dissimulo
467b967ced
`hostname -I` is GNU-only and errors on BSD/macOS, so when the public-IP curl couldn't reach api.ipify.org the script printed nothing and the tmux status bar showed an empty IP. Try `ipconfig getifaddr` for common interfaces first, fall back to `hostname -I` on Linux, then `ifconfig` as a last resort. Also guard against empty-but-zero-exit curl output.
50 lines
1.3 KiB
Bash
Executable File
50 lines
1.3 KiB
Bash
Executable File
#!/bin/bash
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#
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# Print the "best" IP for the tmux status bar.
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# Preference: DO reserved/floating IP > public egress (ipify) > first local IP.
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#
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set -u
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META="http://169.254.169.254/metadata/v1"
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CURL="curl -sf --connect-timeout 1 --max-time 2"
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is_digitalocean() {
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[ -r /sys/class/dmi/id/sys_vendor ] \
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&& grep -qi digitalocean /sys/class/dmi/id/sys_vendor
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}
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do_anchor_ip() {
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local kind active ip
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for kind in reserved_ip floating_ip; do
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active=$($CURL "$META/$kind/ipv4/active" 2>/dev/null) || continue
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[ "$active" = "true" ] || continue
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ip=$($CURL "$META/$kind/ipv4/ip_address" 2>/dev/null) || continue
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[ -n "$ip" ] && { printf '%s\n' "$ip"; return 0; }
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done
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return 1
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}
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if is_digitalocean && do_anchor_ip; then
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exit 0
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fi
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print_local_ip() {
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local iface ip
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if command -v ipconfig >/dev/null 2>&1; then
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for iface in en0 en1 en2; do
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ip=$(ipconfig getifaddr "$iface" 2>/dev/null) || true
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[ -n "${ip:-}" ] && { printf '%s\n' "$ip"; return 0; }
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done
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fi
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if hostname -I >/dev/null 2>&1; then
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hostname -I | awk '{print $1}'
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return 0
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fi
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ifconfig 2>/dev/null | awk '/inet /{ if ($2 != "127.0.0.1") { print $2; exit } }'
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}
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ip=$(curl -s --connect-timeout 3 https://api.ipify.org 2>/dev/null || true)
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[ -z "${ip:-}" ] && ip=$(print_local_ip)
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printf '%s\n' "${ip:-}"
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