This PR replaces the existing `skip-to` approach for rendering large diffs with paging over the changeset of a git diff, enabling a more efficient way to render the compare view for PR, compare, and commit views.
## Problem
When a user opens a compare page for a large range of commits, Forgejo calculates the entire diff (potentially multiple times) Which consumes significant CPU time on the server and produces an enormous amount of HTML for the browser to parse and display. At some point the page becomes unusable or fails to load entirely.
The previous `skip-to` approach attempted to mitigate this by allowing the user to jump to a specific file or section within the diff. However, this still required the diff process and prepare the full changeset up to that point. It did not fundamentally bound the amount of work done per request: the server could still spend excessive time calculating the Diff. As a result, `skip-to` was not a reliable solution for very large diffs.
TLDR; `--skip-to` is an output-ordering/presentation option, not a performance optimization. [git docs](https://git-scm.com/docs/diff-options#Documentation/diff-options.txt---skip-tofile)
## Solution
This change introduces paging over the changeset of a git diff. Rather than relying on `skip-to`, the diff is now split into manageable pages. Only a subset of the changed files is fetched, highlighted, and rendered at a time.
### Tests for Go changes
- I added test coverage for Go changes...
- [x] in their respective `*_test.go` for unit tests.
- [x] in the `tests/integration` directory if it involves interactions with a live Forgejo server.
- I ran...
- [x] `make pr-go` before pushing
### Documentation
- [ ] I created a pull request [to the documentation](https://codeberg.org/forgejo/docs) to explain to Forgejo users how to use this change.
- [x] I did not document these changes and I do not expect someone else to do it.
### Release notes
- [x] This change will be noticed by a Forgejo user or admin (feature, bug fix, performance, etc.). I suggest to include a release note for this change.
- [ ] This change is not visible to a Forgejo user or admin (refactor, dependency upgrade, etc.). I think there is no need to add a release note for this change.
<!--start release-notes-assistant-->
## Release notes
<!--URL:https://codeberg.org/forgejo/forgejo-->
- Security features
- [PR](https://codeberg.org/forgejo/forgejo/pulls/12808): <!--number 12808 --><!--line 0 --><!--description ZG9uJ3QgcmVuZGVyIGxhcmdlIGNvbXBhcmUgZGlmZg==-->don't render large compare diff<!--description-->
<!--end release-notes-assistant-->
Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/12808
Reviewed-by: Mathieu Fenniak <mfenniak@noreply.codeberg.org>
Related issue: https://codeberg.org/forgejo/forgejo/issues/8581
This should be a nice first step towards RTL support. Future PRs can look at updating the tailwind classes, changing some of the icons (arrow left might need to become arrow right in some cases for example, and updating the template files)
Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/12491
Reviewed-by: 0ko <0ko@noreply.codeberg.org>
To keep blame info accurate and to avoid [changes like
this](https://github.com/go-gitea/gitea/pull/29977/files#diff-c3422631a14edbe1e508c4b22f0c718db318be08a6e889427802f9b6165d88d6R359),
it's good to always have a trailing comma, so let's enforce it in JS.
This rule is completely automatically fixable with `make lint-js-fix`
and that's what I did here.
(cherry picked from commit 3d751b6ec18e57698ce86b79866031d2c80c2071)
Conflicts:
web_src/js/components/DashboardRepoList.vue
trivial context conflict because of '3b7b899afa fix commit_status'
The [recommended order](https://vuejs.org/guide/scaling-up/sfc.html) for
SFC blocks is script -> template -> style, which we were violating
because template and script were swapped. I do find script first also
easier to read because the imports are on top, letting me immideatly see
a component's dependencies.
This is a pure cut-paste refactor with some removal of some empty lines.
---------
Co-authored-by: Lauris BH <lauris@nix.lv>
Follow:
* #23574
* Remove all ".tooltip[data-content=...]"
Major changes:
* Remove "tooltip" class, use "[data-tooltip-content=...]" instead of
".tooltip[data-content=...]"
* Remove legacy `data-position`, it's dead code since last Fomantic
Tooltip -> Tippy Tooltip refactoring
* Rename reaction attribute from `data-content` to
`data-reaction-content`
* Add comments for some `data-content`: `{{/* used by the form */}}`
* Remove empty "ui" class
* Use "text color" for SVG icons (a few)
## TLDR
* Improve performance: lazy creating the tippy instances.
