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#!/bin/bash
set -e
# Accept overrides from command line if needed
sed=${SED:-sed}
grep=${GREP:-grep}
# Generate either a choice or a menuconfig with the specified entries.
#
# Usage:
# generate a choice:
# gen_choice <out-file> <label> <config-prefix> <base-dir>
#
# generate a menuconfig:
# gen_menu <out-file> <label> <config-prefix> <base-dir>
#
# where:
# out-file
# put the generated choice/menuconfig into that file
# for choices, it acts as the base bname of the file, the secondary
# parts (the .in.2) are put in out-file.2
#
# label
# name for the entries family
# eg. Architecture, Kernel...
#
# config-prefix
# prefix for the choice entries
# eg. ARCH, KERNEL...
#
# base-dir
# base directory containing config files
# eg. config/arch, config/kernel...
#
# Helper: find the base names of all *.in files in a given directory
get_components() {
local dir="${1}"
local f b
for f in ${dir}/*.in; do
b=${f#${dir}/}
echo ${b%.in}
done
}
# Generate a choice
# See above for usage
gen_choice() {
local out_file="${1}"
local label="${2}"
local cfg_prefix="${3}"
local base_dir="${4}"
local file entry _entry
# Generate the part-1
exec >"${out_file}"
printf '# %s menu\n' "${label}"
printf '# Generated file, do not edit!!!\n'
printf '\n'
printf 'choice GEN_CHOICE_%s\n' "${cfg_prefix}"
printf ' bool\n'
printf ' prompt "%s"\n' "${label}"
printf '\n'
for entry in `get_components ${base_dir}`; do
file="${base_dir}/${entry}.in"
_entry=$(printf '%s\n' "${entry}" |"${sed}" -r -s -e 's/[-.+]/_/g;')
printf 'config %s_%s\n' "${cfg_prefix}" "${_entry}"
printf ' bool\n'
printf ' prompt "%s"\n' "${entry}"
"${sed}" -r -e '/^## depends on /!d; s/^## / /;' ${file} 2>/dev/null
"${sed}" -r -e '/^## select /!d; s/^## / /;' ${file} 2>/dev/null
if "${grep}" -E '^## help' ${file} >/dev/null 2>&1; then
printf ' help\n'
"${sed}" -r -e '/^## help ?/!d; s/^## help ?/ /;' ${file} 2>/dev/null
fi
printf '\n'
done
printf 'endchoice\n'
printf '\n'
printf 'config %s\n' "${cfg_prefix}"
for entry in `get_components ${base_dir}`; do
file="${base_dir}/${entry}.in"
_entry=$(printf '%s\n' "${entry}" |"${sed}" -r -s -e 's/[-.+]/_/g;')
printf ' default "%s" if %s_%s\n' "${entry}" "${cfg_prefix}" "${_entry}"
done
printf '\n'
for entry in `get_components ${base_dir}`; do
file="${base_dir}/${entry}.in"
_entry=$(printf '%s\n' "${entry}" |"${sed}" -r -s -e 's/[-.+]/_/g;')
printf 'if %s_%s\n' "${cfg_prefix}" "${_entry}"
printf 'source "%s"\n' "${file}"
printf 'endif\n'
done
# Generate the part-2
exec >"${out_file}.2"
printf '# %s second part options\n' "${label}"
printf '# Generated file, do not edit!!!\n'
for entry in `get_components ${base_dir}`; do
file="${base_dir}/${entry}.in"
_entry=$(printf '%s\n' "${entry}" |"${sed}" -r -s -e 's/[-.+]/_/g;')
if [ -f "${file}.2" ]; then
printf '\n'
printf 'if %s_%s\n' "${cfg_prefix}" "${_entry}"
printf 'comment "%s other options"\n' "${entry}"
printf 'source "%s.2"\n' "${file}"
printf 'endif\n'
fi
done
}
# Generate a menuconfig
# See above for usage
gen_menu() {
local out_file="${1}"
local label="${2}"
local cfg_prefix="${3}"
local base_dir="${4}"
local file entry _entry
# Generate the menuconfig
exec >"${out_file}"
printf '# %s menu\n' "${label}"
printf '# Generated file, do not edit!!!\n'
printf '\n'
for entry in `get_components ${base_dir}`; do
file="${base_dir}/${entry}.in"
_entry=$(printf '%s\n' "${entry}" |"${sed}" -r -s -e 's/[-.+]/_/g;')
printf 'menuconfig %s_%s\n' "${cfg_prefix}" "${_entry}"
printf ' bool\n'
if "${grep}" -E '^## default' ${file} >/dev/null 2>&1; then
"${sed}" -r -e '/^## default ?/!d; s/^## default ?/ default /;' ${file} 2>/dev/null
fi
printf ' prompt "%s"\n' "${entry}"
"${sed}" -r -e '/^## depends on /!d; s/^## / /;' ${file} 2>/dev/null
"${sed}" -r -e '/^## select /!d; s/^## / /;' ${file} 2>/dev/null
if "${grep}" -E '^## help' ${file} >/dev/null 2>&1; then
printf ' help\n'
"${sed}" -r -e '/^## help ?/!d; s/^## help ?/ /;' ${file} 2>/dev/null
fi
printf '\n'
printf 'if %s_%s\n' "${cfg_prefix}" "${_entry}"
printf 'source "%s"\n' "${file}"
printf 'endif\n'
printf '\n'
done
}
mkdir -p config/gen
gen_choice config/gen/arch.in "Target Architecture" "ARCH" "config/arch"
gen_choice config/gen/kernel.in "Target OS" "KERNEL" "config/kernel"
gen_choice config/gen/cc.in "Compiler" "CC" "config/cc"
gen_choice config/gen/binutils.in "Binutils" "BINUTILS" "config/binutils"
gen_choice config/gen/libc.in "C library" "LIBC" "config/libc"
gen_menu config/gen/debug.in "Debug facilities" "DEBUG" "config/debug"
gen_menu config/gen/companion_tools.in "Companion tools" "COMP_TOOLS" "config/companion_tools"
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