Collect number of builds and accumulated duration on Jenkins

collect.py

#!/usr/bin/env python3

import os
import re

start = 1472688000
end = 1475280000
build_count = 0
sum_duration = 0
for job_name in os.listdir():
    builds_path = os.path.join(job_name, 'builds')
    if not os.path.isdir(builds_path):
        continue
    for build_name in os.listdir(builds_path):
        build_path = os.path.join(builds_path, build_name)
        if os.path.islink(build_path) or not os.path.isdir(build_path):
            continue
        mtime = float(os.path.getmtime(build_path))
        if mtime < start or mtime >= end:
            continue
        build_count += 1
        build_xml_path = os.path.join(build_path, 'build.xml')
        if not os.path.exists(build_xml_path):
            continue
        with open(build_xml_path, 'r') as h:
            content = h.read()
        m = re.search('<duration>(.+)</duration>', content)
        if not m:
            print(build_xml_path)
            exit(1)
        sum_duration += int(m.group(1)) / 1000
print('%d builds' % build_count)
print('%d hours' % (sum_duration / 60 / 60))