Smalltalk › Pharo › Pharo Smalltalk Users

CommandShell - linux - missing directory in path

_‹ Previous Topic Next Topic _›

Classic

List

Threaded

7 messages Options

IngoHohmann

CommandShell - linux - missing directory in path

Hi all,

as far as I know, NativeBoost does not yet allow starting external
programs on linux, so I'm trying to use CommandShell.

CommandShell new open; command: 'ls -l' .

And I get an error:

DirectoryDoesNotExist: Path / 'usr' / 'local' / 'sbin'

I must admit, that this directory is in $PATH, but is not available on
disk.

Is there a deeper reason to signal an error in this case, or should this
be treated as a bug?

(Pharo 2.0)

Kind regards,

Ingo

Camillo Bruni-3

Re: CommandShell - linux - missing directory in path

I can't properly answer your question, and in typical forum behavior
I suggest using a different approach :)

(PipeableOSProcess command: 'ls -l') output

On 2013-04-26, at 10:12, Ingo Hohmann <[hidden email]> wrote:

> Hi all,
>
> as far as I know, NativeBoost does not yet allow starting external
> programs on linux, so I'm trying to use CommandShell.
>
> CommandShell new open; command: 'ls -l' .
>
> And I get an error:
>
> DirectoryDoesNotExist: Path / 'usr' / 'local' / 'sbin'
>
>
> I must admit, that this directory is in $PATH, but is not available on
> disk.
>
> Is there a deeper reason to signal an error in this case, or should this
> be treated as a bug?
>
> (Pharo 2.0)
>
> Kind regards,
>
> Ingo
>

Mariano Martinez Peck

Re: CommandShell - linux - missing directory in path

Hi. When I worked a bit with OSProcess I remember I had to set $PATH, but this was on OSX:

"Setup OS Process"

env := OSProcess thisOSProcess environment copy.

path := (env at: #PATH), ':/usr/local/bin/:/usr/bin/'.

env at: #PATH put: path.

Maybe you can try it...

Best,

On Fri, Apr 26, 2013 at 6:30 AM, Camillo Bruni <[hidden email]> wrote:

I can't properly answer your question, and in typical forum behavior
I suggest using a different approach :)

(PipeableOSProcess command: 'ls -l') output

On 2013-04-26, at 10:12, Ingo Hohmann <[hidden email]> wrote:
> Hi all,
>
> as far as I know, NativeBoost does not yet allow starting external
> programs on linux, so I'm trying to use CommandShell.
>
> CommandShell new open; command: 'ls -l' .
>
> And I get an error:
>
> DirectoryDoesNotExist: Path / 'usr' / 'local' / 'sbin'
>
>
> I must admit, that this directory is in $PATH, but is not available on
> disk.
>
> Is there a deeper reason to signal an error in this case, or should this
> be treated as a bug?
>
> (Pharo 2.0)
>
> Kind regards,
>
> Ingo
>

--
Mariano
http://marianopeck.wordpress.com

IngoHohmann

Re: CommandShell - linux - missing directory in path

Hi Mariano,

actually the $PATH is correctly taken from my system settings, it's broken in the system settings.

The idea from Camillo works, as well as changing the $PATH on the system.

The remaining question is: should this be reported as a bug? (I tend to yes)

Thank you,

Ingo

On 04/26/2013 02:44 PM, Mariano Martinez Peck wrote:

Hi. When I worked a bit with OSProcess I remember I had to set $PATH, but this was on OSX:

"Setup OS Process"

env := OSProcess thisOSProcess environment copy.

path := (env at: #PATH), ':/usr/local/bin/:/usr/bin/'.

env at: #PATH put: path.

Maybe you can try it...

Best,

On Fri, Apr 26, 2013 at 6:30 AM, Camillo Bruni <[hidden email]> wrote:

I can't properly answer your question, and in typical forum behavior
I suggest using a different approach :)

(PipeableOSProcess command: 'ls -l') output

On 2013-04-26, at 10:12, Ingo Hohmann <[hidden email]> wrote:
> Hi all,
>
> as far as I know, NativeBoost does not yet allow starting external
> programs on linux, so I'm trying to use CommandShell.
>
> CommandShell new open; command: 'ls -l' .
>
> And I get an error:
>
> DirectoryDoesNotExist: Path / 'usr' / 'local' / 'sbin'
>
>
> I must admit, that this directory is in $PATH, but is not available on
> disk.
>
> Is there a deeper reason to signal an error in this case, or should this
> be treated as a bug?
>
> (Pharo 2.0)
>
> Kind regards,
>
> Ingo
>

--
Mariano
http://marianopeck.wordpress.com

Igor Stasenko

Re: CommandShell - linux - missing directory in path

On 26 April 2013 16:11, Ingo Hohmann <[hidden email]> wrote:
> Hi Mariano,
>
> actually the $PATH is correctly taken from my system settings, it's broken
> in the system settings.
>
> The idea from Camillo works, as well as changing the $PATH on the system.
>
> The remaining question is: should this be reported as a bug? (I tend to yes)
>
bug or feature?
it helped you to detect that your PATH variable contains non-existent
directory.. :)

and while OS shell is quite forgiving, i'm not sure if things we're
using in Pharo
should be also forgiving as well...

so, i don't have strong opinion on it.. but maybe you right, and CommandShell
should behave similar to OS shell (in respect that in cases if OS
shell don't barks, neither CommandShell should).

>
> Thank you,
>
> Ingo
>

--
Best regards,
Igor Stasenko.

Ben Coman

Re: CommandShell - linux - missing directory in path

Igor Stasenko wrote:

> On 26 April 2013 16:11, Ingo Hohmann <[hidden email]> wrote:
>
>> Hi Mariano,
>>
>> actually the $PATH is correctly taken from my system settings, it's broken
>> in the system settings.
>>
>> The idea from Camillo works, as well as changing the $PATH on the system.
>>
>> The remaining question is: should this be reported as a bug? (I tend to yes)
>>
>>
>
> so, i don't have strong opinion on it.. but maybe you right, and CommandShell
> should behave similar to OS shell (in respect that in cases if OS
> shell don't barks, neither CommandShell should).
>
>

It should not deviate unnecessarily from existing conventions. Its not
always good to make it "better" if that conflicts with Principle Of
Least Surprise. A corollary is the McDonalds Burger Principle, its not
the best burger in the world, but it is the same in every store in the
world --> success.

cheers -ben

>> Thank you,
>>
>> Ingo
>>
>>
>
>

Sean P. DeNigris

Re: CommandShell - linux - missing directory in path

Administrator

Ben Coman wrote

the McDonalds Burger Principle

I think you meant "70+ year marketing campaign targeted at small children" -> success. But we get the point ;)

Cheers,
Sean