move getQueryStringFromLocation to ui-components

scm-ui-components/packages/ui-components/src/index.js

@@ -22,6 +22,7 @@ export { default as ProtectedRoute } from "./ProtectedRoute.js";
 export { default as Help } from "./Help";
 export { default as HelpIcon } from "./HelpIcon";
 export { default as Tooltip } from "./Tooltip";
+// TODO do we need this? getPageFromMatch is already exported by urls
 export { getPageFromMatch } from "./urls";
 export { default as Autocomplete} from "./Autocomplete";
 export { default as BranchSelector } from "./BranchSelector";

scm-ui-components/packages/ui-components/src/urls.js

@@ -1,4 +1,6 @@
 // @flow
+import queryString from "query-string";
+
 export const contextPath = window.ctxPath || "";
 
 export function withContextPath(path: string) {
@@ -27,3 +29,7 @@ export function getPageFromMatch(match: any) {
   }
   return page;
 }
+
+export function getQueryStringFromLocation(location: any) {
+  return location.search ? queryString.parse(location.search).q : undefined;
+}

scm-ui-components/packages/ui-components/src/urls.test.js

@@ -1,5 +1,5 @@
 // @flow
-import {concat, getPageFromMatch, withEndingSlash} from "./urls";
+import { concat, getPageFromMatch, getQueryStringFromLocation, withEndingSlash } from "./urls";
 
 describe("tests for withEndingSlash", () => {
 
@@ -47,3 +47,28 @@ describe("tests for getPageFromMatch", () => {
     expect(getPageFromMatch(match)).toBe(42);
   });
 });
+
+describe("tests for getQueryStringFromLocation", () => {
+
+  function createLocation(search: string) {
+    return {
+      search
+    };
+  }
+
+  it("should return the query string", () => {
+    const location = createLocation("?q=abc");
+    expect(getQueryStringFromLocation(location)).toBe("abc");
+  });
+
+  it("should return query string from multiple parameters", () => {
+    const location = createLocation("?x=a&y=b&q=abc&z=c");
+    expect(getQueryStringFromLocation(location)).toBe("abc");
+  });
+
+  it("should return undefined if q is not available", () => {
+    const location = createLocation("?x=a&y=b&z=c");
+    expect(getQueryStringFromLocation(location)).toBeUndefined();
+  });
+
+});