Linux: build an Arch package (.pkg.tar.zst)

package.sh now also builds designcraft-<ver>-linux-<arch>.pkg.tar.zst with nfpm's archlinux packager,
from the same nfpm.yaml. It is named by the bundle id (ai.storyteller.designcraft), provides designcraft and
conflicts with designcraft, designcraft-bin and designcraft-git, so an AUR helper doesn't take it over and ArtCraft
Launcher can tell it from an AUR build. The README lists it with the other Linux downloads.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

README.md

@@ -222,6 +222,7 @@ Installers and executables are code-signed.
 | Flatpak | `designcraft-<ver>-linux-x86_64.flatpak` | `designcraft-<ver>-linux-aarch64.flatpak` | Sandboxed; `flatpak install --user <file>` |
 | Debian/Ubuntu | `designcraft-<ver>-linux-x86_64.deb` | `designcraft-<ver>-linux-aarch64.deb` | |
 | Fedora/RHEL/openSUSE | `designcraft-<ver>-linux-x86_64.rpm` | `designcraft-<ver>-linux-aarch64.rpm` | |
+| Arch Linux/Manjaro | `designcraft-<ver>-linux-x86_64.pkg.tar.zst` | `designcraft-<ver>-linux-aarch64.pkg.tar.zst` | `sudo pacman -U <file>`; installs as `ai.storyteller.designcraft`, replacing an AUR package |
 | Tarball | `designcraft-<ver>-linux-x86_64.tar.gz` | `designcraft-<ver>-linux-aarch64.tar.gz` | Unpack anywhere |
 
 RISC-V (riscv64): `designcraft-<ver>-linux-riscv64.tar.gz` only, cross-compiled; needs glibc 2.39+ (Ubuntu 24.04 or newer).

packaging/linux/nfpm.yaml

@@ -1,4 +1,4 @@
-# .deb and .rpm packages (nfpm: https://nfpm.goreleaser.com). Run by package.sh, which stages
+# .deb/.rpm/Arch packages (nfpm: https://nfpm.goreleaser.com). Run by package.sh, which stages
 # the file tree, substitutes its path for ${STAGE} (nfpm doesn't expand env vars in `src`) and
 # exports VERSION and NFPM_ARCH.
 #
@@ -53,6 +53,24 @@ overrides:
       - libXrandr
       - mesa-vulkan-drivers
       - xdg-desktop-portal
+  # Named ai.storyteller.designcraft, not designcraft: the AUR already has designcraft, designcraft-bin and
+  # designcraft-git, and an AUR helper treats any installed package with an AUR name as its own and
+  # rebuilds it on the next update. ArtCraft Launcher also uses the bundle id to tell this package
+  # (which it updates with `pacman -U`) from an AUR build (which it leaves to the AUR helper).
+  # nfpm has no optdepends for Arch, so the recommends above have no equivalent here.
+  archlinux:
+    depends:
+      - glibc
+      - gcc-libs
+      - hicolor-icon-theme
+      - libxkbcommon
+      - vulkan-icd-loader
+    provides:
+      - designcraft
+    conflicts:
+      - designcraft
+      - designcraft-bin
+      - designcraft-git
 
 contents:
   - src: ${STAGE}/usr/bin/designcraft

packaging/linux/package.sh

@@ -5,11 +5,12 @@
 #   $DIST/designcraft-<version>-linux-<arch>.AppImage.zsync  delta updates (needs zsyncmake)
 #   $DIST/designcraft-<version>-linux-<arch>.deb       Debian, Ubuntu, Mint, Pop!_OS, ...
 #   $DIST/designcraft-<version>-linux-<arch>.rpm       Fedora, openSUSE, RHEL, ...
+#   $DIST/designcraft-<version>-linux-<arch>.pkg.tar.zst  Arch, Manjaro, EndeavourOS, ...
 #   $DIST/designcraft-<version>-linux-<arch>.tar.gz    plain FHS-style tree (bin/, share/)
 #
-# Usage: packaging/linux/package.sh [--skip-build] [--formats "appimage deb rpm tar"]
+# Usage: packaging/linux/package.sh [--skip-build] [--formats "appimage deb rpm arch tar"]
 #
-# Needs: cargo; nfpm for deb/rpm (https://nfpm.goreleaser.com); appimagetool for the AppImage
+# Needs: cargo; nfpm for deb/rpm/arch (https://nfpm.goreleaser.com); appimagetool for the AppImage
 # (downloaded into $CARGO_TARGET_DIR if missing). Build on an old distro (CI: Ubuntu 22.04,
 # glibc 2.35) so the binaries run on newer ones. Optional: desktop-file-validate, appstreamcli,
 # zsyncmake (the zsync package) for the AppImage's .zsync.
@@ -20,12 +21,12 @@ HERE="$ROOT/packaging/linux"
 APP_ID=ai.storyteller.designcraft
 
 SKIP_BUILD=0
-FORMATS="appimage deb rpm tar"
+FORMATS="appimage deb rpm arch tar"
 while [ $# -gt 0 ]; do
   case "$1" in
     --skip-build) SKIP_BUILD=1; shift ;;
     --formats) FORMATS="$2"; shift 2 ;;
-    -h | --help) sed -n '2,15p' "$0"; exit 0 ;;
+    -h | --help) sed -n '2,16p' "$0"; exit 0 ;;
     *) echo "unknown argument: $1" >&2; exit 2 ;;
   esac
 done
@@ -85,8 +86,8 @@ if has tar; then
   echo "wrote $DIST/$BASENAME.tar.gz"
 fi
 
-# ---- .deb / .rpm --------------------------------------------------------------------------------
-if has deb || has rpm; then
+# ---- .deb / .rpm / .pkg.tar.zst -----------------------------------------------------------------
+if has deb || has rpm || has arch; then
   command -v nfpm >/dev/null || { echo "error: nfpm not found (https://nfpm.goreleaser.com/install/)" >&2; exit 1; }
   export VERSION
   export NFPM_ARCH="$DEB_ARCH"
@@ -95,6 +96,14 @@ if has deb || has rpm; then
   for fmt in deb rpm; do
     if has "$fmt"; then (cd "$ROOT" && nfpm package -f "$WORK/nfpm.yaml" -p "$fmt" -t "$DIST/$BASENAME.$fmt"); fi
   done
+  # The Arch package is named by the bundle id (see `archlinux` in nfpm.yaml), which nfpm can't
+  # override per format, and `archlinux.packager` isn't env-expanded, so both are written here.
+  if has arch; then
+    sed "s|^name: designcraft\$|name: $APP_ID|" "$WORK/nfpm.yaml" >"$WORK/nfpm-arch.yaml"
+    grep -qx "name: $APP_ID" "$WORK/nfpm-arch.yaml" || { echo "error: couldn't rename the Arch package" >&2; exit 1; }
+    printf 'archlinux:\n  packager: "%s"\n' "$DESIGNCRAFT_MAINTAINER" >>"$WORK/nfpm-arch.yaml"
+    (cd "$ROOT" && nfpm package -f "$WORK/nfpm-arch.yaml" -p archlinux -t "$DIST/$BASENAME.pkg.tar.zst")
+  fi
 fi
 
 # ---- AppImage -----------------------------------------------------------------------------------