carbon-config

commit f6ba8afa45eb308231b195fc3152a6ca0cb61539
parent ff427e65c3737322eee3eca97680b577ce4eae68
Author: Jan Pobrislo <ccx@webprojekty.cz>
Date:   Tue, 26 Jul 2022 18:03:25 +0200

Generate /etc/motd

Diffstat:
M
install
 | 
5
+++++
M
postinstall
 | 
6
++++++

2 files changed, 11 insertions(+), 0 deletions(-)
diff --git a/install b/install
@@ -23,6 +23,7 @@ die111() {  # 111: system call failed
 }
 
 install_to_all() {
+	local orig_cwd=$PWD
 	cd $ALL_DIR || exit $?
 	mkdir s6-rc-source || exit $?
 	./command/fsapply ./s6-rc-source $PWD/conf/s6-rc.fileset || exit $?
@@ -34,6 +35,10 @@ install_to_all() {
 	for cmd in init/bin/*; do
 		s6-ln -s ../$cmd ./command/$cmd:t || exit $?
 	done
+	cat >motd <<EOF
+Welcome to $(<conf/static/etc/hostname)!
+This system has configuration managed in $orig_cwd (last change on $(GIT_DIR=$orig_cwd/.git git show -s --pretty=format:%ai by %an))
+EOF || exit $?
 }
 typeset -f -t install_to_all
 
diff --git a/postinstall b/postinstall
@@ -76,6 +76,12 @@ setup_static_symlinks() {
 	symlink_static_file /etc/mkinitfs/mkinitfs.conf || return $?
 	symlink_static_file /etc/ssh/sshd_config || return $?
 	symlink_static_file /etc/update-extlinux.conf || return $?
+
+	# Not static, generated in ./install
+	if [[ ! -L /etc/motd && -f /etc/motd ]]; then
+		mv /etc/motd /etc/motd.orig.$EPOCHSECONDS || exit $?
+	fi
+	ensure_symlink /etc/motd ../current/motd || return $?
 }
 
 setup_storage() {