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Add swap file journaling for crash recovery.

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- Introduced `SwapManager` for buffering and writing incremental edits to sidecar `.kte.swp` files.
- Implemented basic operations: insertion, deletion, split, join, and checkpointing.
- Added recovery design doc (`docs/plans/swap-files.md`).
- Updated editor initialization to integrate `SwapManager` instance for crash recovery across buffers.
This commit is contained in:
Kyle Isom
2025-12-04 08:48:32 -08:00
parent 495183ebd2
commit 78b9345799
24 changed files with 1933 additions and 545 deletions
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73
TerminalRenderer.cc
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@@ -111,19 +111,44 @@ TerminalRenderer::Draw(Editor &ed)
std::string line = static_cast<std::string>(lines[li]);
src_i = 0;
render_col = 0;
// Syntax highlighting: fetch per-line spans
const kte::LineHighlight *lh_ptr = nullptr;
// Syntax highlighting: fetch per-line spans (sanitized copy)
std::vector<kte::HighlightSpan> sane_spans;
if (buf->SyntaxEnabled() && buf->Highlighter() && buf->Highlighter()->
HasHighlighter()) {
lh_ptr = &buf->Highlighter()->GetLine(
kte::LineHighlight lh_val = buf->Highlighter()->GetLine(
*buf, static_cast<int>(li), buf->Version());
// Sanitize defensively: clamp to [0, line.size()], ensure end>=start, drop empties
const std::size_t line_len = line.size();
sane_spans.reserve(lh_val.spans.size());
for (const auto &sp: lh_val.spans) {
int s_raw = sp.col_start;
int e_raw = sp.col_end;
if (e_raw < s_raw)
std::swap(e_raw, s_raw);
std::size_t s = static_cast<std::size_t>(std::max(
0, std::min(s_raw, static_cast<int>(line_len))));
std::size_t e = static_cast<std::size_t>(std::max(
static_cast<int>(s),
std::min(e_raw, static_cast<int>(line_len))));
if (e <= s)
continue;
sane_spans.push_back(kte::HighlightSpan{
static_cast<int>(s), static_cast<int>(e), sp.kind
});
}
std::sort(sane_spans.begin(), sane_spans.end(),
[](const kte::HighlightSpan &a, const kte::HighlightSpan &b) {
return a.col_start < b.col_start;
});
}
auto token_at = [&](std::size_t src_index) -> kte::TokenKind {
if (!lh_ptr)
if (sane_spans.empty())
return kte::TokenKind::Default;
for (const auto &sp: lh_ptr->spans) {
if (static_cast<int>(src_index) >= sp.col_start && static_cast<int>(
src_index) < sp.col_end)
int si = static_cast<int>(src_index);
for (const auto &sp: sane_spans) {
if (si < sp.col_start)
break;
if (si >= sp.col_start && si < sp.col_end)
return sp.kind;
}
return kte::TokenKind::Default;
@@ -132,23 +157,23 @@ TerminalRenderer::Draw(Editor &ed)
// Map to simple attributes; search highlight uses A_STANDOUT which takes precedence below
attrset(A_NORMAL);
switch (k) {
case kte::TokenKind::Keyword:
case kte::TokenKind::Type:
case kte::TokenKind::Constant:
case kte::TokenKind::Function:
attron(A_BOLD);
break;
case kte::TokenKind::Comment:
attron(A_DIM);
break;
case kte::TokenKind::String:
case kte::TokenKind::Char:
case kte::TokenKind::Number:
// standout a bit using A_UNDERLINE if available
attron(A_UNDERLINE);
break;
default:
break;
case kte::TokenKind::Keyword:
case kte::TokenKind::Type:
case kte::TokenKind::Constant:
case kte::TokenKind::Function:
attron(A_BOLD);
break;
case kte::TokenKind::Comment:
attron(A_DIM);
break;
case kte::TokenKind::String:
case kte::TokenKind::Char:
case kte::TokenKind::Number:
// standout a bit using A_UNDERLINE if available
attron(A_UNDERLINE);
break;
default:
break;
}
};
while (written < cols) {