fix: warn on self-scoped composition selectors (#562)

This commit is contained in:
Miguel Ángel
2026-04-29 18:13:51 +02:00
committed by GitHub
parent 328bba0384
commit 403c00eeae
6 changed files with 176 additions and 5 deletions
@@ -99,6 +99,28 @@ describe("lintProject", () => {
expect(subFindings.some((f) => f.code === "media_missing_id")).toBe(true); expect(subFindings.some((f) => f.code === "media_missing_id")).toBe(true);
}); });
it("lints linked CSS next to sub-compositions", () => {
const project = makeProject(validHtml(), {
"scene.html": `<html><head><link rel="stylesheet" href="scene.css"></head><body>
<div id="scene" data-composition-id="scene" data-width="1920" data-height="1080" data-start="0" data-duration="2"></div>
<script>window.__timelines = window.__timelines || {}; window.__timelines["scene"] = gsap.timeline({ paused: true });</script>
</body></html>`,
});
writeFileSync(
join(project.dir, "compositions", "scene.css"),
'[data-composition-id="scene"] .title { opacity: 0; }',
);
const { results } = lintProject(project);
const subResult = results.find((result) => result.file === "compositions/scene.html");
const finding = subResult?.result.findings.find(
(item) => item.code === "composition_self_attribute_selector",
);
expect(finding).toBeDefined();
expect(finding?.selector).toBe('[data-composition-id="scene"] .title');
});
it("aggregates errors across index.html and sub-compositions", () => { it("aggregates errors across index.html and sub-compositions", () => {
const project = makeProject(htmlWithMissingMediaId(), { const project = makeProject(htmlWithMissingMediaId(), {
"overlay.html": htmlWithMissingMediaId(), "overlay.html": htmlWithMissingMediaId(),
+38 -4
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@@ -1,5 +1,5 @@
import { existsSync, readFileSync, readdirSync } from "node:fs"; import { existsSync, readFileSync, readdirSync } from "node:fs";
import { join, resolve, extname } from "node:path"; import { dirname, join, resolve, extname } from "node:path";
import { lintHyperframeHtml, type HyperframeLintResult } from "@hyperframes/core/lint"; import { lintHyperframeHtml, type HyperframeLintResult } from "@hyperframes/core/lint";
import type { HyperframeLintFinding } from "@hyperframes/core/lint"; import type { HyperframeLintFinding } from "@hyperframes/core/lint";
import { rewriteAssetPath } from "@hyperframes/core"; import { rewriteAssetPath } from "@hyperframes/core";
@@ -27,6 +27,32 @@ export interface ProjectLintResult {
const AUDIO_EXTENSIONS = new Set([".mp3", ".wav", ".aac", ".ogg", ".m4a", ".flac", ".opus"]); const AUDIO_EXTENSIONS = new Set([".mp3", ".wav", ".aac", ".ogg", ".m4a", ".flac", ".opus"]);
function isLocalStylesheetHref(href: string): boolean {
return !!href && !/^(https?:|data:|blob:|\/\/)/i.test(href);
}
function collectExternalStyles(
projectDir: string,
html: string,
compSrcPath?: string,
): Array<{ href: string; content: string }> {
const styles: Array<{ href: string; content: string }> = [];
const linkRe = /<link\b[^>]*>/gi;
let match: RegExpExecArray | null;
while ((match = linkRe.exec(html)) !== null) {
const tag = match[0];
const rel = tag.match(/\brel\s*=\s*["']([^"']+)["']/i)?.[1] ?? "";
if (!rel.split(/\s+/).some((part) => part.toLowerCase() === "stylesheet")) continue;
const href = tag.match(/\bhref\s*=\s*["']([^"']+)["']/i)?.[1] ?? "";
if (!isLocalStylesheetHref(href)) continue;
const rootRelative = compSrcPath ? join(dirname(compSrcPath), href) : href;
const resolved = resolve(projectDir, rootRelative);
if (!existsSync(resolved)) continue;
styles.push({ href, content: readFileSync(resolved, "utf-8") });
}
return styles;
}
/** /**
* Lint the root index.html and all sub-compositions in the compositions/ directory. * Lint the root index.html and all sub-compositions in the compositions/ directory.