* Transparently support all "tooltip" elements, no need to call
`initTooltip` again and again.
* Fix a temporary tooltip re-entrance bug, which causes showing temp
content forever.
* Upgrade vue3-calendar-heatmap to 2.0.2 with lazy tippy init
(initHeatmap time decreases from 100ms to 50ms)
## Details
### The performance
Creating a lot of tippy tooltip instances is expensive. This PR doesn't
create all tippy tooltip instances, instead, it only adds "mouseover"
event listener to necessary elements, and then switches to the tippy
tooltip
### The general approach for all tooltips
Before, dynamically generated tooltips need to be called with
`initTooltip`.
After, use MutationObserver to:
* Attach the event listeners to newly created tooltip elements, work for
Vue (easier than before)
* Catch changed attributes and update the tooltip content (better than
before)
It does help a lot, eg:
1a4efa0ee9/web_src/js/components/PullRequestMergeForm.vue (L33-L36)
### Temporary tooltip re-entrance bug
To reproduce, on try.gitea.io, click the "copy clone url" quickly, then
the tooltip will be "Copied!" forever.
After this PR, with the help of `attachTippyTooltip`, the tooltip
content could be reset to the default correctly.
### Other changes
* `data-tooltip-content` is preferred from now on, the old
`data-content` may cause conflicts with other modules.
* `data-placement` was only used for tooltip, so it's renamed to
`data-tooltip-placement`, and removed from `createTippy`.
Previously, a file/directory name was simply cut when it was too long.
Now, we display the browser-native tooltip (`title`) instead, so you can
still see it when hovering over it.
In this case, we don't use the normal `tippy` tooltips for three
reasons:
1. Vue components are not included in the global tooltip initialization
2. Vue components would need to initialize their tooltips themselves
whenever their content is changed
3. The tooltips are shown too long under the default configuration (the
tooltip one element above is still shown when hovering on the element
below)
Fixes#22915
## Appearance
## Room for future improvement
We could think about displaying the whole file path in the title, not
just its name.
This is not done at the moment:
---------
Co-authored-by: techknowlogick <techknowlogick@gitea.io>
As discussed in #22847 the helpers in helpers.less need to have a
separate prefix as they are causing conflicts with fomantic styles
This will allow us to have the `.gt-hidden { display:none !important; }`
style that is needed to for the reverted PR.
Of note in doing this I have noticed that there was already a conflict
with at least one chroma style which this PR now avoids.
I've also added in the `gt-hidden` style that matches the tailwind one
and switched the code that needed it to use that.
Signed-off-by: Andrew Thornton <art27@cantab.net>
---------
Signed-off-by: Andrew Thornton <art27@cantab.net>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
Collapsing folders currently just throws a console error
```
index.js?v=1.19.0~dev-403-gb6b8feb3d:10 TypeError: this.$set is not a function
at Proxy.handleClick (index.js?v=1.19.0~dev-403-gb6b8feb3d:58:7159)
at index.js?v=1.19.0~dev-403-gb6b8feb3d:58:6466
at index.js?v=1.19.0~dev-403-gb6b8feb3d:10:93922
at ce (index.js?v=1.19.0~dev-403-gb6b8feb3d:10:1472)
at Q (index.js?v=1.19.0~dev-403-gb6b8feb3d:10:1567)
at HTMLDivElement.$e (index.js?v=1.19.0~dev-403-gb6b8feb3d:10:79198)
```
This PR fixes this and allows folders to be collapsed again.
Also:
- better cursor interaction with folders
- added some color to the diff detail stats
- remove green link color from all the file names
Screenshots:
---------
Co-authored-by: zeripath <art27@cantab.net>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
- Replace all default exports with named exports, except for Vue SFCs
- Remove names from Vue SFCs, they are automatically inferred from the
filename
- Misc whitespace-related tweaks
This PR adds a filetree to the left side of the files/diff view.
Initially the filetree will not be shown and may be shown via a new
"Show file tree" button.
Showing and hiding is using the same icon as github. Folders are
collapsible. On small devices (max-width 991 PX) the file tree will be
hidden.
Close#18192
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
