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- #!/usr/bin/env python3
- import sys, os, subprocess
- def generate(infile, outfile, fallback):
- workdir = os.path.split(infile)[0]
- if workdir == '':
- workdir = '.'
- try:
- version = subprocess.check_output(['git', 'describe'], cwd=workdir).decode().strip()
- except (subprocess.CalledProcessError, OSError, UnicodeDecodeError):
- version = fallback
- with open(infile) as f:
- newdata = f.read().replace('@VERSION@', version)
- try:
- with open(outfile) as f:
- olddata = f.read()
- if olddata == newdata:
- return
- except OSError:
- pass
- with open(outfile, 'w') as f:
- f.write(newdata)
- if __name__ == '__main__':
- infile = sys.argv[1]
- outfile = sys.argv[2]
- fallback = sys.argv[3]
- generate(infile, outfile, fallback)
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