dfx-start-join

#!/usr/bin/env bash
set -euo pipefail

: Move to the repo root, assuming this is installed at ./scripts/dfx-start-join
cd "$(dirname "$(realpath "$0")")/.."

help_text() {
	cat <<-EOF

	Joins an existing locally running dfx server.

	Polyfill for: `dfx start --join`

	Flags:
	--help
	  Prints this help text and exits.

	EOF
}


while (($# > 0)); do
  arg="$1"
  shift 1
  case "$arg" in
  --help)
    help_text
    exit 0
    ;;
  *)
    cat <<-EOF >&2
	ERROR: Unrecognised argument: '$arg'
	Please use --help for usage.
	EOF
    exit 1
    ;;
  esac
done


: Find the locally running dfx server
# TODO: Handle the case where there is none running.
# OS-dependent:
# - tested on Linux
# - TODO: test on osx
DFX_SERVER_DIR="$(realpath "/proc/$(pgrep -n icx-proxy)/cwd")"

: Link
[[ "$(realpath .dfx)" == "$(realpath "$DFX_SERVER_DIR")/.dfx" ]] || {
	ln -s "$(realpath "$DFX_SERVER_DIR")/.dfx" .dfx
}