procutils: don't try to get `.buffer` if sys.stdin is None While hunting down following test failure of test-chg.t on Python 3, I stumbled the case when `.buffer` is not available as sys.stdin is None. --- /home/pulkit/repo/hg-committed/tests/test-chg.t +++ /home/pulkit/repo/hg-committed/tests/test-chg.t.err @@ -203,7 +203,31 @@ $ CHGDEBUG=1 chg version -q 0<&- chg: debug: * stdio fds are missing (glob) chg: debug: * execute original hg (glob) - Mercurial Distributed SCM * (glob) + Traceback (most recent call last): + File "/tmp/hgtests.avspvsq4/install/bin/hg", line 43, in <module> + dispatch.run() + File "/usr/lib/python3.6/importlib/util.py", line 233, in __getattribute__ + self.__spec__.loader.exec_module(self) + File "<frozen importlib._bootstrap_external>", line 678, in exec_module + File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed + File "/tmp/hgtests.avspvsq4/install/lib/python/mercurial/dispatch.py", line 726, in <module> + class lazyaliasentry(object): + File "/tmp/hgtests.avspvsq4/install/lib/python/mercurial/dispatch.py", line 737, in lazyaliasentry + @util.propertycache + File "/usr/lib/python3.6/importlib/util.py", line 233, in __getattribute__ + self.__spec__.loader.exec_module(self) + File "<frozen importlib._bootstrap_external>", line 678, in exec_module + File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed + File "/tmp/hgtests.avspvsq4/install/lib/python/mercurial/util.py", line 3473, in <module> + f=procutil.stderr, + File "/usr/lib/python3.6/importlib/util.py", line 233, in __getattribute__ + self.__spec__.loader.exec_module(self) + File "<frozen importlib._bootstrap_external>", line 678, in exec_module + File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed + File "/tmp/hgtests.avspvsq4/install/lib/python/mercurial/utils/procutil.py", line 127, in <module> + stdin = sys.stdin.buffer + AttributeError: 'NoneType' object has no attribute 'buffer' + [1] server lifecycle ---------------- Differential Revision: https://phab.mercurial-scm.org/D9500

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#require no-windows

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  $ . "$TESTDIR/remotefilelog-library.sh"

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  $ hg init master

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  $ cd master

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  $ cat >> .hg/hgrc <<EOF

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  > [remotefilelog]

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  > server=True

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  > EOF

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  $ echo x > x

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  $ hg commit -qAm x

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  $ echo y >> x

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  $ hg commit -qAm y

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  $ echo z >> x

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  $ hg commit -qAm z

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  $ hg update 1

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  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

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  $ echo w >> x

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  $ hg commit -qAm w

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  $ cd ..

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Shallow clone and activate getflogheads testing extension

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  $ hgcloneshallow ssh://user@dummy/master shallow --noupdate

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  streaming all changes

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  2 files to transfer, 908 bytes of data

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  transferred 908 bytes in * seconds (*/sec) (glob)

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  searching for changes

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  no changes found

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  $ cd shallow

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  $ cat >> .hg/hgrc <<EOF

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  > [extensions]

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  > getflogheads=$TESTDIR/remotefilelog-getflogheads.py

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  > EOF

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Get heads of a remotefilelog

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  $ hg getflogheads x

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  2797809ca5e9c2f307d82b1345e832f655fb99a2

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  ca758b402ddc91e37e3113e1a97791b537e1b7bb

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Get heads of a non-existing remotefilelog

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  $ hg getflogheads y

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  EMPTY