43 lines
1.4 KiB
Bash
Executable File
43 lines
1.4 KiB
Bash
Executable File
#!/usr/bin/env bash
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# CPU temperature (°C) for the tmux status bar (thermometer glyph U+F050F).
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# Sensor hunt, most→least specific: a CPU-ish thermal zone (x86_pkg_temp/…),
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# else a CPU hwmon chip (coretemp/k10temp/…), else the hottest remaining zone
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# (acpitz can be a bogus constant on desktops, hence last). Prints NOTHING when
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# no sensor exists (VMs/containers) so the segment simply disappears — which is
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# also why the trailing spacing lives in here, not in status-right.
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cpu_zone=""
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any_zone=""
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hw=""
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for d in /sys/class/thermal/thermal_zone*/; do
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[ -r "${d}temp" ] && [ -r "${d}type" ] || continue
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t=$(<"${d}temp")
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case $t in '' | *[!0-9]*) continue ;; esac
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ty=$(<"${d}type")
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ty=${ty,,}
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case $ty in *x86_pkg_temp* | *coretemp* | *k10temp* | *tctl* | *cpu*)
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if [ -z "$cpu_zone" ] || [ "$t" -gt "$cpu_zone" ]; then cpu_zone=$t; fi
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;;
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esac
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if [ -z "$any_zone" ] || [ "$t" -gt "$any_zone" ]; then any_zone=$t; fi
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done
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if [ -z "$cpu_zone" ]; then
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for d in /sys/class/hwmon/hwmon*/; do
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[ -r "${d}name" ] || continue
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case $(<"${d}name") in coretemp | k10temp | zenpower | cpu_thermal)
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for f in "${d}"temp*_input; do
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[ -r "$f" ] || continue
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t=$(<"$f")
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case $t in '' | *[!0-9]*) continue ;; esac
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if [ -z "$hw" ] || [ "$t" -gt "$hw" ]; then hw=$t; fi
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done
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;;
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esac
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done
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fi
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t=${cpu_zone:-${hw:-$any_zone}}
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[ -n "$t" ] || exit 0
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printf '\U000f050f %d° ' $(((t + 500) / 1000))
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