build-uwsgi

#!/bin/sh -eu

# build-uwsgi: download and build uWSGI from GitHub source
# Copyright (C) 2018  "Michael G. Morey" <mgmorey@gmail.com>

# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.

abort() {
    printf "$@" >&2
    exit 1
}

assert() {
    "$@" || abort '%s: Assertion failed: %s\n' "$script" "$*"
}

build_binary() (
    assert [ $# -eq 2 ]
    assert [ -n "$1" ]
    assert [ -n "$2" ]

    if [ -x $2 ]; then
	return 0
    fi

    case $2 in
	(uwsgi)
	    CC=gcc $1 uwsgiconfig.py --build $UWSGI_BUILDCONF
	    ;;
	(*)
	    CC=gcc $1 uwsgiconfig.py $(get_options) ${2%_*}
	    ;;
    esac
)

build_uwsgi() (
    assert [ $# -ge 3 -a $# -le 4 ]
    assert [ -n "$1" ]
    assert [ -n "$2" ]
    python=$1
    python_version=$2
    shift 2
    fetch_uwsgi_source

    if ! cd "$HOME/git/$UWSGI_BRANCH"; then
	return 1
    fi

    for binary; do
	build_binary $python $binary
    done
)

fetch_uwsgi_source() {
    if [ -d "$HOME/git/$UWSGI_BRANCH" ]; then
	return 0
    fi

    cd
    mkdir -p git
    cd git
    git clone -b $UWSGI_BRANCH $UWSGI_URL $UWSGI_BRANCH
}

get_options() {
    case "$UWSGI_BUILDCONF" in
	(core)
	    options="--plugin plugins/python $UWSGI_BUILDCONF"
	    ;;
	(*)
	    options=
	    ;;
    esac

    printf '%s\n' "$options"
}

usage_error() {
    printf "$@" >&2
    exit 2
}

script=$(basename "$0")

case "$0" in
    (*/*)
	script_dir=$(cd "$(dirname "$0")" && pwd)
	;;
    (*)
	script_dir=
	;;
esac

script_prefix=${script_dir:+$script_dir/}

. "${script_prefix}common-functions.sh"
. "${script_prefix}utility-functions.sh"
. "${script_prefix}restapi-functions.sh"
. "${script_prefix}restapi-parameters.sh"

if [ $# -lt 2 ]; then
    usage_error '%s: Not enough arguments\n' "$script"
elif [ $# -gt 2 ]; then
    usage_error '%s: Too many arguments\n' "$script"
fi

if [ "$(id -u)" -eq 0 ]; then
    abort '%s: Must be run as a non-privileged user\n' "$script"
fi

SYSTEM_PYTHON=$1
SYSTEM_PYTHON_VERSION=$2

configure_all
build_uwsgi $SYSTEM_PYTHON $SYSTEM_PYTHON_VERSION \
	    $UWSGI_BINARY_NAME $UWSGI_PLUGIN_NAME