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https://github.com/dolthub/dolt.git
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99 lines
2.5 KiB
Python
Executable File
99 lines
2.5 KiB
Python
Executable File
#!/usr/bin/python
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# Copyright 2016 Attic Labs, Inc. All rights reserved.
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# Licensed under the Apache License, version 2.0:
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# http://www.apache.org/licenses/LICENSE-2.0
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# This script ensures our license header is present on all the files git knows
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# about within the current directory.
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#
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# It is safe to re-run this file on already-processed files.
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import os
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import re
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import subprocess
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import shutil
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import tempfile
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license = [
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'Copyright 2016 Attic Labs, Inc. All rights reserved.',
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'Licensed under the Apache License, version 2.0:',
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'http://www.apache.org/licenses/LICENSE-2.0',
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]
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comment_markers = {
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'go': ('', '// ', ''),
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'js': ('', '// ', ''),
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'py': ('', '# ', ''),
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'html': ('<!--', ' ', '-->'),
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'css': ('/**', ' * ', ' */'),
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}
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def main():
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files = subprocess.check_output(['git', 'ls-files']).split('\n')
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for n in files:
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if n != '' and n.find('vendor/') == -1:
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_, ext = os.path.splitext(n)
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if ext == '':
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continue
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ext = ext[1:]
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pattern = buildLicensePattern(ext)
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if pattern != None:
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with open(n, 'r+') as f:
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processFile(f, ext, pattern)
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# Updates the license block in file |f|.
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def processFile(f, ext, pattern):
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content = f.read()
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f.seek(0)
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f.truncate()
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replacement = re.sub(pattern, getLicense(ext), content)
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f.write(replacement)
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# Builds a regex pattern that matches license blocks in files with extension
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# |ext|.
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def buildLicensePattern(ext):
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markers = comment_markers.get(ext)
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if markers is None:
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return None
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(first, mark, last) = [re.escape(m) for m in markers]
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prefix = ''
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# The first line must include the copyright string to avoid picking up random
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# other comment blocks at head of file.
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head = mark + r'Copyright \d+ (The Noms Authors|Attic Labs).*\n'
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body = '(' + mark + r'.*\n)*'
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suffix = ''
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if first != '':
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prefix = first + r'\n'
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if last != '':
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suffix = last + r'\n'
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# We want to make sure shebang files stay at head of file.
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shebang = r'(\#\!.+\n+|)'
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# Allow flow annotations
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flowAnotation = r'(// @flow\n+|)'
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return '^' + shebang + flowAnotation + '(' + prefix + head + body + suffix + r'\n)?'
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# Gets the license block for files with extension |ext|.
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def getLicense(ext):
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(first, mark, last) = comment_markers[ext]
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result = '\n'.join([mark + line for line in license])
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if first != '':
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result = first + '\n' + result
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if last != '':
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result = result + '\n' + last
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return r'\g<1>\g<2>' + result + '\n\n'
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if __name__ == '__main__':
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main()
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