Show a deprecated badge on installed formulae

brew info already returns deprecated. Without a badge, a
formulae-only filter hid those rows and there was no visual
cue on the list.

Fixes #180

Sources/BrewCLI/JSON/BrewInfoJSON+Mapping.swift

@@ -46,6 +46,7 @@ private extension BrewInfoFormula {
             linkedKeg: BrewInfoJSON.trimmedOrNil(linkedKeg),
             pinned: pinned,
             kegOnly: kegOnly,
+            deprecated: deprecated,
             caveats: BrewInfoJSON.trimmedOrNil(caveats),
         )
     }
@@ -69,6 +70,7 @@ private extension BrewInfoCask {
             outdated: outdated,
             tap: BrewInfoJSON.trimmedOrNil(tap),
             installedOnRequest: installedOnRequest,
+            deprecated: deprecated,
         )
     }
 }

Sources/BrewCLI/JSON/BrewInfoJSON.swift

@@ -40,6 +40,7 @@ struct BrewInfoFormula: Decodable {
     var kegOnly: Bool
     var caveats: String?
     var outdated: Bool
+    var deprecated: Bool
 
     init(from decoder: Decoder) throws {
         let container = try decoder.container(keyedBy: CodingKeys.self)
@@ -61,6 +62,7 @@ struct BrewInfoFormula: Decodable {
         kegOnly = (try? container.decode(Bool.self, forKey: .kegOnly)) ?? false
         caveats = try? container.decode(String.self, forKey: .caveats)
         outdated = (try? container.decode(Bool.self, forKey: .outdated)) ?? false
+        deprecated = (try? container.decode(Bool.self, forKey: .deprecated)) ?? false
     }
 
     private enum CodingKeys: String, CodingKey {
@@ -80,6 +82,7 @@ struct BrewInfoFormula: Decodable {
         case kegOnly = "keg_only"
         case caveats
         case outdated
+        case deprecated
     }
 }
 
@@ -123,6 +126,7 @@ struct BrewInfoCask: Decodable {
     var installedOnRequest: Bool
     var dependencies: [HomebrewPackageID]
     var outdated: Bool
+    var deprecated: Bool
 
     init(from decoder: Decoder) throws {
         let container = try decoder.container(keyedBy: CodingKeys.self)
@@ -140,6 +144,7 @@ struct BrewInfoCask: Decodable {
             forKeys: [.dependencies, .dependsOn],
         )
         outdated = (try? container.decode(Bool.self, forKey: .outdated)) ?? false
+        deprecated = (try? container.decode(Bool.self, forKey: .deprecated)) ?? false
     }
 
     private enum CodingKeys: String, CodingKey {
@@ -155,6 +160,7 @@ struct BrewInfoCask: Decodable {
         case dependencies
         case dependsOn = "depends_on"
         case outdated
+        case deprecated
     }
 
     var firstDisplayName: String? {

Sources/BrewCore/Models/InstalledBrewPackage.swift

@@ -27,6 +27,8 @@ public struct InstalledBrewPackage: Identifiable, Hashable, Sendable {
     public var pinned: Bool
     /// True when the formula is keg-only (not linked into the prefix by default).
     public var kegOnly: Bool
+    /// True when Homebrew marks the formula/cask deprecated.
+    public var deprecated: Bool
     /// Post-install caveats text, if any.
     public var caveats: String?
 
