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31 lines
934 B
Python
31 lines
934 B
Python
""" This file generates a graph of the dependencies for the ninja build."""
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import sys
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def ninja_to_dot():
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def last_component(path):
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return path.split('/')[-1]
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print("digraph G {")
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print('rankdir="LR";')
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for line in sys.stdin:
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line = line.rstrip()
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parts = line.split(' ')
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if parts[0] == 'build':
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# the output file is the first argument; strip off the colon that
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# comes from ninja syntax
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outfile = last_component(parts[1][:-1])
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operation = parts[2]
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infiles = [last_component(part) for part in parts[3:]]
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for infile in infiles:
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if infile == '|':
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# external dependencies start here; let's not graph those
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break
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print('"%s" -> "%s" [label="%s"]' % (infile, outfile, operation))
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print("}")
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if __name__ == '__main__':
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ninja_to_dot()
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