How LANG environment variable is set?

How LANG environment variable is set?

[Angelo Graziosi]

I remember that some time ago I had, in mintty,

$ echo $LANG
it_IT.UTF-8

Now LANG is empty ('echo $LANG' prints nothing).

I notice that /etc/profile.d has lang.sh which should set LANG when I 
start mintty. That script contains

test -z "${LC_ALL:-${LC_CTYPE:-$LANG}}" && export LANG=$(/usr/bin/locale 
-uU)

and at command line, '/usr/bin/locale -uU' prints it_IT.UTF-8...


If I start mintty (LANG empty) and the copy/paste the above lang.sh 
line, after an <ENTER> I get

$ echo $LANG
it_IT.UTF-8

It is as if the script was not executed... or not? but surely I am 
missing something..


Ciao,
  Angelo.

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Re: How LANG environment variable is set?

[Larry Hall (Cygwin)]

On 04/24/2014 05:13 PM, Angelo Graziosi wrote:
> I remember that some time ago I had, in mintty,
>
> $ echo $LANG
> it_IT.UTF-8
>
> Now LANG is empty ('echo $LANG' prints nothing).
>
> I notice that /etc/profile.d has lang.sh which should set LANG when I start
> mintty. That script contains
>
> test -z "${LC_ALL:-${LC_CTYPE:-$LANG}}" && export LANG=$(/usr/bin/locale -uU)
>
> and at command line, '/usr/bin/locale -uU' prints it_IT.UTF-8...
>
>
> If I start mintty (LANG empty) and the copy/paste the above lang.sh line,
> after an <ENTER> I get
>
> $ echo $LANG
> it_IT.UTF-8
>
> It is as if the script was not executed... or not? but surely I am missing
> something..

WJFFM.  What's the shell you're running?  Are you setting the local and/or
character set in mintty itself?  Is '/etc/profile' or any of the other
profile scripts being run?  Perhaps cygcheck output would help if you can't
find out where things are going awry.

-- 
Larry

_____________________________________________________________________

A: Yes.
 > Q: Are you sure?
 >> A: Because it reverses the logical flow of conversation.
 >>> Q: Why is top posting annoying in email?

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Re: How LANG environment variable is set?

[David Rothenberger]

Angelo Graziosi wrote:
> I remember that some time ago I had, in mintty,
> 
> $ echo $LANG
> it_IT.UTF-8
> 
> Now LANG is empty ('echo $LANG' prints nothing).
> 
> I notice that /etc/profile.d has lang.sh which should set LANG when I
> start mintty. That script contains
> 
> test -z "${LC_ALL:-${LC_CTYPE:-$LANG}}" && export LANG=$(/usr/bin/locale -uU)
> 
> and at command line, '/usr/bin/locale -uU' prints it_IT.UTF-8...

It looks like /etc/profile sets LC_ALL=C before running the scripts
in /etc/profile.d, then restores it to its original setting. This
prevents LANG getting set by lang.sh.

-- 
David Rothenberger  ----  daveroth@acm.org

"It's what you learn after you know it all that counts."
                -- John Wooden

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Re: How LANG environment variable is set?

[Larry Hall (Cygwin)]

On 04/24/2014 05:56 PM, David Rothenberger wrote:
> Angelo Graziosi wrote:
>> I remember that some time ago I had, in mintty,
>>
>> $ echo $LANG
>> it_IT.UTF-8
>>
>> Now LANG is empty ('echo $LANG' prints nothing).
>>
>> I notice that /etc/profile.d has lang.sh which should set LANG when I
>> start mintty. That script contains
>>
>> test -z "${LC_ALL:-${LC_CTYPE:-$LANG}}" && export LANG=$(/usr/bin/locale -uU)
>>
>> and at command line, '/usr/bin/locale -uU' prints it_IT.UTF-8...
>
> It looks like /etc/profile sets LC_ALL=C before running the scripts
> in /etc/profile.d, then restores it to its original setting. This
> prevents LANG getting set by lang.sh.
>

Good catch.  Yes, the latest version of base_files makes this change to
the profile_d() function.  Looks like the easiest interim solution is to
downgrade to base_files-4.1-2.

-- 
Larry

_____________________________________________________________________

A: Yes.
 > Q: Are you sure?
 >> A: Because it reverses the logical flow of conversation.
 >>> Q: Why is top posting annoying in email?

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Re: How LANG environment variable is set?

[Achim Gratz]

Larry Hall (Cygwin <reply-to-list-only-lh <at> cygwin.com> writes:
> Good catch.  Yes, the latest version of base_files makes this change to
> the profile_d() function.  Looks like the easiest interim solution is to
> downgrade to base_files-4.1-2.

The easiest interim solution is probably to unset LC_ALL or revert to
_LC_SAVE_ if set in lang.sh -- I'll have to think about this some more, but
that's probably the solution I'll use for the bugfix release as well (I
should manage to get it out over the weekend).

See http://cygwin.com/ml/cygwin/2012-08/msg00489.html and the discussion
leading up to it.  This just goes to show that nobody tested the test
version that was out there for almost two years.


Regards,
Achim.




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Re: How LANG environment variable is set?

[Andrey Repin]

Greetings, Larry Hall (Cygwin)!

>> It looks like /etc/profile sets LC_ALL=C before running the scripts
>> in /etc/profile.d, then restores it to its original setting. This
>> prevents LANG getting set by lang.sh.
>>

> Good catch.  Yes, the latest version of base_files makes this change to
> the profile_d() function.  Looks like the easiest interim solution is to
> downgrade to base_files-4.1-2.

Actually, it might help to set LANG in user's profile instead.
I have this bit of code, working quite well:

case "$TERM" in
  xterm*)
    LANG=ru_RU.UTF-8
    ;;
  *)
    LANG=ru_RU.CP866
    ;;
esac

(mintty sets "xterm", so does xterm itself and other shells I connect to this
system with.)


--
WBR,
Andrey Repin (anrdaemon@yandex.ru) 26.04.2014, <03:11>

Sorry for my terrible english...


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Re: How LANG environment variable is set?

[Angelo Graziosi]

David Rothenberger wrote:
> It looks like /etc/profile sets LC_ALL=C before running the scripts
> in /etc/profile.d, then restores it to its original setting. This
> prevents LANG getting set by lang.sh.

The statement LC_ALL=C has been introduced in /et/profile with the 
recent upgrade of base-file 4.2 (and indeed I was sure with base-fle 4.1 
LANG was correctly set..)

So, is this how things should work or we have caught a bug in the new 
base-file 4.2 release?


Ciao,
Angelo.

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