feat(list,status,uninstall): Detect dependency

- ScoopInstaller#4515

Cleaner take 2 of #231
#2, #140, #61

CHANGELOG.md

@@ -4,6 +4,10 @@
 
 🎉🎉 YAML typed manifest and archived manifest installation support 🎉🎉
 
+- **scoop-uninstall**: Warn user when he tries to uninstall dependency, which is still needed
+- **scoop-status**: Detect if applications, which were installed as dependency are still needed
+- **scoop-list**: Show if application was installed as dependency
+    - If it was installed as dependency, the parent application will be shown as `{application}` in blue
 - Adopt new resolve function for parameter passing
     - **scoop-install**
     - **scoop-depends**

lib/Applications.ps1

@@ -176,6 +176,7 @@ function app_status($app, $global) {
 
     $install_info = install_info $app $status.version $global
 
+    $status.install_info = $install_info
     $status.failed = (!$install_info -or !$status.version)
     $status.hold = ($install_info.hold -eq $true)
 

lib/Uninstall.ps1

@@ -70,6 +70,10 @@ function Uninstall-ScoopApplication {
     $install = install_info $App $version $Global
     $architecture = $install.architecture
 
+    if ($install.dependency_for -and (installed $install.dependency_for)) {
+        Write-UserMessage -Message "Uninstalling dependency required for installed application '$($install.dependency_for)'. This operation could negatively influence the said application." -Warning
+    }
+
     Invoke-ManifestScript -Manifest $manifest -ScriptName 'pre_uninstall' -Architecture $architecture
     run_uninstaller $manifest $architecture $dir
     Invoke-ManifestScript -Manifest $manifest -ScriptName 'post_uninstall' -Architecture $architecture

libexec/scoop-list.ps1

@@ -89,6 +89,11 @@ $Applications | Sort-Object @SortSplat | Where-Object { !$Query -or ($_.name -ma
     if ($installInfo.architecture -and ($DefaultArchitecture -ne $installInfo.architecture)) {
         Write-Host " {$($installInfo.architecture)}" -ForegroundColor 'DarkRed' -NoNewline
     }
+
+    if ($installInfo.dependency_for) {
+        Write-Host " {$($installInfo.dependency_for)}" -ForegroundColor 'DarkBlue' -NoNewline
+    }
+
     Write-Host ''
 }
 Write-Host ''

libexec/scoop-status.ps1

@@ -1,11 +1,13 @@
 # Usage: scoop status [<OPTIONS>]
 # Summary: Show status and check for available updates for all installed applications.
-# Help: Status command will check these factors and report if any of them is not satisfied:
+# Help: Status command will check various factors and report if any of them is not satisfied.
+# Following factors are checked:
 #    Scoop installation is up-to-date.
-#    Installed applications use the latest version.
-#    Remote manifests of installed applications are available.
+#    Every installed application use the latest version.
+#    Remote manifests of installed applications are accessible.
 #    All applications are successfully installed.
 #    All runtime dependencies are installed.
+#    All installed dependencies are still needed.
 #
 # Options:
 #   -h, --help      Show help for this command.
@@ -35,6 +37,7 @@ $Outdated = @()
 $Removed = @()
 $MissingDependencies = @()
 $Onhold = @()
+$CouldBeRemoved = @()
 $null, $null, $_err = Resolve-GetOpt $args
 
 if ($_err) { Stop-ScoopExecution -Message "scoop status: $_err" -ExitCode 2 }
@@ -60,6 +63,8 @@ if ($UpdateRequired) {
     Write-UserMessage -Message 'Scoop is up to date' -Success
 }
 
+$installedApps = @((installed_apps $true) + (installed_apps $false))
+
 # Local and global applications
 foreach ($global in ($true, $false)) {
     $dir = appsdir $global
@@ -76,6 +81,9 @@ foreach ($global in ($true, $false)) {
             $Outdated += @{ $app = @($status.version, $status.latest_version) }
             if ($status.hold) { $Onhold += @{ $app = @($status.version, $status.latest_version) } }
         }
+        if (($status.install_info.dependency_for) -and ($installedApps -notcontains $status.install_info.dependency_for)) {
+            $CouldBeRemoved += $app
+        }
     }
 }
 
@@ -120,6 +128,13 @@ if ($MissingDependencies) {
     }
 }
 
+if ($CouldBeRemoved) {
+    Write-UserMessage -Message 'These dependencies could be removed:' -Color 'DarkCyan'
+    $CouldBeRemoved | ForEach-Object {
+        Write-UserMessage -Message "    $_"
+    }
+}
+
 if (!$UpdateRequired -and !$Removed -and !$Failed -and !$MissingDependencies -and !$Outdated) { Write-UserMessage -Message 'Everything is ok!' -Success }
 
 exit $ExitCode