optools/arch/autorepo/build.py

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#!/usr/bin/env python3
# TODO: make as flexible as the <rpms>:/bin/build.py (flesh out args), logging, etc.
import argparse
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import datetime
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import copy
import io
import os
import pathlib
import re
import shutil
import subprocess
import tarfile
import tempfile
import warnings
##
import gpg
import requests
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from lxml import etree
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# TODO: track which versions are built so we don't need to consistently rebuild ALL packages
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# TODO: should this be a configuration option?
aurbase = 'https://aur.archlinux.org'
_dflts = {'cfgfile': '~/.config/optools/arch/autorepo.xml'}
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class Packager(object):
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def __init__(self, cfgfile = _dflts['cfgfile'], *args, **kwargs):
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user_params = kwargs
self.args = copy.deepcopy(_dflts)
self.args.update(user_params)
self.origdir = os.path.abspath(os.path.expanduser(os.getcwd()))
self.gpg = None
self.args['destdir'] = os.path.abspath(os.path.expanduser(self.args['destdir']))
if not self.args['pkgs']:
self.args['pkgs'] = _dflts['pkgs']
self._initSigner()
def buildPkgs(self, auronly = None):
for p in self.args['pkgs']:
print(p)
extract_dir = tempfile.mkdtemp(prefix = '.pkgbuilder.{0}-'.format(p))
sub_extract_dir = os.path.join(extract_dir, p)
has_pkg = False
if not auronly:
has_pkg = self._getLocal(p, extract_dir)
if not has_pkg:
has_pkg = self._getAUR(p, extract_dir)
if not has_pkg:
warnings.warn('Could not find package {0}; skipping...'.format(p))
continue
# We get a list of files to compare.
prebuild_files = []
postbuild_files = []
for root, dirs, files in os.walk(sub_extract_dir):
for f in files:
prebuild_files.append(os.path.join(root, f))
os.chdir(os.path.join(extract_dir, p))
# customizepkg-scripting in AUR
try:
custpkg_out = subprocess.run(['/usr/bin/customizepkg',
'-m'],
stdout = subprocess.PIPE,
stderr = subprocess.PIPE)
except FileNotFoundError:
pass # Not installed
build_out = subprocess.run(['/usr/bin/multilib-build',
'-c',
'--',
'--',
'--skippgpcheck',
'--syncdeps',
'--noconfirm',
'--log',
'--holdver',
'--skipinteg'],
stdout = subprocess.PIPE,
stderr = subprocess.PIPE)
# with open('/tmp/build.log-{0}'.format(p), 'w') as f:
# f.write(build_out.stdout.decode('utf-8'))
for root, dirs, files in os.walk(sub_extract_dir):
for f in files:
fpath = os.path.join(root, f)
if fpath in prebuild_files:
continue
if fpath.endswith('.log'):
continue
postbuild_files.append(fpath)
postbuild_files = [i for i in postbuild_files if i.endswith('.pkg.tar.xz')]
if len(postbuild_files) != 1:
warnings.warn('Could not reliably find a built package for {0}; skipping'.format(p))
else:
fdest = os.path.join(self.args['destdir'],
os.path.basename(postbuild_files[0]))
if os.path.isfile(fdest):
os.remove(fdest)
shutil.move(postbuild_files[0], fdest)
self._sign(fdest)
os.chdir(self.origdir)
shutil.rmtree(extract_dir)
return()
def _initSigner(self):
self.gpg = gpg.Context()
# Just grab the first private key until we flesh this out.
for k in self.gpg.keylist(secret = True):
if k.can_sign:
self.gpg.signers = [k]
break
return()
def _getAUR(self, pkgnm, extract_dir):
dl_url = None
pkg_srch = requests.get(os.path.join(self.args['aurbase'],
'rpc'),
params = {
'v': 5,
'type': 'search',
'by': 'name',
'arg': pkgnm}).json()
for pkg in pkg_srch['results']:
dl_url = None
if pkg['Name'] == pkgnm:
dl_url = os.path.join(self.args['aurbase'], re.sub('^/+', '', pkg['URLPath']))
# dl_file = os.path.basename(pkg['URLPath'])
break
if not dl_url:
warnings.warn('Could not find a download path for {0}; skipping'.format(pkgnm))
return(False)
with requests.get(dl_url, stream = True) as url:
with tarfile.open(mode = 'r|*', fileobj = io.BytesIO(url.content)) as tar:
tar.extractall(extract_dir)
return(True)
def _getLocal(self, pkgnm, extract_dir):
curfile = os.path.realpath(os.path.abspath(os.path.expanduser(__file__)))
localpkg_dir = os.path.abspath(os.path.join(os.path.dirname(curfile),
'..',
'local_pkgs'))
pkgbuild_dir = os.path.join(localpkg_dir,
pkgnm)
if not os.path.isdir(pkgbuild_dir):
return(False)
shutil.copytree(pkgbuild_dir, os.path.join(extract_dir, pkgnm))
return(True)
def _sign(self, pkgfile, passphrase = None):
sigfile = '{0}.sig'.format(pkgfile)
with open(pkgfile, 'rb') as pkg:
with open(sigfile, 'wb') as sig:
# We want ascii-armoured detached sigs
sig.write(self.gpg.sign(pkg.read(), mode = gpg.constants.SIG_MODE_DETACH)[0])
return()
def createRepo(self):
pkgfiles = []
for root, dirs, files in os.walk(self.args['destdir']):
for f in files:
if f.endswith('.pkg.tar.xz'):
pkgfiles.append(os.path.join(root, f))
repo_out = subprocess.run(['/usr/bin/repo-add',
'-s',
'-R',
os.path.join(self.args['destdir'], '{0}.db.tar.xz'.format(self.args['reponame'])),
*pkgfiles],
stdout = subprocess.PIPE,
stderr = subprocess.PIPE)
return()
def parseArgs():
args = argparse.ArgumentParser(description = 'Build Pacman packages and update a local repository')
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args.add_argument('-c', '--config',
dest = 'cfgfile',
default = _dflts['cfgfile'],
help = ('The path to the configuration file. Default: {0}').format(_dflts['cfgfile']))
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return(args)
def main():
args = parseArgs().parse_args()
varargs = vars(args)
pkgr = Packager(**varargs)
pkgr.buildPkgs(auronly = varargs['auronly'])
pkgr.createRepo()
return()
if __name__ == '__main__':
main()