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Use git diff-tree for DiffFileTree on diff pages (#33514)

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Modify Diff View FileTree to show all files

## Changes

* removes Show Status button on diff
* uses `git diff-tree` to generate the file tree for the diff
* doesn't reload the diff tree each time we load more files in the
preview
* selecting and unloaded file will keep loading until that file is
loaded
* removes `DiffFileList.vue` and "Show Stats" in diff options

## Open Questions

* selecting and unloaded file will keep loading until that file is
loaded. Is this behaviour okay? It matches what github does.

### Demo

In this demo I set `git.MAX_GIT_DIFF_FILES=1` in my `app.ini` to
demonstrate a worst case example. In most cases the behaviour isn't
nearly as jarring as we load a bunch of files at a time.


https://github.com/user-attachments/assets/72f29663-d6fc-472d-94fa-7fb5950c2836

---------

Co-authored-by: silverwind <me@silverwind.io>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
This commit is contained in:
Alexander McRae
2025-02-27 16:58:25 -08:00
committed by GitHub
parent 7a8eed13b9
commit aba96f65cd
17 changed files with 352 additions and 224 deletions
Download Patch File Download Diff File Expand all files Collapse all files

69
web_src/js/features/repo-diff.ts
View File

@@ -1,7 +1,7 @@
import $ from 'jquery';
import {initCompReactionSelector} from './comp/ReactionSelector.ts';
import {initRepoIssueContentHistory} from './repo-issue-content.ts';
import {initDiffFileTree, initDiffFileList} from './repo-diff-filetree.ts';
import {initDiffFileTree} from './repo-diff-filetree.ts';
import {initDiffCommitSelect} from './repo-diff-commitselect.ts';
import {validateTextareaNonEmpty} from './comp/ComboMarkdownEditor.ts';
import {initViewedCheckboxListenerFor, countAndUpdateViewedFiles, initExpandAndCollapseFilesButton} from './pull-view-file.ts';
@@ -21,7 +21,7 @@ import {fomanticQuery} from '../modules/fomantic/base.ts';
import {createTippy} from '../modules/tippy.ts';
import {invertFileFolding} from './file-fold.ts';
const {pageData, i18n} = window.config;
const {i18n} = window.config;
function initRepoDiffFileViewToggle() {
$('.file-view-toggle').on('click', function () {
@@ -161,6 +161,7 @@ function initDiffHeaderPopup() {
// Will be called when the show more (files) button has been pressed
function onShowMoreFiles() {
// FIXME: here the init calls are incomplete: at least it misses dropdown & initCompReactionSelector
initRepoIssueContentHistory();
initViewedCheckboxListenerFor();
countAndUpdateViewedFiles();
@@ -168,41 +169,35 @@ function onShowMoreFiles() {
initDiffHeaderPopup();
}
export async function loadMoreFiles(url: string) {
const target = document.querySelector('a#diff-show-more-files');
if (target?.classList.contains('disabled') || pageData.diffFileInfo.isLoadingNewData) {
return;
async function loadMoreFiles(btn: Element): Promise<boolean> {
if (btn.classList.contains('disabled')) {
return false;
}
pageData.diffFileInfo.isLoadingNewData = true;
target?.classList.add('disabled');
btn.classList.add('disabled');
const url = btn.getAttribute('data-href');
try {
const response = await GET(url);
const resp = await response.text();
const $resp = $(resp);
// the response is a full HTML page, we need to extract the relevant contents:
// 1. append the newly loaded file list items to the existing list
// * append the newly loaded file list items to the existing list
$('#diff-incomplete').replaceWith($resp.find('#diff-file-boxes').children());
// 2. re-execute the script to append the newly loaded items to the JS variables to refresh the DiffFileTree
$('body').append($resp.find('script#diff-data-script'));
onShowMoreFiles();
return true;
} catch (error) {
console.error('Error:', error);
showErrorToast('An error occurred while loading more files.');
} finally {
target?.classList.remove('disabled');
pageData.diffFileInfo.isLoadingNewData = false;
btn.classList.remove('disabled');
}
return false;
}
function initRepoDiffShowMore() {
$(document).on('click', 'a#diff-show-more-files', (e) => {
addDelegatedEventListener(document, 'click', 'a#diff-show-more-files', (el, e) => {
e.preventDefault();
const linkLoadMore = e.target.getAttribute('data-href');
loadMoreFiles(linkLoadMore);
loadMoreFiles(el);
});
$(document).on('click', 'a.diff-load-button', async (e) => {
@@ -234,17 +229,49 @@ function initRepoDiffShowMore() {
});
}
async function loadUntilFound() {
const hashTargetSelector = window.location.hash;
if (!hashTargetSelector.startsWith('#diff-') && !hashTargetSelector.startsWith('#issuecomment-')) {
return;
}
while (true) {
// use getElementById to avoid querySelector throws an error when the hash is invalid
// eslint-disable-next-line unicorn/prefer-query-selector
const targetElement = document.getElementById(hashTargetSelector.substring(1));
if (targetElement) {
targetElement.scrollIntoView();
return;
}
// the button will be refreshed after each "load more", so query it every time
const showMoreButton = document.querySelector('#diff-show-more-files');
if (!showMoreButton) {
return; // nothing more to load
}
// Load more files, await ensures we don't block progress
const ok = await loadMoreFiles(showMoreButton);
if (!ok) return; // failed to load more files
}
}
function initRepoDiffHashChangeListener() {
window.addEventListener('hashchange', loadUntilFound);
loadUntilFound();
}
export function initRepoDiffView() {
initRepoDiffConversationForm();
if (!$('#diff-file-list').length) return;
if (!$('#diff-file-boxes').length) return;
initDiffFileTree();
initDiffFileList();
initDiffCommitSelect();
initRepoDiffShowMore();
initDiffHeaderPopup();
initRepoDiffFileViewToggle();
initViewedCheckboxListenerFor();
initExpandAndCollapseFilesButton();
initRepoDiffHashChangeListener();
addDelegatedEventListener(document, 'click', '.fold-file', (el) => {
invertFileFolding(el.closest('.file-content'), el);