Hi,
> Wolfgang Denk wrote:
>>> One minor flaw, I don't see how "bootm" the env script could run "bootm"
>>> the built-in command, because it would instead recursively run "bootm"
>>> the env script if scripts have higher priority and the command line
>>> "bootm" would run the built-in "bootm" if scripts have lower priority.
>>
>> That's why I think we should have an explicit "builtin" command, i. e.
>> command with the name "builtin" that will always run the corresponding
>> builtin command, no if there is a "command alias" or not - similar to
>> the bash command:
>
> Ahh, I missed the point that "builtin" was a command, not a concept.
> Yes, that solves the dilemma neatly.
>
> WRT Albert's comment:
>> ... and make sure that one can *never* define an environment variable
>> called 'builtin', and even remove any such definition if found in the
>> environment when reading it from persistent memory at boot.
>
> ...another way of handling this would be to special-case the "builtin"
> command so that it takes precedence over a "builtin" env variable (i.e.
> ignore an env variable named "builtin"). I'm not wild about
> auto-deleting env variables.
But ignoring it by having a separate precedence is again a special case
which we want to avoid ;)
So I agree 100% with the whole idea and agree with Albert to "fail
loudly" in this case (another pretty clever Unix design philosophy).
Cheers
Detlev
--
Directories are added, deleted, and rearranged much as you would
expect, even if you don't know it's what you'd expect.
-- Tom Lord in TLA Documentation
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