diff options
| -rw-r--r-- | Config.in | 11 | ||||
| -rw-r--r-- | Makefile | 2 | ||||
| -rwxr-xr-x | support/scripts/br2-external | 88 |
3 files changed, 89 insertions, 12 deletions
@@ -14,10 +14,6 @@ config BR2_HOSTARCH string option env="HOSTARCH" -config BR2_EXTERNAL - string - option env="BR2_EXTERNAL" - config BR2_BUILD_DIR string option env="BUILD_DIR" @@ -729,11 +725,4 @@ source "package/Config.in.host" source "Config.in.legacy" -menu "User-provided options" - depends on BR2_EXTERNAL != "support/dummy-external" - -source "$BR2_EXTERNAL/Config.in" - -endmenu - source "$BR2_BUILD_DIR/.br2-external.in" @@ -879,7 +879,7 @@ endif # value of BR2_EXTERNAL is changed. .PHONY: $(BUILD_DIR)/.br2-external.in $(BUILD_DIR)/.br2-external.in: $(BUILD_DIR) - @touch $@ + $(Q)support/scripts/br2-external -o "$(@)" $(BR2_EXTERNAL) # printvars prints all the variables currently defined in our # Makefiles. Alternatively, if a non-empty VARS variable is passed, diff --git a/support/scripts/br2-external b/support/scripts/br2-external new file mode 100755 index 000000000..6c2b85b5c --- /dev/null +++ b/support/scripts/br2-external @@ -0,0 +1,88 @@ +#!/bin/bash +set -e + +# The location of the br2-external tree, once validated. +declare BR2_EXT + +main() { + local OPT OPTARG + local br2_ext ofile + + while getopts :ho: OPT; do + case "${OPT}" in + h) help; exit 0;; + o) ofile="${OPTARG}";; + :) error "option '%s' expects a mandatory argument\n" "${OPTARG}";; + \?) error "unknown option '%s'\n" "${OPTARG}";; + esac + done + # Forget options; keep only positional args + shift $((OPTIND-1)) + + if [ ${#} -ne 1 ]; then + error "need exactly one br2-external tree to be specified\n" + fi + br2_ext="${1}" + + if [ -z "${ofile}" ]; then + error "no output file specified (-o)\n" + fi + + do_validate "${br2_ext}" + + do_kconfig >"${ofile}" +} + +# Validates the br2-external tree passed as argument. Makes it cannonical +# and store it in global variable BR2_EXT. +do_validate() { + local br2_ext="${1}" + + if [ ! -d "${br2_ext}" ]; then + error "'%s': no such file or directory\n" "${br2_ext}" + fi + if [ ! -r "${br2_ext}" -o ! -x "${br2_ext}" ]; then + error "'%s': permission denied\n" "${br2_ext}" + fi + + BR2_EXT="$(cd "${br2_ext}"; pwd -P )" +} + +# Generate the kconfig snippet for the br2-external tree. +do_kconfig() { + printf '#\n# Automatically generated file; DO NOT EDIT.\n#\n' + printf '\n' + printf 'config BR2_EXTERNAL\n' + printf '\tstring\n' + printf '\tdefault "%s"\n' "${BR2_EXT}" + printf '\n' + printf 'menu "User-provided options"\n' + printf '\tdepends on BR2_EXTERNAL != "support/dummy-external"\n' + printf '\n' + printf 'source "%s/Config.in"\n' "${BR2_EXT}" + printf '\n' + printf "endmenu # User-provided options\n" +} + +help() { + cat <<-_EOF_ + Usage: + ${my_name} -o FILE PATH + + ${my_name} generates the kconfig snippet to include the configuration + options specified in the br2-external tree passed as positional argument. + + Options: + -o FILE + FILE in which to generate the kconfig snippet. + + Returns: + 0 If no error + !0 If any error + _EOF_ +} + +error() { local fmt="${1}"; shift; printf "%s: ${fmt}" "${my_name}" "${@}" >&2; exit 1; } + +my_name="${0##*/}" +main "${@}" |