[GH-ISSUE #222] asciicast v2: environment variable capture spec #779

New issue

Closed

opened 2026-03-15 10:23:00 +03:00 by kerem · 1 comment

kerem commented

2026-03-15 10:23:00 +03:00

Owner

Originally created by @ku1ik on GitHub (Sep 4, 2017).
Original GitHub issue: https://github.com/asciinema/asciinema/issues/222

As mentioned here https://github.com/asciinema/asciinema/pull/196#issuecomment-288148352 the set of environment variables saved by asciinema rec in env map should be defined/controlled.

What could work is to have a white-list of env variables saved under env key in the recording header. It could default to SHELL,TERM and you could override it either via command line switch when recording or via config file option.

Having this, if you also want to save $USER, $HOSTNAME and $CUSTOM_STUFF you could set the white-list to for SHELL,TERM,USER,HOSTNAME,CUSTOM_STUFF and have all the information that's useful to you.

Originally created by @ku1ik on GitHub (Sep 4, 2017). Original GitHub issue: https://github.com/asciinema/asciinema/issues/222 As mentioned here https://github.com/asciinema/asciinema/pull/196#issuecomment-288148352 the set of environment variables saved by `asciinema rec` in `env` map should be defined/controlled. What could work is to have a white-list of env variables saved under `env` key in the recording header. It could default to `SHELL,TERM` and you could override it either via command line switch when recording or via config file option. Having this, if you also want to save `$USER`, `$HOSTNAME` and `$CUSTOM_STUFF` you could set the white-list to for `SHELL,TERM,USER,HOSTNAME,CUSTOM_STUFF` and have all the information that's useful to you.

kerem closed this issue

2026-03-15 10:23:05 +03:00

kerem commented

2026-03-15 10:23:11 +03:00

Author

Owner

@ku1ik commented on GitHub (Sep 16, 2017):

This has been implemented in #230 and will be released with the upcoming asciinema 2.0.

@ku1ik commented on GitHub (Sep 16, 2017): This has been implemented in #230 and will be released with the upcoming asciinema 2.0.