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#!/usr/bin/env bash
# Copyright (c) 2016 Egor Tensin <Egor.Tensin@gmail.com>
# This file is part of the "Linux/Cygwin environment" project.
# For details, see https://github.com/egor-tensin/linux-home.
# Distributed under the MIT License.
_runc_os_is_cygwin() (
set -o errexit -o nounset -o pipefail
local os
os="$( uname -o )"
test 'Cygwin' = "$os"
)
if _runc_os_is_cygwin; then
_runc_exe_ext='.exe'
fi
runc_use_gcc() {
runc_compiler=gcc
runcxx_compiler=g++
declare -ag runc_flags=('-Wall' '-Wextra')
declare -ag runcxx_flags=('-Wall' '-Wextra' '-std=c++14')
}
runc_use_clang() {
runc_compiler=clang
runcxx_compiler=clang++
declare -ag runc_flags=('-Wall' '-Wextra')
declare -ag runcxx_flags=('-Wall' '-Wextra')
}
runc_use_gcc
_runc_get_absolute_path() {
readlink -z --canonicalize-missing -- "$@"
}
_runc_usage() (
set -o errexit -o nounset -o pipefail
local prefix="${FUNCNAME[0]}"
[ "${#FUNCNAME[@]}" -gt 1 ] && prefix="${FUNCNAME[1]}"
local msg
for msg; do
echo "$prefix: $msg"
done
echo "usage: $prefix [-h|--help] [-c|--comp-arg ARG]... [-I DIR]... [-L DIR]... [-l LIB]... PATH... [-- [PROG_ARG]...]"
)
runc() (
set -o errexit -o nounset -o pipefail
local -a c_flags=(${runc_flags[@]+"${runc_flags[@]}"})
local -a src_files=()
local -a include_dirs=()
local -a lib_dirs=()
local -a libs=()
local -a prog_args
while [ "$#" -gt 0 ]; do
local key="$1"
shift
case "$key" in
-h|--help)
_runc_usage
return 0
;;
-c|--comp-arg|-I|-L|-l)
if [ "$#" -eq 0 ]; then
_runc_usage "missing argument for parameter: $key" >&2
return 1
fi
;;&
-c|--comp-arg)
c_flags+=("$1")
shift
;;
-I)
include_dirs+=("$1")
shift
;;
-L)
lib_dirs+=("$1")
shift
;;
-l)
libs+=("$1")
shift
;;
--)
break
;;
*)
src_files+=("$key")
;;
esac
done
prog_args=("$@")
if [ "${#src_files[@]}" -eq 0 ]; then
_runc_usage 'at least one source file is required' >&2
return 1
fi
local -a _src_files=(${src_files[@]+"${src_files[@]}"})
src_files=()
local src_file
while IFS= read -d '' -r src_file; do
src_files+=("$src_file")
done < <( _runc_get_absolute_path ${_src_files[@]+"${_src_files[@]}"} )
if [ "${#include_dirs[@]}" -gt 0 ]; then
local include_dir
while IFS= read -d '' -r include_dir; do
c_flags+=("-I$include_dir")
done < <( _runc_get_absolute_path ${include_dirs[@]+"${include_dirs[@]}"} )
fi
if [ "${#lib_dirs[@]}" -gt 0 ]; then
local lib_dir
while IFS= read -d '' -r lib_dir; do
c_flags+=("-L$lib_dir")
done < <( _runc_get_absolute_path ${lib_dirs[@]+"${lib_dirs[@]}"} )
fi
if [ "${#libs[@]}" -gt 0 ]; then
local lib
for lib in ${libs[@]+"${libs[@]}"}; do
c_flags+=("-l$lib")
done
fi
local build_dir
build_dir="$( mktemp --directory )"
local rm_build_dir
rm_build_dir="$( printf -- 'popd > /dev/null && rm -rf -- %q' "$build_dir" )"
trap "$rm_build_dir" EXIT
pushd "$build_dir" > /dev/null
local output_name
output_name="$( mktemp --tmpdir=. -- "${FUNCNAME[0]}XXX${_runc_exe_ext-}" )"
"${runc_compiler:-gcc}" -o "$output_name" \
${src_files[@]+"${src_files[@]}"} \
${c_flags[@]+"${c_flags[@]}"}
"$output_name" ${prog_args[@]+"${prog_args[@]}"}
)
runcxx() (
set -o errexit -o nounset -o pipefail
local -a runc_flags=(${runcxx_flags[@]+"${runcxx_flags[@]}"})
BASH_ENV=<( declare -p runc_flags ) \
runc_compiler="${runcxx_compiler:-g++}" \
runc "$@"
)
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