From 168f1d46569e796423f6a86cb1917b0d8cd06b8c Mon Sep 17 00:00:00 2001
From: Daniel Weipert <code@drogueronin.de>
Date: Thu, 11 May 2023 14:00:57 +0200
Subject: [pacman] add hook for linux-lts-versioned-bin update

to create unversioned lts entries in /boot
---
 .config/pacman/bin/linux-lts-versioned-bin-hook   | 30 +++++++++++++++++++++++
 .config/pacman/hooks/linux-lts-versioned-bin.hook | 11 +++++++++
 .config/yadm/bootstrap                            | 11 +++++++++
 3 files changed, 52 insertions(+)
 create mode 100755 .config/pacman/bin/linux-lts-versioned-bin-hook
 create mode 100644 .config/pacman/hooks/linux-lts-versioned-bin.hook

diff --git a/.config/pacman/bin/linux-lts-versioned-bin-hook b/.config/pacman/bin/linux-lts-versioned-bin-hook
new file mode 100755
index 0000000..ebb9b01
--- /dev/null
+++ b/.config/pacman/bin/linux-lts-versioned-bin-hook
@@ -0,0 +1,30 @@
+#! /usr/bin/python
+
+import sys, os, re
+
+boot_dir = '/boot'
+
+lts_vm_files = list(
+    filter(
+        re.compile(r'vmlinuz-([\d\.\-]+)-lts$').match,
+        os.listdir(boot_dir)
+    )
+)
+
+if not lts_vm_files:
+    print(f'No versioned kernel files found in {boot_dir}')
+    sys.exit(1)
+
+highest_lts_version_file = lts_vm_files[-1]
+version_name = re.search(r'vmlinuz-([\d\.\-]+)-lts$', highest_lts_version_file).group(1)
+
+symlink_map = {
+    f'{boot_dir}/initramfs-{version_name}-lts.img': f'{boot_dir}/initramfs-linux-lts.img',
+    f'{boot_dir}/initramfs-{version_name}-lts-fallback.img': f'{boot_dir}/initramfs-linux-lts-fallback.img',
+    f'{boot_dir}/vmlinuz-{version_name}-lts': f'{boot_dir}/vmlinuz-linux-lts',
+}
+for src, dst in symlink_map.items():
+    os.path.islink(dst) and os.unlink(dst)
+    os.symlink(src, dst)
+
+sys.exit(0)
diff --git a/.config/pacman/hooks/linux-lts-versioned-bin.hook b/.config/pacman/hooks/linux-lts-versioned-bin.hook
new file mode 100644
index 0000000..c9fa4fd
--- /dev/null
+++ b/.config/pacman/hooks/linux-lts-versioned-bin.hook
@@ -0,0 +1,11 @@
+[Trigger]
+Operation = Install
+Operation = Upgrade
+Operation = Remove
+Type = File
+Target = usr/lib/modules/*/vmlinuz
+
+[Action]
+Description = Symlinking newest versioned lts kernel...
+When = PostTransaction
+Exec = /usr/local/bin/linux-lts-versioned-bin-hook
diff --git a/.config/yadm/bootstrap b/.config/yadm/bootstrap
index 6ca05e9..06e079f 100755
--- a/.config/yadm/bootstrap
+++ b/.config/yadm/bootstrap
@@ -45,3 +45,14 @@ if command -v fcitx5 > /dev/null 2>&1; then
   sudo ln -s "$HOME/.config/fcitx5/systemd/fcitx5-user.timer" /etc/systemd/user/
   systemctl --user enable 'fcitx5-user.timer' --now
 fi
+
+
+# #
+# pacman
+# #
+
+# linux-lts-versioned-bin
+if [ ! -f "/usr/share/libalpm/hooks/linux-lts-versioned-bin.hook" ]; then
+  sudo ln -s "$HOME/.config/pacman/hooks/linux-lts-versioned-bin.hook" /usr/share/libalpm/hooks/linux-lts-versioned-bin.hook
+  sudo ln -s "$HOME/.config/pacman/bin/linux-lts-versioned-bin-hook" /usr/local/bin/linux-lts-versioned-bin-hook
+fi
-- 
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