Merge parser and expressions into repository

actions-workflow-parser/src/workflows/workflow-parser.ts

@@ -0,0 +1,52 @@
+import {
+  TemplateContext,
+  TemplateValidationErrors,
+} from "../templates/template-context"
+import * as templateReader from "../templates/template-reader"
+import { TemplateToken } from "../templates/tokens/template-token"
+import { TraceWriter } from "../templates/trace-writer"
+import { File } from "./file"
+import { WORKFLOW_ROOT } from "./workflow-constants"
+import { getWorkflowSchema } from "./workflow-schema"
+import { YamlObjectReader } from "./yaml-object-reader"
+export interface ParseWorkflowResult {
+  context: TemplateContext
+  value: TemplateToken | undefined
+}
+
+export function parseWorkflow(
+  entryFileName: string,
+  files: File[],
+  trace: TraceWriter
+): ParseWorkflowResult {
+  const context = new TemplateContext(
+    new TemplateValidationErrors(),
+    getWorkflowSchema(),
+    trace
+  )
+
+  // Add file ids
+  files.forEach((x) => context.getFileId(x.name))
+
+  const fileId = context.getFileId(entryFileName)
+  const fileContent = files[fileId - 1].content
+  const reader = new YamlObjectReader(context, fileId, fileContent)
+  if (context.errors.count > 0) {
+    // The file is not valid YAML, template errors could be misleading
+    return {
+      context,
+      value: undefined,
+    }
+  }
+  const result = templateReader.readTemplate(
+    context,
+    WORKFLOW_ROOT,
+    reader,
+    fileId
+  )
+
+  return <ParseWorkflowResult>{
+    context,
+    value: result,
+  }
+}