systemd: Fix systemd when used with busybox less

Per default systemd use a pager for the output of most of its tools
and it expect this pager to be color capable. But that is not the case
when the busybox `less` is used, which lead to output garbled by color
escape sequences.

To fix this issue add a profile frament that disable the systemd pager
when busybox `less` is detected.

(From OE-Core rev: 06271fd8d26bc34448524157077c23eb1ea29c52)

Signed-off-by: Alban Bedel <alban.bedel@aerq.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit de7e36a7858ebca4615975967fcad1c399eacdb0)
Signed-off-by: Jermain Horsman <jermain.horsman@nedap.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/meta/recipes-core/systemd/systemd/systemd-pager.sh b/meta/recipes-core/systemd/systemd/systemd-pager.sh
new file mode 100644
index 0000000000..86e3e0ab78
--- /dev/null
+++ b/meta/recipes-core/systemd/systemd/systemd-pager.sh
@@ -0,0 +1,7 @@
+# Systemd expect a color capable pager, however the less provided
+# by busybox is not. This make many interaction with systemd pretty
+# annoying. As a workaround we disable the systemd pager if less
+# is not the GNU version.
+if ! less -V > /dev/null 2>&1 ; then
+        export SYSTEMD_PAGER=
+fi