gig - A wrapper script for the gigalixir CLI

gig.sh

#!/bin/zsh
#
# gig
# A wrapper script for the gigalixir CLI
# Dependencies: gigalixir, fzf, jq
# Installation: Make sure dependencies are installed, put this in your $PATH, and chmod +x
# Author: Micah Buckley-Farlee <micah@xlmpq.com>

set -u
set +C

GIG_APPS_FILE="$HOME/.gigalixir-apps.json"
GIG_SELECTED_APP_FILE="$HOME/.gig-selected-app"

export FZF_DEFAULT_OPTS="--height=8 --layout=reverse"

function print_help() {
  echo "Usage: gig [command]"
  echo ""
  echo "Commands:"
  echo "current - show the currently selected app"
  echo "use - change the currently selected app. Optionally takes a search term."
  echo "update - update the list of apps from gigalixir"
  echo ""
  echo "All other commands are executed with the gigalixir utility."
  echo "Run \`gig help\` to see the available commands from gigalixir. "
}

function update_apps_file() {
  >&2 echo "Updating apps from gigalixir..."
  gigalixir apps > "$GIG_APPS_FILE"
  count=$(jq '. | length' < "$GIG_APPS_FILE")
  >&2 echo "Found $count apps."
}

function update_apps_file_if_stale() {
  if [[ ! -f "$GIG_APPS_FILE" ]]; then
    update_apps_file
    return
  fi

  # update if over 1 hour old
  if [[ -z $(find "$GIG_APPS_FILE" -mmin -59) ]]; then
    update_apps_file
  fi
}

function current_app() {
  if [[ -f "$GIG_SELECTED_APP_FILE" ]]; then
    cat "$GIG_SELECTED_APP_FILE"
  fi
}

function list_apps() {
  jq -r '.[].unique_name' < "$GIG_APPS_FILE"
}

function choose_app() {
  local selected_app

  update_apps_file_if_stale
  selected_app=$(list_apps | fzf -q "$1" -1)

  if [[ -z "$selected_app" ]]; then
    >&2 echo "App unchanged, using $(current_app)"
  else
    echo "$selected_app" > "$GIG_SELECTED_APP_FILE"
    >&2 echo "Using $selected_app"
  fi
}

function check_app_valid() {
  local current
  current="$(current_app)"

  if [[ -z "$current" ]]; then
    return 1
  fi

  list_apps | grep "$current"
}

function proxy_command_with_app() {
  if [[ ! check_app_valid ]]; then
    choose_app
  fi

  gigalixir "$1" -a "$(current_app)" $*[2,-1]
}

case "$1" in
  # show the gig help
  -h)
    print_help
    ;;

  # gig commands to view and change apps
  current)
    current_app
    ;;
  use)
    choose_app "${2-}"
    ;;
  update)
    update_apps_file
    ;;

  # gigalixir commands that don't take an app
  account*) ;&
  apps) ;&
  apps:create) ;&
  help) ;&
  login) ;&
  logout) ;&
  signup) ;&
  version)
    gigalixir $*
    ;;

  # proxy to gigalixir with -a $current_app
  *)
    proxy_command_with_app $*
    ;;
esac