Setting locale failed when configuring a snap polluting the config output

[XiaoGuo, Liu]

I tried to install a snap config-example from Snappy store by running the following command:

(amd64)ubuntu@localhost:~$ sudo snappy install config-example

Then, I am trying to config the example by having the following commands:

(amd64)ubuntu@localhost:~$ cat > cfg.yaml <<'EOF'
> config:
> config-example:
> msg: |
> Yay!
> EOF
(amd64)ubuntu@localhost:~$ vi cfg.yaml
(amd64)ubuntu@localhost:~$ ls
apps cfg.yaml
(amd64)ubuntu@localhost:~$ sudo snappy config config-example cfg.yaml
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
 LANGUAGE = (unset),
 LC_ALL = (unset),
 LC_TELEPHONE = "zh_CN.UTF-8",
 LC_IDENTIFICATION = "zh_CN.UTF-8",
 LC_MONETARY = "zh_CN.UTF-8",
 LC_NAME = "zh_CN.UTF-8",
 LC_ADDRESS = "zh_CN.UTF-8",
 LC_MEASUREMENT = "zh_CN.UTF-8",
 LC_NUMERIC = "zh_CN.UTF-8",
 LC_TIME = "zh_CN.UTF-8",
 LC_PAPER = "zh_CN.UTF-8",
 LANG = "C.UTF-8"
    are supported and installed on your system.
perl: warning: Falling back to a fallback locale ("C.UTF-8").
config:
  config-example:
    msg: 'Yay!

      '
I get Setting locale failed error. What is the problem for it?

Thanks & best regards,
XiaoGuo

[Michael Vogt (mvo)]

This is indeed an issue especially since it appears that perl is outputing these warning on stdout and not on stderr :/

As a workaround:
  $ LC_ALL=C.UTF-8 LANGUAGE=en ssh -p 8022 ubuntu@localhost
can be used.

[Stuart Bishop (stub)]

I also find I need to set the LOCPATH environment variable (this with the locales-all package in stage packages):

stub@uurp:/home/stub$ locale
locale: Cannot set LC_CTYPE to default locale: No such file or directory
locale: Cannot set LC_MESSAGES to default locale: No such file or directory
locale: Cannot set LC_ALL to default locale: No such file or directory
LANG=en_AU.UTF-8
LANGUAGE=en_AU:en_GB:en_US:en
LC_CTYPE="en_AU.UTF-8"
LC_NUMERIC=en_AU.UTF-8
LC_TIME=en_AU.UTF-8
LC_COLLATE="en_AU.UTF-8"
LC_MONETARY=en_AU.UTF-8
LC_MESSAGES="en_AU.UTF-8"
LC_PAPER=en_AU.UTF-8
LC_NAME=en_AU.UTF-8
LC_ADDRESS=en_AU.UTF-8
LC_TELEPHONE=en_AU.UTF-8
LC_MEASUREMENT=en_AU.UTF-8
LC_IDENTIFICATION=en_AU.UTF-8
LC_ALL=
stub@uurp:/home/stub$ export LOCPATH=$SNAP/usr/lib/locale
stub@uurp:/home/stub$ locale
LANG=en_AU.UTF-8
LANGUAGE=en_AU:en_GB:en_US:en
LC_CTYPE="en_AU.UTF-8"
LC_NUMERIC=en_AU.UTF-8
LC_TIME=en_AU.UTF-8
LC_COLLATE="en_AU.UTF-8"
LC_MONETARY=en_AU.UTF-8
LC_MESSAGES="en_AU.UTF-8"
LC_PAPER=en_AU.UTF-8
LC_NAME=en_AU.UTF-8
LC_ADDRESS=en_AU.UTF-8
LC_TELEPHONE=en_AU.UTF-8
LC_MEASUREMENT=en_AU.UTF-8
LC_IDENTIFICATION=en_AU.UTF-8
LC_ALL=

stub@uurp:/home/stub$ LC_ALL=zh_TW.utf8 locale
LANG=en_AU.UTF-8
LANGUAGE=en_AU:en_GB:en_US:en
LC_CTYPE="zh_TW.utf8"
LC_NUMERIC="zh_TW.utf8"
LC_TIME="zh_TW.utf8"
LC_COLLATE="zh_TW.utf8"
LC_MONETARY="zh_TW.utf8"
LC_MESSAGES="zh_TW.utf8"
LC_PAPER="zh_TW.utf8"
LC_NAME="zh_TW.utf8"
LC_ADDRESS="zh_TW.utf8"
LC_TELEPHONE="zh_TW.utf8"
LC_MEASUREMENT="zh_TW.utf8"
LC_IDENTIFICATION="zh_TW.utf8"
LC_ALL=zh_TW.utf8