Show messages when (un)installing Casks

Addresses an issue where it can be unclear at times exactly which part
of the (un|re)installation processes is reporting an error. See
https://github.com/caskroom/homebrew-cask/issues/30968

Library/Homebrew/cask/lib/hbc/installer.rb

@@ -85,6 +85,8 @@ module Hbc
       print_caveats
       fetch
       uninstall_if_neccessary
+
+      oh1 "Installing Cask #{@cask}"
       stage
       install_artifacts
       enable_accessibility_access
@@ -322,7 +324,7 @@ module Hbc
     end
 
     def uninstall
-      odebug "Hbc::Installer#uninstall"
+      oh1 "Uninstalling Cask #{@cask}"
       disable_accessibility_access
       uninstall_artifacts
       purge_versioned_files

Library/Homebrew/test/cask/cli/install_spec.rb

@@ -1,4 +1,18 @@
 describe Hbc::CLI::Install, :cask do
+  it "displays the installation progress" do
+    output = Regexp.new <<-EOS.undent
+      ==> Downloading file:.*/caffeine.zip
+      ==> Verifying checksum for Cask local-caffeine
+      ==> Installing Cask local-caffeine
+      ==> Moving App 'Caffeine.app' to '.*/Caffeine.app'.
+      🍺  local-caffeine was successfully installed!
+    EOS
+
+    expect {
+      Hbc::CLI::Install.run("local-caffeine")
+    }.to output(output).to_stdout
+  end
+
   it "allows staging and activation of multiple Casks at once" do
     shutup do
       Hbc::CLI::Install.run("local-transmission", "local-caffeine")

Library/Homebrew/test/cask/cli/reinstall_spec.rb

@@ -1,4 +1,27 @@
 describe Hbc::CLI::Reinstall, :cask do
+  it "displays the reinstallation progress" do
+    caffeine = Hbc::CaskLoader.load_from_file(TEST_FIXTURE_DIR/"cask/Casks/local-caffeine.rb")
+
+    shutup do
+      Hbc::Installer.new(caffeine).install
+    end
+
+    output = Regexp.new <<-EOS.undent
+      ==> Downloading file:.*/caffeine.zip
+      Already downloaded: .*/local-caffeine--1.2.3.zip
+      ==> Verifying checksum for Cask local-caffeine
+      ==> Uninstalling Cask local-caffeine
+      ==> Removing App '.*/Caffeine.app'.
+      ==> Installing Cask local-caffeine
+      ==> Moving App 'Caffeine.app' to '.*/Caffeine.app'.
+      🍺  local-caffeine was successfully installed!
+    EOS
+
+    expect {
+      Hbc::CLI::Reinstall.run("local-caffeine")
+    }.to output(output).to_stdout
+  end
+
   it "allows reinstalling a Cask" do
     shutup do
       Hbc::CLI::Install.run("local-transmission")

Library/Homebrew/test/cask/cli/uninstall_spec.rb

@@ -1,4 +1,21 @@
 describe Hbc::CLI::Uninstall, :cask do
+  it "displays the uninstallation progress" do
+    caffeine = Hbc::CaskLoader.load_from_file(TEST_FIXTURE_DIR/"cask/Casks/local-caffeine.rb")
+
+    shutup do
+      Hbc::Installer.new(caffeine).install
+    end
+
+    output = Regexp.new <<-EOS.undent
+      ==> Uninstalling Cask local-caffeine
+      ==> Removing App '.*/Caffeine.app'.
+    EOS
+
+    expect {
+      Hbc::CLI::Uninstall.run("local-caffeine")
+    }.to output(output).to_stdout
+  end
+
   it "shows an error when a bad Cask is provided" do
     expect {
       Hbc::CLI::Uninstall.run("notacask")