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commit cafca2ced041989eccf7a317ed8c1876c305438e
parent 46f06be448ddcffdaf1d328238074fa314b4c6bd
Author: Matthew Carlson <matt@mcarlson.xyz>
Date:   Sun,  1 Aug 2021 16:45:35 -0400

cpu info script

Diffstat:
A
.local/bin/bar/cpu.sh
 | 
68
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

1 file changed, 68 insertions(+), 0 deletions(-)
diff --git a/.local/bin/bar/cpu.sh b/.local/bin/bar/cpu.sh
@@ -0,0 +1,68 @@
+#!/bin/sh
+#
+# cpu
+
+LOAD_ICON=''
+TEMP_EMPTY_ICON=''
+TEMP_QUARTER_ICON=''
+TEMP_HALF_ICON=''
+TEMP_THREE_QUARTERS_ICON=''
+TEMP_FULL_ICON=''
+
+# approx delay with top alternative
+DELAY=3.15
+
+# differs on machine
+TEMP="$(ls /sys/class/thermal/thermal_zone2*/temp)"
+
+# cache used b/c awk and delay is time expensive
+USAGE="${XDG_CACHE_HOME:-${HOME}/.cache}/bar/usage"
+
+calculate_temp() {
+    [ -f "${TEMP}" ] && temp=$(cat "${TEMP}")
+    # convert millidegree celsius to celsius
+    temp=$((temp/1000))
+}
+
+calculate_usage() {
+    # perform math on cpu numbers from /proc/stat to get usage
+    printf '%s\n' "$({ cat /proc/stat; sleep "${DELAY}"; cat /proc/stat; } |
+        awk '/^cpu / {usr=$2-usr; sys=$4-sys; idle=$5-idle; iow=$6-iow}
+        END {total=usr+sys+idle+iow; printf "%.0f\n", (total-idle)*100/total}')" > "${USAGE}"
+}
+
+# top ten intensive processes
+get_procs() { ps -Ao comm,pcpu --sort=-pcpu | head -n 11 | tail -n -10 | sed 's/$/%/' ; }
+
+get_usage() { [ -f "${USAGE}" ] && usage=$(cat "${USAGE}") ; }
+
+show() {
+    # temp
+    calculate_temp
+    case ${temp} in
+        [0-9][0-9][0-9]*)  TEMP_ICON="${TEMP_FULL_ICON}"           ;;
+        7[5-9]|[8-9][0-9]) TEMP_ICON="${TEMP_THREE_QUARTERS_ICON}" ;;
+        [5-6][0-9]|7[0-4]) TEMP_ICON="${TEMP_HALF_ICON}"           ;;
+        [0-4][0-9])        TEMP_ICON="${TEMP_QUARTER_ICON}"        ;;
+        0)                 TEMP_ICON="${TEMP_EMPTY_ICON}"          ;;
+    esac
+
+    calculate_usage &
+
+    get_usage
+
+    # print load in percentage and temp in celsius
+    printf '%s\n' "${LOAD_ICON} ${usage}% ${TEMP_ICON} ${temp}°C"
+}
+
+main() {
+    # called from bar
+    [ ${#} -eq 0 ] && show
+
+    # bar usage
+    case "${BLOCK_BUTTON}" in
+        *) ;;
+    esac
+}
+
+main "${@}"