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Editor2

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This commit is contained in:
Conrad Irwin 2023-11-02 14:36:42 -06:00
parent 9e5275cc18
commit 09efa017d4
29 changed files with 42607 additions and 0 deletions
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crates/editor2/src/git.rs Normal file
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use std::ops::Range;
use git::diff::{DiffHunk, DiffHunkStatus};
use language::Point;
use crate::{
display_map::{DisplaySnapshot, ToDisplayPoint},
AnchorRangeExt,
};
#[derive(Debug, Clone, PartialEq, Eq)]
pub enum DisplayDiffHunk {
Folded {
display_row: u32,
},
Unfolded {
display_row_range: Range<u32>,
status: DiffHunkStatus,
},
}
impl DisplayDiffHunk {
pub fn start_display_row(&self) -> u32 {
match self {
&DisplayDiffHunk::Folded { display_row } => display_row,
DisplayDiffHunk::Unfolded {
display_row_range, ..
} => display_row_range.start,
}
}
pub fn contains_display_row(&self, display_row: u32) -> bool {
let range = match self {
&DisplayDiffHunk::Folded { display_row } => display_row..=display_row,
DisplayDiffHunk::Unfolded {
display_row_range, ..
} => display_row_range.start..=display_row_range.end,
};
range.contains(&display_row)
}
}
pub fn diff_hunk_to_display(hunk: DiffHunk<u32>, snapshot: &DisplaySnapshot) -> DisplayDiffHunk {
let hunk_start_point = Point::new(hunk.buffer_range.start, 0);
let hunk_start_point_sub = Point::new(hunk.buffer_range.start.saturating_sub(1), 0);
let hunk_end_point_sub = Point::new(
hunk.buffer_range
.end
.saturating_sub(1)
.max(hunk.buffer_range.start),
0,
);
let is_removal = hunk.status() == DiffHunkStatus::Removed;
let folds_start = Point::new(hunk.buffer_range.start.saturating_sub(2), 0);
let folds_end = Point::new(hunk.buffer_range.end + 2, 0);
let folds_range = folds_start..folds_end;
let containing_fold = snapshot.folds_in_range(folds_range).find(|fold_range| {
let fold_point_range = fold_range.to_point(&snapshot.buffer_snapshot);
let fold_point_range = fold_point_range.start..=fold_point_range.end;
let folded_start = fold_point_range.contains(&hunk_start_point);
let folded_end = fold_point_range.contains(&hunk_end_point_sub);
let folded_start_sub = fold_point_range.contains(&hunk_start_point_sub);
(folded_start && folded_end) || (is_removal && folded_start_sub)
});
if let Some(fold) = containing_fold {
let row = fold.start.to_display_point(snapshot).row();
DisplayDiffHunk::Folded { display_row: row }
} else {
let start = hunk_start_point.to_display_point(snapshot).row();
let hunk_end_row = hunk.buffer_range.end.max(hunk.buffer_range.start);
let hunk_end_point = Point::new(hunk_end_row, 0);
let end = hunk_end_point.to_display_point(snapshot).row();
DisplayDiffHunk::Unfolded {
display_row_range: start..end,
status: hunk.status(),
}
}
}
#[cfg(any(test, feature = "test_support"))]
mod tests {
use crate::editor_tests::init_test;
use crate::Point;
use gpui::TestAppContext;
use multi_buffer::{ExcerptRange, MultiBuffer};
use project::{FakeFs, Project};
use unindent::Unindent;
#[gpui::test]
async fn test_diff_hunks_in_range(cx: &mut TestAppContext) {
use git::diff::DiffHunkStatus;
init_test(cx, |_| {});
let fs = FakeFs::new(cx.background());
let project = Project::test(fs, [], cx).await;
// buffer has two modified hunks with two rows each
let buffer_1 = project
.update(cx, |project, cx| {
project.create_buffer(
"
1.zero
1.ONE
1.TWO
1.three
1.FOUR
1.FIVE
1.six
"
.unindent()
.as_str(),
None,
cx,
)
})
.unwrap();
buffer_1.update(cx, |buffer, cx| {
buffer.set_diff_base(
Some(
"
1.zero
1.one
1.two
1.three
1.four
1.five
1.six
"
.unindent(),
),
cx,
);
});
// buffer has a deletion hunk and an insertion hunk
let buffer_2 = project
.update(cx, |project, cx| {
project.create_buffer(
"
2.zero
2.one
2.two
2.three
2.four
2.five
2.six
"
.unindent()
.as_str(),
None,
cx,
)
})
.unwrap();
buffer_2.update(cx, |buffer, cx| {
buffer.set_diff_base(
Some(
"
2.zero
2.one
2.one-and-a-half
2.two
2.three
2.four
2.six
"
.unindent(),
),
cx,
);
});
cx.foreground().run_until_parked();
let multibuffer = cx.add_model(|cx| {
let mut multibuffer = MultiBuffer::new(0);
multibuffer.push_excerpts(
buffer_1.clone(),
[
// excerpt ends in the middle of a modified hunk
ExcerptRange {
context: Point::new(0, 0)..Point::new(1, 5),
primary: Default::default(),
},
// excerpt begins in the middle of a modified hunk
ExcerptRange {
context: Point::new(5, 0)..Point::new(6, 5),
primary: Default::default(),
},
],
cx,
);
multibuffer.push_excerpts(
buffer_2.clone(),
[
// excerpt ends at a deletion
ExcerptRange {
context: Point::new(0, 0)..Point::new(1, 5),
primary: Default::default(),
},
// excerpt starts at a deletion
ExcerptRange {
context: Point::new(2, 0)..Point::new(2, 5),
primary: Default::default(),
},
// excerpt fully contains a deletion hunk
ExcerptRange {
context: Point::new(1, 0)..Point::new(2, 5),
primary: Default::default(),
},
// excerpt fully contains an insertion hunk
ExcerptRange {
context: Point::new(4, 0)..Point::new(6, 5),
primary: Default::default(),
},
],
cx,
);
multibuffer
});
let snapshot = multibuffer.read_with(cx, |b, cx| b.snapshot(cx));
assert_eq!(
snapshot.text(),
"
1.zero
1.ONE
1.FIVE
1.six
2.zero
2.one
2.two
2.one
2.two
2.four
2.five
2.six"
.unindent()
);
let expected = [
(DiffHunkStatus::Modified, 1..2),
(DiffHunkStatus::Modified, 2..3),
//TODO: Define better when and where removed hunks show up at range extremities
(DiffHunkStatus::Removed, 6..6),
(DiffHunkStatus::Removed, 8..8),
(DiffHunkStatus::Added, 10..11),
];
assert_eq!(
snapshot
.git_diff_hunks_in_range(0..12)
.map(|hunk| (hunk.status(), hunk.buffer_range))
.collect::<Vec<_>>(),
&expected,
);
assert_eq!(
snapshot
.git_diff_hunks_in_range_rev(0..12)
.map(|hunk| (hunk.status(), hunk.buffer_range))
.collect::<Vec<_>>(),
expected
.iter()
.rev()
.cloned()
.collect::<Vec<_>>()
.as_slice(),
);
}
}