view contrib/debugshell.py @ 27394:b4d7743e174a

run-tests: add more scheduling weight hints

The scheduler would like to order test execution by expected run-time,
but doesn't know much about how long a test will run. It thus uses
test size as a proxy for run-time. By tweaking these weights we can
keep CPUs more evenly busy and thus finish sooner.

In particular, this change pushes the three currently longest-running
tests closer to the beginning:

test-largefiles-update.t
test-run-tests.t
test-gendoc.t

As the largefiles test is currently the long pole of the test suite
with higher -j factors, the sooner it's started, the sooner the tests
can end.

We also up the weight on some shorter but long-running tests that
could have previously delayed completion with low -j factors by
running very close to the end.

# debugshell extension
"""a python shell with repo, changelog & manifest objects"""

import sys
import mercurial
import code
from mercurial import cmdutil

cmdtable = {}
command = cmdutil.command(cmdtable)

def pdb(ui, repo, msg, **opts):
    objects = {
        'mercurial': mercurial,
        'repo': repo,
        'cl': repo.changelog,
        'mf': repo.manifest,
    }

    code.interact(msg, local=objects)

def ipdb(ui, repo, msg, **opts):
    import IPython

    cl = repo.changelog
    mf = repo.manifest
    cl, mf # use variables to appease pyflakes

    IPython.embed()

@command('debugshell|dbsh', [])
def debugshell(ui, repo, **opts):
    bannermsg = "loaded repo : %s\n" \
                "using source: %s" % (repo.root,
                                      mercurial.__path__[0])

    pdbmap = {
        'pdb'  : 'code',
        'ipdb' : 'IPython'
    }

    debugger = ui.config("ui", "debugger")
    if not debugger:
        debugger = 'pdb'

    # if IPython doesn't exist, fallback to code.interact
    try:
        __import__(pdbmap[debugger])
    except ImportError:
        ui.warn("%s debugger specified but %s module was not found\n"
                % (debugger, pdbmap[debugger]))
        debugger = 'pdb'

    getattr(sys.modules[__name__], debugger)(ui, repo, bannermsg, **opts)