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#!/bin/bash
# Where the version configs are generated
config_dir=config/versions
defaults=packages/default.desc
declare -A forks
debug()
{
if [ -n "${DEBUG}" ]; then
echo ":: $@" >&2
fi
}
read_files()
{
local f l
for f in ${defaults} "$@"; do
[ -r "${f}" ] || continue
while read l; do
case "${l}" in
"#*") continue;;
*) echo "[${l%%=*}]=${l#*=}";;
esac
done < "${f}"
done
}
derived_package()
{
info[name]=${p}
info[forks]=${forks[${p}]}
info[master]=${info[master]:-${p}}
# Various kconfig-ized prefixes
tmp=${p^^}
info[pfx]=${tmp//[^0-9A-Z_]/_}
tmp=${info[origin]^^}
info[originpfx]=${tmp//[^0-9A-Z_/_}
tmp=${info[master]^^}
info[masterpfx]=${tmp//[^0-9A-Z_/_}
}
read_package_desc()
{
read_files "packages/${1}/package.desc"
}
read_version_desc()
{
read_files "packages/${1}/package.desc" "packages/${1}/${2}/version.desc"
}
for_each_package()
{
local list="${1}"
local -A info
local p tmp
debug "Entering: for_each_package $@"
shift
for p in ${list}; do
eval "info=( `read_package_desc ${p}` )"
derived_package ${p}
debug "Evaluate for ${p}: $@"
eval "$@"
done
}
for_each_version()
{
local pkg="${1}"
local -A info prev
local -a versions
local v tmp
debug "Entering: for_each_version $@"
shift
versions=( `cd packages/${pkg} && ls */version.desc 2>/dev/null | sed 's,/version.desc$,,' | sort -rV` )
tmp=
for v in "${versions[@]}"; do
if [ -n "${tmp}" ]; then
prev["${tmp}"]=${v}
fi
tmp="${v}"
done
if [ -n "${tmp}" ]; then
prev["${tmp}"]=
fi
for v in "${versions[@]}"; do
eval "info=( `read_version_desc "${pkg}" "${v}"` )"
debug "INFO [[ `read_version_desc "${pkg}" "${v}"` ]]"
derived_package ${pkg}
info[ver]="${v}"
info[kcfg]="${v//[^0-9A-Za-z_]/_}"
info[prev]="${prev[${v}]//[^0-9A-Za-z_]/_}"
debug "Evaluate for ${pkg}/${v}: $@"
eval "$@"
done
}
# Setup: find master-fork relationships between packages
find_forks()
{
[ "${info[master]}" != "${info[name]}" ] && forks[${info[master]}]+=" ${info[name]}"
}
gen_versions()
{
local cond=$1
debug "Entering: gen_versions $@"
if [ -n "${cond}" ]; then
cat <<EOF
if ${cond}
EOF
fi
cat <<EOF
# Versions for ${info[name]}
choice
bool
prompt "Version of ${info[name]}"
# Defined versions first
EOF
for_each_version "${info[name]}" echo \"'
config ${info[pfx]}_V_${info[kcfg]}
bool \"${info[ver]}\"
select ${info[pfx]}_V_${info[kcfg]}_or_later${info[obsolete]:+
depends on OBSOLETE}${info[experimental]:+
depends on EXPERIMENTAL}'\"
# TBD devel (from official repository)
# TBD show changeset/revision/branch selection
# TBD custom (local tarball/directory)
# TBD show custom location selection
cat <<EOF
endchoice
# Text string with the version of ${info[name]}
config ${info[pfx]}_VERSION
string
EOF
for_each_version "${info[name]}" echo \
\"' default \"${info[ver]}\" if ${info[pfx]}_V_${info[kcfg]}'\"
cat <<EOF
default "unknown"
EOF
cat <<EOF
# Flags for all versions indicating "this or later".
# Only produced for master version of the package (which is what
# the build scriptes are tied to); derived versions must
# select the matching master version.
EOF
for_each_version "${info[name]}" echo \"'
config ${info[pfx]}_V_${info[kcfg]}_or_later
bool${info[prev]:+
select ${info[pfx]}_V_${info[prev]}_or_later}'\"
if [ -n "${cond}" ]; then
cat <<EOF
endif
EOF
fi
}
# Generate a menu for selecting a fork for a component
gen_selection()
{
local only_obsolete=yes only_experimental=yes
for_each_version "${info[name]}" '
[ -z "${info[experimental]}" ] && only_experimental=
[ -z "${info[obsolete]}" ] && only_obsolete=
'
debug "${info[name]}: ${only_obsolete:+obsolete} ${only_experimental:+experimental}"
echo "
config ${info[masterpfx]}_USE_${info[originpfx]}
bool \"${info[origin]}\"${only_obsolete:+
depends on OBSOLETE}${only_experimental:+
depends on EXPERIMENTAL}
help" && sed 's/^/\t /' "packages/${info[origin]}.help"
}
# Generate a single configuration file
gen_one_component()
{
local cond
debug "Entering: gen_one_component $@"
# Non-masters forks: skip, will be generated along with their master version
if [ "${info[master]}" != "${info[name]}" ]; then
debug "Skip '${info[name]}': master '${info[master]}'"
return
fi
debug "Generating '${info[name]}.in'${info[forks]:+ (includes ${info[forks]}})"
exec >"${config_dir}/${info[name]}.in"
cat <<EOF
#
# DO NOT EDIT! This file is automatically generated.
#
EOF
# Generate fork selection, if there is more than one fork
if [ -n "${info[forks]}" ]; then
cat <<EOF
choice
bool "Show ${info[name]} versions from"
EOF
for_each_package "${info[name]} ${info[forks]}" gen_selection
cat <<EOF
endchoice
EOF
for_each_package "${info[name]} ${info[forks]}" \
gen_versions '${info[masterpfx]}_USE_${info[originpfx]}'
else
for_each_package "${info[name]}" gen_versions
fi
}
rm -rf "${config_dir}"
mkdir -p "${config_dir}"
all_packages=`cd packages && ls */package.desc 2>/dev/null | sed 's,/package.desc$,,' | xargs echo`
debug "Generating package version descriptions"
debug "Packages: ${all_packages}"
for_each_package "${all_packages}" find_forks
for_each_package "${all_packages}" gen_one_component
debug "Done!"
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