X-Git-Url: https://git.xandkar.net/?a=blobdiff_plain;f=home%2Flib%2Flogin_functions.sh;h=006902863fad638cadaa0255d4452f6ce5015960;hb=22f1641ffee69609f220a143c67640d402811dc7;hp=45460f4aa487a1393c01936b74bbee32dc62adb8;hpb=86b746627f089d4634b48f023823dd3320a35610;p=khome.git

diff --git a/home/lib/login_functions.sh b/home/lib/login_functions.sh
index 45460f4..0069028 100644
--- a/home/lib/login_functions.sh
+++ b/home/lib/login_functions.sh
@@ -267,9 +267,10 @@ gh_fetch_repos() {
 }
 
 gh_clone() {
-    gh_user_type="$1"
-    gh_user_name="$2"
-    gh_dir="${DIR_GITHUB}/${gh_user_name}"
+    local -r gh_user_type="$1"
+    local -r gh_user_name="$2"
+
+    local -r gh_dir="${DIR_GITHUB}/${gh_user_name}"
     mkdir -p "$gh_dir"
     cd "$gh_dir" || kill -INT $$
     gh_fetch_repos "$gh_user_type" "$gh_user_name" \
@@ -317,7 +318,7 @@ EOF
 
 work_log() {
     mkdir -p "$DIR_WORK_LOG"
-    file_work_log_today="${DIR_WORK_LOG}/$(date +%F).md"
+    local -r file_work_log_today="${DIR_WORK_LOG}/$(date +%F).md"
     if [ ! -f "$file_work_log_today" ]
     then
         work_log_template > "$file_work_log_today"
@@ -353,10 +354,12 @@ bt_devs() {
 }
 
 run() {
-    stderr="$(mktemp)"
+    local -r stderr="$(mktemp)"
+
+    local code urgency
+
     $@ 2> >(tee "$stderr")
     code="$?"
-    urgency=''
     case "$code" in
         0) urgency='normal';;
         *) urgency='critical'
@@ -364,3 +367,164 @@ run() {
     notify-send -u "$urgency" "Job done: $code" "$(cat $stderr)"
     rm "$stderr"
 }
+
+bar_gauge() {
+    local -r width="$1"
+
+    awk -v width="$width" '
+        {
+            used  = $1
+            total = $2
+
+            u = num_scale(used, total, 1, width)
+
+            printf "["
+            for (i=1; i<=width; i++) {
+                c = i <= u ? "|" : "-"
+                printf "%s", c
+            }
+            printf "]\n"
+        }
+
+        function num_scale(src_cur, src_max, dst_min, dst_max) {
+            return dst_min + ((src_cur * (dst_max - dst_min)) / src_max)
+        }
+    '
+}
+
+motd_mem() {
+    local -r bar_width="$1"
+
+    printf 'mem '
+    free \
+    | awk '$1 == "Mem:" {total=$2; used=$3; print used, total}' \
+    | bar_gauge "$bar_width"
+}
+
+motd_disk() {
+    local -r bar_width="$1"
+
+    printf 'disk '
+    df ~ \
+    | awk 'NR == 2 {used=$3; avail=$4; total=used+avail; print used, total}' \
+    | bar_gauge "$bar_width"
+}
+
+motd_batt() {
+    local -r bar_width="$1"
+
+    case "$(uname)" in
+        'Linux')
+            printf 'batt '
+            upower --dump \
+            | awk '
+                /^Device:[ \t]+/ {
+                    device["path"] = $2
+                    next
+                }
+
+                /  battery/ && device["path"] {
+                    device["is_battery"] = 1
+                    next
+                }
+
+                /    percentage:/ && device["is_battery"] {
+                    device["battery_percentage"] = $2
+                    sub("%$", "", device["battery_percentage"])
+                    next
+                }
+
+                /^$/ {
+                    if (device["is_battery"] && device["path"] == "/org/freedesktop/UPower/devices/DisplayDevice")
+                        print device["battery_percentage"], 100
+                    delete device
+                }
+            ' \
+            | bar_gauge "$bar_width"
+        ;;
+    esac
+}
+
+indent() {
+    awk -v unit="$1" '{printf "%s%s\n", unit, $0}'
+}
+
+motd() {
+    local -r bar_width='60'
+    local -r indent_unit='    '
+
+    uname -srvmo
+    hostname | figlet
+    uptime
+
+    echo
+
+    printf 'tmux sessions: %d\n' "$(tmux ls 2> /dev/null | wc -l)"
+
+    echo
+
+    echo 'Resources'
+    (
+        motd_mem "$bar_width"
+        motd_disk "$bar_width"
+        motd_batt "$bar_width"
+    ) \
+    | column -t \
+    | indent "$indent_unit"
+
+    echo
+
+    echo 'Network'
+    echo "${indent_unit}interfaces:"
+    (ifconfig; iwconfig) 2> /dev/null \
+    | awk '
+        /^[^ ]/ {
+            device = $1
+            sub(":$", "", device)
+            if ($4 ~ "ESSID:") {
+                _essid = $4
+                sub("^ESSID:\"", "", _essid)
+                sub("\"$", "", _essid)
+                essid[device] = _essid
+            }
+            next
+        }
+
+        /^ / && $1 == "inet" {
+            address[device] = $2
+            next
+        }
+
+        /^ +Link Quality=[0-9]+\/[0-9]+ +Signal level=/ {
+            split($2, lq_parts_eq, "=")
+            split(lq_parts_eq[2], lq_parts_slash, "/")
+            cur = lq_parts_slash[1]
+            max = lq_parts_slash[2]
+            link[device] = cur / max * 100
+            next
+        }
+
+        END {
+            for (device in address)
+                if (device != "lo") {
+                    l = link[device]
+                    e = essid[device]
+                    l = l ? sprintf("%.0f%%", l) : "--"
+                    e = e ? e : "--"
+                    print device, address[device], e, l
+                }
+        }
+        ' \
+    | column -t \
+    | indent "${indent_unit}${indent_unit}"
+
+    echo "${indent_unit}servers:"
+    # WARN: ensure: $USER ALL=(ALL) NOPASSWD:/bin/netstat
+    sudo -n netstat -tlnp \
+    | awk 'NR > 2 {print $7}' \
+    | awk -F/ '{print $2}' \
+    | sort -u \
+    | xargs \
+    | column -t \
+    | indent "${indent_unit}${indent_unit}"
+}