Mercurial > hg
view contrib/mercurial.spec @ 27430:e240e914d226 stable
revlog: seek to end of file before writing (issue4943)
Revlogs were recently refactored to open file handles in "a+" and use a
persistent file handle for reading and writing. This drastically
reduced the number of file handles being opened.
Unfortunately, it appears that some versions of Solaris lose the file
offset when performing a write after the handle has been seeked.
The simplest workaround is to seek to EOF on files opened in a+ mode
before writing to them, which is what this patch does.
Ideally, this code would exist in the vfs layer. However, this would
require creating a proxy class for file objects in order to provide a
custom implementation of write(). This would add overhead. Since
revlogs are the only files we open in a+ mode, the one-off workaround
in revlog.py should be sufficient.
This patch appears to have little to no impact on performance on my
Linux machine.
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Thu, 17 Dec 2015 17:16:02 -0800 |
parents | 4b0fc75f9403 |
children | b927fe8bf0b9 |
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%global emacs_lispdir %{_datadir}/emacs/site-lisp %define withpython %{nil} %if "%{?withpython}" %global pythonver %{withpython} %global pythonname Python-%{withpython} %global docutilsname docutils-0.12 %global docutilsmd5 4622263b62c5c771c03502afa3157768 %global pythonhg python-hg %global hgpyprefix /opt/%{pythonhg} # byte compilation will fail on some some Python /test/ files %global _python_bytecompile_errors_terminate_build 0 %else %global pythonver %(python -c 'import sys;print ".".join(map(str, sys.version_info[:2]))') %endif Summary: A fast, lightweight Source Control Management system Name: mercurial Version: snapshot Release: 0 License: GPLv2+ Group: Development/Tools URL: https://mercurial-scm.org/ Source0: %{name}-%{version}-%{release}.tar.gz %if "%{?withpython}" Source1: %{pythonname}.tgz Source2: %{docutilsname}.tar.gz %endif BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root BuildRequires: make, gcc, gettext %if "%{?withpython}" BuildRequires: readline-devel, openssl-devel, ncurses-devel, zlib-devel, bzip2-devel %else BuildRequires: python >= 2.6, python-devel, python-docutils >= 0.5 Requires: python >= 2.6 %endif # The hgk extension uses the wish tcl interpreter, but we don't enforce it #Requires: tk %description Mercurial is a fast, lightweight source control management system designed for efficient handling of very large distributed projects. %prep %if "%{?withpython}" %setup -q -n mercurial-%{version}-%{release} -a1 -a2 # despite the comments in cgi.py, we do this to prevent rpmdeps from picking /usr/local/bin/python up sed -i '1c#! /usr/bin/env python' %{pythonname}/Lib/cgi.py %else %setup -q -n mercurial-%{version}-%{release} %endif %build %if "%{?withpython}" PYPATH=$PWD/%{pythonname} cd $PYPATH ./configure --prefix=%{hgpyprefix} make all %{?_smp_mflags} cd - cd %{docutilsname} LD_LIBRARY_PATH=$PYPATH $PYPATH/python setup.py build cd - # verify Python environment LD_LIBRARY_PATH=$PYPATH PYTHONPATH=$PWD/%{docutilsname} $PYPATH/python -c 'import sys, zlib, bz2, ssl, curses, readline' # set environment for make export PATH=$PYPATH:$PATH export LD_LIBRARY_PATH=$PYPATH export CFLAGS="-L $PYPATH" export PYTHONPATH=$PWD/%{docutilsname} %endif make all %install rm -rf $RPM_BUILD_ROOT %if "%{?withpython}" PYPATH=$PWD/%{pythonname} cd $PYPATH make install DESTDIR=$RPM_BUILD_ROOT # these .a are not necessary and they are readonly and strip fails - kill them! rm -f %{buildroot}%{hgpyprefix}/lib/{,python2.*/config}/libpython2.*.a cd - cd %{docutilsname} LD_LIBRARY_PATH=$PYPATH $PYPATH/python setup.py install --root="$RPM_BUILD_ROOT" cd - PATH=$PYPATH:$PATH LD_LIBRARY_PATH=$PYPATH make install DESTDIR=$RPM_BUILD_ROOT PREFIX=%{hgpyprefix} MANDIR=%{_mandir} mkdir -p $RPM_BUILD_ROOT%{_bindir} ( cd $RPM_BUILD_ROOT%{_bindir}/ && ln -s ../..%{hgpyprefix}/bin/hg . ) ( cd $RPM_BUILD_ROOT%{_bindir}/ && ln -s ../..%{hgpyprefix}/bin/python2.? %{pythonhg} ) %else make install DESTDIR=$RPM_BUILD_ROOT PREFIX=%{_prefix} MANDIR=%{_mandir} %endif install -m 755 contrib/hgk $RPM_BUILD_ROOT%{_bindir}/ install -m 755 contrib/hg-ssh $RPM_BUILD_ROOT%{_bindir}/ bash_completion_dir=$RPM_BUILD_ROOT%{_sysconfdir}/bash_completion.d mkdir -p $bash_completion_dir install -m 644 contrib/bash_completion $bash_completion_dir/mercurial.sh zsh_completion_dir=$RPM_BUILD_ROOT%{_datadir}/zsh/site-functions mkdir -p $zsh_completion_dir install -m 644 contrib/zsh_completion $zsh_completion_dir/_mercurial mkdir -p $RPM_BUILD_ROOT%{emacs_lispdir} install -m 644 contrib/mercurial.el $RPM_BUILD_ROOT%{emacs_lispdir}/ install -m 644 contrib/mq.el $RPM_BUILD_ROOT%{emacs_lispdir}/ mkdir -p $RPM_BUILD_ROOT/%{_sysconfdir}/mercurial/hgrc.d %clean rm -rf $RPM_BUILD_ROOT %files %defattr(-,root,root,-) %doc CONTRIBUTORS COPYING doc/README doc/hg*.txt doc/hg*.html *.cgi contrib/*.fcgi %doc %attr(644,root,root) %{_mandir}/man?/hg* %doc %attr(644,root,root) contrib/*.svg %dir %{_datadir}/zsh/ %dir %{_datadir}/zsh/site-functions/ %{_datadir}/zsh/site-functions/_mercurial %dir %{_datadir}/emacs/site-lisp/ %{_datadir}/emacs/site-lisp/mercurial.el %{_datadir}/emacs/site-lisp/mq.el %{_bindir}/hg %{_bindir}/hgk %{_bindir}/hg-ssh %dir %{_sysconfdir}/bash_completion.d/ %config(noreplace) %{_sysconfdir}/bash_completion.d/mercurial.sh %dir %{_sysconfdir}/mercurial %dir %{_sysconfdir}/mercurial/hgrc.d %if "%{?withpython}" %{_bindir}/%{pythonhg} %{hgpyprefix} %else %if "%{?pythonver}" != "2.4" %{_libdir}/python%{pythonver}/site-packages/%{name}-*-py%{pythonver}.egg-info %endif %{_libdir}/python%{pythonver}/site-packages/%{name} %{_libdir}/python%{pythonver}/site-packages/hgext %endif