New TMUX statusbar and config cleanup

config-files/.config/tmux/plugins/tmux-cpu/scripts/helpers.sh

@@ -0,0 +1,152 @@
+#!/usr/bin/env bash
+
+export LANG=C
+export LC_ALL=C
+
+get_tmux_option() {
+  local option
+  local default_value
+  local option_value
+  option="$1"
+  default_value="$2"
+  option_value="$(tmux show-option -qv "$option")"
+  if [ -z "$option_value" ]; then
+    option_value="$(tmux show-option -gqv "$option")"
+  fi
+  if [ -z "$option_value" ]; then
+    echo "$default_value"
+  else
+    echo "$option_value"
+  fi
+}
+
+is_osx() {
+  [ "$(uname)" == "Darwin" ]
+}
+
+is_freebsd() {
+  [ "$(uname)" == "FreeBSD" ]
+}
+
+is_openbsd() {
+  [ "$(uname)" == "OpenBSD" ]
+}
+
+is_linux() {
+  [ "$(uname)" == "Linux" ]
+}
+
+is_cygwin() {
+  command -v WMIC &>/dev/null
+}
+
+is_linux_iostat() {
+  # Bug in early versions of linux iostat -V return error code
+  iostat -c &>/dev/null
+}
+
+# is second float bigger or equal?
+fcomp() {
+  awk -v n1="$1" -v n2="$2" 'BEGIN {if (n1<=n2) exit 0; exit 1}'
+}
+
+load_status() {
+  local percentage=$1
+  local prefix=$2
+  medium_thresh=$(get_tmux_option "@${prefix}_medium_thresh" "30")
+  high_thresh=$(get_tmux_option "@${prefix}_high_thresh" "80")
+  if fcomp "$high_thresh" "$percentage"; then
+    echo "high"
+  elif fcomp "$medium_thresh" "$percentage" && fcomp "$percentage" "$high_thresh"; then
+    echo "medium"
+  else
+    echo "low"
+  fi
+}
+
+temp_status() {
+  local temp
+  temp=$1
+  cpu_temp_medium_thresh=$(get_tmux_option "@cpu_temp_medium_thresh" "80")
+  cpu_temp_high_thresh=$(get_tmux_option "@cpu_temp_high_thresh" "90")
+  if fcomp "$cpu_temp_high_thresh" "$temp"; then
+    echo "high"
+  elif fcomp "$cpu_temp_medium_thresh" "$temp" && fcomp "$temp" "$cpu_temp_high_thresh"; then
+    echo "medium"
+  else
+    echo "low"
+  fi
+}
+
+cpus_number() {
+  if is_linux; then
+    if command_exists "nproc"; then
+      nproc
+    else
+      echo "$(($(sed -n 's/^processor.*:\s*\([0-9]\+\)/\1/p' /proc/cpuinfo | tail -n 1) + 1))"
+    fi
+  else
+    sysctl -n hw.ncpu
+  fi
+}
+
+command_exists() {
+  local command
+  command="$1"
+  command -v "$command" &>/dev/null
+}
+
+get_tmp_dir() {
+  local tmpdir
+  tmpdir="${TMPDIR:-${TMP:-${TEMP:-/tmp}}}"
+  [ -d "$tmpdir" ] || local tmpdir=~/tmp
+  echo "$tmpdir/tmux-$EUID-cpu"
+}
+
+get_time() {
+  date +%s.%N
+}
+
+get_cache_val() {
+  local key
+  local timeout
+  local cache
+  key="$1"
+  # seconds after which cache is invalidated
+  timeout="${2:-2}"
+  cache="$(get_tmp_dir)/$key"
+  if [ -f "$cache" ]; then
+    awk -v cache="$(head -n1 "$cache")" -v timeout="$timeout" -v now="$(get_time)" \
+      'BEGIN {if (now - timeout < cache) exit 0; exit 1}' &&
+      tail -n+2 "$cache"
+  fi
+}
+
+put_cache_val() {
+  local key
+  local val
+  local tmpdir
+  key="$1"
+  val="${*:2}"
+  tmpdir="$(get_tmp_dir)"
+  [ ! -d "$tmpdir" ] && mkdir -p "$tmpdir" && chmod 0700 "$tmpdir"
+  (
+    get_time
+    echo -n "$val"
+  ) >"$tmpdir/$key"
+  echo -n "$val"
+}
+
+cached_eval() {
+  local command
+  local key
+  local val
+  command="$1"
+  key="$(basename "$command")"
+  val="$(get_cache_val "$key")"
+  if [ -z "$val" ]; then
+    put_cache_val "$key" "$($command "${@:2}")"
+  else
+    echo -n "$val"
+  fi
+}