When rerendering a view at the end of a refresh, we call HandleFocus only if the
view has the focus. This is so that we rerender the main view for the new
selection.
What was missing here is to update the view selection from the list selection if
the view doesn't have the focus, so that the selection is painted properly.
Normally this is not relevant because you don't see the selection if another
side panel has the focus; however, you do see it as an inactive selection when
e.g. a popup is shown, in which case it does matter.
This will become more important when we introduce section headers for commits,
because in that case the view selection needs to change when the working copy
state changes from normal to rebasing or vice versa, even if the list selection
stays the same.
The changed test submodule/reset.go shows how this was wrong before: when
entering the submodule again after resetting, there is a refresh which keeps the
same branch selected as before (master); however, since the branches panel is
not focused, the view didn't notice and kept thinking that the detached head is
selected (which it isn't, you can tell by running the test in sandbox mode and
focusing the branches panel at the end: you'll see that master is selected). So
the change in this commit fixes that.
We do this because
- it's closer to what you would do on the command line
- it simplifies the code a bit
- it will allow us to support cherry-picking merge commits.
Previously we would create new Commit objects to store in the CherryPicking mode
which only contained a name and hash, all other fields were unset. I'm not sure
why we did this; it's easier to just reference the original commits. Later on
this branch we will need this because we need to determine whether a copied
commit was a merge commit (by looking at its Parents field).
We treat the .git/sequencer/todo file as read-only. Technically it seems it
would be possible to treat it as modifiable in the same way as
.git/rebase-merge/git-rebase-todo, effectively turning a cherry-pick or revert
that stops at a conflict into an interactive rebase; however, git itself doesn't
allow this (there is no "git cherry-pick --edit-todo"), so it seems safer not to
rely on it.
Theoretically it would be possible to allow modifying the rebase todos when a
cherry-pick or revert conflicts in the middle of a rebase. However, it would
introduce a bit of complexity to support this, as we would have to be able to
distinguish between rebasing todos and cherry-picking/reverting todos, which we
currently can't; it could also be a bit error-prone as far as edge cases are
concerned. And it's really a pretty uncommon situation, so it doesn't seem worth
it, and we just forbid all modifications to todos whenever we are cherry-picking
or reverting.
What happens here is that when stopping on an "edit" todo entry, we rely on the
assumption that if the .git/rebase-merge/amend file exists, the command was
successful, and if it doesn't, there was a conflict. The problem is that when
you stop on an edit command, and then run a multi-commit cherry-pick or rebase,
this will delete the amend file. You may or may not consider this a bug in git;
to work around it, we also check the existence of the rebase-merge/message file,
which will be deleted as well by the cherry-pick or revert.
This problem can't happen inside of lazygit itself right now, but this will
change in the future. It will only happen when you stopped in an interactive
rebase on an "edit" entry, and then you perform a revert or cherry-pick
consisting of more than one commit; in this situation lazygit will show a
conflict although there is none.
This is not possible with lazygit yet, as we don't support range-select for
reverting, and we don't use `git cherry-pick` for cherry-picking. Both will
change in the future, so it's good to fix this bug.
MergeRebasingCommits already merges the rebasing commits into the commits slice
that is passed in, so it doesn't make sense to append the result to commits
again. It isn't a problem, but only because commits is always empty.
It is useful to see if the conflicted commit was a "pick" or an "edit". What's
more, we're about to add support for showing cherry-picks and reverts, and
seeing that a conflicted commit was a revert is important because its diff is
backwards compared to the diff of the conflicting files in the Files panel.
This is equivalent in the current state of the code, but it will no longer be
after the next commit, because we will introduce a new status value
StatusConflicted. And in a later PR we might add yet another value
StatusCherryPicking to distinguish rebase todos from cherry-pick todos; using
commit.IsTODO is a safer way to check whether a commit is any of these.
When you are in the middle of a rebase, and you cherry-pick a commit which
conflicts, it helps to be clear on whether you are prompted to continue the
cherry-pick or the rebase.
