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httppeer: implement command executor for version 2 peer...
httppeer: implement command executor for version 2 peer Now that we have a new API for issuing commands which is compatible with wire protocol version 2, we can start using it with wire protocol version 2. This commit replaces our hacky implementation of _call() with something a bit more robust based on the new command executor interface. We now have proper support for issuing multiple commands per HTTP request. Each HTTP request maintains its own client reactor. The implementation is similar to the one in the legacy wire protocol. We use a ThreadPoolExecutor for spinning up a thread to read the HTTP response in the background. This allows responses to resolve in any order. While not implemented on the server yet, a client could use concurrent.futures.as_completed() with a collection of futures and handle responses as they arrive from the server. The return value from issued commands is still a simple list of raw or decoded CBOR data. This is still super hacky. We will want a rich data type for representing command responses. But at least this commit gets us one step closer to a proper peer implementation. Differential Revision: https://phab.mercurial-scm.org/D3297
Gregory Szorc - - Load All Authors

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test-push.t
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==================================
Basic testing for the push command
==================================
Testing of the '--rev' flag
===========================
$ hg init test-revflag
$ hg -R test-revflag unbundle "$TESTDIR/bundles/remote.hg"
adding changesets
adding manifests
adding file changes
added 9 changesets with 7 changes to 4 files (+1 heads)
new changesets bfaf4b5cbf01:916f1afdef90
(run 'hg heads' to see heads, 'hg merge' to merge)
$ for i in 0 1 2 3 4 5 6 7 8; do
> echo
> hg init test-revflag-"$i"
> hg -R test-revflag push -r "$i" test-revflag-"$i"
> hg -R test-revflag-"$i" verify
> done
pushing to test-revflag-0
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
1 files, 1 changesets, 1 total revisions
pushing to test-revflag-1
searching for changes
adding changesets
adding manifests
adding file changes
added 2 changesets with 2 changes to 1 files
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
1 files, 2 changesets, 2 total revisions
pushing to test-revflag-2
searching for changes
adding changesets
adding manifests
adding file changes
added 3 changesets with 3 changes to 1 files
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
1 files, 3 changesets, 3 total revisions
pushing to test-revflag-3
searching for changes
adding changesets
adding manifests
adding file changes
added 4 changesets with 4 changes to 1 files
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
1 files, 4 changesets, 4 total revisions
pushing to test-revflag-4
searching for changes
adding changesets
adding manifests
adding file changes
added 2 changesets with 2 changes to 1 files
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
1 files, 2 changesets, 2 total revisions
pushing to test-revflag-5
searching for changes
adding changesets
adding manifests
adding file changes
added 3 changesets with 3 changes to 1 files
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
1 files, 3 changesets, 3 total revisions
pushing to test-revflag-6
searching for changes
adding changesets
adding manifests
adding file changes
added 4 changesets with 5 changes to 2 files
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
2 files, 4 changesets, 5 total revisions
pushing to test-revflag-7
searching for changes
adding changesets
adding manifests
adding file changes
added 5 changesets with 6 changes to 3 files
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
3 files, 5 changesets, 6 total revisions
pushing to test-revflag-8
searching for changes
adding changesets
adding manifests
adding file changes
added 5 changesets with 5 changes to 2 files
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
2 files, 5 changesets, 5 total revisions
$ cd test-revflag-8
$ hg pull ../test-revflag-7
pulling from ../test-revflag-7
searching for changes
adding changesets
adding manifests
adding file changes
added 4 changesets with 2 changes to 3 files (+1 heads)
new changesets c70afb1ee985:faa2e4234c7a
(run 'hg heads' to see heads, 'hg merge' to merge)
$ hg verify
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
4 files, 9 changesets, 7 total revisions
$ cd ..
Test server side validation during push
=======================================
$ hg init test-validation
$ cd test-validation
$ cat > .hg/hgrc <<EOF
> [server]
> validate=1
> EOF
$ echo alpha > alpha
$ echo beta > beta
$ hg addr
adding alpha
adding beta
$ hg ci -m 1
$ cd ..
$ hg clone test-validation test-validation-clone
updating to branch default
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
#if reporevlogstore
Test spurious filelog entries:
$ cd test-validation-clone
$ echo blah >> beta
$ cp .hg/store/data/beta.i tmp1
$ hg ci -m 2
$ cp .hg/store/data/beta.i tmp2
$ hg -q rollback
$ mv tmp2 .hg/store/data/beta.i
$ echo blah >> beta
$ hg ci -m '2 (corrupt)'
Expected to fail:
$ hg verify
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
beta@1: dddc47b3ba30 not in manifests
2 files, 2 changesets, 4 total revisions
1 integrity errors encountered!
