tests/test-empty-group.t
author Manuel Jacob <me@manueljacob.de>
Mon, 11 Jul 2022 01:51:20 +0200
branchstable
changeset 49378 094a5fa3cf52
parent 34661 eb586ed5d8ce
permissions -rw-r--r--
procutil: make stream detection in make_line_buffered more correct and strict In make_line_buffered(), we don’t want to wrap the stream if we know that lines get flushed to the underlying raw stream already. Previously, the heuristic was too optimistic. It assumed that any stream which is not an instance of io.BufferedIOBase doesn’t need wrapping. However, there are buffered streams that aren’t instances of io.BufferedIOBase, like Mercurial’s own winstdout. The new logic is different in two ways: First, only for the check, if unwraps any combination of WriteAllWrapper and winstdout. Second, it skips wrapping the stream only if it is an instance of io.RawIOBase (or already wrapped). If it is an instance of io.BufferedIOBase, it gets wrapped. In any other case, the function raises an exception. This ensures that, if an unknown stream is passed or we add another wrapper in the future, we don’t wrap the stream if it’s already line buffered or not wrap the stream if it’s not line buffered. In fact, this was already helpful during development of this change. Without it, I possibly would have forgot that WriteAllWrapper needs to be ignored for the check, leading to unnecessary wrapping if stdout is unbuffered. The alternative would have been to always wrap unknown streams. However, I don’t think that anyone would benefit from being less strict. We can expect streams from the standard library to be subclassing either io.RawIOBase or io.BufferedIOBase, so running Mercurial in the standard way should not regress by this change. Py2exe might replace sys.stdout and sys.stderr, but that currently breaks Mercurial anyway and also these streams don’t claim to be interactive, so this function is not called for them.
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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#  A          B
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#
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#  3  4       3
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#  |\/|       |\
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#  |/\|       | \
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#  1  2       1  2
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#  \ /        \ /
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#   0          0
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#
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# if the result of the merge of 1 and 2
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# is the same in 3 and 4, no new manifest
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# will be created and the manifest group
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# will be empty during the pull
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#
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# (plus we test a failure where outgoing
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# wrongly reported the number of csets)
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  $ hg init a
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  $ cd a
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  $ touch init
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  $ hg ci -A -m 0
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  adding init
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  $ touch x y
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  $ hg ci -A -m 1
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  adding x
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  adding y
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  $ hg update 0
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  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
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  $ touch x y
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  $ hg ci -A -m 2
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  adding x
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  adding y
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  created new head
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  $ hg merge 1
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  (branch merge, don't forget to commit)
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  $ hg ci -A -m m1
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  $ hg update -C 1
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  $ hg merge 2
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  (branch merge, don't forget to commit)
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  $ hg ci -A -m m2
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  created new head
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  $ cd ..
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  $ hg clone -r 3 a b
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  added 4 changesets with 3 changes to 3 files
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  updating to branch default
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  $ hg clone -r 4 a c
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  added 4 changesets with 3 changes to 3 files
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  updating to branch default
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  $ hg -R a outgoing b
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  comparing with b
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  searching for changes
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  changeset:   4:1ec3c74fc0e0
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  tag:         tip
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  parent:      1:79f9e10cd04e
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  parent:      2:8e1bb01c1a24
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  user:        test
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  date:        Thu Jan 01 00:00:00 1970 +0000
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  summary:     m2
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  $ hg -R a outgoing c
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  comparing with c
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  searching for changes
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  changeset:   3:d15a0c284984
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  user:        test
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  date:        Thu Jan 01 00:00:00 1970 +0000
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  summary:     m1
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  $ hg -R b outgoing c
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  comparing with c
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  searching for changes
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  tag:         tip
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  parent:      2:8e1bb01c1a24
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  user:        test
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  date:        Thu Jan 01 00:00:00 1970 +0000
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  summary:     m1
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  $ hg -R c outgoing b
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  comparing with b
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  searching for changes
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  changeset:   3:1ec3c74fc0e0
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  tag:         tip
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  parent:      1:79f9e10cd04e
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  parent:      2:8e1bb01c1a24
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  user:        test
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  date:        Thu Jan 01 00:00:00 1970 +0000
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  summary:     m2
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  $ hg -R b pull a
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  pulling from a
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  searching for changes
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  adding changesets
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  adding manifests
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  adding file changes
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  added 1 changesets with 0 changes to 0 files (+1 heads)
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  new changesets 1ec3c74fc0e0
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  (run 'hg heads' to see heads, 'hg merge' to merge)
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  $ hg -R c pull a
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  pulling from a
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  searching for changes
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  adding changesets
fb0c6373ec36 tests: unify test-empty-group
Adrian Buehlmann <adrian@cadifra.com>
parents: 12156
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   127
  adding manifests
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Adrian Buehlmann <adrian@cadifra.com>
parents: 12156
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   128
  adding file changes
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Adrian Buehlmann <adrian@cadifra.com>
parents: 12156
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   129
  added 1 changesets with 0 changes to 0 files (+1 heads)
34661
eb586ed5d8ce transaction-summary: show the range of new revisions upon pull/unbundle (BC)
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 14162
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   130
  new changesets d15a0c284984
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fb0c6373ec36 tests: unify test-empty-group
Adrian Buehlmann <adrian@cadifra.com>
parents: 12156
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   131
  (run 'hg heads' to see heads, 'hg merge' to merge)