couldn't find HOME environment

[anlek]

Hey, great work with this gem, however I'm having an issue when deploying it in Production (Ubuntu 14.04). I'm getting:

lib/image_optim/config.rb:13:in `expand_path': couldn't find HOME environment -- expanding `~' (ArgumentError)

My user does have a home directory and when I run console, I get this:

irb(main):002:0> ENV["HOME"]
=> "/home/deployer"
irb(main):003:0> File.expand_path("~")
=> "/home/deployer"

Not sure what's happening.

[anlek]

I even tried settting XDG_CONFIG_HOME but still same error.

[anlek]

I was able to fix it by changing like 13:
from:

CONFIG_HOME = File.expand_path(ENV['XDG_CONFIG_HOME'] || '~/.config')

to:

CONFIG_HOME = File.expand_path(ENV['XDG_CONFIG_HOME'] || "#{ENV["HOME"]}/.config")

[toy]

Hi Andrew.
You did not specify which stack do you use. It can be the same issue as explained at lsegal/yard#708.

Exception tells that you don't have HOME variable defined, so ENV['HOME'] is nil and "#{ENV["HOME"]}/.config" will expand to '/.config'.

Try following in console (it should raise the same exception):

ENV.delete('HOME')
File.expand_path('~')

And try to log value of ENV['HOME'] in production environment.

[anlek]

I'm using Rails 4.1.5 and Ruby 2.1.2
The problem is that when I go into rails c -e production and run ENV["HOME"] I still get the home directory.

[toy]

If you run rails c -e production from login session ruby will get HOME variable.
Under which user does rails run in production? Does that user have a home directory?

I understood the problem and I assume that it should be harmless to ignore exception when finding home/config directory, probably better to show warning.

[anlek]

I agree, a warning would be great, but at the moment, I just need it to work.

My script that runs it (under /etc/init.d/unicorn_app) starts with:

CMD="cd /data/web/my_site/production/current; bundle exec unicorn -D -c /data/web/my_site/production/shared/config/unicorn.rb -E production"
AS_USER=deployer
set -u
# ....other settings...
# ...call to CMD if start has been called

CMD is the actual command that gets called when it starts...

[toy]

CMD="cd /data/web/my_site/production/current; env HOME=/dev/null bundle exec unicorn -D -c /data/web/my_site/production/shared/config/unicorn.rb -E production"

[anlek]

I'll update my script to reflect your recommendation.
Would that mean that I can't use the config folder?

[toy]

Does deployer have a home folder: echo ~deployer
You can set HOME to any path, but if you use /dev/null there will be no way for image_optim global config.

[toy]

@anlek Please confirm that master fixes this issue for you, you should see a warning with «couldn't find HOME environment».

[toy]

@anlek Please reopen if needed.