def check(language):
"""
Ensure that external code files exist and check which external files
have changed from what's in the .rst files. Generate files in the
_deltas subdirectory showing what has changed.
"""
class Result: # Messenger
def __init__(self, `kwargs):
self.__dict__ = kwargs
result = Result(missing = [], deltas = [])
listings = [Result(code = shift(code), file = f)
for f in restFiles for code in
language.listings.findall(open(f).read())]
paths = [os.path.normpath(os.path.join("..", "code", path)) for path in
[listing.code[0].strip()[len(language.commentTag):].strip()
for listing in listings]]
if os.path.exists("_deltas"):
shutil.rmtree("_deltas")
for path, listing in zip(paths, listings):
if not os.path.exists(path):
result.missing.append(path)
else:
code = open(path).read().splitlines()
for i in difflib.ndiff(listing.code, code):
if i.startswith("+ ") or i.startswith("- "):
d = difflib.HtmlDiff()
if not os.path.exists("_deltas"):
os.makedirs("_deltas")
html = os.path.join("_deltas",
os.path.basename(path).split('.')[0] + ".html")
open(html, 'w').write(
"<html><h1>Left: %s<br>Right: %s</h1>" %
(listing.file, path) +
d.make_file(listing.code, code))
result.deltas.append(Result(file = listing.file,
path = path, html = html, code = code))
break
if result.missing:
print("Missing %s files:\n%s" %
(language.__name__, "\n".join(result.missing)))
for delta in result.deltas:
print("%s changed in %s; see %s" %
(delta.file, delta.path, delta.html))
return result
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