feat: add manifest function

src/manifest.ts

@@ -0,0 +1,62 @@
+const pkg = require('../package')
+
+/**
+ * A manifest describing the capabilites of a processor.
+ */
+export interface Manifest {
+  /**
+   * A description of the Stencila package in which this
+   * processor is implemented
+   */
+  stencila: {},
+
+  /**
+   * Services that this processor implements
+   */
+  services: {
+    /**
+     * A list of MIME types that the processor is able to import
+     */
+    import: Array<string>
+
+    /**
+     * A list of MIME types that the processor is able to export
+     */
+    export: Array<string>
+
+    /**
+     * A list of types that this processor is able to compile
+     */
+    compile: Array<string>
+
+    /**
+     * A list of types that this processor is able to build
+     */
+    build: Array<string>
+
+    /**
+     * A list of types that this processor is able to execute
+     */
+    execute: Array<string>
+  }
+}
+
+/**
+ * Get the manifest for this processor
+ */
+export default function manifest (): Manifest {
+  return {
+    stencila: {
+      name: pkg.name,
+      url: pkg.homepage,
+      version: pkg.version
+    },
+    services: {
+      import: ['application/ld+json'],
+      export: ['application/ld+json'],
+      compile: [],
+      build: [],
+      execute: []
+    }
+  }
+}