[BUG]: eval "$(gh copilot alias -- bash)" takes 0.5 second to load

[yermulnik]

What happened?

What did you do? What happened? What did you expect to happen?

eval "$(gh copilot alias -- bash)" took 0.5 sec to load (I'm the "User is not authorized to use this Copilot feature"). I'd expect it to load much faster as 0.5 sec is a way too slow.

Versions

What versions of the relevant software are you running?
For example: gh v2.37.0, gh-copilot v0.5.2-beta

• gh version 2.52.0 (2024-06-24)
• version 1.0.3 (2024-05-08)

Relevant terminal output

Please copy and paste any relevant terminal output.
Please check your output before submission to ensure sensitive information is redacted.

> time eval "$(gh copilot alias -- bash)"

real    0m0,611s
user    0m0,210s
sys     0m0,053s

and another workstation:

> time eval "$(gh copilot alias -- bash)"

real    0m0,548s
user    0m0,156s
sys     0m0,037s

Ubuntu and Mint if it matters.

[jarrodldavis]

I have the same issue using eval "$(gh copilot alias -- zsh)" on macOS. Strangely, the entire script to be evaluated is emitted instantly, it's just that the gh command takes a long time to exit.

[BagToad]

I suspect this actually has more to do with gh startup time than the gh-copilot extension - see cli/cli#9724

@yermulnik @jarrodldavis, could you try setting TCELL_MINIMIZE=1 and let us know if that improves the performance?

[jarrodldavis]

@BagToad That helped performance a bit, but only reduced from 0.11s to 0.07s (according to time). As I noted initially, the issue is after the script is emitted, suggesting that it's an issue with the exit time, not the startup time. Additionally, I notice this slow exit consistently across all gh copilot commands (even gh copilot --help), but the root gh command is fast.

[yermulnik]

> export TCELL_MINIMIZE=1
> time eval "$(gh copilot alias -- bash)"

real    0m1,250s
user    0m0,167s
sys     0m0,080s

# second run
> time eval "$(gh copilot alias -- bash)"

real    0m1,116s
user    0m0,120s
sys     0m0,037s

🤔

[BagToad]

Ah, thanks for trying that out! Sounds like we have more investigating to do 😁

[pmeheut]

Same problem here and even slower in my good old Macpro: 1.7 sec. Ok, it is only a 12 core 3.3 Ghz Xeon but still: nothing it that slow.

In the meantime, I've decided to cache it each day, commenting the line out and adding this to my .bashrc:

# Define the path to the .ghrc file
GHRC_PATH="$HOME/.ghrc"

# Check if the file exists and is older than 1 day
if [[ ! -f "$GHRC_PATH" || $(find "$GHRC_PATH" -mtime +0 -print) ]]; then
  echo "Updating .ghrc file..."
  gh copilot alias -- bash > "$GHRC_PATH"
fi

# Evaluate the content of the .ghrc file
if [[ -f "$GHRC_PATH" ]]; then
  echo "Evaluating .ghrc file..."
  source "$GHRC_PATH"
else
  echo "Error: .ghrc file not found after update."
  exit 1
fi

[GriwMF]

Have the same issue with bash in Arch under wsl

~ $ time eval "$(gh copilot alias -- bash)"

real    0m1.267s
user    0m0.052s
sys     0m0.040s

~ $ export TCELL_MINIMIZE=1
~ $ time eval "$(gh copilot alias -- bash)"

real    0m1.253s
user    0m0.075s
sys     0m0.028s
~ $

As a temporary fix I did
gh copilot alias -- bash > .bash_copilot_aliases
and then loaded it in my .bashrc

# load .bash_copilot_aliases if it exists
if [ -f ~/.bash_copilot_aliases ]; then
    . ~/.bash_copilot_aliases
fi