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rhg: Set second_ambiguous as needed in post-status fixup...
rhg: Set second_ambiguous as needed in post-status fixup This fixes an intermittent bug that manifested only in test-revert.t, and unfortunately not on CI. On a fast enough machine we could have: 1. A file is modified 2. `rhg status` writes an updated dirstate-v1 3. The same file is modified again … all within the same integer second. Because the dirstate-v1 file format does not store sub-second precision, step 2 must write the file’s mtime as "unknown" because of the possibility of step 3. However, most of the code now handles timestamps with nanosecond precision in order to take advantage of it in dirstate-v2. `second_ambiguous` must be set for timestamps that become ambiguous if sub-second precision is dropped (such as through serialization in dirstate-v1 format). Differential Revision: https://phab.mercurial-scm.org/D11889
Simon Sapin -
r49272:11218471 default
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Mercurial

Mercurial is a fast, easy to use, distributed revision control tool for software developers.

Basic install:

$ make            # see install targets
$ make install    # do a system-wide install
$ hg debuginstall # sanity-check setup
$ hg              # see help

Running without installing:

$ make local      # build for inplace usage
$ ./hg --version  # should show the latest version

See https://mercurial-scm.org/ for detailed installation instructions, platform-specific notes, and Mercurial user information.

Notes for packagers

Mercurial ships a copy of the python-zstandard sources. This is used to provide support for zstd compression and decompression functionality. The module is not intended to be replaced by the plain python-zstandard nor is it intended to use a system zstd library. Patches can result in hard to diagnose errors and are explicitly discouraged as unsupported configuration.