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.
The situation is that you perform a rebase, and one of the commits becomes empty
during the rebase, in a way that couldn't be predicted before the rebase
started. To explain: git rebase has some logic where it immediately discards
commits if it can tell that they already exist in the branch being rebased onto;
it does this by looking at the patch ids of the commits to work out which
commits already exist upstream. But for those commits that become empty even
though there isn't a corresponding commit upstream, git stops with an error, and
lazygit detects this (in CheckMergeOrRebaseWithRefreshOptions) and automatically
continues the rebase.
This all works fine; I'm adding this test because I almost broke this during
development of this branch, so I'm adding it to guard against regressions.
- Remove REBASE_MODE_NORMAL. It is not the "normal" mode anyway, rather a legacy
mode; we have removed support for it in eb0f7e3d02, so there's no point in
representing it in the enum.
- Remove distinction between REBASE_MODE_REBASING and REBASE_MODE_INTERACTIVE;
these are the same now.
- Rename StatusCommands.IsInInteractiveRebase to IsInRebase.
- Remove StatusCommands.RebaseMode; use StatusCommands.IsInRebase instead.
All test cases set it to enums.REBASE_MODE_NONE, so we can simplify things a
little bit by hard-coding that. This makes the changes in the following commits
a little easier.
When debugging an integration test that involves some behind-the-scenes
rebasing, the daemon lazygit would also wait for a debugger to attach. This is
very confusing because the test seems to hang; once you figured out what's going
on, it's inconvenient because you need to attach a debugger to the daemon every
time you debug the test.
Now, it would sometimes be useful to be able to debug the daemon itself (whether
inside an integration test, or during normal usage), and I have often wished to
be able to do that. We might introduce an additional env var (and command-line
option?) to enable this; but that's out of scope here.
For #, !, [, and ], the problem is that it doesn't ignore the file because the
special characters need to be quoted. For *, the problem is that it ignores too
much (it also hides the abc_def file because the * is treated as a glob).
It is shown either when committing with `w`, or when typing the skipHooks prefix
if there is one. This should hopefully make it clearer when the hooks are run
and when they are not.
We removed prefilling the skipHook prefix in b102646b20 with the intention of
making it clearer that using the prefix in normal commits and typing `w` to skip
hooks are now two independent features.
It turns out that some people liked it with prefilling the prefix and perceive
it as a regression, so put it back in.
But only if we don't have a preserved message; this is an important use case,
when you try to make a normal commit, the hook fails, and then you want to make
the same commit with skipping the hook, but with the same message that you
already typed.
This makes it possible to use date and time in initial values like this:
```yaml
initialValue: 'ruudk/{{ runCommand "date +\"%Y/%-m\"" }}/'
```
I want to use this to configure my BranchPrefix like this:
```yaml
git:
branchPrefix: 'ruudk/{{ runCommand "date +\"%Y/%-m\"" }}/'
```
For the less common conflict types DD, AU, UA, DU, and UD, we would previously
only show "* Unmerged path" in the main view, which isn't helpful. Also, for
some of these we would split the main view and show this text both in the
unstaged changes and staged changes views, which is a bit embarrassing.
Improve this by offering more explanation about what's going on, and what the
most likely way to resolve the situation is for each case.
We keep the same commit selected (even though its index changed because of the
added update-ref todo), which is nice; however, the main view shows the diff of
the wrong commit, which is very confusing. I'm suprised that this hasn't been
noticed yet.
The reason why this happens is that we first do the refresh, which includes
re-rendering the main view diff (with the same commit index as before, so the
wrong one), and then we restore the correct commit index but don't render the
main view again.
I can only guess here: maybe they were added to more clearly document the public
interface of the classes? If so, I don't think that works. Developers who are
not familiar with the convention will just add a new public method to the class
without updating the interface.
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.
There is a section at the end with deprecated settings, and a comment saying
"The following configs are all deprecated". The clipboard-related settings were
accidentally added to that section; they are not deprecated, so move them up to
before that section.