* Returns aggregated results across all files. * Returns aggregated results across all files.
@@ -39,7 +65,10 @@ export function lintProject(project: ProjectDir): ProjectLintResult {
// Lint root composition // Lint root composition
const rootHtml = readFileSync(project.indexPath, "utf-8"); const rootHtml = readFileSync(project.indexPath, "utf-8");
const rootResult = lintHyperframeHtml(rootHtml, { filePath: project.indexPath }); const rootResult = lintHyperframeHtml(rootHtml, {
filePath: project.indexPath,
externalStyles: collectExternalStyles(project.dir, rootHtml),
});
results.push({ file: "index.html", result: rootResult }); results.push({ file: "index.html", result: rootResult });
totalErrors += rootResult.errorCount; totalErrors += rootResult.errorCount;
totalWarnings += rootResult.warningCount; totalWarnings += rootResult.warningCount;
@@ -53,8 +82,13 @@ export function lintProject(project: ProjectDir): ProjectLintResult {
for (const file of files) { for (const file of files) {
const filePath = join(compositionsDir, file); const filePath = join(compositionsDir, file);
const html = readFileSync(filePath, "utf-8"); const html = readFileSync(filePath, "utf-8");
allHtmlSources.push({ html, compSrcPath: `compositions/${file}` }); const compSrcPath = `compositions/${file}`;
const result = lintHyperframeHtml(html, { filePath, isSubComposition: true }); allHtmlSources.push({ html, compSrcPath });
const result = lintHyperframeHtml(html, {
filePath,
isSubComposition: true,
externalStyles: collectExternalStyles(project.dir, html, compSrcPath),
});
results.push({ file: `compositions/${file}`, result }); results.push({ file: `compositions/${file}`, result });
totalErrors += result.errorCount; totalErrors += result.errorCount;
totalWarnings += result.warningCount; totalWarnings += result.warningCount;
+9 -1
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@@ -34,7 +34,15 @@ export function buildLintContext(html: string, options: HyperframeLinterOptions
if (templateMatch?.[1]) source = templateMatch[1]; if (templateMatch?.[1]) source = templateMatch[1];
const tags = extractOpenTags(source); const tags = extractOpenTags(source);
const styles = extractBlocks(source, STYLE_BLOCK_PATTERN); const styles = [
...extractBlocks(source, STYLE_BLOCK_PATTERN),
...(options.externalStyles ?? []).map((style) => ({
attrs: `href="${style.href}"`,
content: style.content,
raw: style.content,
index: -1,
})),
];
const scripts = extractBlocks(source, SCRIPT_BLOCK_PATTERN); const scripts = extractBlocks(source, SCRIPT_BLOCK_PATTERN);
const compositionIds = collectCompositionIds(tags); const compositionIds = collectCompositionIds(tags);
const rootTag = findRootTag(source); const rootTag = findRootTag(source);
+60
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@@ -143,4 +143,64 @@ describe("core rules", () => {
expect(finding).toBeUndefined(); expect(finding).toBeUndefined();
}); });
}); });
describe("composition_self_attribute_selector", () => {
it("warns when inline CSS targets the root composition id", () => {
const html = `
<html><body>
<div id="scene" data-composition-id="scene" data-width="1920" data-height="1080">
<style>
[data-composition-id="scene"] .title { opacity: 0; }
[data-composition-id="other"] .title { color: red; }
</style>
<h1 class="title">Hello</h1>
</div>
<script>window.__timelines = {};</script>
</body></html>`;
const result = lintHyperframeHtml(html);
const findings = result.findings.filter(
(f) => f.code === "composition_self_attribute_selector",
);
expect(findings).toHaveLength(1);
expect(findings[0]?.severity).toBe("warning");
expect(findings[0]?.selector).toBe('[data-composition-id="scene"] .title');
expect(findings[0]?.fixHint).toContain("#scene");
expect(findings[0]?.fixHint).not.toContain("#556");
});
it("warns when external CSS targets the root composition id", () => {
const html = `
<html><body>
<div id="scene" data-composition-id="scene" data-width="1920" data-height="1080"></div>
