view tests/test-merge-subrepos.t @ 20542:be27652675ce

util: debugstacktrace, flush before and after writing

Close another stream (default stdout, which often is buffered) before writing
to the primary stream (default stderr, which often is unbuffered). The primary
stream is also flushed after writing (in case it is buffered).

This fixes non-deterministic output order, especially on windows.

  $ hg init

  $ echo a > a
  $ hg ci -qAm 'add a'

  $ hg init subrepo
  $ echo 'subrepo = http://example.net/libfoo' > .hgsub
  $ hg ci -qAm 'added subrepo'

  $ hg up -qC 0
  $ echo ax > a
  $ hg ci -m 'changed a'
  created new head

  $ hg up -qC 1
  $ cd subrepo
  $ echo b > b
  $ hg add b
  $ cd ..

Should fail, since there are added files to subrepo:

  $ hg merge
  abort: uncommitted changes in subrepository 'subrepo'
  [255]