Feature: Find files in repo (#15028)

* Create finding files page ui in repo page

* Get tree entries for find repo files.

* Move find files JS to individual file.

* gen swagger.

* Add enry.IsVendor to exclude entries

Co-authored-by: delvh <dev.lh@web.de>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>

web_src/js/features/repo-findfile.js

@@ -0,0 +1,67 @@
+import $ from 'jquery';
+
+import {svg} from '../svg.js';
+import {strSubMatch} from '../utils.js';
+const {csrf} = window.config;
+
+const threshold = 50;
+let files = [];
+let $repoFindFileInput, $repoFindFileTableBody, $repoFindFileNoResult;
+
+function filterRepoFiles(filter) {
+  const treeLink = $repoFindFileInput.attr('data-url-tree-link');
+  $repoFindFileTableBody.empty();
+
+  const fileRes = [];
+  if (filter) {
+    for (let i = 0; i < files.length && fileRes.length < threshold; i++) {
+      const subMatch = strSubMatch(files[i], filter);
+      if (subMatch.length > 1) {
+        fileRes.push(subMatch);
+      }
+    }
+  } else {
+    for (let i = 0; i < files.length && i < threshold; i++) {
+      fileRes.push([files[i]]);
+    }
+  }
+
+  const tmplRow = `<tr><td><a></a></td></tr>`;
+
+  $repoFindFileNoResult.toggle(fileRes.length === 0);
+  for (const matchRes of fileRes) {
+    const $row = $(tmplRow);
+    const $a = $row.find('a');
+    $a.attr('href', `${treeLink}/${matchRes.join('')}`);
+    const $octiconFile = $(svg('octicon-file')).addClass('mr-3');
+    $a.append($octiconFile);
+    // if the target file path is "abc/xyz", to search "bx", then the matchRes is ['a', 'b', 'c/', 'x', 'yz']
+    // the matchRes[odd] is matched and highlighted to red.
+    for (let j = 0; j < matchRes.length; j++) {
+      if (!matchRes[j]) continue;
+      const $span = $('<span>').text(matchRes[j]);
+      if (j % 2 === 1) $span.addClass('ui text red');
+      $a.append($span);
+    }
+    $repoFindFileTableBody.append($row);
+  }
+}
+
+async function loadRepoFiles() {
+  files = await $.ajax({
+    url: $repoFindFileInput.attr('data-url-data-link'),
+    headers: {'X-Csrf-Token': csrf}
+  });
+  filterRepoFiles($repoFindFileInput.val());
+}
+
+export function initFindFileInRepo() {
+  $repoFindFileInput = $('#repo-file-find-input');
+  if (!$repoFindFileInput.length) return;
+
+  $repoFindFileTableBody = $('#repo-find-file-table tbody');
+  $repoFindFileNoResult = $('#repo-find-file-no-result');
+  $repoFindFileInput.on('input', () => filterRepoFiles($repoFindFileInput.val()));
+
+  loadRepoFiles();
+}