Add Arch mirror manager: benchmark, apply, pin, restore, status
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01QKxGW1raAWaqeU8WdHsMsp
This commit is contained in:
Claude Fable 5
Executable
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#!/bin/bash
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# omarchy:summary=Apply a mirror profile or pin one mirror for pacman
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# omarchy:args=<china|official|mirror-id>
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# omarchy:examples=omarchycn mirror apply china | omarchycn mirror apply official | omarchycn mirror apply tuna
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# omarchy:requires-sudo=true
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set -euo pipefail
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source "$OMARCHY_PATH/cn/lib/mirror.sh"
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target="${1:?usage: omarchycn mirror apply <china|official|mirror-id>}"
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case "$target" in
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china)
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echo "Benchmarking China mirrors..."
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mapfile -t ranked < <(cn_mirror_rank $(cn_mirror_ids_by_region cn))
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if (( ${#ranked[@]} == 0 )); then
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echo "No healthy China mirror reachable; keeping current mirrorlist" >&2
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exit 1
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fi
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# Primary + up to two backups
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cn_mirror_write_list china "${ranked[@]:0:3}"
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;;
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official)
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cn_mirror_write_list official geo worldwide
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;;
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*)
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url=$(cn_mirror_url "$target")
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if [[ -z $url ]]; then
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echo "Unknown mirror id: $target (see: omarchycn mirror benchmark)" >&2
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exit 1
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fi
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cn_mirror_write_list "pin:$target" "$target"
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;;
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esac
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Executable
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#!/bin/bash
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# omarchy:summary=Benchmark Arch mirrors for speed, latency, and sync freshness
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# omarchy:examples=omarchycn mirror benchmark
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set -euo pipefail
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source "$OMARCHY_PATH/cn/lib/mirror.sh"
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printf '%-11s %-22s %12s %8s %10s\n' "ID" "NAME" "SPEED" "TTFB" "SYNC"
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for id in $(cn_mirror_ids); do
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url=$(cn_mirror_url "$id")
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read -r speed ttfb age < <(cn_mirror_probe "$url")
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if (( speed > 0 )); then
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speed_h="$((speed / 1024)) KB/s"
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else
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speed_h="FAIL"
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fi
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case "$age" in
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stale) sync_h="STALE" ;;
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unknown) sync_h="?" ;;
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*) sync_h="$((age / 60))m ago" ;;
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esac
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printf '%-11s %-22s %12s %7ss %10s\n' "$id" "$(cn_mirror_name "$id")" "$speed_h" "${ttfb:0:5}" "$sync_h"
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done
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Executable
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#!/bin/bash
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# omarchy:summary=Pin pacman to a single mirror
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# omarchy:args=<mirror-id>
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# omarchy:examples=omarchycn mirror pin tuna
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# omarchy:requires-sudo=true
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set -euo pipefail
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exec omarchy-cn-mirror-apply "${1:?usage: omarchycn mirror pin <mirror-id>}"
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Executable
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#!/bin/bash
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# omarchy:summary=Restore the most recent mirrorlist backup
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# omarchy:examples=omarchycn mirror restore
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# omarchy:requires-sudo=true
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set -euo pipefail
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source "$OMARCHY_PATH/cn/lib/mirror.sh"
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backups=("$CN_MIRRORLIST".omarchycn-bak-*)
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if [[ ! -e ${backups[0]} ]]; then
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echo "No OmarchyCN mirrorlist backups found" >&2
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exit 1
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fi
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latest="${backups[-1]}"
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sudo cp "$latest" "$CN_MIRRORLIST"
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rm -f "$CN_PROFILE_FILE"
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echo "Restored $CN_MIRRORLIST from ${latest##*/}"
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Executable
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#!/bin/bash
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# omarchy:summary=Show current pacman mirror profile and servers
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# omarchy:examples=omarchycn mirror status
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set -euo pipefail
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source "$OMARCHY_PATH/cn/lib/mirror.sh"
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if [[ -f $CN_PROFILE_FILE ]]; then
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echo "Profile: $(<"$CN_PROFILE_FILE")"
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else
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echo "Profile: not managed by OmarchyCN"
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fi
