tests/test-trusted.py.out

vfs: use checkambigatclosing in checkambig=True but atomictemp=False case

In Mercurial source tree, opening a file in "a"/"a+" mode like below
doesn't specify atomictemp=True for vfs, and this avoids file stat
ambiguity check by atomictempfile.

  - writing changes out in revlog layer uses "a+" mode
  - truncation in repair.strip() uses "a" mode
  - truncation in transaction._playback() uses "a" mode

If steps below occurs at "the same time in sec", all of mtime, ctime
and size are same between (1) and (3).

  1. append data to revlog-style file (and close transaction)
  2. discard appended data by truncation (strip or rollback)
  3. append same size but different data to revlog-style file again

Therefore, cache validation doesn't work after (3) as expected.

This patch uses checkambigatclosing in checkambig=True but
atomictemp=False case, to check (and get rid of) file stat ambiguity
at closing.

This is a part of ExactCacheValidationPlan.

    https://www.mercurial-scm.org/wiki/ExactCacheValidationPlan

# same user, same group
trusted
    global = /some/path
    local = /another/path
untrusted
. . global = /some/path
. . local = /another/path

# same user, different group
trusted
    global = /some/path
    local = /another/path
untrusted
. . global = /some/path
. . local = /another/path

# different user, same group
not trusting file .hg/hgrc from untrusted user abc, group bar
trusted
    global = /some/path
untrusted
. . global = /some/path
. . local = /another/path

# different user, same group, but we trust the group
trusted
    global = /some/path
    local = /another/path
untrusted
. . global = /some/path
. . local = /another/path

# different user, different group
not trusting file .hg/hgrc from untrusted user abc, group def
trusted
    global = /some/path
untrusted
. . global = /some/path
. . local = /another/path

# different user, different group, but we trust the user
trusted
    global = /some/path
    local = /another/path
untrusted
. . global = /some/path
. . local = /another/path

# different user, different group, but we trust the group
trusted
    global = /some/path
    local = /another/path
untrusted
. . global = /some/path
. . local = /another/path

# different user, different group, but we trust the user and the group
trusted
    global = /some/path
    local = /another/path
untrusted
. . global = /some/path
. . local = /another/path

# we trust all users
# different user, different group
trusted
    global = /some/path
    local = /another/path
untrusted
. . global = /some/path
. . local = /another/path

# we trust all groups
# different user, different group
trusted
    global = /some/path
    local = /another/path
untrusted
. . global = /some/path
. . local = /another/path

# we trust all users and groups
# different user, different group
trusted
    global = /some/path
    local = /another/path
untrusted
. . global = /some/path
. . local = /another/path

# we don't get confused by users and groups with the same name
# different user, different group
not trusting file .hg/hgrc from untrusted user abc, group def
trusted
    global = /some/path
untrusted
. . global = /some/path
. . local = /another/path

# list of user names
# different user, different group, but we trust the user
trusted
    global = /some/path
    local = /another/path
untrusted
. . global = /some/path
. . local = /another/path

# list of group names
# different user, different group, but we trust the group
trusted
    global = /some/path
    local = /another/path
untrusted
. . global = /some/path
. . local = /another/path

# Can't figure out the name of the user running this process
# different user, different group
not trusting file .hg/hgrc from untrusted user abc, group def
trusted
    global = /some/path
untrusted
. . global = /some/path
. . local = /another/path

# prints debug warnings
# different user, different group
not trusting file .hg/hgrc from untrusted user abc, group def
trusted
ignoring untrusted configuration option paths.local = /another/path
    global = /some/path
untrusted
. . global = /some/path
. ignoring untrusted configuration option paths.local = /another/path
. local = /another/path

# report_untrusted enabled without debug hides warnings
# different user, different group
trusted
    global = /some/path
untrusted
. . global = /some/path
. . local = /another/path

# report_untrusted enabled with debug shows warnings
# different user, different group
not trusting file .hg/hgrc from untrusted user abc, group def
trusted
ignoring untrusted configuration option paths.local = /another/path
    global = /some/path
untrusted
. . global = /some/path
. ignoring untrusted configuration option paths.local = /another/path
. local = /another/path

# ui.readconfig sections
quux

# read trusted, untrusted, new ui, trusted
not trusting file foobar from untrusted user abc, group def
trusted:
ignoring untrusted configuration option foobar.baz = quux
None
untrusted:
quux

# error handling
# file doesn't exist
# same user, same group
# different user, different group

# parse error
# different user, different group
not trusting file .hg/hgrc from untrusted user abc, group def
('foo', '.hg/hgrc:1')
# same user, same group
('foo', '.hg/hgrc:1')