git-credential-manager add linux support

Signed-off-by: Hendrik Bruinsma <hbruinsma@xs4some.nl>

Author: readefries

Casks/g/git-credential-manager.rb

@@ -1,11 +1,16 @@
 cask "git-credential-manager" do
   arch arm: "arm64", intel: "x64"
+  os macos: "osx", linux: "linux"
+
+  container_ext = on_system_conditional linux: "tar.gz", macos: "pkg"
 
   version "2.7.3"
-  sha256 arm:   "9b4a4008b505a5878a4ee3e7e906b84cbc595e499d92d2c382e0a9f587a8861a",
-         intel: "5638e6aef7dfc097ba5f9ceb6fcefaa05187859404de19a680e329bd97047f17"
+  sha256 arm:          "9b4a4008b505a5878a4ee3e7e906b84cbc595e499d92d2c382e0a9f587a8861a",
+         intel:        "5638e6aef7dfc097ba5f9ceb6fcefaa05187859404de19a680e329bd97047f17",
+         arm64_linux:  "291763d626106891d794b17bd7c02fe77c3d9924193fdde9e284d1d1f3fe5c21",
+         x86_64_linux: "c7935c3e1b22681d56011b580086aeb6d60f3f0aaf6ef9c581480356988ff804"
 
-  url "https://github.com/git-ecosystem/git-credential-manager/releases/download/v#{version.major_minor_patch}/gcm-osx-#{arch}-#{version.major_minor_patch}.pkg",
+  url "https://github.com/git-ecosystem/git-credential-manager/releases/download/v#{version.major_minor_patch}/gcm-#{os}-#{arch}-#{version.major_minor_patch}.#{container_ext}",
       verified: "github.com/git-ecosystem/git-credential-manager/"
   name "Git Credential Manager"
   desc "Cross-platform Git credential storage for multiple hosting providers"
@@ -16,16 +21,25 @@
     strategy :github_latest
   end
 
-  pkg "gcm-osx-#{arch}-#{version}.pkg"
+  on_macos do
+    pkg "gcm-osx-#{arch}-#{version}.pkg"
+
+    uninstall script:  {
+                executable: "/usr/local/share/gcm-core/uninstall.sh",
+                sudo:       true,
+              },
+              pkgutil: "com.microsoft.GitCredentialManager"
+
+    zap trash: [
+      "~/Library/Preferences/git-credential-manager-ui.plist",
+      "~/Library/Preferences/git-credential-manager.plist",
+    ]
+  end
+
+  on_linux do
+    depends_on formula: "icu4c"
 
-  uninstall script:  {
-              executable: "/usr/local/share/gcm-core/uninstall.sh",
-              sudo:       true,
-            },
-            pkgutil: "com.microsoft.GitCredentialManager"
+    binary "git-credential-manager"
+  end
 
-  zap trash: [
-    "~/Library/Preferences/git-credential-manager-ui.plist",
-    "~/Library/Preferences/git-credential-manager.plist",
-  ]
 end