The current rules for discarding submodule changes is that no other changed item
must be also selected. There are some bugs with the current implementation when
submodules are in folders.
For example, selecting and discarding a folder with only a nested submodule
change will currently do nothing. The submodule changes should be discarded. The
folder only contains submodule changes so it should be no different than
pressing discard on the submodule entry itself.
Also, I noticed range selecting both the folder and the submodule and then
pressing discard would be incorrectly disallowed.
Renaming a file inside the same directory shows it with its full path in the
tree view, which isn't what we want. We'll fix this in the next commit.
Also adding a few other test cases for moving files; they show that the display
of moved files in tree view isn't ideal. For example, moving file1 from top
level into dir shows it as "R file1 → file1", which isn't distinguishable from
renaming file1 inside dir. I suppose what we would like to have here is
"R ../file1 → file1" or something, but I'll leave that for the future; here I
only want to fix the regression that was introduced with the root item PR.
In 8b8343b8a9 we made a change to run newPtyTask from AfterLayout; this is
needed so that the PTY gets the new, updated view size. However, this created a
race condition for integration tests that select a line in a list view and then
expect the main view to have certain content; sometimes that content gets
rendered too late.
I'm surprised that this didn't cause more tests to fail; right now I only know
of one test that occasionally fails because of this, which is stash/rename.go.
Fix this by moving the AfterLayout to inside newPtyTask, and do it only when we
are actually using a PTY (we don't when no pager is configured, which is the
case for integration tests).
The diff is best viewed with "ignore whitespace" turned on.
The test shows a misbehavior: even though the diff shows "-one" and "+three",
meaning that "three" is the state we want to check out, we get "one". The reason
is that the checkout file command doesn't pay attention to range selections, it
only looks at the "moving end" of the range. Had we created the range by
selecting "two" and then pressed shift-up to "three", we would have gotten the
expected result.
The actual usage is case insensitive, so this doesn't actually matter.
But if fills my heart with joy.
The test is case sensitive, but the actual response to `git config
commit.gpgSign` is equivalent to `git config commit.gppsign`
It's not an ideal solution because there's no indication of what kind of objects
you can add to those maps or arrays, but at least they show up at all (with a
comment containing a link to more information), and that's already an
improvement.
Add verify flag
Add and update integration tests
Rename verify to forceSkipHooks
Adapt CommitSkipHooks integration test to actually use a hook
Remove forceSkipHooks param from OnConfirm et al
Simplify tests
Assert the entire lines using Equals instead of Contains. This makes the tests a
bit easier to read, and it makes it much easier to decide how they need to be
changed when we change the layout (like we do in the last commit of this
branch).
It is true that this requires changing all these tests for any future UI
changes, but I think this is a good price to pay; those adaptions are trivial
and can be done without thinking.
I'm pretty sure that the check for the main view was meant to be done with the
commit selected in the commits panel, not with the first file of the commit
files view selected, so it was pressing enter too early. It's pure coincidence
that the test worked.
This is useful for copying the entire content of the selected file as it was at
the selected commit.
We only add it to the commit files panel; it is not needed in the files panel,
because there you can simply press "e" to edit the file.
This allows changing git config values while lazygit is running (e.g. in a
different terminal tab, or even in lazygit's ":" shell prompt), and have them
take effect immediately, while still getting some benefit from caching them
while lazygit is in the foreground.
Before we changed the commitPrefix config to a list in #4261, we had this bug
where the defaults section in Config.md would erroneously list the default for
commitPrefix as
git:
commitPrefix:
pattern: ""
replace: ""
This was not correct, commitPrefix was a pointer, and the default for that was
nil, which is not the same.
Now, some people copied and pasted the entire defaults section into their config
files, setting the commitPrefix to an empty pattern (which is not the same as
not setting it at all). And this caused the branch name to be filled in to the
subject field for every commit; see for example
https://github.com/jesseduffield/lazygit/discussions/3632.
