572 lines
19 KiB
Bash
572 lines
19 KiB
Bash
#!/bin/bash
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#
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# **inc/python** - Python-related functions
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#
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# Support for pip/setuptools interfaces and virtual environments
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#
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# External functions used:
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# - GetOSVersion
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# - is_fedora
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# - is_suse
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# - safe_chown
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# Save trace setting
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INC_PY_TRACE=$(set +o | grep xtrace)
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set +o xtrace
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# Global Config Variables
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# PROJECT_VENV contains the name of the virtual environment for each
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# project. A null value installs to the system Python directories.
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declare -A -g PROJECT_VENV
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# Python Functions
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# ================
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# Get the path to the pip command.
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# get_pip_command
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function get_pip_command {
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local version="$1"
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# NOTE(dhellmann): I don't know if we actually get a pip3.4-python
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# under any circumstances.
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which pip${version} || which pip${version}-python
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if [ $? -ne 0 ]; then
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die $LINENO "Unable to find pip${version}; cannot continue"
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fi
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}
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# Get the path to the directory where python executables are installed.
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# get_python_exec_prefix
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function get_python_exec_prefix {
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local xtrace
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xtrace=$(set +o | grep xtrace)
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set +o xtrace
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if [[ -z "$os_PACKAGE" ]]; then
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GetOSVersion
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fi
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$xtrace
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if is_fedora || is_suse; then
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echo "/usr/bin"
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else
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echo "/usr/local/bin"
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fi
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}
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# Wrapper for ``pip install`` that only installs versions of libraries
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# from the global-requirements specification.
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#
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# Uses globals ``REQUIREMENTS_DIR``
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#
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# pip_install_gr packagename
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function pip_install_gr {
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local name=$1
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local clean_name
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clean_name=$(get_from_global_requirements $name)
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pip_install $clean_name
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}
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# Wrapper for ``pip install`` that only installs versions of libraries
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# from the global-requirements specification with extras.
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#
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# Uses globals ``REQUIREMENTS_DIR``
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#
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# pip_install_gr_extras packagename extra1,extra2,...
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function pip_install_gr_extras {
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local name=$1
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local extras=$2
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local clean_name
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clean_name=$(get_from_global_requirements $name)
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pip_install $clean_name[$extras]
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}
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# Determine the python versions supported by a package
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function get_python_versions_for_package {
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local name=$1
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cd $name && python setup.py --classifiers \
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| grep 'Language' | cut -f5 -d: | grep '\.' | tr '\n' ' '
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}
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# Check for python3 classifier in local directory
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function check_python3_support_for_package_local {
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local name=$1
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cd $name
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set +e
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classifier=$(python setup.py --classifiers \
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| grep 'Programming Language :: Python :: 3$')
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set -e
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echo $classifier
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}
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# Check for python3 classifier on pypi
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function check_python3_support_for_package_remote {
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local name=$1
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set +e
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classifier=$(curl -s -L "https://pypi.python.org/pypi/$name/json" \
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| grep '"Programming Language :: Python :: 3"')
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set -e
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echo $classifier
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}
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# python3_enabled_for() checks if the service(s) specified as arguments are
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# enabled by the user in ``ENABLED_PYTHON3_PACKAGES``.
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#
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# Multiple services specified as arguments are ``OR``'ed together; the test
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# is a short-circuit boolean, i.e it returns on the first match.
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#
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# Uses global ``ENABLED_PYTHON3_PACKAGES``
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# python3_enabled_for dir [dir ...]
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function python3_enabled_for {
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local xtrace
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xtrace=$(set +o | grep xtrace)
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set +o xtrace
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local enabled=1
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local dirs=$@
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local dir
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for dir in ${dirs}; do
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[[ ,${ENABLED_PYTHON3_PACKAGES}, =~ ,${dir}, ]] && enabled=0
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done
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$xtrace
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return $enabled
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}
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# python3_disabled_for() checks if the service(s) specified as arguments are
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# disabled by the user in ``DISABLED_PYTHON3_PACKAGES``.
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#
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# Multiple services specified as arguments are ``OR``'ed together; the test
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# is a short-circuit boolean, i.e it returns on the first match.
