yunohost/src/utils/legacy.py

123 lines
4.6 KiB
Python

#
# Copyright (c) 2024 YunoHost Contributors
#
# This file is part of YunoHost (see https://yunohost.org)
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
import os
import re
import glob
from logging import getLogger
from moulinette.core import MoulinetteError
from moulinette.utils.filesystem import (
read_file,
write_to_file,
)
from yunohost.utils.error import YunohostValidationError
logger = getLogger("yunohost.utils.legacy")
def _patch_legacy_helpers(app_folder):
files_to_patch = []
files_to_patch.extend(glob.glob("%s/scripts/*" % app_folder))
files_to_patch.extend(glob.glob("%s/scripts/.*" % app_folder))
stuff_to_replace = {
"yunohost user create": {
"pattern": r"yunohost user create (\S+) (-f|--firstname) (\S+) (-l|--lastname) \S+ (.*)",
"replace": r"yunohost user create \1 --fullname \3 \5",
"important": False,
},
# Remove
# Automatic diagnosis data from YunoHost
# __PRE_TAG1__$(yunohost tools diagnosis | ...)__PRE_TAG2__"
#
"yunohost tools diagnosis": {
"pattern": r"(Automatic diagnosis data from YunoHost( *\n)*)? *(__\w+__)? *\$\(yunohost tools diagnosis.*\)(__\w+__)?",
"replace": r"",
"important": False,
},
}
for helper, infos in stuff_to_replace.items():
infos["pattern"] = (
re.compile(infos["pattern"]) if infos.get("pattern") else None
)
infos["replace"] = infos.get("replace")
for filename in files_to_patch:
# Ignore non-regular files
if not os.path.isfile(filename):
continue
try:
content = read_file(filename)
except MoulinetteError:
continue
replaced_stuff = False
show_warning = False
for helper, infos in stuff_to_replace.items():
# Ignore if not relevant for this file
if infos.get("only_for") and not any(
filename.endswith(f) for f in infos["only_for"]
):
continue
# If helper is used, attempt to patch the file
if helper in content and infos["pattern"]:
content = infos["pattern"].sub(infos["replace"], content)
replaced_stuff = True
if infos["important"]:
show_warning = True
# If the helper is *still* in the content, it means that we
# couldn't patch the deprecated helper in the previous lines. In
# that case, abort the install or whichever step is performed
if helper in content and infos["important"]:
raise YunohostValidationError(
"This app is likely pretty old and uses deprecated / outdated helpers that can't be migrated easily. It can't be installed anymore.",
raw_msg=True,
)
if replaced_stuff:
# Check the app do load the helper
# If it doesn't, add the instruction ourselve (making sure it's after the #!/bin/bash if it's there...
if filename.split("/")[-1] in [
"install",
"remove",
"upgrade",
"backup",
"restore",
]:
source_helpers = "source /usr/share/yunohost/helpers"
if source_helpers not in content:
content.replace("#!/bin/bash", "#!/bin/bash\n" + source_helpers)
if source_helpers not in content:
content = source_helpers + "\n" + content
# Actually write the new content in the file
write_to_file(filename, content)
if show_warning:
# And complain about those damn deprecated helpers
logger.error(
r"/!\ Packagers! This app uses very old deprecated helpers... YunoHost automatically patched the helpers to use the new recommended practice, but please do consider fixing the upstream code right now..."
)