New users copying the defaults section into their config file in the current
version no longer have this problem because now that commitPrefix is a list, it
is no longer included in the defaults section. However, the migration that we
added in #4261 would happily carry over those empty strings into a list entry,
so people migrating from an older version still have the broken config in their
config files.
To work around the issue, ignore commit prefix settings whose pattern is an
empty string. I can't imagine a valid reason why people would actually want to
set the pattern to an empty string, so I assume this only comes from the broken
defaults problem described above.
Some operating systems 'open' implementations do not like
when some special characters are unencoded, so they will
double-enconde the branch name, which we already encode.
This particularly matters since branch names with / are common
Rewording a commit at the beginning of a long branch can take very long;
without this change, the commit message panel would stay visible with a blinking
cursor during that time, which is very confusing.
This has the slight downside that it will say "Rebasing" in the lower right
corner until the operation is done; but we already have this problem when doing
custom patch operations, or dropping changes from a commit, so it's not new, and
we can think about how to fix all these another time.
WithGpgHandling already does an async refresh when done, so there's no need to
do one here for the case of amending the head commit. On top of that,
WithGpgHandling uses WithWaitingStatus and works in the background, so the
Refresh here would come too early anyway.
All this does is clear the preserved commit message; however, we open the commit
message panel with PreserveMessage: false when rewording, so this is not
necessary.
For some reason the //nolint:golint,unused comment no longer seems to work after
I updated gopls (I think).
But I also don't understand why we mark unused stuff with linter comments
instead of just getting rid of it.
Previously we only filtered them out from the example config section in
Config.md, but they still appeared in the schema. This is not ideal, because the
schema descriptions can appear in editors on mouse hover or in auto-completions.
So filter them out earlier, so that they don't appear in the schema either.
Some people have post-checkout hooks that take a lot of time, which makes
discarding changes slow. You can argue that a post-checkout hook should only run
when you switch branches, so it doesnt't have to run when checking out single
files or directories. You can also argue that lazygit might have implemented
discarding changes by taking the current patch and applying it in reverse, which
wouldn't have run a post-checkout hook either.
So disable them for all cases where we use git checkout with a path; this
includes checking out a file from the commit files view.
This seems to be what most people use when indenting yaml files, and it seems to
make more sense than the default of 4.
We also use it the example config in Config.md.
In ff4ae4a544 we changed the order of the calls to render before selecting the
branch. This was done only to save an extra call to ReApplyFilter, which is done
by refreshView; I claimed that the order of refreshView vs. SetSelectedLineIdx
doesn't matter here. I guess I was wrong about that, it makes the integration
test custom_commands/suggestions_preset.go flaky. To fix this, put the
refreshView call back to where it was (after the SetSelectedLineIdx call), and
instead insert an extra call to ReApplyFilter where necessary to fix the bug
that ff4ae4a544 was trying to fix.
This is very similar to the same menu in the Files panel, except that it works
on whatever diff is currently shown in the main view, including range diffs
either in diffing mode (shift-W), or from a range selection of commits.
Change our fake clipboard command to not append a linefeed; that's closer to
what the production code does.
This allows us to use Equals instead of Contains for checking the clipboard
contents.
Finally, use FileSystem().FileContent() to assert the clipboard contents,
instead of selecting the clipboard file and then checking the diff view.
This may lead to unrelated processes being killed on Windows (https://github.com/jesseduffield/lazygit/issues/3008). Imagine:
1. lazygit is started and runs git diff in process X which completes immediately and exits.
2. lazygit is left in the background for several hours by which process X pid is reused by an unrelated process.
3. lazygit is focused back on and runs another git diff. It first runs this stop logic which will kill process X and its children.
Previously the schema only allowed a single value; however, it is now possible
to specify multiple values separated by comma, and you would get very ugly red
error squiggles in VS Code when you did that.
The only solution that I can see is to get rid of the "enum" specification, and
mention the valid values only in the description. Add examples too so that you
get at least auto-completion.
