[com.circleci.v2] Support CircleCI workflow job matrix (#87)

packages/com.circleci.v2/Config.pkl

@@ -364,6 +364,13 @@ class WorkflowJob {
   /// For more information see the Using Workflows to Orchestrate Jobs page.
   type: "approval"?
 
+  /// Run a parameterized job multiple times with different arguments.
+  ///
+  /// For more information see the how-to guide on [Using Matrix Jobs](https://circleci.com/docs/using-matrix-jobs/).
+  ///
+  /// In order to use the matrix stanza, you must use parameterized jobs.
+  matrix: JobMatrix?
+
   /// Job Filters can have the key branches or tags
   filters: JobFilters?
 
@@ -414,6 +421,19 @@ class FilterSpec {
   ignore: (String|Listing<String>)?
 }
 
+class JobMatrix {
+  /// A map of parameter names to every value the job should be called with
+  parameters: Mapping<String, Listing<String|Number|Boolean>>
+
+  /// Argument maps that should be excluded from the matrix
+  exclude: Listing<Mapping<String, String>>?
+
+  /// An alias for the matrix, usable from another job’s requires stanza.
+  ///
+  /// Defaults to the name of the job being executed
+  alias: String?
+}
+
 typealias Step = AbstractStep|SimpleStepName|OrbStep
 
 typealias SimpleStepName = "checkout"|"setup_remote_docker"|"add_ssh_keyes"|String

packages/com.circleci.v2/PklProject

@@ -17,5 +17,5 @@
 amends "../basePklProject.pkl"
 
 package {
-  version = "1.3.0"
+  version = "1.4.0"
 }