Mercurial > hg
view tests/test-obsolete-changeset-exchange.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 | 6b0741d6d234 |
children | c2380b448265 |
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Test changesets filtering during exchanges (some tests are still in test-obsolete.t) $ cat >> $HGRCPATH << EOF > [experimental] > evolution=createmarkers > EOF Push does not corrupt remote ---------------------------- Create a DAG where a changeset reuses a revision from a file first used in an extinct changeset. $ hg init local $ cd local $ echo 'base' > base $ hg commit -Am base adding base $ echo 'A' > A $ hg commit -Am A adding A $ hg up 0 0 files updated, 0 files merged, 1 files removed, 0 files unresolved $ hg revert -ar 1 adding A $ hg commit -Am "A'" created new head $ hg log -G --template='{desc} {node}' @ A' f89bcc95eba5174b1ccc3e33a82e84c96e8338ee | | o A 9d73aac1b2ed7d53835eaeec212ed41ea47da53a |/ o base d20a80d4def38df63a4b330b7fb688f3d4cae1e3 $ hg debugobsolete 9d73aac1b2ed7d53835eaeec212ed41ea47da53a f89bcc95eba5174b1ccc3e33a82e84c96e8338ee Push it. The bundle should not refer to the extinct changeset. $ hg init ../other $ hg push ../other pushing to ../other searching for changes adding changesets adding manifests adding file changes added 2 changesets with 2 changes to 2 files $ hg -R ../other verify checking changesets checking manifests crosschecking files in changesets and manifests checking files 2 files, 2 changesets, 2 total revisions Adding a changeset going extinct locally ------------------------------------------ Pull a changeset that will immediatly goes extinct (because you already have a marker to obsolete him) (test resolution of issue3788) $ hg phase --draft --force f89bcc95eba5 $ hg phase -R ../other --draft --force f89bcc95eba5 $ hg commit --amend -m "A''" $ hg --hidden --config extensions.mq= strip --no-backup f89bcc95eba5 $ hg pull ../other pulling from ../other searching for changes adding changesets adding manifests adding file changes added 1 changesets with 0 changes to 1 files (+1 heads) (run 'hg heads' to see heads, 'hg merge' to merge) check that bundle is not affected $ hg bundle --hidden --rev f89bcc95eba5 --base "f89bcc95eba5^" ../f89bcc95eba5.hg 1 changesets found $ hg --hidden --config extensions.mq= strip --no-backup f89bcc95eba5 $ hg unbundle ../f89bcc95eba5.hg adding changesets adding manifests adding file changes added 1 changesets with 0 changes to 1 files (+1 heads) (run 'hg heads' to see heads) $ cd .. pull does not fetch excessive changesets when common node is hidden (issue4982) ------------------------------------------------------------------------------- initial repo with server and client matching $ hg init pull-hidden-common $ cd pull-hidden-common $ touch foo $ hg -q commit -A -m initial $ echo 1 > foo $ hg commit -m 1 $ echo 2a > foo $ hg commit -m 2a $ cd .. $ hg clone --pull pull-hidden-common pull-hidden-common-client requesting all changes adding changesets adding manifests adding file changes added 3 changesets with 3 changes to 1 files updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved server obsoletes the old head $ cd pull-hidden-common $ hg -q up -r 1 $ echo 2b > foo $ hg -q commit -m 2b $ hg debugobsolete 6a29ed9c68defff1a139e5c6fa9696fb1a75783d bec0734cd68e84477ba7fc1d13e6cff53ab70129 $ cd .. client only pulls down 1 changeset $ cd pull-hidden-common-client $ hg pull --debug pulling from $TESTTMP/pull-hidden-common (glob) query 1; heads searching for changes taking quick initial sample query 2; still undecided: 2, sample size is: 2 2 total queries 1 changesets found list of changesets: bec0734cd68e84477ba7fc1d13e6cff53ab70129 listing keys for "phases" listing keys for "bookmarks" bundle2-output-bundle: "HG20", 3 parts total bundle2-output-part: "changegroup" (params: 1 mandatory 1 advisory) streamed payload bundle2-output-part: "listkeys" (params: 1 mandatory) 58 bytes payload bundle2-output-part: "listkeys" (params: 1 mandatory) empty payload bundle2-input-bundle: with-transaction bundle2-input-part: "changegroup" (params: 1 mandatory 1 advisory) supported adding changesets add changeset bec0734cd68e adding manifests adding file changes adding foo revisions added 1 changesets with 1 changes to 1 files (+1 heads) updating the branch cache bundle2-input-part: total payload size 476 bundle2-input-part: "listkeys" (params: 1 mandatory) supported bundle2-input-part: total payload size 58 bundle2-input-part: "listkeys" (params: 1 mandatory) supported bundle2-input-bundle: 2 parts total checking for updated bookmarks (run 'hg heads' to see heads, 'hg merge' to merge)