Patch zplug locally with pull requests not yet approved

zplug-patch.zsh

#!/usr/bin/env zsh
# Install zplug if not installed, and patch it locally by merging pull requests by id.

PULL_REQUEST_IDS="$@"

run_remote_zsh_script() {
    local url="$1"
    shift
    curl -sL --proto-redir -all,https "$url" | zsh -s "$@"
}

prompt_zplug_install() {
    if read -q "should_install?Should I try to install it there for you using the zplug_installer? "; then
        echo
        run_remote_zsh_script 'https://raw.githubusercontent.com/zplug/installer/master/installer.zsh'

    else
        echo "Please make sure \$ZPLUG_HOME points to a zplug installation that was cloned from github. Then run this script again."
        exit 1
    fi
}

patch_locally() {
    local url='https://gist.githubusercontent.com/DanielSchetritt/5da5ab148d088ab4d8087bfb99875178/raw/ghpr-merge.zsh'
    echo "Attempting to patch zplug using \`ZPLUG_HOME=$ZPLUG_HOME'"
    run_remote_zsh_script "$url" "$ZPLUG_HOME" "$PULL_REQUEST_IDS"
    local exit_code="$?"
    [[ "$exit_code" -eq "0" ]] \
        && echo "Successfully patched local zplug installation with PRs \`$PULL_REQUEST_IDS'" \
        && echo "Don't forget to source ~/.zshrc or restart your terminal"
    return "$exit_code"
}

patch_locally
exit_code="$?"
should_check_zplug_installation="1"
if (( exit_code = should_check_zplug_installation )) && [[ -n "$PULL_REQUESTS_IDS" ]]; then
    echo "Could not find a zplug installation in \`$ZPLUG_HOME' that was cloned from github" \
        && install_zplug \
        && patch_locally
fi