Mercurial > hg
view tests/test-committer.t @ 30446:b324b4e431e5
posix: give checkexec a fast path; keep the check files and test read only
Before, Mercurial would create a new temporary file every time, stat it, change
its exec mode, stat it again, and delete it. Most of this dance was done to
handle the rare and not-so-essential case of VFAT mounts on unix. The cost of
that was paid by the much more common and important case of using normal file
systems.
Instead, try to create and preserve .hg/cache/checkisexec and
.hg/cache/checknoexec with and without exec flag set. If the files exist and
have correct exec flags set, we can conclude that that file system supports the
exec flag. Best case, the whole exec check can thus be done with two stat
calls. Worst case, we delete the wrong files and check as usual. That will be
because temporary loss of exec bit or on file systems without support for the
exec bit. In that case we check as we did before, with the additional overhead
of one extra stat call.
It is possible that this different test algorithm in some cases on odd file
systems will give different behaviour. Again, I think it will be rare and
special cases and I think it is worth the risk.
test-clone.t happens to show the situation where checkisexec is left behind
from the old style check, while checknoexec only will be created next time a
exec check will be performed.
author | Mads Kiilerich <madski@unity3d.com> |
---|---|
date | Wed, 14 Jan 2015 01:15:26 +0100 |
parents | ad2cd2ef25d9 |
children | 95c4cca641f6 |
line wrap: on
line source
$ unset HGUSER $ EMAIL="My Name <myname@example.com>" $ export EMAIL $ hg init test $ cd test $ touch asdf $ hg add asdf $ hg commit -m commit-1 $ hg tip changeset: 0:53f268a58230 tag: tip user: My Name <myname@example.com> date: Thu Jan 01 00:00:00 1970 +0000 summary: commit-1 $ unset EMAIL $ echo 1234 > asdf $ hg commit -u "foo@bar.com" -m commit-1 $ hg tip changeset: 1:3871b2a9e9bf tag: tip user: foo@bar.com date: Thu Jan 01 00:00:00 1970 +0000 summary: commit-1 $ echo "[ui]" >> .hg/hgrc $ echo "username = foobar <foo@bar.com>" >> .hg/hgrc $ echo 12 > asdf $ hg commit -m commit-1 $ hg tip changeset: 2:8eeac6695c1c tag: tip user: foobar <foo@bar.com> date: Thu Jan 01 00:00:00 1970 +0000 summary: commit-1 $ echo 1 > asdf $ hg commit -u "foo@bar.com" -m commit-1 $ hg tip changeset: 3:957606a725e4 tag: tip user: foo@bar.com date: Thu Jan 01 00:00:00 1970 +0000 summary: commit-1 $ echo 123 > asdf $ echo "[ui]" > .hg/hgrc $ echo "username = " >> .hg/hgrc $ hg commit -m commit-1 abort: no username supplied (use 'hg config --edit' to set your username) [255] # test alternate config var $ echo 1234 > asdf $ echo "[ui]" > .hg/hgrc $ echo "user = Foo Bar II <foo2@bar.com>" >> .hg/hgrc $ hg commit -m commit-1 $ hg tip changeset: 4:6f24bfb4c617 tag: tip user: Foo Bar II <foo2@bar.com> date: Thu Jan 01 00:00:00 1970 +0000 summary: commit-1 # test prompt username $ cat > .hg/hgrc <<EOF > [ui] > askusername = True > EOF $ echo 12345 > asdf $ hg commit --config ui.interactive=False -m ask enter a commit username: no username found, using '[^']*' instead (re) $ hg rollback -q $ hg commit --config ui.interactive=True -m ask <<EOF > Asked User <ask@example.com> > EOF enter a commit username: Asked User <ask@example.com> $ hg tip changeset: 5:84c91d963b70 tag: tip user: Asked User <ask@example.com> date: Thu Jan 01 00:00:00 1970 +0000 summary: ask # test no .hg/hgrc (uses generated non-interactive username) $ echo space > asdf $ rm .hg/hgrc $ hg commit -m commit-1 2>&1 no username found, using '[^']*' instead (re) $ echo space2 > asdf $ hg commit -u ' ' -m commit-1 transaction abort! rollback completed abort: empty username! [255] # don't add tests here, previous test is unstable $ cd ..