* feat: Improve experience with local SSH keys
This change means that users can place SSH keys in the default locations
for OpenSSH, like `~/.ssh/id_rsa` and it will be automatically picked
up (as per a default OpenSSH experience).
Fixes#3126
* fix: Ensure gitssh cleans up temporary file on interrupt
Co-authored-by: Dean Sheather <dean@deansheather.com>
* fix: Update GIT_COMMITTER_NAME to use username
This was a mistake when adding the committer fields 🤦.
* fix: Use environment variables for agent authentication
Using files led to situations where running "coder server --dev" would
break `gitssh`. This is applicable in a production environment too. Users
should be able to log into another Coder deployment from their workspace.
Users can still set "CODER_URL" if they'd like with agent env vars!
These values were ignored. Environment variables are applied to
new sessions, and are refreshed on reconnect. This is cool because
a workspace could be updated with new environment variables without
requiring a complete start/stop.
The startup script is only ran once regardless of changes, which
feels like the expected behavior.
