Switching repos reassigns gui.git and the process cwd; doing it while a
foreground git operation (rebase/commit/push/…) is mid-flight would run
that operation's remaining commands against the wrong repo. The same
applies while the refresh an operation triggers is still settling: its
model writes are generation-guarded, but the client-side Then/OnUIThread
callbacks that run after it aren't, and shouldn't run against a repo that
changed underneath them.
Refuse the switch (with a toast) whenever gocui reports a busy foreground
task. DispatchSwitchTo carries the guard for the simple callers. The
callers that do work before the switch check up front instead, so a
refused switch doesn't leave that work half-done: worktree creation
checks before creating (its own waiting-status spinner would otherwise
make the query busy and refuse its own switch); submodule-enter and the
recent-repos menu check before mutating the repo-path stack (pushing /
clearing it); and escape-to-parent (SwitchToParentRepo) checks before
popping it, so a refusal doesn't consume the entry and strand the user
with nowhere to escape back to. All then call the unguarded switchTo,
which is safe because their own operation is complete by then.
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.
Apparently this was an attempt at working around go's lack of default arguments,
but it's very unidiomatic and a bit confusing. Make it a normal parameter
instead, so all clients have to pass it explicitly.
This might seem controversial; in many cases the client code gets longer,
because it needs an extra line for an explicit `return nil`. I still prefer
this, because it makes it clearer which calls can return errors.
The comments that I'm deleting here explain why we need the bool; however, in
our case that's a theoretical issue. It would only arise if we ever were to pass
a nil context to SetParentContext, which we never do.
This is the highest priority of the escape actions because it's the thing you're
most likely to want to do upon hitting escape if you have a range selected.
Applying this to the staging/patch-building views is tricky: if we want this logic
for when a range of lines is selected, we'll also need to apply it when a hunk
is selected too. I still think it's worth it though: I've often accidentally
escaped from the staging view when trying to cancel a range selection.
We now always re-use the state of the repo if we're returning to it, and we always reset the windows to their default tabs.
We reset to default tabs because it's easy to implement. If people want to:
* have tab states be retained when switching
* have tab states specific to the current repo retained when switching back
Then we'll need to revisit this