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#
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# Uses global ``DISABLED_PYTHON3_PACKAGES``
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# python3_disabled_for dir [dir ...]
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function python3_disabled_for {
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local xtrace
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xtrace=$(set +o | grep xtrace)
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set +o xtrace
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local enabled=1
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local dirs=$@
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local dir
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for dir in ${dirs}; do
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[[ ,${DISABLED_PYTHON3_PACKAGES}, =~ ,${dir}, ]] && enabled=0
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done
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$xtrace
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return $enabled
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}
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# enable_python3_package() adds the repositories passed as argument to the
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# ``ENABLED_PYTHON3_PACKAGES`` list, if they are not already present.
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#
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# For example:
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# enable_python3_package nova
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#
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# Uses global ``ENABLED_PYTHON3_PACKAGES``
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# enable_python3_package dir [dir ...]
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function enable_python3_package {
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local xtrace
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xtrace=$(set +o | grep xtrace)
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set +o xtrace
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local tmpsvcs="${ENABLED_PYTHON3_PACKAGES}"
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local python3
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for dir in $@; do
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if [[ ,${DISABLED_PYTHON3_PACKAGES}, =~ ,${dir}, ]]; then
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warn $LINENO "Attempt to enable_python3_package ${dir} when it has been disabled"
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continue
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fi
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if ! python3_enabled_for $dir; then
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tmpsvcs+=",$dir"
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fi
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done
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ENABLED_PYTHON3_PACKAGES=$(_cleanup_service_list "$tmpsvcs")
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$xtrace
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}
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# disable_python3_package() prepares the services passed as argument to be
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# removed from the ``ENABLED_PYTHON3_PACKAGES`` list, if they are present.
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#
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# For example:
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# disable_python3_package swift
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#
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# Uses globals ``ENABLED_PYTHON3_PACKAGES`` and ``DISABLED_PYTHON3_PACKAGES``
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# disable_python3_package dir [dir ...]
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function disable_python3_package {
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local xtrace
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xtrace=$(set +o | grep xtrace)
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set +o xtrace
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local disabled_svcs="${DISABLED_PYTHON3_PACKAGES}"
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local enabled_svcs=",${ENABLED_PYTHON3_PACKAGES},"
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local dir
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for dir in $@; do
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disabled_svcs+=",$dir"
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if python3_enabled_for $dir; then
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enabled_svcs=${enabled_svcs//,$dir,/,}
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fi
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done
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DISABLED_PYTHON3_PACKAGES=$(_cleanup_service_list "$disabled_svcs")
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ENABLED_PYTHON3_PACKAGES=$(_cleanup_service_list "$enabled_svcs")
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$xtrace
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}
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# Wrapper for ``pip install`` to set cache and proxy environment variables
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# Uses globals ``OFFLINE``, ``PIP_VIRTUAL_ENV``,
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# ``PIP_UPGRADE``, ``TRACK_DEPENDS``, ``*_proxy``,
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# pip_install package [package ...]
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function pip_install {
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local xtrace result
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xtrace=$(set +o | grep xtrace)
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set +o xtrace
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local upgrade=""
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local offline=${OFFLINE:-False}
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if [[ "$offline" == "True" || -z "$@" ]]; then
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$xtrace
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return
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fi
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time_start "pip_install"
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PIP_UPGRADE=$(trueorfalse False PIP_UPGRADE)
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if [[ "$PIP_UPGRADE" = "True" ]] ; then
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upgrade="--upgrade"
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fi
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if [[ -z "$os_PACKAGE" ]]; then
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GetOSVersion
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fi
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if [[ $TRACK_DEPENDS = True && ! "$@" =~ virtualenv ]]; then
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# TRACK_DEPENDS=True installation creates a circular dependency when
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# we attempt to install virtualenv into a virtualenv, so we must global
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# that installation.
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source $DEST/.venv/bin/activate
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local cmd_pip=$DEST/.venv/bin/pip
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local sudo_pip="env"
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else
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if [[ -n ${PIP_VIRTUAL_ENV:=} && -d ${PIP_VIRTUAL_ENV} ]]; then
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local cmd_pip=$PIP_VIRTUAL_ENV/bin/pip
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local sudo_pip="env"
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else
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local cmd_pip
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cmd_pip=$(get_pip_command $PYTHON2_VERSION)
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local sudo_pip="sudo -H"
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if python3_enabled; then
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# Look at the package classifiers to find the python
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# versions supported, and if we find the version of
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# python3 we've been told to use, use that instead of the
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# default pip
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local package_dir=${!#}
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local python_versions
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# Special case some services that have experimental
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# support for python3 in progress, but don't claim support
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# in their classifier
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echo "Check python version for : $package_dir"
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if python3_disabled_for ${package_dir##*/}; then
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echo "Explicitly using $PYTHON2_VERSION version to install $package_dir based on DISABLED_PYTHON3_PACKAGES"
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elif python3_enabled_for ${package_dir##*/}; then
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echo "Explicitly using $PYTHON3_VERSION version to install $package_dir based on ENABLED_PYTHON3_PACKAGES"
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sudo_pip="$sudo_pip LC_ALL=en_US.UTF-8"
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cmd_pip=$(get_pip_command $PYTHON3_VERSION)
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elif [[ -d "$package_dir" ]]; then
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python_versions=$(get_python_versions_for_package $package_dir)
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if [[ $python_versions =~ $PYTHON3_VERSION ]]; then
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echo "Automatically using $PYTHON3_VERSION version to install $package_dir based on classifiers"
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sudo_pip="$sudo_pip LC_ALL=en_US.UTF-8"
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cmd_pip=$(get_pip_command $PYTHON3_VERSION)
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else
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# The package may not have yet advertised python3.5
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# support so check for just python3 classifier and log
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# a warning.
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python3_classifier=$(check_python3_support_for_package_local $package_dir)
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if [[ ! -z "$python3_classifier" ]]; then
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echo "Automatically using $PYTHON3_VERSION version to install $package_dir based on local package settings"
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sudo_pip="$sudo_pip LC_ALL=en_US.UTF-8"
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cmd_pip=$(get_pip_command $PYTHON3_VERSION)
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fi
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fi
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else
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# Check pypi as we don't have the package on disk
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package=$(echo $package_dir | grep -o '^[.a-zA-Z0-9_-]*')
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python3_classifier=$(check_python3_support_for_package_remote $package)
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if [[ ! -z "$python3_classifier" ]]; then
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echo "Automatically using $PYTHON3_VERSION version to install $package based on remote package settings"
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sudo_pip="$sudo_pip LC_ALL=en_US.UTF-8"
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cmd_pip=$(get_pip_command $PYTHON3_VERSION)
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fi
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fi
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fi
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fi
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fi
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cmd_pip="$cmd_pip install"
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# Always apply constraints
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cmd_pip="$cmd_pip -c $REQUIREMENTS_DIR/upper-constraints.txt"
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# FIXME(dhellmann): Need to force multiple versions of pip for
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# packages like setuptools?
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local pip_version
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pip_version=$(python -c "import pip; \
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print(pip.__version__.strip('.')[0])")
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if (( pip_version<6 )); then
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die $LINENO "Currently installed pip version ${pip_version} does not" \
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"meet minimum requirements (>=6)."
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fi
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$xtrace
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# adding SETUPTOOLS_SYS_PATH_TECHNIQUE is a workaround to keep
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# the same behaviour of setuptools before version 25.0.0.
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# related issue: https://github.com/pypa/pip/issues/3874
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$sudo_pip \
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http_proxy="${http_proxy:-}" \
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https_proxy="${https_proxy:-}" \
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no_proxy="${no_proxy:-}" \
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PIP_FIND_LINKS=$PIP_FIND_LINKS \
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SETUPTOOLS_SYS_PATH_TECHNIQUE=rewrite \
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$cmd_pip $upgrade \
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$@
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result=$?
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# Also install test requirements
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local test_req="${!#}/test-requirements.txt"
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if [[ $result == 0 ]] && [[ -e "$test_req" ]]; then
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echo "Installing test-requirements for $test_req"
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$sudo_pip \
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http_proxy=${http_proxy:-} \
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https_proxy=${https_proxy:-} \
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no_proxy=${no_proxy:-} \
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PIP_FIND_LINKS=$PIP_FIND_LINKS \
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$cmd_pip $upgrade \
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-r $test_req
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result=$?
