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zstd: vendor python-zstandard 0.7.0...
zstd: vendor python-zstandard 0.7.0 Commit 3054ae3a66112970a091d3939fee32c2d0c1a23e from https://github.com/indygreg/python-zstandard is imported without modifications (other than removing unwanted files). The vendored zstd library within has been upgraded from 1.1.2 to 1.1.3. This version introduced new APIs for threads, thread pools, multi-threaded compression, and a new dictionary builder (COVER). These features are not yet used by python-zstandard (or Mercurial for that matter). However, that will likely change in the next python-zstandard release (and I think there are opportunities for Mercurial to take advantage of the multi-threaded APIs). Relevant to Mercurial, the CFFI bindings are now fully implemented. This means zstd should "just work" with PyPy (although I haven't tried). The python-zstandard test suite also runs all tests against both the C extension and CFFI bindings to ensure feature parity. There is also a "decompress_content_dict_chain()" API. This was derived from discussions with Yann Collet on list about alternate ways of encoding delta chains. The change most relevant to Mercurial is a performance enhancement in the simple decompression API to reuse a data structure across operations. This makes decompression of multiple inputs significantly faster. (This scenario occurs when reading revlog delta chains, for example.) Using python-zstandard's bench.py to measure the performance difference... On changelog chunks in the mozilla-unified repo: decompress discrete decompress() reuse zctx 1.262243 wall; 1.260000 CPU; 1.260000 user; 0.000000 sys 170.43 MB/s (best of 3) 0.949106 wall; 0.950000 CPU; 0.950000 user; 0.000000 sys 226.66 MB/s (best of 4) decompress discrete dict decompress() reuse zctx 0.692170 wall; 0.690000 CPU; 0.690000 user; 0.000000 sys 310.80 MB/s (best of 5) 0.437088 wall; 0.440000 CPU; 0.440000 user; 0.000000 sys 492.17 MB/s (best of 7) On manifest chunks in the mozilla-unified repo: decompress discrete decompress() reuse zctx 1.367284 wall; 1.370000 CPU; 1.370000 user; 0.000000 sys 274.01 MB/s (best of 3) 1.086831 wall; 1.080000 CPU; 1.080000 user; 0.000000 sys 344.72 MB/s (best of 3) decompress discrete dict decompress() reuse zctx 0.993272 wall; 0.990000 CPU; 0.990000 user; 0.000000 sys 377.19 MB/s (best of 3) 0.678651 wall; 0.680000 CPU; 0.680000 user; 0.000000 sys 552.06 MB/s (best of 5) That should make reads on zstd revlogs a bit faster ;) # no-check-commit
Gilles Moris - - Load All Authors

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r13515:26163257 1.8 stable
r30895:c32454d6 default
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tcsh_completion
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TK Soh
Add tcsh_completion to contrib
 r1156 #
# tcsh completion for Mercurial
#
# This file has been auto-generated by tcsh_completion_build.sh for
Gilles Moris
contrib: update tcsh_completion for Mercurial 1.8...
 r13515 # Mercurial Distributed SCM (version 1.7.5+157-8a220ae0b2ba)
TK Soh
Add tcsh_completion to contrib
 r1156 #
# Copyright (C) 2005 TK Soh.
#
# This is free software; you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free
# Software Foundation; either version 2 of the License, or (at your
Thomas Arendsen Hein
Cleanup of tabs and trailing spaces.
 r1308 # option) any later version.
TK Soh
Add tcsh_completion to contrib
 r1156 #
complete hg \
'n/--cwd/d/' 'n/-R/d/' 'n/--repository/d/' \
TK Soh
Regenerate tcsh_completion after bugfix in generator script
 r1158 'C/-/( -R --repository \
--cwd \
-y --noninteractive \
-q --quiet \
-v --verbose \
Gilles Moris
Update tcsh completion scripts with new commands and for new help output....
 r7766 --config \
TK Soh
Regenerate tcsh_completion after bugfix in generator script
 r1158 --debug \
Thomas Arendsen Hein
Generated new tcsh_completion with tcsh_completion_build.sh
 r1264 --debugger \
Gilles Moris
Update tcsh completion scripts with new commands and for new help output....
 r7766 --encoding \
--encodingmode \
TK Soh
Regenerate tcsh_completion after bugfix in generator script
 r1158 --traceback \
--time \
--profile \
--version \
-h --help)/' \
Gilles Moris
Update tcsh completion scripts with new commands and for new help output....
 r7766 'p/1/(add addremove annotate blame archive \
Gilles Moris
contrib: update tcsh_completion for Mercurial 1.8...
 r13515 backout bisect bookmarks branch branches \
bundle cat clone commit ci \
copy cp debugancestor debugbuilddag debugcheckstate \
debugcommands debugcomplete debugdag debugdata debugdate \
debugfsinfo debugignore debugindex debugindexdot debuginstall \
debugpushkey debugrebuildstate debugrename debugrevspec debugsetparents \
debugstate debugsub debugwalk diff export \
forget grep heads help identify \
id import patch incoming in \
init locate log history manifest \
merge outgoing out parents paths \
pull push recover remove rm \
rename move mv resolve revert \
rollback root serve showconfig debugconfig \
status st summary sum tag \
tags tip unbundle update up \
checkout co verify version)/'
TK Soh
Add tcsh_completion to contrib
 r1156