.root]['vartree'].settings.repositories
for repo in rs.prepos_order:
if path.isdir(path.join(rs.prepos[repo].location, 'metadata', 'pomu')):
print('pomu is initialized for repository', repo, 'at', rs.prepos[repo].location)
return
print('pomu is not initialized')
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