The usage of 'echo -e' for printing the usage message is not POSIX
conform and is not being supported in the default shell of Debian
(dash).
As the 'Rationale' of the POSIX 'printf' documentation states, it was
created "due to irreconcilable differences in the various versions of
echo extant" and it should provide better compatibility throughout
different shells.
Signed-off-by: Silvano Cirujano Cuesta <silvano.cirujano-cuesta@siemens.com>
This shall help to standardize the way how to run kas inside a docker
container on a kas file that is locally available. The pattern is
- checkout repo with kas file(s)
- go to directory where the build output should go into
- call "kas-docker build /path/to/kas.yml"
As building Isar images both require a specific docker image (that
could be changed, though) as well as additional privileges (that needs
to be changed in Isar one day), the option "--isar" selects that mode.
And because the output of an Isar build generally contains root-owned
files, the clean command is added which use docker privileges to clean
the build folder, avoiding a "sudo".
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
