encoding in shell-command and subshell

encoding in shell-command and subshell

[Jean-Christophe Helary]

When I run shell-command with javac on a class that contains non ASCII charaters, I get garbage.

When I open the subshell and run the same command inside it, it picks by Java encoding environment declaration (.profile):

export JAVA_TOOL_OPTIONS=-Dfile.encoding=UTF8

and works without problems.

The workaround is that I have to declare the encoding in the shell-command.

Why is that ? Is there a way to have the subshell from shell-command pick my environment variables ?

-- 
Jean-Christophe Helary @brandelune
https://mac4translators.blogspot.com
https://sr.ht/~brandelune/omegat-as-a-book/

Re: encoding in shell-command and subshell

[Dante Catalfamo]

How are you launching Emacs? It's possible the environment variables 
aren't defined when Emacs is launched. I know this is a problem on MacOS 
or when you launch it using something like systemd.

The `exec-path-from-shell' package will probably solve the problem for 
you. It opens a shell and pulls all the environment variables from it.

On 8/23/21 7:01 AM, Jean-Christophe Helary wrote:
> When I run shell-command with javac on a class that contains non ASCII charaters, I get garbage.
> 
> When I open the subshell and run the same command inside it, it picks by Java encoding environment declaration (.profile):
> 
> export JAVA_TOOL_OPTIONS=-Dfile.encoding=UTF8
> 
> and works without problems.
> 
> The workaround is that I have to declare the encoding in the shell-command.
> 
> Why is that ? Is there a way to have the subshell from shell-command pick my environment variables ?
> 

Re: encoding in shell-command and subshell

[Jean-Christophe Helary]

> On Aug 24, 2021, at 8:09, Dante Catalfamo <dante@lambda.cx> wrote:
> 
> How are you launching Emacs? It's possible the environment variables aren't defined when Emacs is launched. I know this is a problem on MacOS or when you launch it using something like systemd.
> 
> The `exec-path-from-shell' package will probably solve the problem for you. It opens a shell and pulls all the environment variables from it.

Thank you Dante for the reply.

I use Emacs.app on macOS, that I regularly build from master. I've been using exec-path-from-shell for as far as I can remember (but I do have a relatively short memory span...)

And that would not explain the discrepancy between (shell-command "javac ...") and M-! javac ...

> On 8/23/21 7:01 AM, Jean-Christophe Helary wrote:
>> When I run shell-command with javac on a class that contains non ASCII charaters, I get garbage.
>> When I open the subshell and run the same command inside it, it picks by Java encoding environment declaration (.profile):
>> export JAVA_TOOL_OPTIONS=-Dfile.encoding=UTF8
>> and works without problems.
>> The workaround is that I have to declare the encoding in the shell-command.
>> Why is that ? Is there a way to have the subshell from shell-command pick my environment variables ?


-- 
Jean-Christophe Helary @brandelune
https://mac4translators.blogspot.com
https://sr.ht/~brandelune/omegat-as-a-book/