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fi
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time_stop "pip_install"
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return $result
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}
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# get version of a package from global requirements file
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# get_from_global_requirements <package>
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function get_from_global_requirements {
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local package=$1
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local required_pkg
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required_pkg=$(grep -i -h ^${package} $REQUIREMENTS_DIR/global-requirements.txt | cut -d\# -f1)
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if [[ $required_pkg == "" ]]; then
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die $LINENO "Can't find package $package in requirements"
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fi
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echo $required_pkg
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}
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# should we use this library from their git repo, or should we let it
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# get pulled in via pip dependencies.
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function use_library_from_git {
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local name=$1
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local enabled=1
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[[ ${LIBS_FROM_GIT} = 'ALL' ]] || [[ ,${LIBS_FROM_GIT}, =~ ,${name}, ]] && enabled=0
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return $enabled
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}
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# determine if a package was installed from git
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function lib_installed_from_git {
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local name=$1
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pip freeze 2>/dev/null | grep -- "$name" | grep -q -- '-e git'
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}
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# check that everything that's in LIBS_FROM_GIT was actually installed
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# correctly, this helps double check issues with library fat fingering.
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function check_libs_from_git {
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local lib=""
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local not_installed=""
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for lib in $(echo ${LIBS_FROM_GIT} | tr "," " "); do
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if ! lib_installed_from_git "$lib"; then
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not_installed+=" $lib"
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fi
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done
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# if anything is not installed, say what it is.
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if [[ -n "$not_installed" ]]; then
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die $LINENO "The following LIBS_FROM_GIT were not installed correct: $not_installed"
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fi
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}
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# setup a library by name. If we are trying to use the library from
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# git, we'll do a git based install, otherwise we'll punt and the
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# library should be installed by a requirements pull from another
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# project.
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function setup_lib {
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local name=$1
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local dir=${GITDIR[$name]}
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setup_install $dir
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}
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# setup a library by name in editable mode. If we are trying to use
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# the library from git, we'll do a git based install, otherwise we'll
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# punt and the library should be installed by a requirements pull from
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# another project.
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#
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# use this for non namespaced libraries
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function setup_dev_lib {
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local name=$1
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local dir=${GITDIR[$name]}
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if python3_enabled; then
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# Turn off Python 3 mode and install the package again,
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# forcing a Python 2 installation. This ensures that all libs
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# being used for development are installed under both versions
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# of Python.
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echo "Installing $name again without Python 3 enabled"
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USE_PYTHON3=False
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setup_develop $dir
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USE_PYTHON3=True
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fi
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setup_develop $dir
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}
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# this should be used if you want to install globally, all libraries should
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# use this, especially *oslo* ones
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#
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# setup_install project_dir [extras]
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# project_dir: directory of project repo (e.g., /opt/stack/keystone)
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# extras: comma-separated list of optional dependencies to install
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# (e.g., ldap,memcache).
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# See http://docs.openstack.org/developer/pbr/#extra-requirements
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# The command is like "pip install <project_dir>[<extras>]"
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function setup_install {
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local project_dir=$1
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local extras=$2
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_setup_package_with_constraints_edit $project_dir "" $extras
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}
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# this should be used for projects which run services, like all services
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#
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# setup_develop project_dir [extras]
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# project_dir: directory of project repo (e.g., /opt/stack/keystone)
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# extras: comma-separated list of optional dependencies to install
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# (e.g., ldap,memcache).
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# See http://docs.openstack.org/developer/pbr/#extra-requirements
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# The command is like "pip install -e <project_dir>[<extras>]"
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function setup_develop {
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local project_dir=$1
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local extras=$2
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_setup_package_with_constraints_edit $project_dir -e $extras
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}
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# determine if a project as specified by directory is in
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# projects.txt. This will not be an exact match because we throw away
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# the namespacing when we clone, but it should be good enough in all
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# practical ways.
