There are two possible fixes for this bug, and they differ in behavior when
rewording a commit. The one I chose here always splits at the first line feed,
which means that for an improperly formatted commit message such as this one:
This is a very long multi-line subject,
which you shouldn't really use in git.
And this is the body (we call it "description" in lazygit).
we split after the first line instead of after the first paragraph. This is
arguably not what the original author meant, but splitting after the first
paragraph doesn't really work well in lazygit, because we would try to put both
lines into the one-line subject field of the message panel, and you'd only see
the second and not even know that there are more.
The other potential fix would have been to join subject and description with two
line feeds instead of one in JoinCommitMessageAndDescription; this would have
fixed our bug in the same way, but would result in splitting the above message
after the second line instead of the first. I think that's worse, so I decided
for the first fix.
While we're at it, simplify the code a little bit; strings.Cut is documented to
return (s, "") when the separator is not found, so there's no need to do this on
our side.
We do have to trim spaces on the description now, to support the regular reword
case where subject and body are separated by a blank line.
SplitCommitMessageAndDescription splits at the first '\n\n' that it finds (if
there is one), which in this case is between the two paragraphs of the
description. This is wrong.
Use git log instead of git rev-list, this way we don't get a line "commit <sha>"
at the beginning that we then have to discard again.
The test TestGetCommitMsg is becoming a bit pointless now, since it just
compares that input and output are identical.
Closes#3187
- **PR Description**
#3187 observes that lazygit crashes with a stack trace if it's run from
a non-existent current working directory. The steps to reproduce are:
```
mkdir test
cd test
rm -r ../test
lazygit
```
(Note: I can repro this on Ubuntu, but not on macOS Sonoma, where
lazygit starts regardless of whether the current working directory
exists or not.)
Here's how the repro steps look on Ubuntu with this PR applied:
```
simon@ubuntu:/Users/simon/src/3p/lazygit$ go build .
simon@ubuntu:/Users/simon/src/3p/lazygit$ mkdir deleteme
simon@ubuntu:/Users/simon/src/3p/lazygit$ cd deleteme/
simon@ubuntu:/Users/simon/src/3p/lazygit/deleteme$ rm -r ../deleteme
simon@ubuntu:/Users/simon/src/3p/lazygit/deleteme$ ../lazygit
2024/01/02 18:40:15 Error: the current working directory does not exist
```
- **Please check if the PR fulfills these requirements**
* [x] Cheatsheets are up-to-date (run `go generate ./...`)
* [x] Code has been formatted (see
[here](https://github.com/jesseduffield/lazygit/blob/master/CONTRIBUTING.md#code-formatting))
* [x] Tests have been added/updated (see
[here](https://github.com/jesseduffield/lazygit/blob/master/pkg/integration/README.md)
for the integration test guide)
* [x] Text is internationalised (see
[here](https://github.com/jesseduffield/lazygit/blob/master/CONTRIBUTING.md#internationalisation))
* [x] Docs (specifically `docs/Config.md`) have been updated if
necessary
* [x] You've read through your own file changes for silly mistakes etc
<!--
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see https://github.com/jesseduffield/lazygit/releases/tag/v0.40.0 for
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Without this it's not reliably possible to ask whether a given view is visible
by asking
windowHelper.TopViewInWindow(context.GetWindowName()) == context.GetView()
because there could be transient, invisible contexts after it in the Z order.
I guess it's a bit of a coincidence that this has never been a problem so far.
The output of the GetWindowDimensions function is hard to understand just by looking at it,
so I've added a helper function in the tests to render the window layout as text, so that
in order to create a new test you just come up with some args and paste the output as the
expected output.
This has the same downsides that any snapshot-based testing has: it's more brittle than
targeted assertions. But it is much easier to make sense of these snapshots than it is
to make sense of more fine-grained assertions, and I like the fact that these tests can
serve as documentation.
We are also removing the single-character padding on the left/right edges of the bottom
line because it's unnecessary
Unfortunately we need to create views for each spacer: it's not enough to just
layout the existing views with padding inbetween because gocui only renders
views meaning if there is no view in a given position, that position will just
render whatever was there previously (at least that's what I recall from talking
this through with Stefan: I could be way off).
Co-authored-by: Stefan Haller <stefan@haller-berlin.de>
It sounds like at some point we only showed a slash as the search prompt, but I
dug a bit through the history and couldn't find a state of the code where that
was the case. (shrug)
