Add cn doctor with mirror auto-failover and restore commands

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

bin/omarchy-cn-doctor

@@ -0,0 +1,91 @@
+#!/bin/bash
+# omarchy:summary=Check network, pacman mirror, and dev registries; --fix fails over mirrors
+# omarchy:args=[network|mirror|dev-mirror] [--fix]
+# omarchy:examples=omarchycn doctor | omarchycn doctor mirror --fix
+
+set -euo pipefail
+
+source "$OMARCHY_PATH/cn/lib/mirror.sh"
+
+module="all"
+fix="false"
+for arg in "$@"; do
+  case "$arg" in
+  network | mirror | dev-mirror) module="$arg" ;;
+  --fix) fix="true" ;;
+  *)
+    echo "Unknown argument: $arg" >&2
+    exit 2
+    ;;
+  esac
+done
+
+failures=0
+
+check_network() {
+  local host
+  for host in mirrors.tuna.tsinghua.edu.cn archlinux.org; do
+    if getent hosts "$host" > /dev/null 2>&1; then
+      echo "PASS network: DNS resolves $host"
+    else
+      echo "FAIL network: cannot resolve $host"
+      failures=$((failures + 1))
+    fi
+  done
+  if curl -sSf -o /dev/null -m 8 --connect-timeout 5 https://www.baidu.com 2>/dev/null; then
+    echo "PASS network: HTTPS reachable (baidu.com)"
+  else
+    echo "FAIL network: HTTPS unreachable (baidu.com)"
+    failures=$((failures + 1))
+  fi
+}
+
+check_mirror() {
+  local primary speed ttfb age
+
+  primary=$(grep -sE '^Server' "$CN_MIRRORLIST" | head -1 | sed -E 's/^Server = //; s|/\$repo/os/\$arch/?$||')
+  if [[ -z $primary ]]; then
+    echo "FAIL mirror: no Server entries in $CN_MIRRORLIST"
+    failures=$((failures + 1))
+    return 0
+  fi
+
+  echo "INFO mirror: primary $primary"
+  read -r speed ttfb age < <(cn_mirror_probe "$primary")
+  if (( speed > 0 )) && [[ $age != "stale" ]]; then
+    echo "PASS mirror: primary healthy ($((speed / 1024)) KB/s, sync age ${age}s)"
+    return 0
+  fi
+
+  echo "FAIL mirror: primary unhealthy (speed=$speed age=$age)"
+  failures=$((failures + 1))
+
+  if [[ $fix == "true" && -f $CN_PROFILE_FILE && $(<"$CN_PROFILE_FILE") == "china" ]]; then
+    echo "INFO mirror: re-applying china profile (auto-failover)"
+    if omarchy-cn-mirror-apply china; then
+      failures=$((failures - 1))
+      omarchy-notification-send "OmarchyCN" "pacman 镜像已自动切换" || true
+    fi
+  fi
+}
+
+check_dev_mirror() {
+  omarchy-cn-dev-mirror-doctor || failures=$((failures + 1))
+}
+
+case "$module" in
+network) check_network ;;
+mirror) check_mirror ;;
+dev-mirror) check_dev_mirror ;;
+all)
+  check_network
+  check_mirror
+  check_dev_mirror
+  ;;
+esac
+
+if (( failures > 0 )); then
+  echo "Doctor: $failures failure(s)"
+  exit 1
+fi
+echo "Doctor: all checks passed"

bin/omarchy-cn-restore-config

@@ -0,0 +1,33 @@
+#!/bin/bash
+# omarchy:summary=Restore development registry configs from a backup stamp
+# omarchy:args=<stamp>
+# omarchy:examples=omarchycn restore config 20260824-184243
+
+set -euo pipefail
+
+source "$OMARCHY_PATH/cn/lib/dev-mirror.sh"
+
+stamp="${1:?usage: omarchycn restore config <stamp> (see: omarchycn restore list)}"
+dir="$CN_DM_BACKUP_ROOT/$stamp"
+
+if [[ ! -d $dir ]]; then
+  echo "No backup at $dir" >&2
+  exit 1
+fi
+
+restored=0
+for target in "${CN_DM_TARGETS[@]}"; do
+  dest=$(cn_dm_config_file "$target")
+  src="$dir/${dest##*/}"
+  if [[ -f $src && $dest != /etc/* ]]; then
+    mkdir -p "${dest%/*}"
+    cp "$src" "$dest"
+    echo "restored $target: $dest"
+    restored=$((restored + 1))
+  fi
+done
+
+if (( restored == 0 )); then
+  echo "Nothing restored from $dir (system files like docker are not auto-restored)" >&2
+  exit 1
+fi

bin/omarchy-cn-restore-list

@@ -0,0 +1,31 @@
+#!/bin/bash
+# omarchy:summary=List OmarchyCN configuration backups
+# omarchy:examples=omarchycn restore list
+
+set -euo pipefail
+
+source "$OMARCHY_PATH/cn/lib/dev-mirror.sh"
+
+echo "Dev-mirror backups ($CN_DM_BACKUP_ROOT):"
+if [[ -d $CN_DM_BACKUP_ROOT ]]; then
+  for dir in "$CN_DM_BACKUP_ROOT"/*/; do
+    [[ -d $dir ]] || continue
+    stamp="${dir%/}"
+    stamp="${stamp##*/}"
+    echo "  $stamp: $(ls "$dir" | tr '\n' ' ')"
+  done
+else
+  echo "  (none)"
+fi
+
+echo "Mirrorlist backups (/etc/pacman.d):"
+found="false"
+for f in /etc/pacman.d/mirrorlist.omarchycn-bak-*; do
+  if [[ -e $f ]]; then
+    echo "  ${f##*/}"
+    found="true"
+  fi
+done
+if [[ $found == "false" ]]; then
+  echo "  (none)"
+fi