# Copyright 1999-2013 Gentoo Foundation # Distributed under the terms of the GNU General Public License v2 # $Header: /var/cvsroot/gentoo-x86/eclass/distutils-r1.eclass,v 1.91 2013/11/11 15:58:40 mgorny Exp $ # @ECLASS: distutils-r1 # @MAINTAINER: # Python team # @AUTHOR: # Author: Michał Górny # Based on the work of: Krzysztof Pawlik # @BLURB: A simple eclass to build Python packages using distutils. # @DESCRIPTION: # A simple eclass providing functions to build Python packages using # the distutils build system. It exports phase functions for all # the src_* phases. Each of the phases runs two pseudo-phases: # python_..._all() (e.g. python_prepare_all()) once in ${S}, then # python_...() (e.g. python_prepare()) for each implementation # (see: python_foreach_impl() in python-r1). # # In distutils-r1_src_prepare(), the 'all' function is run before # per-implementation ones (because it creates the implementations), # per-implementation functions are run in a random order. # # In remaining phase functions, the per-implementation functions are run # before the 'all' one, and they are ordered from the least to the most # preferred implementation (so that 'better' files overwrite 'worse' # ones). # # If the ebuild doesn't specify a particular pseudo-phase function, # the default one will be used (distutils-r1_...). Defaults are provided # for all per-implementation pseudo-phases, python_prepare_all() # and python_install_all(); whenever writing your own pseudo-phase # functions, you should consider calling the defaults (and especially # distutils-r1_python_prepare_all). # # Please note that distutils-r1 sets RDEPEND and DEPEND unconditionally # for you. # # Also, please note that distutils-r1 will always inherit python-r1 # as well. Thus, all the variables defined and documented there are # relevant to the packages using distutils-r1. # # For more information, please see the python-r1 Developer's Guide: # http://www.gentoo.org/proj/en/Python/python-r1/dev-guide.xml case "${EAPI:-0}" in 0|1|2|3) die "Unsupported EAPI=${EAPI:-0} (too old) for ${ECLASS}" ;; 4|5) ;; *) die "Unsupported EAPI=${EAPI} (unknown) for ${ECLASS}" ;; esac # @ECLASS-VARIABLE: DISTUTILS_OPTIONAL # @DEFAULT_UNSET # @DESCRIPTION: # If set to a non-null value, distutils part in the ebuild will # be considered optional. No dependencies will be added and no phase # functions will be exported. # # If you enable DISTUTILS_OPTIONAL, you have to set proper dependencies # for your package (using ${PYTHON_DEPS}) and to either call # distutils-r1 default phase functions or call the build system # manually. # @ECLASS-VARIABLE: DISTUTILS_SINGLE_IMPL # @DEFAULT_UNSET # @DESCRIPTION: # If set to a non-null value, the ebuild will support setting a single # Python implementation only. It will effectively replace the python-r1 # eclass inherit with python-single-r1. # # Note that inheriting python-single-r1 will cause pkg_setup() # to be exported. It must be run in order for the eclass functions # to function properly. if [[ ! ${_DISTUTILS_R1} ]]; then inherit eutils if [[ ! ${DISTUTILS_SINGLE_IMPL} ]]; then inherit multiprocessing python-r1 else inherit python-single-r1 fi fi if [[ ! ${DISTUTILS_OPTIONAL} ]]; then EXPORT_FUNCTIONS src_prepare src_configure src_compile src_test src_install fi if [[ ! ${_DISTUTILS_R1} ]]; then if [[ ! ${DISTUTILS_OPTIONAL} ]]; then RDEPEND=${PYTHON_DEPS} DEPEND=${PYTHON_DEPS} REQUIRED_USE=${PYTHON_REQUIRED_USE} fi # @ECLASS-VARIABLE: PATCHES # @DEFAULT_UNSET # @DESCRIPTION: # An array containing patches to be applied to the sources before # copying them. # # If unset, no custom patches will be applied. # # Please note, however, that at some point the eclass may apply # additional distutils patches/quirks independently of this variable. # # Example: # @CODE # PATCHES=( "${FILESDIR}"/${P}-make-gentoo-happy.patch ) # @CODE # @ECLASS-VARIABLE: DOCS # @DEFAULT_UNSET # @DESCRIPTION: # An array containing documents installed using dodoc. The files listed # there must exist in the directory from which # distutils-r1_python_install_all() is run (${S} by default). # # If unset, the function will instead look up files matching default # filename pattern list (from the Package Manager Specification), # and install those found. # # Example: # @CODE # DOCS=( NEWS README ) # @CODE # @ECLASS-VARIABLE: HTML_DOCS # @DEFAULT_UNSET # @DESCRIPTION: # An array containing documents installed using dohtml. The files # and directories listed there must exist in the directory from which # distutils-r1_python_install_all() is run (${S} by default). # # If unset, no HTML docs will be installed. # # Example: # @CODE # HTML_DOCS=( doc/html/. ) # @CODE # @ECLASS-VARIABLE: EXAMPLES # @DEFAULT_UNSET # @DESCRIPTION: # An array containing examples installed into 'examples' doc # subdirectory. The files and directories listed there must exist # in the directory from which distutils-r1_python_install_all() is run # (${S} by default). # # The 'examples' subdirectory will be marked not to be compressed # automatically. # # If unset, no examples will be installed. # # Example: # @CODE # EXAMPLES=( examples/. demos/. ) # @CODE # @ECLASS-VARIABLE: DISTUTILS_IN_SOURCE_BUILD # @DEFAULT_UNSET # @DESCRIPTION: # If set to a non-null value, in-source builds will be enabled. # If unset, the default is to use in-source builds when python_prepare() # is declared, and out-of-source builds otherwise. # # If in-source builds are used, the eclass will create a copy of package # sources for each Python implementation in python_prepare_all(), # and work on that copy afterwards. # # If out-of-source builds are used, the eclass will instead work # on the sources directly, prepending setup.py arguments with # 'build --build-base ${BUILD_DIR}' to enforce keeping & using built # files in the specific root. # @ECLASS-VARIABLE: DISTUTILS_NO_PARALLEL_BUILD # @DEFAULT_UNSET # @DESCRIPTION: # If set to a non-null value, the parallel build feature will # be disabled. # # When parallel builds are used, the implementation-specific sub-phases # for selected Python implementation will be run in parallel. This will # increase build efficiency with distutils which does not do parallel # builds. # # This variable can be used to disable the afore-mentioned feature # in case it causes issues with the package. # @ECLASS-VARIABLE: mydistutilsargs # @DEFAULT_UNSET # @DESCRIPTION: # An array containing options to be passed to setup.py. # # Example: # @CODE # python_configure_all() { # mydistutilsargs=( --enable-my-hidden-option ) # } # @CODE # @FUNCTION: esetup.py # @USAGE: [...] # @DESCRIPTION: # Run setup.py using currently selected Python interpreter # (if ${PYTHON} is set; fallback 'python' otherwise). # # setup.py will be passed the following, in order: # 1. ${mydistutilsargs[@]} # 2. additional arguments passed to the esetup.py