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function is_in_projects_txt {
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local project_dir=$1
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local project_name
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project_name=$(basename $project_dir)
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grep -q "/$project_name\$" $REQUIREMENTS_DIR/projects.txt
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}
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# ``pip install -e`` the package, which processes the dependencies
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# using pip before running `setup.py develop`
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#
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# Updates the constraints from REQUIREMENTS_DIR to reflect the
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# future installed state of this package. This ensures when we
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# install this package we get the from source version.
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#
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# Uses globals ``REQUIREMENTS_DIR``
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# _setup_package_with_constraints_edit project_dir flags [extras]
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# project_dir: directory of project repo (e.g., /opt/stack/keystone)
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# flags: pip CLI options/flags
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# extras: comma-separated list of optional dependencies to install
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# (e.g., ldap,memcache).
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# See http://docs.openstack.org/developer/pbr/#extra-requirements
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# The command is like "pip install <flags> <project_dir>[<extras>]"
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function _setup_package_with_constraints_edit {
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local project_dir=$1
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local flags=$2
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local extras=$3
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# Normalize the directory name to avoid
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# "installation from path or url cannot be constrained to a version"
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# error.
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# REVISIT(yamamoto): Remove this when fixed in pip.
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# https://github.com/pypa/pip/pull/3582
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project_dir=$(cd $project_dir && pwd)
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|
if [ -n "$REQUIREMENTS_DIR" ]; then
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|
# Constrain this package to this project directory from here on out.
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|
local name
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|
name=$(awk '/^name.*=/ {print $3}' $project_dir/setup.cfg)
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|
$REQUIREMENTS_DIR/.venv/bin/edit-constraints \
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|
$REQUIREMENTS_DIR/upper-constraints.txt -- $name \
|
|
"$flags file://$project_dir#egg=$name"
|
|
fi
|
|
|
|
setup_package $project_dir "$flags" $extras
|
|
|
|
}
|
|
|
|
# ``pip install -e`` the package, which processes the dependencies
|
|
# using pip before running `setup.py develop`
|
|
#
|
|
# Uses globals ``STACK_USER``
|
|
# setup_package project_dir [flags] [extras]
|
|
# project_dir: directory of project repo (e.g., /opt/stack/keystone)
|
|
# flags: pip CLI options/flags
|
|
# extras: comma-separated list of optional dependencies to install
|
|
# (e.g., ldap,memcache).
|
|
# See http://docs.openstack.org/developer/pbr/#extra-requirements
|
|
# The command is like "pip install <flags> <project_dir>[<extras>]"
|
|
function setup_package {
|
|
local project_dir=$1
|
|
local flags=$2
|
|
local extras=$3
|
|
|
|
# if the flags variable exists, and it doesn't look like a flag,
|
|
# assume it's actually the extras list.
|
|
if [[ -n "$flags" && -z "$extras" && ! "$flags" =~ ^-.* ]]; then
|
|
extras=$flags
|
|
flags=""
|
|
fi
|
|
|
|
if [[ ! -z "$extras" ]]; then
|
|
extras="[$extras]"
|
|
fi
|
|
|
|
pip_install $flags "$project_dir$extras"
|
|
# ensure that further actions can do things like setup.py sdist
|
|
if [[ "$flags" == "-e" ]]; then
|
|
safe_chown -R $STACK_USER $1/*.egg-info
|
|
fi
|
|
}
|
|
|
|
# Report whether python 3 should be used
|
|
function python3_enabled {
|
|
if [[ $USE_PYTHON3 == "True" ]]; then
|
|
return 0
|
|
else
|
|
return 1
|
|
fi
|
|
}
|
|
|
|
# Install python3 packages
|
|
function install_python3 {
|
|
if is_ubuntu; then
|
|
apt_get install python${PYTHON3_VERSION} python${PYTHON3_VERSION}-dev
|
|
fi
|
|
}
|
|
|
|
function install_devstack_tools {
|
|
# intentionally old to ensure devstack-gate has control
|
|
local dstools_version=${DSTOOLS_VERSION:-0.1.2}
|
|
install_python3
|
|
sudo pip3 install -U devstack-tools==${dstools_version}
|
|
}
|
|
|
|
# Restore xtrace
|
|
$INC_PY_TRACE
|
|
|
|
# Local variables:
|
|
# mode: shell-script
|
|
# End:
|