kill off maybe maybe type annotations

Author: alsuren

packages/jest-config/src/valid_config.js

@@ -20,7 +20,7 @@ export default ({
   browser: false,
   cache: true,
   cacheDirectory: '/tmp/user/jest',
-  changedFilesSinceCommit: null,
+  changedFilesSinceCommit: '',
   changedFilesWithAncestor: false,
   clearMocks: false,
   collectCoverage: true,

test_utils.js

@@ -13,7 +13,7 @@ import type {GlobalConfig, ProjectConfig} from 'types/Config';
 
 const DEFAULT_GLOBAL_CONFIG: GlobalConfig = {
   bail: false,
-  changedFilesSinceCommit: null,
+  changedFilesSinceCommit: '',
   changedFilesWithAncestor: false,
   collectCoverage: false,
   collectCoverageFrom: [],

types/ChangedFiles.js

@@ -12,7 +12,7 @@ import type {Path} from 'types/Config';
 export type Options = {|
   lastCommit?: boolean,
   withAncestor?: boolean,
-  sinceCommit?: ?string,
+  sinceCommit?: string,
 |};
 
 export type ChangedFiles = Set<Path>;

types/Config.js

@@ -76,7 +76,7 @@ export type InitialOptions = {
   cacheDirectory?: Path,
   clearMocks?: boolean,
   changedFilesWithAncestor?: boolean,
-  changedFilesSinceCommit?: ?string,
+  changedFilesSinceCommit?: string,
   collectCoverage?: boolean,
   collectCoverageFrom?: Array<Glob>,
   collectCoverageOnlyFrom?: {[key: string]: boolean},
@@ -159,7 +159,7 @@ export type SnapshotUpdateState = 'all' | 'new' | 'none';
 export type GlobalConfig = {|
   bail: boolean,
   changedFilesWithAncestor: boolean,
-  changedFilesSinceCommit: ?string,
+  changedFilesSinceCommit?: string,
   collectCoverage: boolean,
   collectCoverageFrom: Array<Glob>,
   collectCoverageOnlyFrom: ?{[key: string]: boolean},