commit: d5b0c16d1d3fdf63d743b22e7192e88e04556b05
Author: Michał Górny <mgorny <AT> gentoo <DOT> org>
AuthorDate: Fri Nov 13 22:37:12 2020 +0000
Commit: Michał Górny <mgorny <AT> gentoo <DOT> org>
CommitDate: Sat Nov 14 14:01:37 2020 +0000
URL: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=d5b0c16d
kernel-build.eclass: Support merging config files
Add a convenience function to merge kernel config files from within
the build tree, and support merging user configs.
Signed-off-by: Michał Górny <mgorny <AT> gentoo.org>
eclass/kernel-build.eclass | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
diff --git a/eclass/kernel-build.eclass b/eclass/kernel-build.eclass
index 048d0c9b016..99279ba58a9 100644
--- a/eclass/kernel-build.eclass
+++ b/eclass/kernel-build.eclass
@@ -197,6 +197,38 @@ kernel-build_pkg_postinst() {
savedconfig_pkg_postinst
}
+# @FUNCTION: kernel-build_merge_configs
+# @USAGE: [distro.config...]
+# @DESCRIPTION:
+# Merge the config files specified as arguments (if any) into
+# the '.config' file in the current directory, then merge
+# any user-supplied configs from ${BROOT}/etc/kernel/config.d/*.config.
+# The '.config' file must exist already and contain the base
+# configuration.
+kernel-build_merge_configs() {
+ debug-print-function ${FUNCNAME} "${@}"
+
+ [[ -f .config ]] || die "${FUNCNAME}: .config does not exist"
+ has .config "${@}" &&
+ die "${FUNCNAME}: do not specify .config as parameter"
+
+ local shopt_save=$(shopt -p nullglob)
+ shopt -s nullglob
+ local user_configs=( "${BROOT}"/etc/kernel/config.d/*.config )
+ shopt -u nullglob
+
+ if [[ ${#user_configs[@]} -gt 0 ]]; then
+ elog "User config files are being applied:"
+ local x
+ for x in "${user_configs[@]}"; do
+ elog "- ${x}"
+ done
+ fi
+
+ ./scripts/kconfig/merge_config.sh -m -r \
+ .config "${@}" "${user_configs[@]}" || die
+}
+
_KERNEL_BUILD_ECLASS=1
fi
