schon/engine/core/management/commands/deepl_translate.py
Egor fureunoir Gorbunov dc7f8be926 Features: 1) None;
Fixes: 1) Add `# ty: ignore` comments to suppress type errors in multiple files; 2) Correct method argument annotations and definitions to align with type hints; 3) Fix cases of invalid or missing imports and unresolved attributes;

Extra: Refactor method definitions to use tuple-based method declarations; replace custom type aliases with `Any`; improve caching utility and error handling logic in utility scripts.
2025-12-19 16:43:39 +03:00

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import os
import re
from argparse import ArgumentParser
from os import getenv
from tempfile import NamedTemporaryFile
from typing import Any
import polib
import requests
from django.apps import apps
from django.core.management.base import BaseCommand, CommandError
from engine.core.management.commands import (
DEEPL_TARGET_LANGUAGES_MAPPING,
TRANSLATABLE_APPS,
RootDirectory,
)
# Patterns to identify placeholders
PLACEHOLDER_REGEXES = [
re.compile(r"\{[^}]+"), # {name}, {product_uuid}
re.compile(r"%\([^)]+\)[sd]"), # %(name)s, %(count)d
]
def placeholderize(text: str) -> tuple[str, list[str]]:
"""
Replace placeholders with tokens and collect originals.
Returns (protected_text, placeholders_list).
"""
placeholders: list[str] = []
def _repl(match: re.Match) -> str:
idx = len(placeholders)
placeholders.append(match.group(0))
return f"__PH_{idx}__"
for rx in PLACEHOLDER_REGEXES:
text = rx.sub(_repl, text)
return text, placeholders
def deplaceholderize(text: str, placeholders: list[str]) -> str:
"""
Restore tokens back to original placeholders.
"""
for idx, ph in enumerate(placeholders):
text = text.replace(f"__PH_{idx}__", ph)
return text
def load_po_sanitized(path: str) -> polib.POFile | None:
"""
Load a .po file, sanitizing common issues if necessary.
"""
try:
return polib.pofile(path)
except OSError:
with open(path, encoding="utf-8") as f:
text = f.read()
# fix malformed fuzzy flags
text = re.sub(r"^#,(?!\s)", "#, ", text, flags=re.MULTILINE)
# remove empty header entries
parts = text.split("\n\n", 1)
header = parts[0]
rest = parts[1] if len(parts) > 1 else ""
rest_clean = re.sub(
r"^msgid \"\"\s*\nmsgstr \"\"\s*\n?", "", rest, flags=re.MULTILINE
)
sanitized = header + "\n\n" + rest_clean
tmp = NamedTemporaryFile( # noqa: SIM115
mode="w+", delete=False, suffix=".po", encoding="utf-8"
)
try:
tmp.write(sanitized)
tmp.flush()
tmp.close()
return polib.pofile(tmp.name)
finally:
try:
os.unlink(tmp.name)
except OSError as e:
raise CommandError("Failed to write sanitized .po file") from e
class Command(BaseCommand):
help = "Merge msgid/msgstr from en_GB PO into target-language POs via DeepL, preserving placeholders."
