We try to keep the commit messages short: *5) Follow the format of commit messages. The three important bits are (a) be clear and explicit in the commit message and (b) include the link to the review and © use 72 character columns. See support/apply-review.sh for committing someone else’s code (it will construct a commit message that you’ll still need to edit because it pulls in all of the ‘Description’ which might just be ‘See summary.’ which can be omitted). Note that we don’t always have a 50 character or less summary because that restriction tends to cause people to write poorly.*
http://mesos.apache.org/documentation/latest/committers-guide/ Check out the commit log to see how this commit message is much longer than the others: * 743bb59 (HEAD, apache/master, master) Add --enable-debug and --enable-optimize flag for controlling building debug and optimized verisons of libprocess * 3fc81ce Correct include of linux/ns.hpp in isolator tests. * fa44b0a Use pid namespace to destroy container when available. * 823b992 Correctly recover pid in Linux launcher. * 7b196d2 Pid namespace isolator for the MesosContainerizer. * 691510a Remove Linux namespace functions from stout. * 0342113 Add ns::pid::destroy() to destroy a pid namespace. * 3650573 Add getns() for namespaces. * 57447a7 Move Linux namespace functions into linux/. * 2b8ad0b Include changes to isolation flag when creating Mesos containerizer. * 26824f8 Add Groupon and LIFX to PoweredByMesos documentation. * b2d8df7 Added support for both 1.8 and earlier versions of svn library. * 17ecc0c Added support for module-specific command-line parameters. * 1ff259e Added --isolation flag for tests. * 360e432 Add Artirix to PoweredByMesos list. * f511395 Introduce a shared filesytem isolator. * c18a50a Remove /proc and /sys remounts from port_mapping isolator. * 47fa5a1 Serialize isolator prepare and cleanup (reversed). * 8e6e36a Pass executor directory to Isolator::prepare(). * b493875 Adds Localsensor to PoweredByMesos documentation. * fc67600 Fixed line wrap in state/log.cpp. * d418c17 Added --with-apr and --with-svn to Mesos configure. * 7a1020e Added --with-apr and --with-svn to libprocess configure. * 6a778df Updated svn::diff/patch to use newer versions of functions. * fc6f59e Ensured post-reviews.py added newline between subject and body. * 33e625f Added DIFF to the replicated log state storage implementation. * 3b3d60f Added functionality to create SVN based diffs of arbitrary strings. * 61ce00f Added Java replicated log implementation of State. * 1f66bb2 Adds Wizcorp to PoweredByMesos page. * 4bbf727 Reordered functions in type_utils and added an equal comparator for Volume. * 1beacb8 Added documentation for egress rate limit control. * 6ffe580 Added a check in routing library due to a bug in libnl. * b4528ce PortMappingIsolator: Swap TX/RX in statistic collection in usage * 6a045e9 Introduced a FutureResult action. * d9381b0 Fixed a spelling mistake. * 12e0674 Mark running tasks killed during framework shutdown. On Tue, Oct 28, 2014 at 2:30 PM, <tstcl...@apache.org> wrote: > Repository: mesos > Updated Branches: > refs/heads/master 3fc81ce92 -> 743bb5941 > > > Add --enable-debug and --enable-optimize flag for controlling building > debug and optimized verisons of libprocess > > Reworks buiding mesos in a "debug" vs. a "release" configuration. By > default, mesos is built in a developer-centric setup (No optimizations, > minimal debug info), in order to maximize developer productivity > > None: '-O0 -g1' > --enable-optimize == '-O2' > --enable-debug == '-g' > --enable-optimize --enable-debug == '-O2 -g' > > If a user / developer passes CXXFLAGS or CFLAGS manually, then they are > not changed / touched at all. This is important so that Mesos is a good > citizen when being built for various distributions (As well as making it so > specialized one-off groupings of flags are feasible to use). > > Adds two defines for accessing what mode things are being built in: > 'DEBUG' and 