largefiles: check existence of the file with case awareness of the filesystem
Before this patch, largefiles extension always unlinks largefiles
untracked on the target context in merging/updating after updating
working directory.
For example, it is assumed that the revision X consists of ".hglf/A"
(and "A" implicitly) and revision Y consists of "a" (not ".hglf/A").
In the case of updating from X to Y, largefiles extension tries to
unlink "A" after updating "a" in working directory. This causes
unexpected unlinking "a" on the case insensitive filesystem.
This patch checks existence of the file in the working context with
case awareness of the filesystem to prevent from such unexpected
unlinking.
"lfcommands._updatelfile()" also unlinks target file in the case
"largefile is tracked in the target context, but fails to be fetched".
This patch doesn't apply "repo.dirstate.normalize()" in this case,
because it should be already ensured in the manifest merging that
there is no normal file colliding against any largefiles.
# memory.py - track memory usage
#
# Copyright 2009 Matt Mackall <mpm@selenic.com> and others
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
'''helper extension to measure memory usage
Reads current and peak memory usage from ``/proc/self/status`` and
prints it to ``stderr`` on exit.
'''
import atexit
def memusage(ui):
"""Report memory usage of the current process."""
status = None
result = {'peak': 0, 'rss': 0}
try:
# This will only work on systems with a /proc file system
# (like Linux).
status = open('/proc/self/status', 'r')
for line in status:
parts = line.split()
key = parts[0][2:-1].lower()
if key in result:
result[key] = int(parts[1])
finally:
if status is not None:
status.close()
ui.write_err(", ".join(["%s: %.1f MiB" % (key, value / 1024.0)
for key, value in result.iteritems()]) + "\n")
def extsetup(ui):
atexit.register(memusage, ui)