From c04df904f2fa686cbe5ce0c078a96260af7b08bd Mon Sep 17 00:00:00 2001 From: Gabriel Schneider Date: Wed, 30 Sep 2026 15:39:20 -0300 Subject: A diff reads as the code it changes: hunks in their file's language, added and removed rows tinted A .diff or .patch pane, and a command pane whose output is a diff (`git diff`, `git show`, `diff -u`; told by a `diff --git` line, or `---`/`+++` with a `@@` under them, in its first rows), colour each hunk's code in the language of the file its section names (`+++ b/`, `--- a/` for a deleted file), with tree-sitter, as highlightLocations does for results. src/diff.zig walks a unified diff by its `@@` counts, so a removed line that reads `--- x` is no header. Each side of a hunk is parsed as one text (context and removed lines the old side, context and added lines the new), so a string or comment across lines colours as it does in the file; a side no line takes its colours from is not parsed. A section's hunks share a parse, in pieces of about 40 lines (a hunk past 80 is cut), only those in view, and each piece's colours are kept by its bytes, so scrolling back and a terminal's every repaint parse nothing again. Added and removed lines carry a flag in their style byte; the painter tints their rows to the pane's edge, a little way from the page toward the theme's ANSI green or red, and draws the prefix in that hue pushed to read on it. A file in no known language keeps the old line colours. A command pane is read once its command has finished: its rows are copied once (File.DiffOutput, dropped when the pane runs again), so no frame dumps the scrollback, and painted over what git printed. A running command is shown as it prints. Co-Authored-By: Claude Opus 5.5 --- src/pardes.zig | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'src/pardes.zig') diff --git a/src/pardes.zig b/src/pardes.zig index b16d39b7..9fe6a1fb 100644 --- a/src/pardes.zig +++ b/src/pardes.zig @@ -4502,6 +4502,9 @@ pub const Pardes = struct { /// the terminal motion surface, memoized against the pane it was built /// for — see panes.terminal.RowsCache for the lifetime rule shell_rows: panes.terminal.RowsCache = .{}, + /// Finished command panes' output, and whether it is a diff + /// (File.DiffOutput). + diff_output: panes.File.DiffOutput = .{}, /// The message row's entry points, called from everywhere as /// `p.setMessage(...)`; they live with the rest of it in Messages.zig. @@ -4752,6 +4755,7 @@ pub const Pardes = struct { p.locations_cache.deinit(p.tree_sitter_gpa); p.fs.deinit(gpa); p.shell_rows.reset(gpa); + p.diff_output.reset(gpa); p.scratch.deinit(); p.frame_arena.deinit(); gpa.free(p.surface.cells); -- cgit v1.3