Add Svelte-native live mode adapter (#179)

* Fix live preview state for framework components

* Complete stateful live preview coverage

* Record Svelte manual validation

* Fix Svelte live mode adapter

* Fix live Steer apply flow

* Fix Svelte live variant refresh recovery

* Fix live exit bar teardown

* Consolidate Svelte live DeepSeek sweep

* Reconcile Svelte live browser after main rebase

* Fix live accept review regressions

* Fix carbonize column-zero indentation

* Fix live poll lease expiry flake

* Fix Svelte shader preview capture
This commit is contained in:
Abdul Wahab
2026-06-02 00:08:57 -07:00
committed by GitHub
parent 69b5f3af49
commit 6163ca0529
212 changed files with 51520 additions and 4992 deletions
+75 -23
View File
@@ -15,6 +15,11 @@ import fs from 'node:fs';
import path from 'node:path';
import { isGeneratedFile } from './is-generated.mjs';
import { readBuffer as readManualEditsBuffer } from './live-manual-edits-buffer.mjs';
import {
buildSvelteComponentCssAuthoring,
scaffoldSvelteComponentSession,
shouldUseSvelteComponentInjection,
} from './live-svelte-component.mjs';
const EXTENSIONS = ['.html', '.jsx', '.tsx', '.vue', '.svelte', '.astro'];
@@ -262,6 +267,8 @@ The agent should insert variant HTML at insertLine.`);
.map((l) => (l.trim() === '' ? '' : indent + extra + l.slice(originalBaseIndent)))
.join('\n');
const originalIndented = reindentOriginal(' ');
const relTargetFile = path.relative(process.cwd(), targetFile).split(path.sep).join('/');
const useSvelteComponent = shouldUseSvelteComponentInjection(targetFile);
// Wrapper attributes differ by syntax. HTML allows plain string attrs;
// JSX requires object-literal style and parses string attrs as HTML (which
@@ -302,38 +309,75 @@ The agent should insert variant HTML at insertLine.`);
indent + commentSyntax.open + ' impeccable-variants-end ' + id + ' ' + commentSyntax.close,
];
// Replace the original element with the wrapper
const newLines = [
...lines.slice(0, startLine),
...wrapperLines,
...lines.slice(endLine + 1),
];
fs.writeFileSync(targetFile, newLines.join('\n'), 'utf-8');
let outputFile = targetFile;
let outputLines;
let outputStartLine = startLine + 1;
let outputEndLine = startLine + wrapperLines.length + (originalLines.length - 1);
let insertLine;
let svelteSession = null;
// Calculate insert line (the "insert below this line" comment).
// 0-indexed file position. Both HTML and JSX wrappers have 6 lines above
// the insert marker (HTML: start-comment + outer-div + Original-comment +
// original-div + content + close-original-div; JSX: outer-div +
// start-comment + Original-comment + original-div + content +
// close-original-div). Multi-line originals push the marker by their
// extra line count.
const insertLine = startLine + 6 + (originalLines.length - 1);
if (useSvelteComponent) {
// Svelte/SvelteKit resets component-local state on markup HMR updates.
// Keep generation source-neutral: agents write real variant components
// under the generated componentDir, the browser mounts them into the live
// DOM, and live-accept.mjs inlines the accepted variant back into the route.
svelteSession = scaffoldSvelteComponentSession({
id,
count,
sourceFile: relTargetFile,
sourceStartLine: startLine + 1,
sourceEndLine: endLine + 1,
originalLines,
cwd: process.cwd(),
});
outputFile = path.resolve(process.cwd(), svelteSession.manifestFile);
outputStartLine = 1;
outputEndLine = 1;
insertLine = 1;
} else {
// Replace the original element with the wrapper
const newLines = [
...lines.slice(0, startLine),
...wrapperLines,
...lines.slice(endLine + 1),
];
fs.writeFileSync(targetFile, newLines.join('\n'), 'utf-8');
// Calculate insert line (the "insert below this line" comment).
// 0-indexed file position. Both HTML and JSX wrappers have 6 lines above
// the insert marker (HTML: start-comment + outer-div + Original-comment +
// original-div + content + close-original-div; JSX: outer-div +
// start-comment + Original-comment + original-div + content +
// close-original-div). Multi-line originals push the marker by their
// extra line count.
insertLine = startLine + 6 + (originalLines.length - 1) + 1;
}
const outputRelFile = path.relative(process.cwd(), outputFile).split(path.sep).join('/');
const svelteComponentAuthoring = useSvelteComponent ? buildSvelteComponentCssAuthoring(count) : null;
console.log(JSON.stringify({
file: path.relative(process.cwd(), targetFile),
startLine: startLine + 1, // 1-indexed for the agent
file: outputRelFile,
sourceFile: useSvelteComponent ? relTargetFile : undefined,
previewMode: useSvelteComponent ? 'svelte-component' : undefined,
componentDir: svelteSession?.componentDir,
propContract: svelteSession?.propContract,
sourceStartLine: useSvelteComponent ? startLine + 1 : undefined,
sourceEndLine: useSvelteComponent ? endLine + 1 : undefined,
startLine: outputStartLine, // 1-indexed for the agent
// wrapperLines is an array but one element (the original-content slot)
// is a `\n`-joined multi-line string, so the actual file-row count is
// wrapperLines.length + (originalLines.length - 1). Without the offset,
// endLine pointed inside the wrapper for any picked element that
// spanned more than one source line.
endLine: startLine + wrapperLines.length + (originalLines.length - 1), // 1-indexed
insertLine: insertLine + 1, // 1-indexed: where variants go
endLine: outputEndLine, // 1-indexed
insertLine, // 1-indexed: where variants go
commentSyntax: commentSyntax,
styleMode: styleMode.mode,
styleTag: styleMode.styleTag,
cssSelectorPrefixExamples: buildCssSelectorPrefixExamples(styleMode.mode, count),
cssAuthoring: buildCssAuthoring(styleMode, count),
styleMode: useSvelteComponent ? 'svelte-component' : styleMode.mode,
styleTag: useSvelteComponent ? null : styleMode.styleTag,
cssSelectorPrefixExamples: useSvelteComponent ? [] : buildCssSelectorPrefixExamples(styleMode.mode, count),
cssAuthoring: useSvelteComponent ? svelteComponentAuthoring : buildCssAuthoring(styleMode, count),
originalLineCount: originalLines.length,
}));
}
@@ -527,6 +571,14 @@ function splitClassList(classes) {
return String(classes).split(/[,\s]+/).map(c => c.trim()).filter(Boolean);
}
function attrEscapeDouble(str) {
return String(str)
.replace(/&/g, '&')
.replace(/"/g, '"')
.replace(/</g, '&lt;')
.replace(/>/g, '&gt;');
}
function detectCommentSyntax(filePath) {
const ext = path.extname(filePath).toLowerCase();
if (ext === '.jsx' || ext === '.tsx') {