Add package-first build and distribution workflow

scripts/package_common.sh

@@ -0,0 +1,84 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+ROOT_DIR="$(cd "${SCRIPT_DIR}/.." && pwd)"
+DIST_DIR="${ROOT_DIR}/dist"
+BUILD_DIR="${ROOT_DIR}/build"
+APP_NAME="aman"
+
+mkdir -p "${DIST_DIR}" "${BUILD_DIR}"
+
+require_command() {
+  local cmd="$1"
+  if command -v "${cmd}" >/dev/null 2>&1; then
+    return
+  fi
+  echo "missing required command: ${cmd}" >&2
+  exit 1
+}
+
+project_version() {
+  require_command python3
+  python3 - <<'PY'
+from pathlib import Path
+import re
+
+text = Path("pyproject.toml").read_text(encoding="utf-8")
+match = re.search(r'(?m)^version\s*=\s*"([^"]+)"\s*$', text)
+if not match:
+    raise SystemExit("project version not found in pyproject.toml")
+print(match.group(1))
+PY
+}
+
+project_name() {
+  require_command python3
+  python3 - <<'PY'
+from pathlib import Path
+import re
+
+text = Path("pyproject.toml").read_text(encoding="utf-8")
+match = re.search(r'(?m)^name\s*=\s*"([^"]+)"\s*$', text)
+if not match:
+    raise SystemExit("project name not found in pyproject.toml")
+print(match.group(1))
+PY
+}
+
+build_wheel() {
+  require_command python3
+  python3 -m build --wheel --no-isolation
+}
+
+latest_wheel_path() {
+  require_command python3
+  python3 - <<'PY'
+from pathlib import Path
+import re
+
+text = Path("pyproject.toml").read_text(encoding="utf-8")
+name_match = re.search(r'(?m)^name\s*=\s*"([^"]+)"\s*$', text)
+version_match = re.search(r'(?m)^version\s*=\s*"([^"]+)"\s*$', text)
+if not name_match or not version_match:
+    raise SystemExit("project metadata not found in pyproject.toml")
+name = name_match.group(1).replace("-", "_")
+version = version_match.group(1)
+candidates = sorted(Path("dist").glob(f"{name}-{version}-*.whl"))
+if not candidates:
+    raise SystemExit("no wheel artifact found in dist/")
+print(candidates[-1])
+PY
+}
+
+render_template() {
+  local template_path="$1"
+  local output_path="$2"
+  shift 2
+  cp "${template_path}" "${output_path}"
+  for mapping in "$@"; do
+    local key="${mapping%%=*}"
+    local value="${mapping#*=}"
+    sed -i "s|__${key}__|${value}|g" "${output_path}"
+  done
+}