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77 lines
2.4 KiB
Python
Executable File
77 lines
2.4 KiB
Python
Executable File
#!/usr/bin/env python
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from __future__ import unicode_literals
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import os
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import ast
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import io
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import re
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import plac
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# cgi.escape is deprecated since py32
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try:
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from html import escape
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except ImportError:
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from cgi import escape
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# e.g. python website/create_code_samples tests/website/ website/src/
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def main(src_dirname, dst_dirname):
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prefix = "test_"
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for filename in os.listdir(src_dirname):
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if not filename.startswith('test_'):
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continue
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if not filename.endswith('.py'):
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continue
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# Remove test_ prefix and .py suffix
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name = filename[5:-3]
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with io.open(os.path.join(src_dirname, filename), 'r', encoding='utf8') as file_:
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source = file_.readlines()
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tree = ast.parse("".join(source))
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for root in tree.body:
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if isinstance(root, ast.FunctionDef) and root.name.startswith(prefix):
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# only ast.expr and ast.stmt have line numbers, see:
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# https://docs.python.org/2/library/ast.html#ast.AST.lineno
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line_numbers = []
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for node in ast.walk(root):
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if hasattr(node, "lineno"):
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line_numbers.append(node.lineno)
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body = source[min(line_numbers)-1:max(line_numbers)]
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while not body[0][0].isspace():
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body = body[1:]
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# make sure we are inside an indented function body
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assert all([l[0].isspace() for l in body])
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offset = 0
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for line in body:
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match = re.search(r"[^\s]", line)
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if match:
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offset = match.start(0)
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break
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# remove indentation
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assert offset > 0
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for i in range(len(body)):
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body[i] = body[i][offset:] if len(body[i]) > offset else "\n"
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# make sure empty lines contain a newline
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assert all([l[-1] == "\n" for l in body])
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code_filename = "%s.%s" % (name, root.name[len(prefix):])
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with io.open(os.path.join(dst_dirname, code_filename),
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"w", encoding='utf8') as f:
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f.write(escape("".join(body)))
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if __name__ == '__main__':
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plac.call(main)
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