function. # # This command dies on failure. esetup.py() { debug-print-function ${FUNCNAME} "${@}" set -- "${PYTHON:-python}" setup.py "${mydistutilsargs[@]}" "${@}" echo "${@}" >&2 "${@}" || die } # @FUNCTION: distutils_install_for_testing # @USAGE: [...] # @DESCRIPTION: # Install the package into a temporary location for running tests. # Update PYTHONPATH appropriately and set TEST_DIR to the test # installation root. The Python packages will be installed in 'lib' # subdir, and scripts in 'scripts' subdir (like in BUILD_DIR). # # Please note that this function should be only used if package uses # namespaces (and therefore proper install needs to be done to enforce # PYTHONPATH) or tests rely on the results of install command. # For most of the packages, tests built in BUILD_DIR are good enough. distutils_install_for_testing() { debug-print-function ${FUNCNAME} "${@}" # A few notes: # 1) because of namespaces, we can't use 'install --root', # 2) 'install --home' is terribly broken on pypy, so we need # to override --install-lib and --install-scripts, # 3) non-root 'install' complains about PYTHONPATH and missing dirs, # so we need to set it properly and mkdir them, # 4) it runs a bunch of commands which write random files to cwd, # in order to avoid that, we need to run them ourselves to pass # alternate build paths, # 5) 'install' needs to go before 'bdist_egg' or the latter would # re-set install paths. TEST_DIR=${BUILD_DIR}/test local bindir=${TEST_DIR}/scripts local libdir=${TEST_DIR}/lib PYTHONPATH=${libdir}:${PYTHONPATH} local add_args=( install --home="${TEST_DIR}" --install-lib="${libdir}" --install-scripts="${bindir}" ) if "${PYTHON:-python}" setup.py --help bdist_egg &>/dev/null; then add_args+=( bdist_egg --dist-dir="${TEST_DIR}" ) fi mkdir -p "${libdir}" || die esetup.py "${add_args[@]}" "${@}" } # @FUNCTION: _distutils-r1_disable_ez_setup # @INTERNAL # @DESCRIPTION: # Stub out ez_setup.py and distribute_setup.py to prevent packages # from trying to download a local copy of setuptools. _distutils-r1_disable_ez_setup() { local stub="def use_setuptools(*args, **kwargs): pass" if [[ -f ez_setup.py ]]; then echo "${stub}" > ez_setup.py || die fi if [[ -f distribute_setup.py ]]; then echo "${stub}" > distribute_setup.py || die fi } # @FUNCTION: distutils-r1_python_prepare_all # @DESCRIPTION: # The default python_prepare_all(). It applies the patches from PATCHES # array, then user patches and finally calls python_copy_sources to # create copies of resulting sources for each Python implementation. # # At some point in the future, it may also apply eclass-specific # distutils patches and/or quirks. distutils-r1_python_prepare_all() { debug-print-function ${FUNCNAME} "${@}" [[ ${PATCHES} ]] && epatch "${PATCHES[@]}" epatch_user # by default, use in-source build if python_prepare() is used if [[ ! ${DISTUTILS_IN_SOURCE_BUILD+1} ]]; then if declare -f python_prepare >/dev/null; then DISTUTILS_IN_SOURCE_BUILD=1 fi fi _distutils-r1_disable_ez_setup if [[ ${DISTUTILS_IN_SOURCE_BUILD} && ! ${DISTUTILS_SINGLE_IMPL} ]] then # create source copies for each implementation python_copy_sources fi _DISTUTILS_DEFAULT_CALLED=1 } # @FUNCTION: distutils-r1_python_prepare # @DESCRIPTION: # The default python_prepare(). A no-op. distutils-r1_python_prepare() { debug-print-function ${FUNCNAME} "${@}" : } # @FUNCTION: distutils-r1_python_configure # @DESCRIPTION: # The default