amprolla is an apt repository merger originally intended for use with the Devuan infrastructure. This version is the third iteration of the software.
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#!/usr/bin/env python3
# See LICENSE file for copyright and license details.
"""
Amprolla main module
"""
from os.path import basename, join, isfile
from multiprocessing import Pool
import sys
import lib.globalvars as globalvars
from lib.config import (aliases, arches, banpkgs, categories, cpunm, i18n,
mergedir, mergesubdir, pkgfiles, repos, repo_order,
srcfiles, spooldir, suites, skips)
from lib.lock import run_with_args_locking
from lib.package import (load_packages_file, merge_packages_many,
write_packages)
from lib.release import write_release
from lib.log import info, die, warn
def prepare_merge_dict():
"""
This function will prepare a dict of lists that contain the repos
that need to be merged in an ordered fashion. Orders them using the
repo_order list found in lib.config
Example output:
{'ascii': ['ascii', None, 'stretch']},
"""
merge_dict = {}
for suite in suites:
for i in suites[suite]:
merge_dict[i] = []
for suite in merge_dict:
for repo in repo_order:
tmpsuite = suite
if repos[repo]['aliases'] is True:
if tmpsuite in aliases[repos[repo]['name']]:
tmpsuite = aliases[repos[repo]['name']][suite]
elif repos[repo]['skipmissing'] is True:
tmpsuite = None
if repo == 'debian' and suite in skips:
tmpsuite = None
if tmpsuite: # make it a proper path
tmpsuite = join(spooldir, repos[repo]['dists'], tmpsuite)
merge_dict[suite].append(tmpsuite)
return merge_dict
def devuan_rewrite(pkg, repo_name):
"""
Function to be called when including a certain package. Allows for changing
any attributes.
"""
if 'Filename' in pkg and repos[repo_name]['name'] not in pkg['Filename']:
pkg['Filename'] = pkg['Filename'].replace('pool/', 'pool/%s/' %
repos[repo_name]['name'], 1)
if 'Directory' in pkg and repos[repo_name]['name'] not in pkg['Directory']:
pkg['Directory'] = pkg['Directory'].replace('pool/', 'pool/%s/' %
repos[repo_name]['name'], 1)
return pkg
def merge(packages_list):
"""
Merges the Packages/Sources files given in the package list
['path/to/devuan/Packages.gz', None, 'path/to/debian/Packages.gz']
"""
all_repos = []
print('Loading packages: %s' % packages_list)
for i in range(len(repo_order)):
try:
pkgs = load_packages_file(packages_list[i])
except FileNotFoundError:
pkgs = None
warn("Skipping missing file: {}".format(packages_list[i]))
if pkgs:
all_repos.append({'name': repo_order[i], 'packages': pkgs})
for i in range(len(repo_order)):
if packages_list[i]:
if basename(packages_list[i]) == 'Packages.gz':
print('Merging packages')
src = False
new_pkgs = merge_packages_many(all_repos,
banned_packages=banpkgs,
rewriter=devuan_rewrite)
elif basename(packages_list[i]) == 'Sources.gz':
print('Merging sources')
src = True
new_pkgs = merge_packages_many(all_repos,
rewriter=devuan_rewrite)
break
print('Writing packages')
for i in range(len(repo_order)):
if packages_list[i]:
new_out = packages_list[i].replace(join(spooldir,
repos[repo_order[i]]['dists']),
join(mergedir, mergesubdir))
break
if src:
write_packages(new_pkgs, new_out, sources=True)
else:
write_packages(new_pkgs, new_out)
def gen_release(suite):
"""
Generates a Release file for a given suite (jessie/ascii/unstable)
"""
filelist = []
print('\nCrawling %s' % suite)
rootdir = join(mergedir, mergesubdir, suite)
for cat in categories:
for arch in arches:
if arch == 'source':
flist = srcfiles
else:
flist = pkgfiles
cont = arch.replace('binary', 'Contents')
cont_udeb = arch.replace('binary', 'Contents-udeb')
filelist.append(join(rootdir, cat, cont+'.gz'))
filelist.append(join(rootdir, cat, cont))
filelist.append(join(rootdir, cat, cont_udeb+'.gz'))
filelist.append(join(rootdir, cat, cont_udeb))
for i in flist:
filelist.append(join(rootdir, cat, arch, i))
if arch != 'source':
filelist.append(join(rootdir, cat,
'debian-installer', arch, i))
filelist.extend((join(rootdir, cat, 'i18n',
'Translation-{}.bz2'.format(lang))
for lang in i18n))
newrfl = join(rootdir, 'Release')
oldrfl = newrfl.replace(join(mergedir, mergesubdir),
join(spooldir, repos['devuan']['dists']))
print('Writing Release')
write_release(oldrfl, newrfl, filelist, rootdir)
def main_merge(packages_file):
"""
Main function that calls the actual merge
"""
to_merge = prepare_merge_dict()
for suite in to_merge:
globalvars.suite = suite
pkg_list = []
for rep in to_merge[suite]:
if rep:
pkg_list.append(join(rep, packages_file))
else:
pkg_list.append(None)
merge(pkg_list)
def main():
"""
Crawls the entire directory structure and orchestrates the merge
in a queue using multiprocessing
"""
pkg = []
for i in arches:
for j in categories:
if i == 'source':
mrgfile = 'Sources.gz'
else:
mrgfile = 'Packages.gz'
pkg.append(join(j, 'debian-installer', i, mrgfile))
pkg.append(join(j, i, mrgfile))
mrgpool = Pool(cpunm)
mrgpool.map(main_merge, pkg)
mrgpool.close()
rel_list = []
for i in suites:
for j in suites[i]:
rel_list.append(j)
relpool = Pool(cpunm)
relpool.map(gen_release, rel_list)
relpool.close()
if __name__ == '__main__':
run_with_args_locking(main, "full merge")