Ensure absolute file paths for diagnostics

Author: Ryan Ashcraft

CHANGELOG.md

@@ -5,6 +5,8 @@
   babel build watcher task - orta
 * Adds support for *.js.flow files ( such as those generated by graphql-js ) which are 
   treated as common JavaScript files - orta
+* Fixes "File not found" error with diagnostics when `flow status --json` provides
+  non-absolute file paths - ryanashcraft #77
 
 ### 4.0
 

lib/flowDiagnostics.js

@@ -58,6 +58,8 @@ async function getDiagnostics(document) {
 	// flow workspace.
 	let rawDiag = await flowFindDiagnostics(filePath);
 	if (rawDiag && rawDiag.messages) {
+		const { flowRoot } = rawDiag;
+
 		rawDiag.messages.forEach((message) => {
 			const {level, messageComponents} = message
 			if (!messageComponents.length) return
@@ -68,7 +70,7 @@ async function getDiagnostics(document) {
 
 			if (range == null) return;
 
-			const file = range.file
+			const file = path.resolve(flowRoot, range.file);
 
 			let diag = {
 				severity: level,