view tests/test-status-rev.t @ 24716:2abbf4750915

hook: forcibly flush stderr for Windows test stability

There are a handful of SSH related test failures on Windows.

  --- c:/Users/Matt/Projects/hg/tests/test-bundle2-exchange.t
  +++ c:/Users/Matt/Projects/hg/tests/test-bundle2-exchange.t.err
  @@ -305,16 +305,16 @@
     remote: added 1 changesets with 1 changes to 1 files
     remote: 1 new obsolescence markers
     updating bookmark book_5fdd
  +  pre-close-tip:02de42196ebe draft book_02de
  +  postclose-tip:02de42196ebe draft book_02de
  +  txnclose hook: HG_SOURCE=push-response HG_TXNNAME=push-response
  +  ssh://user@dummy/other HG_URL=ssh://user@dummy/other
     remote: pre-close-tip:5fddd98957c8 draft book_5fdd
     remote: pushkey: lock state after "bookmarks"
     remote: lock:  free
     remote: wlock: free
     remote: postclose-tip:5fddd98957c8 draft book_5fdd
     remote: txnclose hook: (env vars truncated)
  -  pre-close-tip:02de42196ebe draft book_02de
  -  postclose-tip:02de42196ebe draft book_02de
  -  txnclose hook: HG_SOURCE=push-response HG_TXNNAME=push-response
  -  ssh://user@dummy/other HG_URL=ssh://user@dummy/other
     $ hg -R other log -G
     o  6:5fddd98957c8 draft Nicolas Dumazet <...> book_5fdd C
     |

  --- c:/Users/Matt/Projects/hg/tests/test-ssh.t
  +++ c:/Users/Matt/Projects/hg/tests/test-ssh.t.err
  @@ -438,12 +438,12 @@
     $ hg push
     pushing to ssh://user@dummy/remote
     searching for changes
  +  local stdout
     remote: adding changesets
     remote: adding manifests
     remote: adding file changes
     remote: added 1 changesets with 1 changes to 1 files
  -  remote: KABOOM
  -  local stdout
  +  remote: KABOOM\r (esc)

     $ cd ..


What is happening is that no data is available in 'sshpeer.pipee' while the
command is executing.  As the command completes, local output is printed, and
then sshpeer.cleanup() is called.  When it calls 'self.pipeo.close()', the child
process is shutdown, flushing stderr.

As an experiment, I printed a line to stdout and another to stderr instead this
flush().  The stdout data was immediately available to the hg client, and none
of the stderr data was until the child exited.  At that point, pipee has all of
the buffered data, and it is read out and printed before the pipe is closed in
sshpeer.cleanup().  This is probably a known issue, since ui.write_err()
mentions that stderr may be buffered, and also flushes stderr.

It would be nice if there was a more general fix (there is one more test that
fails), but I'm not sure what it is.  I've seen (ancient) references [1] to
setvbuf() "crashing spectacularly" on some systems if any I/O has been done
already, so it seems worth avoiding.


https://sourceware.org/ml/gdb-patches/2013-08/msg00422.html

[1] https://groups.google.com/forum/#!msg/comp.lang.python/JT8LiYzYDEY/Qg9d1HwyjScJ

Tests of 'hg status --rev <rev>' to make sure status between <rev> and '.' get
combined correctly with the dirstate status.

  $ hg init

First commit

  $ python $TESTDIR/generate-working-copy-states.py state 2 1
  $ hg addremove --similarity 0
  adding content1_content1_content1-tracked
  adding content1_content1_content1-untracked
  adding content1_content1_content3-tracked
  adding content1_content1_content3-untracked
  adding content1_content1_missing-tracked
  adding content1_content1_missing-untracked
  adding content1_content2_content1-tracked
  adding content1_content2_content1-untracked
  adding content1_content2_content2-tracked
  adding content1_content2_content2-untracked
  adding content1_content2_content3-tracked
  adding content1_content2_content3-untracked
  adding content1_content2_missing-tracked
  adding content1_content2_missing-untracked
  adding content1_missing_content1-tracked
  adding content1_missing_content1-untracked
  adding content1_missing_content3-tracked
  adding content1_missing_content3-untracked
  adding content1_missing_missing-tracked
  adding content1_missing_missing-untracked
  $ hg commit -m first

Second commit

  $ python $TESTDIR/generate-working-copy-states.py state 2 2
  $ hg addremove --similarity 0
  removing content1_missing_content1-tracked
  removing content1_missing_content1-untracked
  removing content1_missing_content3-tracked
  removing content1_missing_content3-untracked
  removing content1_missing_missing-tracked
  removing content1_missing_missing-untracked
  adding missing_content2_content2-tracked
  adding missing_content2_content2-untracked
  adding missing_content2_content3-tracked
  adding missing_content2_content3-untracked
  adding missing_content2_missing-tracked
  adding missing_content2_missing-untracked
  $ hg commit -m second

