76 lines
1.9 KiB
Bash
76 lines
1.9 KiB
Bash
#!/bin/bash
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set -euo pipefail
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function apt_update_if_stale () {
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if ! find /var/lib/apt/lists -type f -mmin -30 | grep -q .; then
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apt-get update
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else
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echo "Skipping apt update, metadata is fresh." > /dev/stderr
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fi
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}
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function main () {
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# check for ubuntu only
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if ! grep -qi '^ID=ubuntu' /etc/os-release; then
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echo "only for ubuntu" > /dev/stderr
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exit 1
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fi
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# check for root
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if [ "$EUID" -ne 0 ]; then
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echo "Please run as root" > /dev/stderr
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exit 1
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fi
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if ! grep -qE 'http(s)?://archive\.ubuntu\.com/' /etc/apt/sources.list.d/*; then
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echo "Not using default ubuntu repo, nothing for us to change. Exiting." > /dev/stderr
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exit 1
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fi
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apt_update_if_stale
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apt install -y jq curl
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echo "Changing mirror country to US as a first approximation..." > /dev/stderr
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find /etc/apt/sources.list.d/ -type f -exec \
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sed -i "s|archive\.ubuntu\.com|us.archive.ubuntu.com|g" {} +
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echo "Detecting actual country..." > /dev/stderr
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IPINFO="$(curl -s ipinfo.io)"
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if [ -z "$IPINFO" ]; then
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echo "Failed to geolocate (fetch). Exiting." > /dev/stderr
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exit 1
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fi
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COUNTRYCODE="$(jq .country -r <<< "$IPINFO")"
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if [[ -z "$COUNTRYCODE" ]]; then
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echo "Failed to geolocate (parse). Exiting." > /dev/stderr
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exit 1
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fi
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echo "IP geolocated as country: $COUNTRYCODE" > /dev/stderr
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if [[ "$COUNTRYCODE" == "US" ]]; then
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echo "Mirror was already set to US, nothing to do. Exiting." > /dev/stderr
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exit 0
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fi
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MIRRORHOST="$(echo "$COUNTRYCODE" | tr 'A-Z' 'a-z').archive.ubuntu.com"
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echo "Changing mirror country to $COUNTRYCODE..." > /dev/stderr
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find /etc/apt/sources.list.d/ -type f -exec \
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sed -i "s|us\.archive\.ubuntu\.com|$MIRRORHOST|g" {} +
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apt-get update
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echo "Finished." > /dev/stderr
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exit 0
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}
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main
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