Whether a graph can be drawn was read from the filtering mode, while the
graph itself is drawn over the commit list in the model. Those two only
agree once the list has been reloaded for the new mode, and a filtering
mode change reloads the list in the background, so in between we can be
asked to draw a graph over a list the graph makes no sense for.
That is not just cosmetic. Commits in a filtered list are almost never
each other's parents, so no pipe ever terminates: the pipe set grows by
one per row and every continuing pipe rescans it, which is cubic in the
length of the list. Escaping out of filtering mode with a filtered list
of 13000 commits — as you get once the 300 commit limit has been lifted,
which happens for good as soon as the selection passes COMMIT_THRESHOLD
— wedges the UI thread for around twenty minutes.
Record whether the list was loaded with a filter, right where the list
itself is stored, and decide from that. The graph now also stays up while
the pre-change list is still on display, rather than vanishing a moment
before the list it belongs to.
Moving commits runs a rebase, which can take a while. Instead of
letting the drop indicator vanish the moment the button is released,
keep it in place and turn it into a "moving commits here" spinner once
the move takes longer than a short grace period, so that quick moves
stay free of flicker. The indicator is cleared when the post-move
refresh lands.
Render the insertion point of a commit drag as a non-model item in the
commits list. It must be inserted at the right position relative to
the section headers, because the list renderer assumes non-model items
are ordered by their model index.
Not used yet, we'll hook it up to the drag gesture in the next commit.
The model<->view index conversions were derived from arrays that only
renderLines populated. That made them depend on the list having been
rendered (so a conversion before the first render ignored the non-model
items), and it made them go stale whenever the model changed after a
render: converting an index then returned a wrong result, and once the
model had grown past the last rendered length the conversion indexed a
too-short array and panicked (seen in cherry_pick under -race).
The conversion is a pure function of the current list length and the
current non-model items, and needs none of the rendered display strings.
Compute it directly and drop the cached arrays, so the result is always
consistent with the current model and no longer depends on rendering.
searchModelCommits converts every commit's index, and building the
non-model items can be O(len) mid-rebase, so it would now be quadratic;
snapshot the non-model items once via modelToViewIndexConverter instead
of rebuilding them per index.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
CheckoutRef and ResetToRef set this flag from their worker goroutine
(to load fewer commits for speed) while the commits refresh reads it on
the UI thread in captureCommitsState to decide how many to load — a data
race. Make it an atomic.Bool so those writes are safe where they are,
rather than routing the flag through a refresh intent. Precedent:
Branch.BehindBaseBranch.
I copied all files except dot files (.github and .gitignore), the _examples
folder, and go.mod/go.sum.
At some point we may want to copy the files back to the gocui repo when other
clients (e.g. lazydocker) want to use the newer versions of them.
When switching to a different repo, and then back to the original one, searching
would no longer work. The reason is that our contexts set callbacks on their
views; when switching to a different repo we instantiate a new set of contexts,
so they will overwrite the views' callbacks with their new ones, but when
switching back to the original repo, we reuse the old contexts because they are
still in memory, but they won't set their callbacks again since they only do
this on construction.
To fix this, replace the view-local callbacks with a global one on the gui that
takes the view as an argument, so that the callback can look up the associated
context dynamically.
We forgot to convert the model indices to view indices in searchModelCommits.
This needs to be done for search results to be highlighted correctly in the
"divergence from upstream" view, which adds "--- Remote/Local ---" entries, and
during a rebase, where we have "--- Pending rebase todos ---" and "--- Commits
---" which offset view indices from model indices.
It looks like enums.go was supposed to be file that collects a bunch of enums,
but actually there's only one in there, and since it has methods, it deserves to
be in a file of its own, named after the type.
There are two ways to jump to the editor on a specific line: pressing `e` in the
staging or patch building panels, or clicking on a hyperlink in a delta diff. In
both cases, this works perfectly in the unstaged changes view, but in other
views (either staged changes, or an older commit) it can often jump to the wrong
line; this happens when there are further changes to the file being viewed in
later commits or in unstaged changes.
This commit fixes this so that you end up on the right line in these cases.