<script>window.__timelines = {};</script>
</body></html>`;
const result = lintHyperframeHtml(html, {
externalStyles: [
{
href: "scene.css",
content: '[data-composition-id="scene"] .title { opacity: 0; }',
},
],
});
const finding = result.findings.find((f) => f.code === "composition_self_attribute_selector");
expect(finding).toBeDefined();
expect(finding?.selector).toBe('[data-composition-id="scene"] .title');
});
it("does not warn when CSS targets a different composition id", () => {
const html = `
<html><body>
<div id="scene" data-composition-id="scene" data-width="1920" data-height="1080">
<style>[data-composition-id="other"] .title { opacity: 0; }</style>
</div>
<script>window.__timelines = {};</script>
</body></html>`;
const result = lintHyperframeHtml(html);
const finding = result.findings.find((f) => f.code === "composition_self_attribute_selector");
expect(finding).toBeUndefined();
});
});
}); });
+46
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@@ -1,4 +1,5 @@
import type { LintContext, HyperframeLintFinding } from "../context"; import type { LintContext, HyperframeLintFinding } from "../context";
import postcss from "postcss";
import { import {
readAttr, readAttr,
truncateSnippet, truncateSnippet,
@@ -9,6 +10,17 @@ import {
INVALID_SCRIPT_CLOSE_PATTERN, INVALID_SCRIPT_CLOSE_PATTERN,
} from "../utils"; } from "../utils";
function escapeRegExp(value: string): string {
return value.replace(/[.*+?^${}()|[\]\\]/g, "\\$&");
}
function selectorTargetsCompositionId(selector: string, compositionId: string): boolean {
const escaped = escapeRegExp(compositionId);
return new RegExp(
String.raw`\[\s*data-composition-id\s*=\s*(?:"${escaped}"|'${escaped}')\s*\]`,
).test(selector);
}
export const coreRules: Array<(ctx: LintContext) => HyperframeLintFinding[]> = [ export const coreRules: Array<(ctx: LintContext) => HyperframeLintFinding[]> = [
// root_missing_composition_id + root_missing_dimensions // root_missing_composition_id + root_missing_dimensions
({ rootTag }) => { ({ rootTag }) => {
@@ -167,6 +179,40 @@ export const coreRules: Array<(ctx: LintContext) => HyperframeLintFinding[]> = [
return findings; return findings;
}, },
// composition_self_attribute_selector
({ styles, rootCompositionId, rootTag }) => {
const findings: HyperframeLintFinding[] = [];
if (!rootCompositionId) return findings;
const seenSelectors = new Set<string>();
const rootId = readAttr(rootTag?.raw || "", "id");
for (const style of styles) {
let root: postcss.Root;
try {
root = postcss.parse(style.content);
} catch {
continue;
}
root.walkRules((rule) => {
for (const selector of rule.selectors) {
if (!selectorTargetsCompositionId(selector, rootCompositionId)) continue;
if (seenSelectors.has(selector)) continue;
seenSelectors.add(selector);
findings.push({
code: "composition_self_attribute_selector",
severity: "warning",
message:
"Selector matches the block's own id; will leak to sibling instances when the block is embedded twice.",
selector,
fixHint: rootId
? `Use #${rootId} for clearer authoring intent and instance-isolated styling.`
: "Add a stable id to the composition root and use that id selector for clearer authoring intent and instance-isolated styling.",
});
}
});
}
return findings;
},
// non_deterministic_code // non_deterministic_code
({ scripts }) => { ({ scripts }) => {
const findings: HyperframeLintFinding[] = []; const findings: HyperframeLintFinding[] = [];
+1
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@@ -22,6 +22,7 @@ export type HyperframeLintResult = {
export type HyperframeLinterOptions = { export type HyperframeLinterOptions = {
filePath?: string; filePath?: string;
isSubComposition?: boolean; isSubComposition?: boolean;
externalStyles?: Array<{ href: string; content: string }>;
}; };
// A rule is a pure function: receives parsed context, returns zero or more findings. // A rule is a pure function: receives parsed context, returns zero or more findings.