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Warn and force --nostrip on the presence of f-strings in waf files

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Waf Project 2023-10-31 09:07:35 +01:00
parent 61ff2ac19c
commit 4b317058de
1 changed files with 7 additions and 4 deletions
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11
wscript
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@ -116,7 +116,7 @@ def options(opt):
opt.add_option('--namesfrom', action='store', help='Obtain the file names from a model archive', dest='namesfrom', default=None)
opt.load('python')
def process_tokens(tokens):
def process_tokens(tokens, filename):
accu = []
prev = tokenize.NEWLINE
@ -147,7 +147,10 @@ def process_tokens(tokens):
line_buf.append(token)
elif type == tokenize.STRING:
if not line_buf and token.startswith('"'): pass
else: line_buf.append(token)
else:
if token.lower().startswith('f'):
raise ValueError('Found f-strings in %s which require Python >= 3.6, use "waf-light --nostrip"' % filename)
line_buf.append(token)
elif type == tokenize.COMMENT:
pass
elif type == tokenize.OP:
@ -189,10 +192,10 @@ def sfilter(path):
with open(path, 'rb') as f:
tk = tokenize.tokenize(f.readline)
next(tk) # the first one is always tokenize.ENCODING for Python 3, ignore it
cnt = process_tokens(tk)
cnt = process_tokens(tk, path)
else:
with open(path, 'r') as f:
cnt = process_tokens(tokenize.generate_tokens(f.readline))
cnt = process_tokens(tokenize.generate_tokens(f.readline), path)
else:
with open(path, 'r') as f:
cnt = f.read()