In other views that show lists of commits (reflog and stash) it doesn't make
sense to show a range diff of selected entries because they don't form a linear
sequence, so we keep the previous behavior of showing the diff for the free end
of the selection range in those view.
The same applies to the commits view if the selection range includes rebasing
todos; these can have an arbitrary order, and a range diff doesn't make sense
for those.
We fixed one specific scenario where this happened ealier in this branch, but in
case there are more that we don't know about yet, at least make sure we don't
crash.
In d5b4f7bb3e and 58a83b0862 we introduced a combined mechanism for rerendering
views when either their width changes (needed for the branches view which
truncates long branch names), or the screen mode (needed for those views that
display more information in half or full screen mode, e.g. the commits view).
This was a bad idea, because it unnecessarily rerenders too many views when just
their width changes, which causes a noticable lag. This is a problem, for
example, when selecting a file in the files panel that has only unstaged
changes, and then going to one that has both staged and unstaged changes; this
splits the main view, causing the side panels to become a bit narrower, and
rerendering all those views took almost 500ms on my machine. Another similar
example is entering or leaving staging mode.
Fix this by being more specific about which views need rerendering under what
conditions; this improves the time it takes to rerender in the above scenarios
from 450-500s down to about 20ms.
This reintroduces the code that was removed in 58a83b0862, but in a slightly
different way.
We want to add an additional method to ISearchableContext later in this branch,
and this will make sure that we don't forget to implement it in any concrete
context.
ListContextTrait.OnSearchSelect was introduced in 138be04e65, but it was never
called. I can only guess that a planned refactoring wasn't finished here.
When exiting filtering mode, we currently keep the selection index the same in
the commits panel. This doesn't make sense at all, since the index in the
filtered view has no relation to the index in the unfiltered view.
I often use filtering mode (either by path or by author) to find a given commit
faster than I would otherwise be able to. When exiting filtering mode, it's
useful to keep the same commit selected, so that I can look at the surrounding
commits, see which branch it was a part of, etc. So reselect the commit again
after exiting filtering mode.
Sometimes this is not possible, most likely when the commit is so long ago that
it's outside of the initial 300 range. In that case, at least select the commit
again that was selected before I entered filtering; this is still better than
arbitrarily keeping the same selection index.
Something dumb that we're currently doing is expecting list items
to define an ID method which returns a string. We use that when copying
items to clipboard with ctrl+o and when getting a ref name for diffing.
This commit gets us a little deeper into that hole by explicitly requiring
list items to implement that method so that we can easily use the new
helper functions in list_controller_trait.go.
In future we need to just remove the whole ID thing entirely but I'm too
lazy to do that right now.
The only time we should call SetSelectedLineIdx is when we are happy for a
select range to be retained which means things like moving the selected line
index to top top/bottom or up/down a page as the user navigates.
But in every other case we should now call SetSelection because that will
set the selected index and cancel the range which is almost always what we
want.
Situations where a view's width changes:
- changing screen modes
- enter staging or patch building
- resizing the terminal window
For the first of these we currently have special code to force a rerender, since
some views render different content depending on whether they are in full-screen
mode. We'll be able to remove that code now, since this new generic mechanism
takes care of that too.
But we will need this more general mechanism for cases where views truncate
their content to the view width; we'll add one example for that later in this
branch.
This allows to do the equivalent of "git rebase --onto <target> <base>", by
first marking the <base> commit with the new command, and then selecting the
target branch and invoking the usual rebase command there.
We want to mark all local branch heads with a "*" in the local commits panel, to
make it easier to see how branches are stacked onto each other. In order to not
confuse users with "*" markers that they don't understand, do this only for the
case where users actually use stacked branches; those users are likely not going
to be confused by the display. This means we want to filter out a few branch
heads that shouldn't get the marker: the current branch, any main branch, and
any old branch that has been merged to master already.
Go really doesn't like us doing anything inheritance-y: it does not support open recursion meaning
it's really hard to re-use code. As such, here we're falling back to conditional logic.
This fixes an issue where our ListContextTrait was calling FocusLine which was intended to be
overridden by ViewportListContextTrait, but the subclassed function wasn't being called. I'm
not actually sure how this went wrong given that it was working fine in the past, but at any rate,
the new code is easy to follow.
