Simplify conversion to human-readable units

[khome.git] / home / lib / login_functions.sh

diff --git a/home/lib/login_functions.sh b/home/lib/login_functions.sh
index 490d739..e51a2fa 100644 (file)
--- a/home/lib/login_functions.sh
+++ b/home/lib/login_functions.sh
@@ -28,8 +28,27 @@ notify_done() {
 
 ## p : string -> unit
 p() {
+    local -r usage='Usage: p [FILE] NAME'
+    local name
+    local file
+
+    case "$#" in
+        0)
+            echo "$usage" >&2
+            return 1;;
+        1)
+            file=~/._p/p
+            name="$1";;
+        2)
+            file="$1"
+            name="$2";;
+        *)
+            echo "$usage" >&2
+            return 1;;
+    esac
+
     awk \
-        -v _s="$1" \
+        -v _s="$name" \
         '
             BEGIN {_s = tolower(_s)}
 
@@ -73,7 +92,7 @@ p() {
                 }
             }
         ' \
-        ~/._p/p \
+        "$file" \
         | xsel -i -b -t 30000
 }
 
@@ -237,32 +256,12 @@ top_commands() {
 }
 
 ## Top Disk-Using directories
-## TODO: Consider using numfmt instead of awk
 ## tdu : path-string -> (size:number * directory:path-string) list
 tdu() {
     local -r root_path="$1"
 
-    du "$root_path" \
-    | awk '
-        {
-            size = $1
-            path = $0
-            sub("^" $1 "\t+", "", path)
-            paths[path] = size
-            if (size > max)
-                max = size
-        }
-
-        END {
-            for (path in paths) {
-                size = paths[path]
-                pct = 100 * (size / max)
-                gb = size / 1024 / 1024
-                printf("%6.2f %3d%% %s\n", gb, pct, path)
-            }
-        }
-    ' \
-    | sort -r -n -k 1 \
+    du -h "$root_path" \
+    | sort -r -h -k 1 \
     | head -50 \
     | tac
     # A slight optimization: head can exit before traversing the full input.
@@ -274,14 +273,8 @@ tduf() {
     find "$@" -type f -printf '%s\t%p\0' \
     | sort -z -n -k 1 \
     | tail -z -n 50 \
-    | gawk -v RS='\0' '
-        {
-            size = $1
-            path = $0
-            sub("^" $1 "\t+", "", path)
-            gb = size / 1024 / 1024 / 1024
-            printf("%f\t%s\n", gb, path)
-        }'
+    | numfmt -z --to=iec \
+    | tr '\0' '\n'
 }
 
 # Most-recently modified file system objects
@@ -655,11 +648,54 @@ status() {
 
     echo 'accounting'
 
-    printf '%stmux\n%ssessions %d, clients %d\n' \
-        "$indent_unit" \
-        "${indent_unit}${indent_unit}" \
-        "$(tmux list-sessions 2> /dev/null | wc -l)" \
-        "$(tmux list-clients  2> /dev/null | wc -l)"
+    # TODO Bring back seesion and client listing, but per server/socket.
+    printf '%stmux\n' "$indent_unit"
+    ps -eo comm,cmd \
+    | awk '
+        # Expecting lines like:
+        #     "tmux: server    tmux -L pistactl new-session -d -s pistactl"
+        #     "tmux: client    tmux -L foo"
+        #     "tmux: client    tmux -Lbar"
+        #     "tmux: client    tmux"
+        #     "tmux: server    tmux -L foo -S bar" <-- -S takes precedence
+        /^tmux:/ {
+            # XXX This of course assumes pervasive usage of -L
+            # TODO Handle -S
+            role=$2
+
+            split($0, sides_of_S, "-S")
+            split(sides_of_S[2], words_right_of_S, FS)
+
+            split($0, sides_of_L, "-L")
+            split(sides_of_L[2], words_right_of_L, FS)
+
+            if (words_right_of_S[1]) {
+                sock = "path." words_right_of_S[1]
+            } else if (words_right_of_L[1]) {
+                sock = "name." words_right_of_L[1]
+            } else {
+                sock = "default"
+            }
+
+            roles[role]++
+            socks[sock]++
+            count[role, sock]++
+        }
+
+        END {
+            for (sock in socks) {
+                clients = count["client", sock]
+                printf "%s ", sock
+                if (clients) {
+                    printf "<-> %d", clients
+                }
+                printf "\n"
+            }
+            printf "\n"
+        }' \
+    | sort \
+    | column -t \
+    | indent "${indent_unit}${indent_unit}"
 
     echo