'OPTIMIZE' which can be hooked into later to enable extra > logging and the like. For release builds we may want to set 'NDEBUG' which > removes assert()'s, but that is a seperate discussion. > > Review: https://reviews.apache.org/r/27252 > > > Project: http://git-wip-us.apache.org/repos/asf/mesos/repo > Commit: http://git-wip-us.apache.org/repos/asf/mesos/commit/743bb594 > Tree: http://git-wip-us.apache.org/repos/asf/mesos/tree/743bb594 > Diff: http://git-wip-us.apache.org/repos/asf/mesos/diff/743bb594 > > Branch: refs/heads/master > Commit: 743bb5941dd1b3549c76757d939a405ccaa0f279 > Parents: 3fc81ce > Author: Cody Maloney <c...@mesosphere.io> > Authored: Tue Oct 28 15:55:40 2014 -0500 > Committer: Timothy St. Clair <tstcl...@redhat.com> > Committed: Tue Oct 28 16:30:08 2014 -0500 > > ---------------------------------------------------------------------- > 3rdparty/libprocess/configure.ac | 47 +++++++++++++++++++++++------------ > 1 file changed, 31 insertions(+), 16 deletions(-) > ---------------------------------------------------------------------- > > > > http://git-wip-us.apache.org/repos/asf/mesos/blob/743bb594/3rdparty/libprocess/configure.ac > ---------------------------------------------------------------------- > diff --git a/3rdparty/libprocess/configure.ac b/3rdparty/libprocess/ > configure.ac > index ec4d5a5..18eb681 100644 > --- a/3rdparty/libprocess/configure.ac > +++ b/3rdparty/libprocess/configure.ac > @@ -28,14 +28,6 @@ LT_INIT > LT_LANG([C++]) > LT_OUTPUT > > -# The default CFLAGS/CXXFLAGS from autoconf when using gcc usually > -# includes "-O2". These really slow down compiling our tests, so we > -# turn them off and enable them (where desired) directly in the > -# Makefile. Note that this should not have an impact on users setting > -# CFLAGS/CXXFLAGS directly at configure time, or when running make. > -AS_IF([test "x${ac_cv_env_CFLAGS_set}" = "x"], [CFLAGS="-g"]) > -AS_IF([test "x${ac_cv_env_CXXFLAGS_set}" = "x"], [CXXFLAGS="-g"]) > - > # Save the configure arguments so we can pass them to any third-party > # libraries that we might run configure on (see > # 3rdparty/Makefile.am). One downside of our strategy for shipping > @@ -56,10 +48,17 @@ AC_ARG_ENABLE([install], > [install libprocess]), > [AC_MSG_ERROR([libprocess can not currently be installed])]) > > +AC_ARG_ENABLE([debug], > + AS_HELP_STRING([--enable-debug], > + [enable debugging. If CFLAGS/CXXFLAGS are > set, this > + option won't change them default: no]), > + [enable_debug=yes], []) > + > AC_ARG_ENABLE([optimize], > - AS_HELP_STRING([--disable-optimize], > - [don't try to compile with optimizations]), > - [], [enable_optimize=yes]) > + AS_HELP_STRING([--enable-optimize], > + [enable optimizations. If CFLAGS/CXXFLAGS > are set, > + this option won't change them default: no]), > + [enable_optimize=yes], []) > > AC_ARG_ENABLE([perftools], > AS_HELP_STRING([--enable-perftools], > @@ -525,14 +524,30 @@ AC_SUBST([PROTOBUF_JAR]) > AC_PROG_CXX([g++]) > AC_PROG_CC([gcc]) > > -# Check if we should try and enable optimizations. > +# Check if we should enable debugging, optimization. Note we only > +# update CFLAGS and CXXFLAGS if none are provided. > +AM_CONDITIONAL([DEBUG], [test x"$enable_debug" = "xyes"]) > +AM_CONDITIONAL([OPTIMIZE], [test x"$enable_optimize" = "xyes"]) > + > + > +debug_flags="-g1" > +if test "x$enable_debug" = "xyes"; then > + debug_flags="-g" > +elif test "x$enable_optimize" = "xyes"; then > + debug_flags="" > +fi > + > if test "x$enable_optimize" = "xyes"; then > - # For now, we only turn on optimizations for gcc. > - if test "x$GCC" = "xyes"; then > - CXXFLAGS="$CXXFLAGS -g2 -O2" > - fi > + optimize_flags="-O2" > +else > + optimize_flags="-O0" > fi > > +AS_IF([test "x${ac_cv_env_CFLAGS_set}" = "x"], > + [CFLAGS="$debug_flags $optimize_flags"]) > +AS_IF([test "x${ac_cv_env_CXXFLAGS_set}" = "x"], > + [CXXFLAGS="$debug_flags $optimize_flags"]) > + > > # Check if clang was provided instead. > AC_MSG_CHECKING([if compiling with clang]) > >
