lock: fixed race condition in trylock/testlock (issue3506) Suppose the following scenario: 1. Process A takes the lock (e.g. on commit). 2. Process B wants to grab the lock. Since lock file exists the exception is raised. In the catch block the testlock function is called. 3. Process A releases the lock. 4. Process B tries to read the lock file as a part of testlock function. This results in OSError (ENOENT) and since we're not inside the exception handler function this is propagated and aborts the whole operation. To fix this we now check in testlock function whether lock file actually exists and if not (i.e. if readlock fails) we just return.

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Mercurial

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=========

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Mercurial is a fast, easy to use, distributed revision control tool

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for software developers.

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Basic install:

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 $ make            # see install targets

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 $ make install    # do a system-wide install

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 $ hg debuginstall # sanity-check setup

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 $ hg              # see help

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Running without installing:

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 $ make local      # build for inplace usage

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 $ ./hg --version  # should show the latest version

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See http://mercurial.selenic.com/ for detailed installation

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instructions, platform-specific notes, and Mercurial user information.