When pasting a multi-line commit message into the subject field of the commit
editor, we would interpret the first newline as the confirmation for closing the
editor, and then all remaining characters as whatever command they are bound to,
resulting in executing all sorts of arbitrary commands.
Now we recognize this being a paste, and interpret the first newline as moving
to the description.
Also, prevent tabs in the pasted content from switching to the respective other
panel; simply insert four spaces instead, which should be good enough for the
leading indentation in pasted code snippets, for example.
Jesse's comment from https://github.com/jesseduffield/lazygit/issues/4237:
We recently added a new option to check out a commit's branch from within the
commits, reflog, and sub-commits panels:
https://github.com/user-attachments/assets/0a5cf3f2-6803-4709-ae5a-e4addc061012
After using it for some time, I find it annoying that the default option has
changed. I rarely find myself wanting to check out a branch from the commits
panel, and it's rarer still to want to check out a branch from the reflog and
sub-commits panel. Although there may be use cases for this, it is jarring that
something you can always do (checkout the commit) is harder to do than something
that you can sometimes do (checkout the branch).
We've also had a user complain (see
https://github.com/jesseduffield/lazygit/pull/4117) about their muscle-memory
being broken by the recent change, and I have also fallen victim to this. I
don't think that the new branch checkout option is sufficiently useful to
dislodge the existing keybinding, so let's swap them.
The code that tries to reselect the same branch again uses GetItems, which in
case of filtering is the filtered list. After replacing the branches slice with
a new one, the filtered list is no longer up to date, so we must reapply the
filter before working with it. It so happens that refreshView does that, so
simply call that before setting the selection again; I don't think the order
matters in this case. Otherwise we'd have to insert another call to
ReApplyFilter before the call to GetItems, which we can avoid this way.
Note that this doesn't actually make anything work better in the case of
deleting a branch, since we can't reselect the deleted branch anyway of course.
But it avoids a possible crash if the branch that was deleted was the last one
in the unfiltered list.
This includes the "only conflicting" status that the user can't switch to
themselves. We display it anyway to give a hint that files are being filtered,
and to let them know that they can turn the filter off if they want to.
I renamed the "Reset filter" item to "No filter" to make it look more like a
state than an action, so that it fits the radio button concept better.
When there are conflicts and we set the filter to show only conflicting files,
then none of the radio buttons light up, which is slightly strange. I guess it's
ok though.
We don't need to maintain additional state to allow this; all we need to do is
take over the filter only when the number of conflicting files goes from zero to
non-zero, rather than every time it is non-zero.
The only problem is that we don't allow users to go back to showing only
conflicted files, but that's just because we don't have that as an entry in the
menu. And I don't think it's a problem.
This handles the situation where the user's own config says to not show
untracked files, as is often the case with bare repos managing a user's
dotfiles.
Git diff and patch doesn't work reliably with a context size of 0, so disable it
in this case (and discarding changes as well). Magit does the same, see
https://github.com/magit/magit/issues/4222.
Staging entire files by pressing space in the Files panel is still possible, of
course.
This was recently introduced, but it was done the wrong way.
WithWaitingStatusSync should only be called from the main thread, and it is
meant to be used for updating the bottom line while the UI is blocked. It is a
bad idea to call this from a background thread, and it results in ugly flicker
(occasionally).
Use the newly extracted WithWaitingStatusImpl instead, this is the same as
WithWaitingStatus (which is exactly what we need) but without the implicit
OnWorker, which we don't want because we are on a background thread already.
This shows a status as if the user had typed 'f' manually in the files panel.
I want this particularly for the first fetch after startup. There are often
situations where I need to wait for this first background fetch to be done
before I can do what I want (e.g. rebase my branch onto its base branch, or
check out a branch that my coworker has told me they just pushed), but currently
it's hard to tell when that is.
For every subsequent background fetch after the first one it is less important,
but it hopefully doesn't hurt, and it might be nice to have some visual
indication that background activity is happening.
