Add omarchycn-keyring package and container build script

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QKxGW1raAWaqeU8WdHsMsp

packages/build-keyring.sh

@@ -0,0 +1,19 @@
+#!/bin/bash
+# Builds omarchycn-keyring in a clean archlinux container; output to packages/out/
+
+set -euo pipefail
+
+ROOT=$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")/.." && pwd)
+
+docker run --rm -v "$ROOT:/src:ro" -v "$ROOT/packages/out:/out" archlinux/archlinux:latest bash -c '
+set -euo pipefail
+pacman -Sy --noconfirm --quiet base-devel > /dev/null
+useradd -m builder
+cp -r /src/packages/omarchycn-keyring /home/builder/pkg
+cp /src/cn/keys/omarchycn-registry.asc /src/cn/keys/omarchycn-release.asc /home/builder/pkg/
+chown -R builder /home/builder/pkg
+cd /home/builder/pkg
+sudo -u builder makepkg --noconfirm
+install -m644 omarchycn-keyring-*.pkg.tar.zst /out/
+'
+echo "Built: $(ls "$ROOT"/packages/out/omarchycn-keyring-*.pkg.tar.zst)"

packages/omarchycn-keyring/PKGBUILD

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+pkgname=omarchycn-keyring
+pkgver=20260824
+pkgrel=1
+pkgdesc="OmarchyCN PGP keyring: package registry and release signing keys"
+arch=(any)
+url="https://git.zacharyzhang.com/ZacharyZhang-NY/omarchycn"
+license=(MIT)
+install=omarchycn-keyring.install
+source=(omarchycn-registry.asc omarchycn-release.asc omarchycn-trusted)
+sha256sums=(SKIP SKIP SKIP)
+
+build() {
+  cat omarchycn-registry.asc omarchycn-release.asc | gpg --dearmor > omarchycn.gpg
+}
+
+package() {
+  install -Dm644 omarchycn.gpg "$pkgdir/usr/share/pacman/keyrings/omarchycn.gpg"
+  install -Dm644 omarchycn-trusted "$pkgdir/usr/share/pacman/keyrings/omarchycn-trusted"
+  install -Dm644 /dev/null "$pkgdir/usr/share/pacman/keyrings/omarchycn-revoked"
+}

packages/omarchycn-keyring/omarchycn-keyring.install

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+post_install() {
+  usr/bin/pacman-key --populate omarchycn
+}
+
+post_upgrade() {
+  usr/bin/pacman-key --populate omarchycn
+}

packages/omarchycn-keyring/omarchycn-trusted

@@ -0,0 +1,2 @@
+74DCF57ACD812B24D959F146BD386048867B33B4:4:
+04490F065F6ADD262A7243506EDF7B8603B5D247:4: