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revlog: Extract low-level random-access file read caching logic...
revlog: Extract low-level random-access file read caching logic The `revlog` class does many things, among which fulfilling requests for arbitrary byte slices from the revlog "data file" by reading a larger chunk and caching it in memory, in order to reduce the number of system calls. This extracts that logic into a new class, so that it may later also be used for the side-data file (with another instance of that class). The copyright notice of the new file does not include a date or author name since such information tend not to be kept up-to-date: https://www.linuxfoundation.org/en/blog/copyright-notices-in-open-source-software-projects/ Differential Revision: https://phab.mercurial-scm.org/D10878
Simon Sapin -
r48218:e0a314bc 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.