(first damaged changeset appears to be 1)
[1]
$ hg push
pushing to $TESTTMP/test-validation
searching for changes
adding changesets
adding manifests
adding file changes
transaction abort!
rollback completed
abort: received spurious file revlog entry
[255]
$ hg -q rollback
$ mv tmp1 .hg/store/data/beta.i
$ echo beta > beta
Test missing filelog entries:
$ cp .hg/store/data/beta.i tmp
$ echo blah >> beta
$ hg ci -m '2 (corrupt)'
$ mv tmp .hg/store/data/beta.i
Expected to fail:
$ hg verify
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
beta@1: manifest refers to unknown revision dddc47b3ba30
2 files, 2 changesets, 2 total revisions
1 integrity errors encountered!
(first damaged changeset appears to be 1)
[1]
$ hg push
pushing to $TESTTMP/test-validation
searching for changes
adding changesets
adding manifests
adding file changes
transaction abort!
rollback completed
abort: missing file data for beta:dddc47b3ba30e54484720ce0f4f768a0f4b6efb9 - run hg verify
[255]
$ cd ..
#endif
Test push hook locking
=====================
$ hg init 1
$ echo '[ui]' >> 1/.hg/hgrc
$ echo 'timeout = 10' >> 1/.hg/hgrc
$ echo foo > 1/foo
$ hg --cwd 1 ci -A -m foo
adding foo
$ hg clone 1 2
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg clone 2 3
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cat <<EOF > $TESTTMP/debuglocks-pretxn-hook.sh
> hg debuglocks
> true
> EOF
$ echo '[hooks]' >> 2/.hg/hgrc
$ echo "pretxnchangegroup.a = sh $TESTTMP/debuglocks-pretxn-hook.sh" >> 2/.hg/hgrc
$ echo 'changegroup.push = hg push -qf ../1' >> 2/.hg/hgrc
$ echo bar >> 3/foo
$ hg --cwd 3 ci -m bar
$ hg --cwd 3 push ../2 --config devel.legacy.exchange=bundle1
pushing to ../2
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
lock: user *, process * (*s) (glob)
wlock: free
$ hg --cwd 1 --config extensions.strip= strip tip -q
$ hg --cwd 2 --config extensions.strip= strip tip -q
$ hg --cwd 3 push ../2 # bundle2+
pushing to ../2
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
lock: user *, process * (*s) (glob)
wlock: user *, process * (*s) (glob)
Test bare push with multiple race checking options
--------------------------------------------------
$ hg init test-bare-push-no-concurrency
$ hg init test-bare-push-unrelated-concurrency
$ hg -R test-revflag push -r 0 test-bare-push-no-concurrency --config server.concurrent-push-mode=strict
pushing to test-bare-push-no-concurrency
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
$ hg -R test-revflag push -r 0 test-bare-push-unrelated-concurrency --config server.concurrent-push-mode=check-related
pushing to test-bare-push-unrelated-concurrency
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
SEC: check for unsafe ssh url
$ cat >> $HGRCPATH << EOF
> [ui]
> ssh = sh -c "read l; read l; read l"
> EOF
$ hg -R test-revflag push 'ssh://-oProxyCommand=touch${IFS}owned/path'
pushing to ssh://-oProxyCommand%3Dtouch%24%7BIFS%7Downed/path
abort: potentially unsafe url: 'ssh://-oProxyCommand=touch${IFS}owned/path'
[255]
$ hg -R test-revflag push 'ssh://%2DoProxyCommand=touch${IFS}owned/path'
pushing to ssh://-oProxyCommand%3Dtouch%24%7BIFS%7Downed/path
abort: potentially unsafe url: 'ssh://-oProxyCommand=touch${IFS}owned/path'
[255]
$ hg -R test-revflag push 'ssh://fakehost|touch${IFS}owned/path'
pushing to ssh://fakehost%7Ctouch%24%7BIFS%7Downed/path
abort: no suitable response from remote hg!
[255]
$ hg -R test-revflag push 'ssh://fakehost%7Ctouch%20owned/path'
pushing to ssh://fakehost%7Ctouch%20owned/path
abort: no suitable response from remote hg!
[255]
$ [ ! -f owned ] || echo 'you got owned'