get the group information from an environment variable

[xmnlab]

We need a way to get the group information from an environment variable, so user don't need to specify the --group in the CLI.

if the group information is not specified, the --group in the CLI would be mandatory.

Idea:

The default environment variable for that would be: SUGAR_GROUP_NAME but the user can specify a custom environment variable name, for example:

version: 1.0.0
config:
  env:
    SUGAR_GROUP_NAME: ENV

it looks bit extensive/verbose in this way .. but it would be easy to extend for other custom configuration in the future

[xmnlab]

additionally, if the corresponding environment variable is present (the default or the custom one), it should be displayed in the help text as an information, something like:

Note: Default services' group: <the value from the environment variable>

[github-actions[bot]]

:tada: This issue has been resolved in version 1.7.0 :tada:

The release is available on:

• 1.7.0
• GitHub release

Your semantic-release bot :package::rocket: