Re: [Modules] How to set-env with multi line content

[Byron B. <byr...@pr...>]

Perfect! I’ll give that a try! Thank you, Xavier and Paul.

Byron Boulton

On Tue, Dec 3, 2024 at 10:25 PM, Xavier Delaruelle <[xav...@gm...](mailto:On Tue, Dec 3, 2024 at 10:25 PM, Xavier Delaruelle <<a href=)> wrote:

> The full module may look like:
>
> #%Module
> if {[module-info mode load]} {
> switch -- [module-info shelltype] {
> sh {puts stdout "FOO='my\nmulti\nline\nvalue'; export FOO;"}
> }
> } elseif {[module-info mode unload]} {
> unsetenv --unset-on-unload FOO
> }
>
> Regards,
> Xavier
>
> Le mar. 3 déc. 2024 à 23:53, Paul Markfort <pau...@gm...> a écrit :
>>
>>
>> A little complicatesd; but, you should be able to figure this out for yourself:
>>
>> Read the MAN page for modulefile
>> man modulefile
>>
>> The section you want is about module-info
>>
>> Specifically this:
>> module-info mode [modetype]
>>
>>
>> The if statement is similar to the way I used module-info shell
>> You might put this new test inside the module-info shell test (or maybe outside, depending on what you want).
>>
>> You need to decide which module modes need an action - and what action you want for each.
>>
>> Obviously, for the "load" mode you want the puts statement.
>>
>>
>> On 2024-12-03 4:33 PM, Byron Boulton via Modules-interest wrote:
>> > Oh good point. I think people on our system are only using modules with bash and maybe zsh, but I should wrap it.
>> >
>> > Any idea if I can put something in the module file to undo setting the environment variable when someone runs “ml unload”?
>> >
>> > Byron Boulton
>> >
>> > Sent from [Proton Mail](https://proton.me/mail/home) for iOS
>> >
>> > On Tue, Dec 3, 2024 at 4:13 PM, Paul Markfort <[pau...@gm...](mailto:On Tue, Dec 3, 2024 at 4:13 PM, Paul Markfort <<a href=)> wrote:
>> >
>> >> You might want to surround that code to make sure it is only run for bash.
>> >>
>> >> if { [module-info shell bash] } {
>> >> puts stdout "export FOO='my\nmulti\nline\nvalue';"
>> >> }
>> >>
>> >> Note:
>> >> The real sh (bourne shell) doesn't allow export to set values inline.
>> >> However, on linux, sh is actually bash (usually).
>> >>
>> >> On 2024-12-03 1:59 PM, Xavier Delaruelle wrote:
>> >>> Hello Byron,
>> >>>
>> >>> Setting a multi-line value to an environment variable with "setenv" is
>> >>> not possible with current version of Modules. I will look at
>> >>> implementing such feature.
>> >>>
>> >>> As a workaround, you may use the "puts" command to craft the shell
>> >>> command to define variable with such specific value:
>> >>>
>> >>> #%Module
>> >>> puts stdout "export FOO='my\nmulti\nline\nvalue';"
>> >>>
>> >>> Regards,
>> >>> Xavier
>> >>>
>> >>> Le mar. 3 déc. 2024 à 15:16, Byron Boulton via Modules-interest
>> >>> <mod...@li...> a écrit :
>> >>>>
>> >>>> I need to set-env a variable with contents from a file. In bash I can do this with
>> >>>>
>> >>>> export FOO="$(cat /home/username/foofile.dat)"
>> >>>>
>> >>>> So far I tried various permutations like
>> >>>>
>> >>>> set fp [open "/home/username/foofile.dat"]
>> >>>> set file_data [read $fp]
>> >>>> close $fp
>> >>>> set-env FOO "$file_data"
>> >>>>
>> >>>> But I always end up with a “command not found” message from bash trying to evaluate the second line of the file. This shows me that the module load must outputting a string to bash that is only setting the first line of the file to the variable FOO, then the subsequent file lines are getting dropped right to bash to evaluate.
>> >>>>
>> >>>> Does anyone have ideas on how I can set a multiline variable from the contents of a file?
>> >>>>
>> >>>> (Some keywords for future searchability in the archives: multiline, multi-line, newline)
>> >>>>
>> >>>> Byron
>> >>>
>> >>>
>> >>> _______________________________________________
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>> >>> Mod...@li...
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>> >>>
>> >>
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>> The views and opinions expressed above are strictly
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>> not been reviewed nor approved by any entity whatsoever.
>> --------------------------------------------------------
>> Paul FM Info: http://paulfm.com/~paulfm/
>> --------------------------------------------------------
>>
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