源码快照 @ 2026-09-01 (source-only, 剔除非源码素材)

apps/desktop/scripts/lib/githubReleaseBody.mjs

@@ -0,0 +1,92 @@
+const GITHUB_RELEASE_BODY_MAX_LENGTH = 125_000;
+const RELEASE_NOTES_TRUNCATION_NOTICE =
+  "> Additional generated release-note entries were omitted to stay within GitHub's 125,000-character limit.";
+
+function composeReleaseBody({
+  existingBody,
+  leadingSections,
+  trailingSections,
+  truncated
+}) {
+  const sections = [
+    ...leadingSections,
+    existingBody,
+    ...(truncated ? [RELEASE_NOTES_TRUNCATION_NOTICE] : []),
+    ...trailingSections
+  ]
+    .map((section) => section.trim())
+    .filter(Boolean);
+
+  return `${sections.join("\n\n")}\n`;
+}
+
+function truncateAtLineBoundary(body, maxLength) {
+  if (maxLength <= 0) {
+    return "";
+  }
+
+  const candidate = body.slice(0, maxLength).trimEnd();
+  if (candidate.length === body.trimEnd().length) {
+    return candidate;
+  }
+
+  const lastLineBreak = candidate.lastIndexOf("\n");
+  return lastLineBreak === -1
+    ? ""
+    : candidate.slice(0, lastLineBreak).trimEnd();
+}
+
+function buildLimitedGithubReleaseBody({
+  existingBody,
+  leadingSections = [],
+  maxLength = GITHUB_RELEASE_BODY_MAX_LENGTH,
+  trailingSections = []
+}) {
+  const normalizedExistingBody = existingBody.trim();
+  const fullBody = composeReleaseBody({
+    existingBody: normalizedExistingBody,
+    leadingSections,
+    trailingSections,
+    truncated: false
+  });
+  if (fullBody.length <= maxLength) {
+    return fullBody;
+  }
+
+  const fixedBody = composeReleaseBody({
+    existingBody: "",
+    leadingSections,
+    trailingSections,
+    truncated: true
+  });
+  if (fixedBody.length > maxLength) {
+    throw new Error(
+      `Managed GitHub Release sections exceed the ${maxLength}-character limit`
+    );
+  }
+
+  const retainedExistingBody = truncateAtLineBoundary(
+    normalizedExistingBody,
+    maxLength - fixedBody.length - 2
+  );
+  const limitedBody = composeReleaseBody({
+    existingBody: retainedExistingBody,
+    leadingSections,
+    trailingSections,
+    truncated: true
+  });
+
+  if (limitedBody.length > maxLength) {
+    throw new Error(
+      `GitHub Release body exceeds the ${maxLength}-character limit after truncation`
+    );
+  }
+  return limitedBody;
+}
+
+export {
+  GITHUB_RELEASE_BODY_MAX_LENGTH,
+  RELEASE_NOTES_TRUNCATION_NOTICE,
+  buildLimitedGithubReleaseBody,
+  truncateAtLineBoundary
+};