Add Arch/systemd/ghostmirror-monthly.service

Arch/systemd/ghostmirror-monthly.service

@@ -0,0 +1,48 @@
+[Unit]
+Description=Monthly mirror update – Timeshift backup then GhostMirror refresh
+Documentation=https://github.com/vbextreme/ghostmirror
+After=network-online.target
+Wants=network-online.target
+
+[Service]
+Type=oneshot
+
+# Step 1: Timeshift RSYNC snapshot before touching anything
+ExecStart=/bin/sh -c '/usr/bin/timeshift --create --rsync \
+    --comments "pre-ghostmirror monthly mirror update $(date +%%Y-%%m-%%d %%H:%%M:%%S)" \
+    --scripted'
+
+# Step 2: Fetch & rank mirror pool
+# -c  countries: Switzerland (primary), Germany, Italy + Austria, France, Netherlands
+# -L  30 candidates
+# -S  drop errored mirrors, prefer synced + fresh + nearest
+ExecStart=/usr/bin/ghostmirror \
+    -P -o \
+    -c Switzerland,Germany,Italy,Austria,France,Netherlands \
+    -l /etc/pacman.d/mirrorlist \
+    -L 30 \
+    -S state,outofdate,morerecent,ping
+
+# Step 3: Speed-test candidates, write final top 10 to mirrorlist
+# -m  use the file from step 2
+# -u  file is already uncommented
+# -s  light speed test (~6 MiB per mirror)
+# -L  keep top 10
+# -S  stability + speed on top of sync/freshness
+ExecStart=/usr/bin/ghostmirror \
+    -P -o \
+    -m /etc/pacman.d/mirrorlist \
+    -u \
+    -l /etc/pacman.d/mirrorlist \
+    -L 10 \
+    -s light \
+    -S state,outofdate,morerecent,estimated,speed
+
+Nice=10
+IOSchedulingClass=best-effort
+IOSchedulingPriority=5
+StandardOutput=journal
+StandardError=journal
+
+[Install]
+WantedBy=multi-user.target