def add_arguments(self, parser: ArgumentParser) -> None:
parser.add_argument(
"-l",
"--language",
dest="target_languages",
action="append",
required=True,
metavar="LANG",
help="Locale code for translation, e.g. de-DE, fr-FR. Use ALL to translate all languages.",
)
parser.add_argument(
"-a",
"--app",
dest="target_apps",
action="append",
required=True,
metavar="APP",
help="App label for translation, e.g. core, payments. Use ALL to translate all apps.",
)
def handle(self, *args: Any, **options: Any) -> None:
target_langs = options["target_languages"]
if "ALL" in target_langs:
target_langs = list(DEEPL_TARGET_LANGUAGES_MAPPING.keys())
target_apps = set(options["target_apps"])
if "ALL" in target_apps:
target_apps = {
app_conf.label
for app_conf in list(apps.get_app_configs()) + [RootDirectory()]
if app_conf.label in TRANSLATABLE_APPS
}
auth_key = getenv("DEEPL_AUTH_KEY")
if not auth_key:
raise CommandError("DEEPL_AUTH_KEY not set")
# attempt to import readline for interactive fill
readline: Any = None
try:
import readline as readline_module
readline = readline_module
except ImportError:
pass
for target_lang in target_langs:
api_code = DEEPL_TARGET_LANGUAGES_MAPPING.get(target_lang)
if not api_code:
self.stdout.write(
self.style.WARNING(f"Unknown language '{target_lang}'")
)
continue
if api_code == "unsupported":
self.stdout.write(
self.style.WARNING(f"Unsupported language '{target_lang}'")
)
continue
self.stdout.write(
self.style.MIGRATE_HEADING(f"→ Translating into {target_lang}")
)
configs = list(apps.get_app_configs()) + [RootDirectory()]
for app_conf in configs:
if app_conf.label not in target_apps:
continue
en_path = os.path.join(
app_conf.path, "locale", "en_GB", "LC_MESSAGES", "django.po"
)
if not os.path.isfile(en_path):
self.stdout.write(
self.style.WARNING(f"{app_conf.label}: no en_GB PO")
)
continue
self.stdout.write(f"{app_conf.label}: loading English PO…")
en_po = load_po_sanitized(en_path)
if not en_po:
raise CommandError(f"Failed to load en_GB PO for {app_conf.label}")
missing = [
e for e in en_po if e.msgid and not e.msgstr and not e.obsolete
]
if missing:
self.stdout.write(
self.style.NOTICE(f"⚠️ {len(missing)} missing in en_GB")
)
for e in missing:
default = e.msgid
if readline:
def hook() -> None:
readline.insert_text(default) # noqa: B023 # ty: ignore[unresolved-attribute]
readline.redisplay() # ty: ignore[unresolved-attribute]
readline.set_pre_input_hook(hook) # ty: ignore[unresolved-attribute]
prompt = f"Enter translation for '{e.msgid}': "
user_in = input(prompt).strip()
if readline:
readline.set_pre_input_hook(None) # ty: ignore[unresolved-attribute]
if user_in:
e.msgstr = user_in
else:
e.msgstr = e.msgid
en_po.save(en_path)
self.stdout.write(self.style.SUCCESS("Updated en_GB PO"))
entries = [e for e in en_po if e.msgid and not e.obsolete]
source_map = {e.msgid: e.msgstr for e in entries}
tgt_dir = os.path.join(
app_conf.path,
"locale",
target_lang.replace("-", "_"),
"LC_MESSAGES",
)
os.makedirs(tgt_dir, exist_ok=True)
tgt_path = os.path.join(str(tgt_dir), "django.po")
old_tgt = None
if os.path.exists(tgt_path):
self.stdout.write(f" loading existing {target_lang} PO…")
try:
old_tgt = load_po_sanitized(str(tgt_path))
except Exception as e:
self.stdout.write(
self.style.WARNING(
f"Existing PO parse error({e!s}), starting fresh"
)
)
new_po = polib.POFile()
new_po.metadata = en_po.metadata.copy()
new_po.metadata["Language"] = target_lang
for entry in entries:
prev = old_tgt.find(entry.msgid) if old_tgt else None
new_po.append(
polib.POEntry(
msgid=entry.msgid,
msgstr=prev.msgstr if prev and prev.msgstr else "",
msgctxt=entry.msgctxt,
comment=entry.comment,
tcomment=entry.tcomment,
occurrences=entry.occurrences,
flags=entry.flags,
)
)
to_trans = [e for e in new_po if not e.msgstr]
if not to_trans:
self.stdout.write(
self.style.WARNING(f"All done for {app_conf.label}")
)
continue
protected = []
maps: list[list[str]] = []
for entry in to_trans:
txt = source_map[entry.msgid]
p_txt, p_map = placeholderize(txt)
protected.append(p_txt)
maps.append(p_map)
data = [
("auth_key", auth_key),
("target_lang", api_code),
] + [("text", t) for t in protected]
resp = requests.post("https://api.deepl.com/v2/translate", data=data)
try:
resp.raise_for_status()
result = resp.json()
except Exception as exc:
raise CommandError(f"DeepL error: {exc} {resp.text}") from exc
trans = result.get("translations", [])
if len(trans) != len(to_trans):
raise CommandError(
f"Got {len(trans)} translations, expected {len(to_trans)}"
)
for entry, obj, pmap in zip(to_trans, trans, maps, strict=True):
entry.msgstr = deplaceholderize(obj["text"], pmap)
new_po.save(str(tgt_path))
self.stdout.write(self.style.SUCCESS(f"Saved {tgt_path}"))
self.stdout.write(self.style.SUCCESS("Done."))