view tests/test-revlog-ancestry.py @ 25775:220d9ae6a9a8

convert: if getting a file from Perforce fails try to get it one more time

When converting a particularly large Perforce changelist (especially with  some
big files), it is very likely to run into an intermittent network issue (e.g.
WSAECONNRESET or WSAETIMEDOUT) getting one of the files, which will result in
the entire changelist converting being aborted. Which can be quite unfortunate
since you might have waited hours getting all other files. To mitigate this
let's attempt to get the file one more time, escalating original exception
if that attempt fails.

import os
from mercurial import hg, ui, merge

u = ui.ui()

repo = hg.repository(u, 'test1', create=1)
os.chdir('test1')

def commit(text, time):
    repo.commit(text=text, date="%d 0" % time)

def addcommit(name, time):
    f = open(name, 'w')
    f.write('%s\n' % name)
    f.close()
    repo[None].add([name])
    commit(name, time)

def update(rev):
    merge.update(repo, rev, False, True, False)

def merge_(rev):
    merge.update(repo, rev, True, False, False)

if __name__ == '__main__':
    addcommit("A", 0)
    addcommit("B", 1)

    update(0)
    addcommit("C", 2)

    merge_(1)
    commit("D", 3)

    update(2)
    addcommit("E", 4)
    addcommit("F", 5)

    update(3)
    addcommit("G", 6)

    merge_(5)
    commit("H", 7)

    update(5)
    addcommit("I", 8)

    # Ancestors
    print 'Ancestors of 5'
    for r in repo.changelog.ancestors([5]):
        print r,

    print '\nAncestors of 6 and 5'
    for r in repo.changelog.ancestors([6, 5]):
        print r,

    print '\nAncestors of 5 and 4'
    for r in repo.changelog.ancestors([5, 4]):
        print r,

    print '\nAncestors of 7, stop at 6'
    for r in repo.changelog.ancestors([7], 6):
        print r,

    print '\nAncestors of 7, including revs'
    for r in repo.changelog.ancestors([7], inclusive=True):
        print r,

    print '\nAncestors of 7, 5 and 3, including revs'
    for r in repo.changelog.ancestors([7, 5, 3], inclusive=True):
        print r,

    # Descendants
    print '\n\nDescendants of 5'
    for r in repo.changelog.descendants([5]):
        print r,

    print '\nDescendants of 5 and 3'
    for r in repo.changelog.descendants([5, 3]):
        print r,

    print '\nDescendants of 5 and 4'
    for r in repo.changelog.descendants([5, 4]):
        print r,