set an environment variable of the last recorded cast, make it the default for play

[tacman]

I love that I can set the filename to a template. Since that's not available in the .toml file, I set up my environment so that I can record without typing it in.

export CIINE_PATH=~/g/sites/showcase/casts/${PWD##*/}/$(date '+%s').cast
asciinema rec $CIINE_PATH

Eventually I'll put that into .bashrc so that I can begin recording with

rec "the title of my cast"

And now in rc5, I get the name of the file written when the session ends.

exit
asciinema: recording finished
asciinema: asciicast saved to /home/tac/g/sites/showcase/casts/kpa/1751806679.cast

At this point, I often do one of the following:

• Play the cast back (usually with --speed=2 -i 0.5)
• Delete the cast
• Run a custom script that tweaks the markers based on an analysis of the "o" output command
• etc.

I'd like to have the name of the most recently recorded file in an environment variable, so that I don't need to type it. E.g.

asciinema play $LAST_ASCIINEMA_FILENAME
asciinema play  # defaults to the above if set
vim $LAST_ASCIINEMA_FILENAME
rm $LAST_ASCIINEMA_FILENAME  
bin/console my:script $LAST_ASCIINEMA_FILENAME
bin/console my:script # my script can read the env var and act on it>

This feature would be really useful for me. Right now, in my script I'm reading my $CIINE_PATH variable and getting the directory and then looking for the most recently written file. That feels hacky.

Thanks for your consideration.

export CIINE_PATH=~/g/sites/showcase/casts/${PWD##*/}/$(date '+%s').cast
asciinema rec $CIINE_PATH
asciinema: recording asciicast to /home/tac/g/sites/showcase/casts/kpa/1751806679.cast
asciinema: press <ctrl-d> or type "exit" when you're done
~/g/sites/kpa$ ls
app.json                   bin         composer.json        config          data                         docker-compose.yaml  features         heroku-nginx.conf  migrations         phpstan.neon      Procfile   rector.php    templates     var
assets                     c           composer.lock        coverage        docker                       Dockerfile.orig      fpm_custom.conf  importmap.php      nginx.conf         phpunit.xml.dist  public     src           tests         vendor
best-friends-credits.xlsx  castor.php  composer-unused.php  crawldata.json  docker-compose.override.yml  env.txt              gitignore.txt    kpa.db             phpstan.dist.neon  post-install.txt  README.md  symfony.lock  translations
~/g/sites/kpa$ 
exit
asciinema: recording finished
asciinema: asciicast saved to /home/tac/g/sites/showcase/casts/kpa/1751806679.cast
~/g/sites/kpa$ 

Feature request:

echo $LAST_ASCIINEMA_FILENAME
/home/tac/g/sites/showcase/casts/kpa/1751806679.cast

[tacman]

Oops. My logic doesn't work.

export CIINE_PATH=~/g/sites/showcase/casts/${PWD##*/}/$(date '+%s').cast

is set to an actual path, not to a template, which is what I want.

If I put it in the CLI when I start the session, it works as expected.

I've added this to my .bashrc file:

# .bashrc
rec() { asciinema rec ~/g/sites/showcase/casts/${PWD##*/}/$(date '+%s').cast --title=$1; }