rust-node: handling binary Node prefix
Parallel to the inner signatures of the nodetree functions in
revlog.c, we'll have to handle prefixes of `Node` in binary
form.
Another motivation is that it allows to convert from full Node
references to `NodePrefixRef` without copy. This is expected to
be by far the most common case in practice.
There's a slight complication due to the fact that we'll be sometimes
interested in prefixes with an odd number of hexadecimal digits,
which translates in binary form by a last byte in which only the
highest weight 4 bits are considered. This is totally transparent for
callers and could be revised once we have proper means to measure
performance.
The C implementation does the same, passing the length in nybbles as
function arguments. Because Rust byte slices already have a length, we carry
the even/odd informaton as a boolean, to avoid introducing logical
redundancies and the related potential inconsistency bugs.
There are a few candidates for inlining here, but we refrain from
such premature optimizations, letting the compiler decide.
Differential Revision: https://phab.mercurial-scm.org/D7790
#!/usr/bin/make -f
# Uncomment this to turn on verbose mode.
# export DH_VERBOSE=1
CPUS=$(shell cat /proc/cpuinfo | grep -E ^processor | wc -l)
export HGPYTHON3=1
export PYTHON=python3
%:
dh $@ --with python3
override_dh_auto_test:
http_proxy='' dh_auto_test -- TESTFLAGS="-j$(CPUS)"
override_dh_python3:
dh_python3 --shebang=/usr/bin/python3
override_dh_auto_clean:
$(MAKE) cleanbutpackages
$(MAKE) -C contrib/chg clean
override_dh_auto_build:
$(MAKE) all
$(MAKE) -C contrib/chg all
override_dh_auto_install:
python3 setup.py install --root "$(CURDIR)"/debian/mercurial --install-layout=deb
# chg
make -C contrib/chg \
DESTDIR="$(CURDIR)"/debian/mercurial \
PREFIX=/usr \
install
make install-doc PREFIX="$(CURDIR)"/debian/mercurial/usr
cp contrib/hg-ssh "$(CURDIR)"/debian/mercurial/usr/bin
mkdir -p "$(CURDIR)"/debian/mercurial/usr/share/mercurial
cp contrib/hgk "$(CURDIR)"/debian/mercurial/usr/share/mercurial
mkdir -p "$(CURDIR)"/debian/mercurial/etc/mercurial/hgrc.d/
cp contrib/packaging/debian/*.rc "$(CURDIR)"/debian/mercurial/etc/mercurial/hgrc.d/
# completions
mkdir -p "$(CURDIR)"/debian/mercurial/usr/share/bash-completion/completions
cp contrib/bash_completion "$(CURDIR)"/debian/mercurial/usr/share/bash-completion/completions/hg
mkdir -p "$(CURDIR)"/debian/mercurial/usr/share/zsh/vendor-completions
cp contrib/zsh_completion "$(CURDIR)"/debian/mercurial/usr/share/zsh/vendor-completions/_hg