[U-Boot] cli: hush: Adjust 'run' command to run each line of the env var

[Tom Rini]

On Tue, Oct 07, 2014 at 01:59:43PM -0600, Simon Glass wrote:

> The run command treats each argument an an environment variable. It gets the
> value of each variable and executes it as a command. If an environment
> variable contains a newline and the hush cli is used, it is supposed to
> execute each line one after the other.
> 
> Normally a newline signals to hush to exit - this is used in normal command
> line entry - after a command is entered we want to return to allow the user
> to enter the next one. But environment variables obviously need to execute
> to completion.
> 
> Add a special case for the execution of environment variables which
> continues when a newline is seen, and add a few tests to check this
> behaviour.
> 
> Note: it's not impossible that this may cause regressions in other areas.
> I can't think of a case but with any change of behaviour with limited test
> coverage there is always a risk. From what I can tell this behaviour has
> been around since at least U-Boot 2011.03, although this pre-dates sandbox
> and I have not tested it on real hardware.
> 
> Reported-by: Wolfgang Denk <wd at denx.de>
> Signed-off-by: Simon Glass <sjg at chromium.org>

Applied to u-boot/master, thanks!

-- 
Tom
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