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Can gitlab-shell make GitLab's username available to hook's shell environment ?

Description

I understand the environment variable, GL_ID, is made available for the custom hooks to identify the user who performes a 'git push'. GL_ID has the key-id value that corresponds to the record of the user's SSH public key in the authorised_keys file.

Below will one of the approaches to identify the user who is interacting with the Git Repository.

  1. Fetch the public key that corresponds to the key-id valud in the environment variable, GL_ID from the authorised_keys file
  2. Get list of all SSH public keys stored in GitLab's user profiles through API
  3. Match the public key from authorised_keys file to the list of SSH public keys from GitLab to identify GitLab user record

Or is there a better way of identifing a user who is doing the 'git push' ?

Proposal

Can gitlab-shell make GitLab's username available to hook's shell environment ? It'll be far easier for custom hooks to fetch the user name instead of the round-about way described above. As, GL_ID has the key-id that corresponds to the ssh key in authorised_keys file, I might suggest a new environment variable for this purpose.

Links / references

https://groups.google.com/forum/#!topic/gitlabhq/ht_0G6JcHOc