Fix Github Copilot in dealing with self-signed certificates

fix_github_copilot.sh

# [2023-05-25] Added Copilot Chat, and VSCode Insiders
# [2023-05-20] Add VSCode Insiders variant
# [2023-02-22] Added Copilot Labs

# Fix Github Co-pilot self-signed cert problem
# See: https://github.com/orgs/community/discussions/8866#discussioncomment-3517831

# Note
#
# To make Github Copilot/Nightly/Labs/Chat work, you might need additional
# steps.
# ----------------------------------------------
# - The bash script is solid. Keep the fixing command run on shell start.
# - Sign out of github from vscode, lower left corner. Ref:
#   https://docs.github.com/en/copilot/troubleshooting-github-copilot/troubleshooting-common-issues-with-github-copilot#error-github-copilot-could-not-connect-to-server-extension-activation-failed
# - Reload window, sign back in, make sure you're using the Chrome window with
#   the right profile (with which you're logged in to the right account), reload
#   window
# - Check VSCode Output pane
# - if EAI_AGAIN error happens, in particular under WSL, this worked:
#   - sudo sh -c "echo nameserver 8.8.8.8 > /etc/resolv.conf"
#   - Ref: https://github.com/community/community/discussions/19499#discussioncomment-5026421
# - As for Labs/Chat, check their webpage, there might be a waiting list, or
#   terms to accept before you get access. The error message in the Output pane
#   should give you a hint about it.
fix_github_copilot() {
    local silent_mode=$1

    apply_patch() {
        local vscode_dir=$1
        local regex_pattern=$2
        local extension_name=$3
        local extensions_path="$HOME/${vscode_dir}/extensions"
        local copilot_dir=$(ls "${extensions_path}" | grep -E "${regex_pattern}" | sort -V | tail -n1) || return
        local extension_filepath="${extensions_path}/${copilot_dir}/dist/extension.js"

        if [[ -f "$extension_filepath" ]]; then
            if [[ $silent_mode != 'silent' ]]; then
                echo "Found $extension_name extension, applying 'rejectUnauthorized' patches to '$extension_filepath'"
            fi
            perl -pi -e 's/,rejectUnauthorized:[a-z]}(?!})/,rejectUnauthorized:false}/g' ${extension_filepath} || echo "Perl patch failed"
            sed -i.bak 's/d={...l,/d={...l,rejectUnauthorized:false,/g' ${extension_filepath} || echo "Sed patch failed"
        fi
    }

    perform_fix() {
        if [[ -d "$HOME/$1" ]]; then
            apply_patch "$1" "github.copilot-[0-9].*" "Copilot"
            apply_patch "$1" "github.copilot-nightly-[0-9].*" "Copilot Nightly"
            apply_patch "$1" "github.copilot-labs-[0-9].*" "Copilot Labs"
            apply_patch "$1" "github.copilot-chat-[0-9].*" "Copilot Chat"
        fi
    }

    perform_fix ".vscode"
    perform_fix ".vscode-server"
    perform_fix ".vscode-insiders"
    perform_fix ".vscode-server-insiders"

    unset -f apply_patch
    unset -f perform_fix
}

fix_github_copilot silent