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echo "Mirrorlist: $CN_MIRRORLIST"
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echo "Servers:"
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grep -E '^Server' "$CN_MIRRORLIST" | sed 's/^/ /'
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backups=("$CN_MIRRORLIST".omarchycn-bak-*)
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if [[ -e ${backups[0]} ]]; then
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echo "Backups: ${#backups[@]} (latest: ${backups[-1]##*/})"
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fi
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# Sourced helpers for omarchy-cn-mirror-* commands
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CN_MIRRORS_JSON="$OMARCHY_PATH/cn/mirrors.json"
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CN_MIRRORLIST="/etc/pacman.d/mirrorlist"
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CN_PROFILE_FILE="$HOME/.config/omarchycn/mirror-profile"
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cn_mirror_ids() {
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jq -r '.mirrors[].id' "$CN_MIRRORS_JSON"
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}
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cn_mirror_url() {
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jq -r --arg id "$1" '.mirrors[] | select(.id == $id) | .url' "$CN_MIRRORS_JSON"
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}
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cn_mirror_name() {
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jq -r --arg id "$1" '.mirrors[] | select(.id == $id) | .name' "$CN_MIRRORS_JSON"
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}
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cn_mirror_ids_by_region() {
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jq -r --arg r "$1" '.mirrors[] | select(.region == $r) | .id' "$CN_MIRRORS_JSON"
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}
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# Probe one mirror: prints "<speed_bytes_s> <ttfb_s> <sync_age_s|stale|unknown>"
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cn_mirror_probe() {
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local url="$1"
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local speed ttfb lastsync age now
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read -r speed ttfb < <(curl -sS -o /dev/null -m 12 --connect-timeout 5 \
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-w '%{speed_download} %{time_starttransfer}\n' \
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"$url/core/os/x86_64/core.db" 2>/dev/null) || true
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speed="${speed%%.*}"
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[[ -z $speed ]] && speed=0
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age="unknown"
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lastsync=$(curl -sS -m 5 --connect-timeout 5 "$url/lastsync" 2>/dev/null | tr -cd '0-9')
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if [[ -n $lastsync ]]; then
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now=$(date +%s)
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age=$((now - lastsync))
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(( age > 86400 )) && age="stale"
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fi
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echo "$speed ${ttfb:-0} $age"
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}
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# Rank ids by probe speed, excluding dead (speed 0) and stale mirrors
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cn_mirror_rank() {
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local id url speed ttfb age
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for id in "$@"; do
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url=$(cn_mirror_url "$id")
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read -r speed ttfb age < <(cn_mirror_probe "$url")
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(( speed > 0 )) || continue
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[[ $age == "stale" ]] && continue
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echo "$speed $id"
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done | sort -rn | awk '{print $2}'
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}
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# Write mirrorlist from mirror ids (first = primary), with timestamped backup
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cn_mirror_write_list() {
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local profile="$1"
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shift
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local stamp id url content=""
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stamp=$(date +%Y%m%d-%H%M%S)
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content="## OmarchyCN mirrorlist (profile: $profile, generated $stamp)\n"
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for id in "$@"; do
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url=$(cn_mirror_url "$id")
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content+="## $id: $(cn_mirror_name "$id")\nServer = $url/\$repo/os/\$arch\n"
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done
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sudo cp "$CN_MIRRORLIST" "$CN_MIRRORLIST.omarchycn-bak-$stamp"
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printf '%b' "$content" | sudo tee "$CN_MIRRORLIST" > /dev/null
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mkdir -p "${CN_PROFILE_FILE%/*}"
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echo "$profile" > "$CN_PROFILE_FILE"
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echo "Mirrorlist written ($CN_MIRRORLIST), backup: $CN_MIRRORLIST.omarchycn-bak-$stamp"
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}
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{
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"mirrors": [
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{ "id": "tuna", "name": "清华大学 TUNA", "region": "cn", "url": "https://mirrors.tuna.tsinghua.edu.cn/archlinux" },
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{ "id": "ustc", "name": "中国科学技术大学", "region": "cn", "url": "https://mirrors.ustc.edu.cn/archlinux" },
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{ "id": "aliyun", "name": "阿里云", "region": "cn", "url": "https://mirrors.aliyun.com/archlinux" },
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{ "id": "tencent", "name": "腾讯云", "region": "cn", "url": "https://mirrors.cloud.tencent.com/archlinux" },
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{ "id": "netease", "name": "网易", "region": "cn", "url": "https://mirrors.163.com/archlinux" },
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{ "id": "sjtu", "name": "上海交通大学", "region": "cn", "url": "https://mirror.sjtu.edu.cn/archlinux" },
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{ "id": "geo", "name": "Arch 官方 Geo Mirror", "region": "global", "url": "https://geo.mirror.pkgbuild.com" },
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{ "id": "worldwide", "name": "Arch 官方 Worldwide", "region": "global", "url": "https://mirror.rackspace.com/archlinux" }
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]
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}
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