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import os.path
import shutil
import subprocess
import textwrap
from typing import List, Dict
from debputy.maintscript_snippet import MaintscriptSnippetContainer, MaintscriptSnippet
from debputy.packager_provided_files import PackagerProvidedFile
from debputy.packages import BinaryPackage
from debputy.packaging.makeshlibs import resolve_reserved_provided_file
from debputy.plugin.api.spec import FlushableSubstvars
from debputy.util import _error, escape_shell
# Match debhelper (minus one space in each end, which comes
# via join).
LINE_PREFIX = "\\\n "
def process_debconf_templates(
binary_package: BinaryPackage,
reserved_packager_provided_files: Dict[str, List[PackagerProvidedFile]],
maintscript_snippets: Dict[str, MaintscriptSnippetContainer],
substvars: FlushableSubstvars,
control_output_dir: str,
) -> None:
provided_templates_file = resolve_reserved_provided_file(
"templates",
reserved_packager_provided_files,
)
if provided_templates_file is None:
return
templates_file = os.path.join(control_output_dir, "templates")
debian_dir = provided_templates_file.parent_dir
po_template_dir = debian_dir.get("po") if debian_dir is not None else None
if po_template_dir is not None and po_template_dir.is_dir:
with open(templates_file, "wb") as fd:
cmd = [
"po2debconf",
provided_templates_file.fs_path,
]
print(f" {escape_shell(*cmd)} > {templates_file}")
try:
subprocess.check_call(
cmd,
stdout=fd.fileno(),
)
except subprocess.CalledProcessError:
_error(
f"Failed to generate the templates files for {binary_package.name}. Please review "
f" the output of {escape_shell('po-debconf', provided_templates_file.fs_path)}"
" to understand the issue."
)
else:
shutil.copyfile(provided_templates_file.fs_path, templates_file)
dependency = (
"cdebconf-udeb" if binary_package.is_udeb else "debconf (>= 0.5) | debconf-2.0"
)
substvars.add_dependency("misc:Depends", dependency)
if not binary_package.is_udeb:
# udebs do not have `postrm` scripts
maintscript_snippets["postrm"].append(
MaintscriptSnippet(
f"debputy (due to {provided_templates_file.fs_path})",
# FIXME: `debconf` sourcing should be an overarching feature
snippet=textwrap.dedent(
"""\
if [ "$1" = purge ] && [ -e /usr/share/debconf/confmodule ]; then
. /usr/share/debconf/confmodule
db_purge
db_stop
fi
"""
),
)
)
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