Mercurial > hg
view tests/test-update-atomic.t @ 42194:0da689a60163
fix: allow fixer tools to return metadata in addition to the file content
With this change, fixer tools can be configured to output a JSON object that
will be parsed and passed to hooks that can be used to print summaries of what
code was formatted or perform other post-fixing work.
The motivation for this change is to allow parallel executions of a
"meta-formatter" tool to report back statistics, which are then aggregated and
processed after all formatting has completed. Providing an extensible mechanism
inside fix.py is far simpler, and more portable, than trying to make a tool
like this communicate through some other channel.
Differential Revision: https://phab.mercurial-scm.org/D6167
author | Danny Hooper <hooper@google.com> |
---|---|
date | Thu, 21 Mar 2019 18:32:45 -0700 |
parents | 0a0927f7549d |
children | 1bc345d488fd |
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#require execbit unix-permissions Checking that experimental.atomic-file works. $ cat > $TESTTMP/show_mode.py <<EOF > from __future__ import print_function > import os > import stat > import sys > ST_MODE = stat.ST_MODE > > for file_path in sys.argv[1:]: > file_stat = os.stat(file_path) > octal_mode = oct(file_stat[ST_MODE] & 0o777).replace('o', '') > print("%s:%s" % (file_path, octal_mode)) > > EOF $ hg init repo $ cd repo $ cat > .hg/showwrites.py <<EOF > from __future__ import print_function > from mercurial import pycompat > from mercurial.utils import stringutil > def uisetup(ui): > from mercurial import vfs > class newvfs(vfs.vfs): > def __call__(self, *args, **kwargs): > print(pycompat.sysstr(stringutil.pprint( > ('vfs open', args, sorted(list(kwargs.items())))))) > return super(newvfs, self).__call__(*args, **kwargs) > vfs.vfs = newvfs > EOF $ for v in a1 a2 b1 b2 c ro; do echo $v > $v; done $ chmod +x b* $ hg commit -Aqm _ # We check that # - the changes are actually atomic # - that permissions are correct (all 4 cases of (executable before) * (executable after)) # - that renames work, though they should be atomic anyway # - that it works when source files are read-only (but directories are read-write still) $ for v in a1 a2 b1 b2 ro; do echo changed-$v > $v; done $ chmod -x *1; chmod +x *2 $ hg rename c d $ hg commit -qm _ Check behavior without update.atomic-file $ hg update -r 0 -q $ hg update -r 1 --config extensions.showwrites=.hg/showwrites.py 2>&1 | grep "a1'.*wb" ('vfs open', ('a1', 'wb'), [('atomictemp', False), ('backgroundclose', True)]) $ python $TESTTMP/show_mode.py * a1:0644 a2:0755 b1:0644 b2:0755 d:0644 ro:0644 Add a second revision for the ro file so we can test update when the file is present or not $ echo "ro" > ro $ hg commit -qm _ Check behavior without update.atomic-file first $ hg update -C -r 0 -q $ hg update -r 1 6 files updated, 0 files merged, 1 files removed, 0 files unresolved $ python $TESTTMP/show_mode.py * a1:0644 a2:0755 b1:0644 b2:0755 d:0644 ro:0644 Manually reset the mode of the read-only file $ chmod a-w ro $ python $TESTTMP/show_mode.py ro ro:0444 Now the file is present, try to update and check the permissions of the file $ hg up -r 2 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ python $TESTTMP/show_mode.py ro ro:0644 # The file which was read-only is now writable in the default behavior Check behavior with update.atomic-files $ cat >> .hg/hgrc <<EOF > [experimental] > update.atomic-file = true > EOF $ hg update -C -r 0 -q $ hg update -r 1 --config extensions.showwrites=.hg/showwrites.py 2>&1 | grep "a1'.*wb" ('vfs open', ('a1', 'wb'), [('atomictemp', True), ('backgroundclose', True)]) $ hg st -A --rev 1 C a1 C a2 C b1 C b2 C d C ro Check the file permission after update $ python $TESTTMP/show_mode.py * a1:0644 a2:0755 b1:0644 b2:0755 d:0644 ro:0644 Manually reset the mode of the read-only file $ chmod a-w ro $ python $TESTTMP/show_mode.py ro ro:0444 Now the file is present, try to update and check the permissions of the file $ hg update -r 2 --traceback 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ python $TESTTMP/show_mode.py ro ro:0644 # The behavior is the same as without atomic update