fix(commands): Handling broken aliases (#6141)

CHANGELOG.md

@@ -4,6 +4,7 @@
 
 - **scoop-download|install|update:** Fallback to default downloader when aria2 fails ([#4292](https://github.com/ScoopInstaller/Scoop/issues/4292))
 - **decompress**: `Expand-7zipArchive` only delete temp dir / `$extractDir` if it is empty ([#6092](https://github.com/ScoopInstaller/Scoop/issues/6092))
+- **commands**: Handling broken aliases ([#6141](https://github.com/ScoopInstaller/Scoop/issues/6141))
 
 ### Code Refactoring
 

lib/commands.ps1

@@ -4,7 +4,7 @@
 
 function command_files {
     (Get-ChildItem "$PSScriptRoot\..\libexec") + (Get-ChildItem "$scoopdir\shims") |
-        Where-Object 'scoop-.*?\.ps1$' -Property Name -Match
+    Where-Object 'scoop-.*?\.ps1$' -Property Name -Match
 }
 
 function commands {
@@ -86,7 +86,9 @@ function rm_alias {
     }
 
     info "Removing alias '$name'..."
-    Remove-Item "$(shimdir $false)\scoop-$name.ps1"
+    if (Test-Path "$(shimdir $false)\scoop-$name.ps1") {
+        Remove-Item "$(shimdir $false)\scoop-$name.ps1"
+    }
     $aliases.PSObject.Properties.Remove($name)
     set_config ALIAS $aliases | Out-Null
 }
@@ -98,11 +100,19 @@ function list_aliases {
 
     $aliases = get_config ALIAS ([PSCustomObject]@{})
     $alias_info = $aliases.PSObject.Properties.Name | Where-Object { $_ } | ForEach-Object {
+        # Mark the alias as <BROKEN>, if the alias script file does NOT exist.
+        if (!(Test-Path "$(shimdir $false)\scoop-$_.ps1")) {
+            [PSCustomObject]@{
+                Name    = $_
+                Command = '<BROKEN>'
+            }
+            return
+        }
         $content = Get-Content (command_path $_)
         [PSCustomObject]@{
             Name    = $_
-            Summary = (summary $content).Trim()
             Command = ($content | Select-Object -Skip 1).Trim()
+            Summary = (summary $content).Trim()
         }
     }
     if (!$alias_info) {