#!/usr/bin/env bash
#
# build.sh - builds gitdesk into a single executable: dist/gitdesk
#
# Run it on the system you want the executable for (Linux builds a Linux
# binary, macOS builds a macOS one). For Windows use build.bat on Windows.
# It makes its own throwaway environment in .build-venv, so it doesn't touch
# your system Python packages.
set -euo pipefail
cd "$(dirname "$0")"

PY=$(command -v python3 || command -v python || true)
[[ -n $PY ]] || { echo "Python 3 wasn't found. Install it first."; exit 1; }

echo "[1/3] Creating the build environment (.build-venv)..."
if [[ ! -x .build-venv/bin/python ]]; then
  "$PY" -m venv .build-venv || {
    echo "Couldn't create a virtualenv. On Debian/Ubuntu: sudo apt install python3-venv"; exit 1; }
fi
VPY=.build-venv/bin/python

echo "[2/3] Installing PyInstaller and Textual..."
"$VPY" -m pip install --quiet --upgrade pip
"$VPY" -m pip install --quiet pyinstaller -r requirements.txt

echo "[3/3] Building..."
# Textual and Rich load some of their modules on demand, so tell PyInstaller to
# bundle all of them.
"$VPY" -m PyInstaller --noconfirm --clean --onefile --name gitdesk \
  --collect-submodules textual --collect-data textual --collect-submodules rich \
  --specpath build --workpath build --distpath dist \
  gitdesk.py

echo
echo "Done: $PWD/dist/gitdesk"
echo "Copy it somewhere on your PATH (e.g. ~/.local/bin) and run 'gitdesk' inside a repo."