@@ -97,6 +99,7 @@ public struct InstalledBrewPackage: Identifiable, Hashable, Sendable {
         linkedKeg: String? = nil,
         pinned: Bool = false,
         kegOnly: Bool = false,
+        deprecated: Bool = false,
         caveats: String? = nil,
     ) {
         self.package = package
@@ -111,6 +114,7 @@ public struct InstalledBrewPackage: Identifiable, Hashable, Sendable {
         self.linkedKeg = linkedKeg
         self.pinned = pinned
         self.kegOnly = kegOnly
+        self.deprecated = deprecated
         self.caveats = caveats
     }
 }

Sources/BrewFeatureInstalled/ViewModels/InstalledListRowViewModel.swift

@@ -56,6 +56,10 @@ final class InstalledListRowViewModel {
         package.outdated && availableVersionLabel != nil
     }
 
+    var isDeprecated: Bool {
+        package.deprecated
+    }
+
     var versionPresentation: InstalledListRowVersionPresentation {
         if showsUpgradeAvailable, let latest = availableVersionLabel {
             return .upgrade(current: installedVersionLabel, latest: latest)
@@ -71,6 +75,8 @@ final class InstalledListRowViewModel {
         parts.append(installedVersionLabel)
         if showsUpgradeAvailable, let latest = availableVersionLabel {
             parts.append("Upgrade available to \(latest)")
+        } else if isDeprecated {
+            parts.append("Deprecated")
         } else {
             parts.append("Installed and up to date")
         }

Sources/BrewFeatureInstalled/Views/InstalledListRowView.swift

@@ -118,10 +118,16 @@ struct InstalledListRowView: View {
     private func statusBadge(viewModel: InstalledListRowViewModel) -> some View {
         if viewModel.showsUpgradeAvailable {
             InstalledOutdatedBadge()
+        } else if viewModel.isDeprecated {
+            Image(systemName: "exclamationmark.triangle.fill")
+                .font(.body)
+                .foregroundStyle(Color.brewStatusWarning)
+                .help("Deprecated")
         } else {
             Image(systemName: "checkmark.circle.fill")
                 .font(.body)
                 .foregroundStyle(Color.brewStatusSuccess)
+                .help("Installed and up to date")
         }
     }
 

Tests/BrewCLITests/BrewInfoJSONMappingTests.swift

@@ -104,4 +104,27 @@ struct BrewInfoJSONMappingTests {
 
         #expect(payload.installedPackages().map(\.name) == ["aria2", "Firefox", "Zsh"])
     }
+
+    @Test func `deprecated formulae and casks keep the flag from brew info json`() throws {
+        let json = """
+        {
+          "formulae": [
+            { "name": "youtube-dl", "deprecated": true },
+            { "name": "git", "deprecated": false }
+          ],
+          "casks": [
+            { "token": "docker", "deprecated": true },
+            { "token": "alfred" }
+          ]
+        }
+        """
+
+        let payload = try JSONDecoder().decode(BrewInfoJSON.self, from: Data(json.utf8))
+        let packages = payload.installedPackages()
+
+        #expect(packages.first { $0.name == "youtube-dl" }?.deprecated == true)
+        #expect(packages.first { $0.name == "git" }?.deprecated == false)
+        #expect(packages.first { $0.name == "docker" }?.deprecated == true)
+        #expect(packages.first { $0.name == "alfred" }?.deprecated == false)
+    }
 }

Tests/BrewFeatureInstalledTests/InstalledListRowViewModelTests.swift

@@ -52,6 +52,18 @@ struct InstalledListRowViewModelTests {
         #expect(viewModel.name == "Visual Studio Code")
     }
 
+    @Test func `deprecated package is not described as up to date`() {
+        var package = InstalledBrewPackage.fixture(name: "youtube-dl")
+        package.deprecated = true
+        let viewModel = InstalledListRowViewModel(
+            package: package,
+            brewCommandCenter: NoopBrewCommandCenter.forTesting(),
+        )
+        #expect(viewModel.isDeprecated)
+        #expect(viewModel.accessibilitySummary.contains("Deprecated"))
+        #expect(!viewModel.accessibilitySummary.contains("up to date"))
+    }
+
     @Test func `observeRowUpdates applies first phase from noop center`() async {
         let package = InstalledBrewPackage.fixture(name: "git", kind: .formula)
         let center = NoopBrewCommandCenter.forTesting()