feat: Improve Codespaces configuration (#1079)

.devcontainer/codespaces.yml

@@ -3,7 +3,8 @@ services:
     container_name: dsm
     image: vdsm/virtual-dsm
     environment:
-      RAM_SIZE: "max"
+      ALLOCATE: "Y"
+      RAM_SIZE: "half"
       DISK_SIZE: "max"
       CPU_CORES: "max"
     devices:

.devcontainer/devcontainer.json

@@ -2,9 +2,7 @@
   "name": "Virtual DSM",
   "service": "dsm",
   "containerEnv": {
-    "RAM_SIZE": "max",
+    "ALLOCATE": "Y"
-    "DISK_SIZE": "max",
-    "CPU_CORES": "max"
   },  
   "forwardPorts": [5000],  
   "portsAttributes": {

src/entry.sh

@@ -18,8 +18,8 @@ cd /run
 . proc.sh       # Initialize processor
 . serial.sh     # Initialize serialport
 . power.sh      # Configure shutdown
-. config.sh     # Configure arguments
 . memory.sh     # Check available memory
+. config.sh     # Configure arguments
 . finish.sh     # Finish initialization
 
 trap - ERR

src/memory.sh

@@ -2,7 +2,7 @@
 set -Eeuo pipefail
 
 RAM_AVAIL=$(free -b | grep -m 1 Mem: | awk '{print $7}')
-  
+
 if [[ "$RAM_CHECK" != [Nn]* && "${RAM_SIZE,,}" != "max" && "${RAM_SIZE,,}" != "half" ]]; then
 
   AVAIL_MEM=$(formatBytes "$RAM_AVAIL")
@@ -59,15 +59,15 @@ if [[ "${RAM_SIZE,,}" == "max" ]]; then
       RAM_WANTED=$(( RAM_WANTED / 1073741825 ))
 
       if (( "$RAM_WANTED" < 1 )); then
-  
+
         RAM_WANTED=$(( RAM_AVAIL - RAM_SPARE ))
         RAM_WANTED=$(( RAM_WANTED / 1048577 ))
-  
+
         if (( "$RAM_WANTED" < 1 )); then
 
           RAM_WANTED=$(( RAM_AVAIL ))
           RAM_WANTED=$(( RAM_WANTED / 1048577 ))
-            
+
         fi
 
         RAM_SIZE="${RAM_WANTED}M"
@@ -80,7 +80,7 @@ if [[ "${RAM_SIZE,,}" == "max" ]]; then
   else
     RAM_SIZE="${RAM_WANTED}G"
   fi
-  
+
 fi
 
 return 0

src/socket.sh

@@ -1,16 +1,31 @@
 #!/usr/bin/env bash
 set -Eeuo pipefail
 
+lastmsg=""
 path="/run/shm/msg.html"
 
-if [ -f "$path" ] && [ -s "$path" ]; then
+refresh() {
-  echo -n "s: " && cat "$path"
+
-fi
+  [ ! -f "$path" ] && return 0
+  [ ! -s "$path" ] && return 0
+
+  msg=$(< "$path")
+  msg="${msg%$'\n'}"
+
+  [ -z "$msg" ] && return 0
+  [[ "$msg" == "$lastmsg" ]] && return 0
+
+  lastmsg="$msg"
+  echo "s: $msg"
+  return 0
+}
+
+refresh
 
 inotifywait -m "$path" |
   while read -r fp event fn; do
     case "${event,,}" in
-      "modify"* ) echo -n "s: " && cat "$path" ;;
+      "modify"* ) refresh ;;
       "delete_self" ) echo "c: vnc" ;;
     esac    
   done