python_configure(). A no-op. distutils-r1_python_configure() { debug-print-function ${FUNCNAME} "${@}" : } # @FUNCTION: _distutils-r1_create_setup_cfg # @INTERNAL # @DESCRIPTION: # Create implementation-specific configuration file for distutils, # setting proper build-dir paths. _distutils-r1_create_setup_cfg() { cat > "${HOME}"/.pydistutils.cfg <<-_EOF_ || die [build] build-base = ${BUILD_DIR} # using a single directory for them helps us export # ${PYTHONPATH} and ebuilds find the sources independently # of whether the package installs extensions or not # # note: due to some packages (wxpython) relying on separate # platlib & purelib dirs, we do not set --build-lib (which # can not be overriden with --build-*lib) build-platlib = %(build-base)s/lib build-purelib = %(build-base)s/lib # make the ebuild writer lives easier build-scripts = %(build-base)s/scripts [egg_info] egg-base = ${BUILD_DIR} _EOF_ } # @FUNCTION: _distutils-r1_copy_egg_info # @INTERNAL # @DESCRIPTION: # Copy egg-info files to the ${BUILD_DIR} (that's going to become # egg-base in esetup.py). This way, we respect whatever's in upstream # egg-info. _distutils-r1_copy_egg_info() { mkdir -p "${BUILD_DIR}" || die # stupid freebsd can't do 'cp -t ${BUILD_DIR} {} +' find -name '*.egg-info' -type d -exec cp -pr {} "${BUILD_DIR}"/ ';' || die } # @FUNCTION: distutils-r1_python_compile # @USAGE: [additional-args...] # @DESCRIPTION: # The default python_compile(). Runs 'esetup.py build'. Any parameters # passed to this function will be appended to setup.py invocation, # i.e. passed as options to the 'build' command. distutils-r1_python_compile() { debug-print-function ${FUNCNAME} "${@}" _distutils-r1_create_setup_cfg _distutils-r1_copy_egg_info esetup.py build "${@}" } # @FUNCTION: distutils-r1_python_test # @DESCRIPTION: # The default python_test(). A no-op. distutils-r1_python_test() { debug-print-function ${FUNCNAME} "${@}" : } # @FUNCTION: _distutils-r1_wrap_scripts # @USAGE: # @INTERNAL # @DESCRIPTION: # Moves and wraps all installed scripts/executables as necessary. _distutils-r1_wrap_scripts() { debug-print-function ${FUNCNAME} "${@}" [[ ${#} -eq 2 ]] || die "usage: ${FUNCNAME} " local path=${1} local bindir=${2} if ! _python_want_python_exec2; then local PYTHON_SCRIPTDIR=${bindir} fi local f python_files=() non_python_files=() if [[ -d ${path}${PYTHON_SCRIPTDIR} ]]; then for f in "${path}${PYTHON_SCRIPTDIR}"/*; do [[ -d ${f} ]] && die "Unexpected directory: ${f}" debug-print "${FUNCNAME}: found executable at ${f#${path}/}" local shebang read -r shebang < "${f}" if [[ ${shebang} == '#!'*${EPYTHON}* ]]; then debug-print "${FUNCNAME}: matching shebang: ${shebang}" python_files+=( "${f}" ) elif _python_want_python_exec2; then debug-print "${FUNCNAME}: non-matching shebang: ${shebang}" non_python_files+=( "${f}" ) fi mkdir -p "${path}${bindir}" || die done for f in "${python_files[@]}"; do local basename=${f##*/} if ! _python_want_python_exec2; then local newf=${f%/*}/${basename}-${EPYTHON} debug-print "${FUNCNAME}: renaming ${f#${path}/} to ${newf#${path}/}" mv "${f}" "${newf}" || die fi debug-print "${FUNCNAME}: installing wrapper at ${bindir}/${basename}" _python_ln_rel "${path}${EPREFIX}"$(_python_get_wrapper_path) \ "${path}${bindir}/${basename}" || die done # (non-empty only with python-exec:2) for f in "${non_python_files[@]}"; do local basename=${f##*/} debug-print "${FUNCNAME}: moving ${f#${path}/} to ${bindir}/${basename}" mv "${f}" "${path}${bindir}/${basename}" || die done fi } # @FUNCTION: distutils-r1_python_install # @USAGE: [additional-args...] # @DESCRIPTION: # The default python_install(). Runs 'esetup.py install', appending # the optimization flags. Then renames the installed scripts. # Any parameters passed to this function will be appended # to the setup.py invocation (i.e. as options to the 'install' command). distutils-r1_python_install() { debug-print-function ${FUNCNAME} "${@}" local args=( "${@}" ) local flags case "${EPYTHON}" in jython*) flags=(--compile);; *) flags=(--compile -O2);; esac debug-print "${FUNCNAME}: [${EPYTHON}] flags: ${flags}" # enable compilation for the install phase. local -x PYTHONDONTWRITEBYTECODE # python likes to compile any module it sees, which triggers sandbox # failures if some packages haven't compiled their modules yet. addpredict "$(python_get_sitedir)" addpredict /usr/lib/portage/pym local root=${D}/_${EPYTHON} [[ ${DISTUTILS_SINGLE_IMPL} ]] && root=${D} flags+=( --root="${root}" ) if [[ ! ${DISTUTILS_SINGLE_IMPL} ]]; then # user may override --install-scripts # note: this is poor but distutils argv parsing is dumb local mydistutilsargs=( "${mydistutilsargs[@]}" ) local scriptdir=${EPREFIX}/usr/bin # construct a list of mydistutilsargs[0] args[0] args[1]... local arg arg_vars [[ ${mydistutilsargs[@]} ]] && eval arg_vars+=( 'mydistutilsargs['{0..$(( ${#mydistutilsargs[@]} - 1 ))}']' ) [[ ${args[@]} ]] && eval arg_vars+=( 'args['{0..$(( ${#args[@]} - 1 ))}']' ) set -- "${arg_vars[@]}" while [[ ${@} ]]; do local arg_var=${1} shift local a=${!arg_var} case "${a}" in --install-scripts=*) scriptdir=${a#--install-scripts=} if _python_want_python_exec2; then unset "${arg_var}" fi ;; --install-scripts) scriptdir=${!1} if _python_want_python_exec2; then unset "${arg_var}" "${1}" fi shift ;; esac done if _python_want_python_exec2; then local PYTHON_SCRIPTDIR python_export PYTHON_SCRIPTDIR flags+=( --install-scripts="${PYTHON_SCRIPTDIR}" ) fi fi esetup.py install "${flags[@]}" "${args[@]}" if [[ -d ${root}$(python_get_sitedir)/tests ]]; then die "Package installs 'tests' package, file collisions likely." fi if [[ ! ${DISTUTILS_SINGLE_IMPL} ]]; then _distutils-r1_wrap_scripts "${root}" "${scriptdir}" multibuild_merge_root "${root}" "${D}" fi } # @FUNCTION: distutils-r1_python_install_all # @DESCRIPTION: # The default python_install_all(). It installs the documentation. distutils-r1_python_install_all() { debug-print-function ${FUNCNAME} "${@}" einstalldocs if declare -p EXAMPLES &>/dev/null; then local INSDESTTREE=/usr/share/doc/${PF}/examples doins -r "${EXAMPLES[@]}" docompress -x "${INSDESTTREE}" fi _DISTUTILS_DEFAULT_CALLED=1 } # @FUNCTION: distutils-r1_run_phase # @USAGE: [...] # @INTERNAL # @DESCRIPTION: # Run the given command. # # If out-of-source builds are used, the phase function is run in source # directory, with BUILD_DIR pointing at the build directory # and PYTHONPATH having an entry for the module build directory. # # If in-source builds are used, the command is executed in the directory # holding the per-implementation copy of sources. BUILD_DIR points # to the 'build' subdirectory. distutils-r1_run_phase() { debug-print-function ${FUNCNAME} "${@}" if [[ ${DISTUTILS_IN_SOURCE_BUILD} ]]; then if [[ ! ${DISTUTILS_SINGLE_IMPL} ]]; then pushd "${BUILD_DIR}" >/dev/null || die fi local BUILD_DIR=${BUILD_DIR}/build fi local -x