view contrib/hammerclient.py @ 5680:18a70ae9fb0b

topic: add a basic in-memory cache for topic information

Right now reading topic information twice means we uncompress a full revision
twice. On a simple `hg topic --age` in my mercurial clone, the total runtime
goes from 40s to 10s. Still too slow, but significantly less.

#!/usr/bin/env python
import os
import sys
import subprocess

if len(sys.argv) < 2:
    execname = os.path.basename(sys.argv[0])
    sys.stderr.write("usage: %s CLIENT_ID\n" % execname)

client_id = sys.argv[1]

subprocess.check_call(['hg', 'branch', "--force", "hammer-branch-%s" % client_id])

while True:
    subprocess.check_call([
        'hg', 'commit',
        "--config", "ui.allowemptycommit=yes",
        "--message", "hammer-%s" % client_id,
    ])
    nodeid = subprocess.check_output([
        'hg', 'log', '--rev', '.', '--template', '{node}'
    ])
    subprocess.check_call([
        'hg', 'debugobsolete', ''.join(reversed(nodeid)), nodeid
    ])
    subprocess.check_call(['hg', 'pull'])
    subprocess.check_call(['hg', 'push', '--force'])