rust/util/versions.py

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#!/usr/bin/env python
import json
import os
import sys
from lintlib import log
def key(v):
if v == 'master':
return float('inf')
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if v == 'stable':
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return sys.maxsize
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if v == 'beta':
return sys.maxsize - 1
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v = v.replace('v', '').replace('rust-', '')
s = 0
for i, val in enumerate(v.split('.')[::-1]):
s += int(val) * 100**i
return s
def main():
if len(sys.argv) < 2:
print("Error: specify output directory")
return
outdir = sys.argv[1]
versions = [
dir for dir in os.listdir(outdir) if not dir.startswith(".") and os.path.isdir(os.path.join(outdir, dir))
]
versions.sort(key=key)
with open(os.path.join(outdir, "versions.json"), "w") as fp:
json.dump(versions, fp, indent=2)
log.info("wrote JSON for great justice")
if __name__ == "__main__":
main()