PYTHONPATH="${BUILD_DIR}/lib:${PYTHONPATH}" if [[ ! ${DISTUTILS_SINGLE_IMPL} ]]; then local -x TMPDIR=${T}/${EPYTHON} local -x HOME=${TMPDIR}/home mkdir -p "${TMPDIR}" "${HOME}" || die fi "${@}" if [[ ${DISTUTILS_IN_SOURCE_BUILD} && ! ${DISTUTILS_SINGLE_IMPL} ]] then popd >/dev/null || die fi } # @FUNCTION: _distutils-r1_run_common_phase # @USAGE: [...] # @INTERNAL # @DESCRIPTION: # Run the given command, restoring the best-implementation state. # # If in-source build is used, the command will be run in the copy # of sources made for the best Python interpreter. _distutils-r1_run_common_phase() { local DISTUTILS_ORIG_BUILD_DIR=${BUILD_DIR} if [[ ! ${DISTUTILS_SINGLE_IMPL} ]]; then local MULTIBUILD_VARIANTS _python_obtain_impls multibuild_for_best_variant _python_multibuild_wrapper \ distutils-r1_run_phase "${@}" else # semi-hack, be careful. _distutils-r1_run_foreach_impl "${@}" fi } # @FUNCTION: _distutils-r1_run_foreach_impl # @INTERNAL # @DESCRIPTION: # Run the given phase for each implementation if multiple implementations # are enabled, once otherwise. _distutils-r1_run_foreach_impl() { debug-print-function ${FUNCNAME} "${@}" set -- distutils-r1_run_phase "${@}" if [[ ! ${DISTUTILS_SINGLE_IMPL} ]]; then if [[ ${DISTUTILS_NO_PARALLEL_BUILD} || ${DISTUTILS_SINGLE_IMPL} ]] then python_foreach_impl "${@}" else python_parallel_foreach_impl "${@}" fi else if [[ ! ${EPYTHON} ]]; then die "EPYTHON unset, python-single-r1_pkg_setup not called?!" fi local BUILD_DIR=${BUILD_DIR:-${S}} BUILD_DIR=${BUILD_DIR%%/}_${EPYTHON} "${@}" fi } distutils-r1_src_prepare() { debug-print-function ${FUNCNAME} "${@}" local _DISTUTILS_DEFAULT_CALLED # common preparations if declare -f python_prepare_all >/dev/null; then python_prepare_all else distutils-r1_python_prepare_all fi if [[ ! ${_DISTUTILS_DEFAULT_CALLED} ]]; then eqawarn "QA warning: python_prepare_all() didn't call distutils-r1_python_prepare_all" fi if declare -f python_prepare >/dev/null; then _distutils-r1_run_foreach_impl python_prepare fi } distutils-r1_src_configure() { if declare -f python_configure >/dev/null; then _distutils-r1_run_foreach_impl python_configure fi if declare -f python_configure_all >/dev/null; then _distutils-r1_run_common_phase python_configure_all fi } distutils-r1_src_compile() { debug-print-function ${FUNCNAME} "${@}" if declare -f python_compile >/dev/null; then _distutils-r1_run_foreach_impl python_compile else _distutils-r1_run_foreach_impl distutils-r1_python_compile fi if declare -f python_compile_all >/dev/null; then _distutils-r1_run_common_phase python_compile_all fi } distutils-r1_src_test() { debug-print-function ${FUNCNAME} "${@}" if declare -f python_test >/dev/null; then _distutils-r1_run_foreach_impl python_test fi if declare -f python_test_all >/dev/null; then _distutils-r1_run_common_phase python_test_all fi } distutils-r1_src_install() { debug-print-function ${FUNCNAME} "${@}" if declare -f python_install >/dev/null; then _distutils-r1_run_foreach_impl python_install else _distutils-r1_run_foreach_impl distutils-r1_python_install fi local _DISTUTILS_DEFAULT_CALLED if declare -f python_install_all >/dev/null; then _distutils-r1_run_common_phase python_install_all else _distutils-r1_run_common_phase distutils-r1_python_install_all fi if [[ ! ${_DISTUTILS_DEFAULT_CALLED} ]]; then eqawarn "QA warning: python_install_all() didn't call distutils-r1_python_install_all" fi } _DISTUTILS_R1=1 fi