anki/ftl/format.py
2021-01-19 16:28:13 +10:00

100 lines
2.7 KiB
Python

#!/usr/bin/env python3
# -*- coding: UTF-8 -*-
"""
Parse and re-serialize ftl files to get them in a consistent form.
"""
import os
import json
import glob
import sys
import difflib
from typing import List
from fluent.syntax import parse, serialize
from fluent.syntax.ast import Junk
from compare_locales.paths import File
from compare_locales import parser
from compare_locales.checks.fluent import ReferenceMessageVisitor
def check_missing_terms(path: str) -> bool:
"True if file is ok."
file = File(path, os.path.basename(path))
content = open(path, "rb").read()
p = parser.getParser(file.file)
p.readContents(content)
refList = p.parse()
p.readContents(content)
for e in p.parse():
ref_data = ReferenceMessageVisitor()
ref_data.visit(e.entry)
for attr_or_val, refs in ref_data.entry_refs.items():
for ref, ref_type in refs.items():
if ref not in refList:
print(f"In {path}:{e}, missing '{ref}'")
return False
return True
def check_file(path: str, fix: bool) -> bool:
"True if file is ok."
orig_text = open(path, encoding="utf8").read()
obj = parse(orig_text, with_spans=False)
# make sure there's no junk
for ent in obj.body:
if isinstance(ent, Junk):
raise Exception(f"file had junk! {path} {ent}")
# serialize
new_text = serialize(obj)
# make sure serializing did not introduce new junk
obj = parse(new_text, with_spans=False)
for ent in obj.body:
if isinstance(ent, Junk):
raise Exception(f"file introduced junk! {path} {ent}")
if new_text == orig_text:
return check_missing_terms(path)
if fix:
print(f"Fixing {path}")
open(path, "w", newline="\n", encoding="utf8").write(new_text)
return True
else:
print(f"Bad formatting in {path}")
print(
"\n".join(
difflib.unified_diff(
orig_text.splitlines(),
new_text.splitlines(),
fromfile="bad",
tofile="good",
lineterm="",
)
)
)
return False
def check_files(files: List[str], fix: bool) -> bool:
"True if files ok."
found_bad = False
for path in files:
ok = check_file(path, fix)
if not ok:
found_bad = True
return not found_bad
if __name__ == "__main__":
template_root = os.environ["BUILD_WORKSPACE_DIRECTORY"]
template_files = glob.glob(
os.path.join(template_root, "ftl", "*", "*.ftl"), recursive=True
)
check_files(template_files, fix=True)