As far as I can tell, this is not needed. The call to Refresh at the end of
backgroundFetch takes care of redrawing after refreshing.
The call was added in 2fc1498517, that's a long time ago, and we had multiple
big refactorings since then. Maybe it was needed back then but no longer is
today.
It has fields .To and .From (the hashes of the last and the first selected
commits, respectively), and it is useful for creating git commands that act on a
range of commits.
When pushing a branch that didn't have an upstream yet, we use the command line
git push --set-upstream origin HEAD:branch-name
The HEAD: part of this is too unspecific; when checking out a different branch
while the push is still running, then git will set the upstream branch on the
newly checked out branch, not the branch that was being pushed. This might be
considered a bug in git; you might expect that it resolves HEAD at the beginning
of the operation, and uses the result at the end.
But we can easily work around this by explicitly supplying the real branch name
instead of HEAD.
For editable views it is important to actually show the blank line so that we
can put the cursor there for typing.
This fixes problems with adding blank lines at the end of longer commit
messages.
We used to automatically color branches starting with "feature/", "bugfix/", or
"hotfix/". For those who don't want this, it's a bit non-obvious to turn off,
but it's actually pretty easy to configure manually for those who want this, so
we just remove this default coloring.
We use an interactive shell so that users can use their custom shell aliases in
lazygit's shell prompt, which is convenient; however, this only really works for
shells like bash or zsh. We know it doesn't work for fish or nushell (because
these use different names for the $? variable); so use an interactive shell only
if the user's shell is either bash or zsh.
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.
When pressing `e` on line 5 in a diff of an older commit, we expect it to take
us to line 5 in that file. But we end up on line 2, because the file had further
changes both in newer commits, and in the unstaged changes of the working copy.
This updates gocui to include https://github.com/jesseduffield/gocui/pull/68 and
https://github.com/jesseduffield/gocui/pull/69, which changes views to not have
an extra blank line at the end when content ending in a newline character is
written to them. This makes text views more consistent with list views, which
don't have a blank line after the last list entry either.
The easiest way to do that is to rename the local branch after pushing.
This shows various levels of brokenness for the reset and rebase to upstream
commands: both menu entries display the wrong upstream branch name in the menu
(the local one rather than the remote one); executing the rebase command works
correctly though, the rebase command uses the right branch name. Resetting
fails, though.
We'll fix this in the next commit.
This makes it possible to "silently" disable a keybinding. The effect is the
same as putting the check in the handler and returning nil from there, except
that doing it this way also hides it from the bottom line if DisplayOnScreen is
true.
It should have been half-screen from the get-go. I think I just used
full-screen to make demos look nicer. Now that we have a CLI arg for the
screen mode we can make use of that in the demos.
Introduce a new "screen-mode" command line argument that allows a user
to specify which screen mode (normal, half or full) Lazygit should use
when it runs.
This argument will take precedence over a default Window Size specified
in user config.
When the user checks out a commit which has a local branch ref attached
to it, they can select between checking out the branch or checking out
the commit as detached head.
In 5a3049485c we changed the execution of shell commands to use an interactive
shell (-i), because this allows users to use aliases or shell functions, which
is a nice convenience.
Since then, however, many users have reported problems with lazygit not coming
back to the foreground after executing a shell command. Some users report that
appending "; exit" to the end of the command line solves this. I don't really
understand what the cause of this problem was, or why appending "; exit" solves
it, but if it helps, let's do it.
Sometimes we populate the commit message panel with a pre-created commit
message. The two cases where this happens is:
- you type `w` to commit, in which case we put the skipHookPrefix in the subject
- you have a commitPrefix pattern, in which case we match it against the branch
name and populate the subject with the replacement string if it matches
In either case, if you have a preserved commit message, we use that.
Now, when you use either of these and then cancel, we preserve that initial,
unchanged message and reuse it the next time you commit. This has two problems:
it strips spaces, which is a problem for the commitPrefix patterns, which often
end with a space. And also, when you change your config to experiment with
commitPrefix patterns, the change seemingly doesn't take effect, which can be
very confusing.
