fix regex

extension/src/utils/flow-version.ts

@@ -31,13 +31,13 @@ export function extractFlowCLIVersion (buffer: Buffer | string): string | null {
   const output = buffer.toString()
 
   const versionRegex = /Version: v((0|[1-9]\d*)\.(0|[1-9]\d*)\.(0|[1-9]\d*)(?:-((?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*)(?:\.(?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*))*))?(?:\+([0-9a-zA-Z-]+(?:\.[0-9a-zA-Z-]+)*))?)/g
-  let versionMatch = output.match(versionRegex)
+  let versionMatch = versionRegex.exec(output)
 
   if (versionMatch != null) return versionMatch[1]
 
   // Fallback regex to semver if versionRegex fails (protect against future changes to flow version output)
   const fallbackRegex = /(((0|[1-9]\d*)\.(0|[1-9]\d*)\.(0|[1-9]\d*)(?:-((?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*)(?:\.(?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*))*))?(?:\+([0-9a-zA-Z-]+(?:\.[0-9a-zA-Z-]+)*)))?)/g
-  versionMatch ??= output.match(fallbackRegex)
+  versionMatch ??= fallbackRegex.exec(output)
   if (versionMatch != null) {
     void vscode.window.showWarningMessage(`Unfamiliar Flow CLI version format. Assuming that version is ${versionMatch[1]}. Please report this issue to the Flow team.`)
     return versionMatch[1]

extension/test/unit/parser.test.ts

@@ -3,7 +3,7 @@ import { ASSERT_EQUAL } from '../globals'
 
 suite('Parsing Unit Tests', () => {
   test('Flow CLI Version Extraction', async () => {
-    let versionTest: Buffer = Buffer.from('Version: v0.1.0\nCommit: 0a1b2c3d')
+    let versionTest: Buffer = Buffer.from('Foobar123\nVersion: v0.1.0\nCommit: 0a1b2c3d')
     let formatted = extractFlowCLIVersion(versionTest)
     ASSERT_EQUAL(formatted, 'v0.1.0')