[powershell] - Add lts and remove deprecated versions.

Author: Kaniska244

src/powershell/devcontainer-feature.json

@@ -1,6 +1,6 @@
 {
     "id": "powershell",
-    "version": "1.5.1",
+    "version": "1.6.0",
     "name": "PowerShell",
     "documentationURL": "https://github.com/devcontainers/features/tree/main/src/powershell",
     "description": "Installs PowerShell along with needed dependencies. Useful for base Dockerfiles that often are missing required install dependencies like gpg.",
@@ -9,10 +9,10 @@
             "type": "string",
             "proposals": [
                 "latest",
+                "lts",
                 "none",
-                "7.4",
-                "7.3",
-                "7.2"
+                "7.5",
+                "7.4"
             ],
             "default": "latest",
             "description": "Select or enter a version of PowerShell."

test/powershell/scenarios.json

@@ -3,6 +3,7 @@
     "image": "mcr.microsoft.com/devcontainers/base:noble",
     "features": {
       "powershell": {
+        "version": "lts",
         "modules": "az.resources, az.storage",
         "powershellProfileURL": "https://raw.githubusercontent.com/codspace/powershell-profile/main/Test-Profile.ps1"
       }
@@ -31,6 +32,14 @@
       "powershell": {}
     }
   },
+  "validate_powershell_installation_spec": {
+    "image": "mcr.microsoft.com/devcontainers/base:noble",
+    "features": {
+      "powershell": {
+        "version": "7.5"
+      }
+    }
+  },
   "powershell_alma_linux": {
     "image": "almalinux:9",
     "features": {

test/powershell/validate_powershell_installation_spec.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+
+set -e
+
+# Import test library for `check` command
+source dev-container-features-test-lib
+
+# Extension-specific tests
+check "pwsh file is symlink" bash -c "[ -L /usr/bin/pwsh ]"
+check "pwsh symlink is registered as shell" bash -c "[ $(grep -c '/usr/bin/pwsh' /etc/shells) -eq 1 ]"
+check "pwsh target is correct" bash -c "[ $(readlink /usr/bin/pwsh) = /opt/microsoft/powershell/7/pwsh ]"
+check "pwsh target is registered as shell" bash -c "[ $(grep -c '/opt/microsoft/powershell/7/pwsh' /etc/shells) -eq 1 ]"
+check "pwsh owner is root" bash -c "[ $(stat -c %U /opt/microsoft/powershell/7/pwsh) = root ]"
+check "pwsh group is root" bash -c "[ $(stat -c %G /opt/microsoft/powershell/7/pwsh) = root ]"
+check "pwsh file mode is -rwxr-xr-x" bash -c "[ $(stat -c '%A' /opt/microsoft/powershell/7/pwsh) = '-rwxr-xr-x' ]"
+check "pwsh is in PATH" bash -c "command -v pwsh"
+
+# Report result
+reportResults
+