To fix both of these problems, only preserve the commit message when it is not
identical to the initial message.
This makes it so that when the staging view is resized, we keep the same patch
line selected (as opposed to the same view line, which may correspond to a
different patch line after resizing). It doesn't seem like a terribly important
feature for resizing the window, but it is essential when initially entering the
staging view: we select the first line of the first hunk in this case, but we do
that before layout runs. At layout time the view is then split into
unstaged/staged changes, and if this split is horizontal, the view gets narrower
and may be wrapped in a different way. With this commit we ensure that the first
line of the first hunk is still selected after that.
So far, lines in the view corresponded 1:1 to lines in the patch. Once we turn
on wrapping for the staging view (which we don't do yet), this is no longer
true, so we need to convert from view lines to patch lines or vice versa all
over the place.
This doesn't improve the code much in the current state, but we'll add some more
code to this helper function in the next commit, which makes it worth it.
We haven't needed this before since we were only using the function for text in
confirmations and menus, which is unlikely to contain tabs. We are going to use
it for patches in the staging view though, which often do.
to make it more generally usable by clients other than ConfirmationHelper, which
we will do later in this branch. Rename it to WrapViewLinesToWidth while we're
at it.
Add tests; in particular, add a sanity check that we wrap lines the same way as
gocui does. The tests that are added here are the same ones as in gocui for its
lineWrap function, but we'll extend them a bit in later commits in this branch.
This is also what we do in the staging controller, and it makes it so that when
you exit the patch building view and then enter it again (for another file, or
the same one) we select the first hunk again.
The test demonstrates that the behavior is undesirable right now: we move the
commit only past the update-ref todo of branch1, which means the order of
commits stays the same and only the branch head icon moves up by one. However,
we move the selection down by one, so the wrong commit is selected now. This is
especially bad if you type a bunch of ctrl-j quickly in a row, because now you
are moving the wrong commit.
There are two possible ways to fix this:
1) keep the moving behavior the same, but don't change the selection
2) change the behavior so that we move the commit not only past the update-ref,
but also past the next real commit.
You could argue that 1) is the more desirable fix, as it gives you more control
over where exactly the moved commit goes; however, it is much trickier to
implement, so we go with 2) for now (and that's what the commented-out
"EXPECTED" section documents here). If users need more fine-grained control,
they can always enter an interactive rebase first.
For non-merge commits we change "pick" to "drop" when we delete them. We do this
so that we can use the same code for dropping a commit no matter whether we are
in an interactive rebase or not. (If we aren't, we could just as well delete the
pick line from the todo list instead of setting it to "drop", but if we are, it
is better to keep the line around so that the user can change it back to "pick"
if they change their mind.)
However, merge commits can't be changed to "drop", so we have to delete them
from the todo file. We add a new daemon instruction that does this.
We still don't allow deleting a merge commit from within an interactive rebase.
The reason is that we don't show the "label" and "reset" todos in lazygit, so
deleting a merge commit would leave the commits from the branch that is being
merged in the list as "pick" commits, with no indication that they are going to
be dropped because they are on a different branch, and the merge commit that
would have brought them in is gone. This could be very confusing.
One of the comments we are deleting here said:
// Comparing just the hash is not enough; we need to compare both the
// action and the hash, as the hash could appear multiple times (e.g. in a
// pick and later in a merge).
I don't remember what I was thinking when I wrote this code, but it's nonsense
of course. Maybe I was thinking that the hash that appears in a "merge" todo
would be the hash of the commit that is being merged in (which would then
actually appear in an earlier pick), but it isn't, it's the hash of the merge
commit itself (so that the rebase can reuse its commit message). Which means
that hashes are unique, no need to compare the action.
So far it didn't have to handle the case where one hash is empty and the other
isn't, but in the next commit we need that, so let's handle that case correctly.
There's enough logic in the function now that it's worth covering it with tests.