Working copy

  $ python $TESTDIR/generate-working-copy-states.py state 2 wc
  $ hg addremove --similarity 0
  adding content1_missing_content1-tracked
  adding content1_missing_content1-untracked
  adding content1_missing_content3-tracked
  adding content1_missing_content3-untracked
  adding content1_missing_missing-tracked
  adding content1_missing_missing-untracked
  adding missing_missing_content3-tracked
  adding missing_missing_content3-untracked
  adding missing_missing_missing-tracked
  adding missing_missing_missing-untracked
  $ hg forget *_*_*-untracked
  $ rm *_*_missing-*

Status compared to parent of the working copy, i.e. the dirstate status

  $ hg status -A --rev 1 'glob:missing_content2_content3-tracked'
  M missing_content2_content3-tracked
  $ hg status -A --rev 1 'glob:missing_content2_content2-tracked'
  C missing_content2_content2-tracked
  $ hg status -A --rev 1 'glob:missing_missing_content3-tracked'
  A missing_missing_content3-tracked
  $ hg status -A --rev 1 'glob:missing_missing_content3-untracked'
  ? missing_missing_content3-untracked
  $ hg status -A --rev 1 'glob:missing_content2_*-untracked'
  R missing_content2_content2-untracked
  R missing_content2_content3-untracked
  R missing_content2_missing-untracked
  $ hg status -A --rev 1 'glob:missing_*_missing-tracked'
  ! missing_content2_missing-tracked
  ! missing_missing_missing-tracked
#if windows
  $ hg status -A --rev 1 'glob:missing_missing_missing-untracked'
  missing_missing_missing-untracked: The system cannot find the file specified
#else
  $ hg status -A --rev 1 'glob:missing_missing_missing-untracked'
  missing_missing_missing-untracked: No such file or directory
#endif

Status between first and second commit. Should ignore dirstate status.

  $ hg status -A --rev 0:1 'glob:content1_content2_*'
  M content1_content2_content1-tracked
  M content1_content2_content1-untracked
  M content1_content2_content2-tracked
  M content1_content2_content2-untracked
  M content1_content2_content3-tracked
  M content1_content2_content3-untracked
  M content1_content2_missing-tracked
  M content1_content2_missing-untracked
  $ hg status -A --rev 0:1 'glob:content1_content1_*'
  C content1_content1_content1-tracked
  C content1_content1_content1-untracked
  C content1_content1_content3-tracked
  C content1_content1_content3-untracked
  C content1_content1_missing-tracked
  C content1_content1_missing-untracked
  $ hg status -A --rev 0:1 'glob:missing_content2_*'
  A missing_content2_content2-tracked
  A missing_content2_content2-untracked
  A missing_content2_content3-tracked
  A missing_content2_content3-untracked
  A missing_content2_missing-tracked
  A missing_content2_missing-untracked
  $ hg status -A --rev 0:1 'glob:content1_missing_*'
  R content1_missing_content1-tracked
  R content1_missing_content1-untracked
  R content1_missing_content3-tracked
  R content1_missing_content3-untracked
  R content1_missing_missing-tracked
  R content1_missing_missing-untracked
  $ hg status -A --rev 0:1 'glob:missing_missing_*'

Status compared to one revision back, checking that the dirstate status
is correctly combined with the inter-revision status

  $ hg status -A --rev 0 'glob:content1_*_content[23]-tracked'
  M content1_content1_content3-tracked
  M content1_content2_content2-tracked
  M content1_content2_content3-tracked
  M content1_missing_content3-tracked
  $ hg status -A --rev 0 'glob:content1_*_content1-tracked'
  C content1_content1_content1-tracked
  C content1_content2_content1-tracked
  C content1_missing_content1-tracked
  $ hg status -A --rev 0 'glob:missing_*_content?-tracked'
  A missing_content2_content2-tracked
  A missing_content2_content3-tracked
  A missing_missing_content3-tracked
BROKEN: missing_content2_content[23]-untracked exist, so should be listed
  $ hg status -A --rev 0 'glob:missing_*_content?-untracked'
  ? missing_missing_content3-untracked
  $ hg status -A --rev 0 'glob:content1_*_*-untracked'
  R content1_content1_content1-untracked
  R content1_content1_content3-untracked
  R content1_content1_missing-untracked
  R content1_content2_content1-untracked
  R content1_content2_content2-untracked
  R content1_content2_content3-untracked
  R content1_content2_missing-untracked
  R content1_missing_content1-untracked
  R content1_missing_content3-untracked
  R content1_missing_missing-untracked
  $ hg status -A --rev 0 'glob:*_*_missing-tracked'
  ! content1_content1_missing-tracked
  ! content1_content2_missing-tracked
  ! content1_missing_missing-tracked
  ! missing_content2_missing-tracked
  ! missing_missing_missing-tracked
  $ hg status -A --rev 0 'glob:missing_*_missing-untracked'