view tests/test-push.t @ 49000:dd6b67d5c256 stable

rust: fix unsound `OwningDirstateMap`

As per the previous patch, `OwningDirstateMap` is unsound. Self-referential
structs are difficult to implement correctly in Rust since the compiler is
free to move structs around as much as it wants to. They are also very rarely
needed in practice, so the state-of-the-art on how they should be done within
the Rust rules is still a bit new.

The crate `ouroboros` is an attempt at providing a safe way (in the Rust sense)
of declaring self-referential structs. It is getting a lot attention and was
improved very quickly when soundness issues were found in the past: rather than
relying on our own (limited) review circle, we might as well use the de-facto
common crate to fix this problem. This will give us a much better chance of
finding issues should any new ones be discovered as well as the benefit of
fewer `unsafe` APIs of our own.

I was starting to think about how I would present a safe API to the old struct
but soon realized that the callback-based approach was already done in
`ouroboros`, along with a lot more care towards refusing incorrect structs.

In short: we don't return a mutable reference to the `DirstateMap` anymore, we
expect users of its API to pass a `FnOnce` that takes the map as an argument.
This allows our `OwningDirstateMap` to control the input and output lifetimes
of the code that modifies it to prevent such issues.

Changing to `ouroboros` meant changing every API with it, but it is relatively
low churn in the end. It correctly identified the example buggy modification of
`copy_map_insert` outlined in the previous patch as violating the borrow rules.

Differential Revision: https://phab.mercurial-scm.org/D12429

==================================
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 (9 drafts)
  (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
  checked 1 changesets with 1 changes to 1 files
  
  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
  checked 2 changesets with 2 changes to 1 files
  
  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
  checked 3 changesets with 3 changes to 1 files
  
  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
  checked 4 changesets with 4 changes to 1 files
  
  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
  checked 2 changesets with 2 changes to 1 files
  
  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
  checked 3 changesets with 3 changes to 1 files
  
  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
  checked 4 changesets with 5 changes to 2 files
  
  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
  checked 5 changesets with 6 changes to 3 files
  
  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
  checked 5 changesets with 5 changes to 2 files

  $ 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
  checked 9 changesets with 7 changes to 4 files

  $ 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
  checked 2 changesets with 4 changes to 2 files
  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
  checked 2 changesets with 2 changes to 2 files
  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
  lock:  user *, process * (*s) (glob)
  wlock: free
  added 1 changesets with 1 changes to 1 files

  $ 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
  lock:  user *, process * (*s) (glob)
  wlock: user *, process * (*s) (glob)
  added 1 changesets with 1 changes to 1 files

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'

Test `commands.push.require-revs`
---------------------------------

  $ hg clone -q test-revflag test-require-revs-source
  $ hg init test-require-revs-dest
  $ cd test-require-revs-source
  $ cat >> .hg/hgrc << EOF
  > [paths]
  > default = ../test-require-revs-dest
  > [commands]
  > push.require-revs=1
  > EOF
  $ hg push
  pushing to $TESTTMP/test-require-revs-dest
  abort: no revisions specified to push
  (did you mean "hg push -r ."?)
  [10]
  $ hg push -r 0
  pushing to $TESTTMP/test-require-revs-dest
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files
  $ hg bookmark -r 0 push-this-bookmark
(test that -B (bookmark) works for specifying "revs")
  $ hg push -B push-this-bookmark
  pushing to $TESTTMP/test-require-revs-dest
  searching for changes
  no changes found
  exporting bookmark push-this-bookmark
  [1]
(test that -b (branch)  works for specifying "revs")
  $ hg push -b default
  pushing to $TESTTMP/test-require-revs-dest
  searching for changes
  abort: push creates new remote head [0-9a-f]+ (re)
  (merge or see 'hg help push' for details about pushing new heads)
  [20]
(demonstrate that even though we don't have anything to exchange, we're still
showing the error)
  $ hg push
  pushing to $TESTTMP/test-require-revs-dest
  abort: no revisions specified to push
  (did you mean "hg push -r ."?)
  [10]
  $ hg push --config paths.default:pushrev=0
  pushing to $TESTTMP/test-require-revs-dest
  searching for changes
  no changes found
  [1]