Add package-first build and distribution workflow

scripts/package_arch.sh

@@ -0,0 +1,44 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+ROOT_DIR="$(cd "${SCRIPT_DIR}/.." && pwd)"
+source "${SCRIPT_DIR}/package_common.sh"
+
+require_command git
+require_command sha256sum
+
+VERSION="$(project_version)"
+PACKAGE_NAME="$(project_name)"
+ARCH_DIST_DIR="${DIST_DIR}/arch"
+TARBALL_NAME="${PACKAGE_NAME}-${VERSION}.tar.gz"
+TARBALL_PATH="${ARCH_DIST_DIR}/${TARBALL_NAME}"
+PKGBUILD_PATH="${ARCH_DIST_DIR}/PKGBUILD"
+
+mkdir -p "${ARCH_DIST_DIR}"
+
+git -C "${ROOT_DIR}" archive \
+  --format=tar.gz \
+  --prefix="${PACKAGE_NAME}-${VERSION}/" \
+  HEAD \
+  > "${TARBALL_PATH}"
+
+TARBALL_SHA256="$(sha256sum "${TARBALL_PATH}" | awk '{print $1}')"
+
+render_template \
+  "${ROOT_DIR}/packaging/arch/PKGBUILD.in" \
+  "${PKGBUILD_PATH}" \
+  "VERSION=${VERSION}" \
+  "TARBALL_NAME=${TARBALL_NAME}" \
+  "TARBALL_SHA256=${TARBALL_SHA256}"
+
+echo "generated ${PKGBUILD_PATH}"
+echo "generated ${TARBALL_PATH}"
+
+if [[ "${BUILD_ARCH_PACKAGE:-0}" == "1" ]]; then
+  require_command makepkg
+  (
+    cd "${ARCH_DIST_DIR}"
+    makepkg -f
+  )
+fi