add script to yeet prerelease changelogs

Author: chaance

package.json

@@ -9,11 +9,12 @@
     "build": "pnpm run --recursive --if-present build",
     "test": "pnpm run --recursive --if-present test",
     "changeset": "changeset",
-    "changeset:version": "changeset version && node ./scripts/remove-prerelease-changelogs.mjs && node ./scripts/patchup-version.mjs",
+    "changeset:version": "changeset version && node ./scripts/remove-prerelease-changelogs.mjs",
     "changeset:release": "pnpm run build && changeset publish"
   },
   "dependencies": {
     "@changesets/cli": "^2.26.1",
+    "@manypkg/get-packages": "^2.1.0",
     "@remix-run/changelog-github": "^0.0.5",
     "@tsconfig/node16": "^1.0.3",
     "@types/node": "^18.15.11",

pnpm-lock.yaml

@@ -0,0 +1,122 @@
+import * as fs from "node:fs";
+import path from "node:path";
+import * as url from "node:url";
+import { getPackagesSync } from "@manypkg/get-packages";
+
+const __dirname = url.fileURLToPath(new URL(".", import.meta.url));
+const rootDir = path.join(__dirname, "..");
+
+const DRY_RUN = false;
+// pre-release headings look like: "1.15.0-pre.2"
+const PRE_RELEASE_HEADING_REGEXP = /^\d+\.\d+\.\d+-pre\.\d+$/i;
+// pre-release headings look like: "1.15.0"
+const STABLE_HEADING_REGEXP = /^\d+\.\d+\.\d+$/i;
+
+main();
+
+async function main() {
+  //   if (isPrereleaseMode()) {
+  //     console.log("🚫 Skipping changelog removal in prerelease mode");
+  //     return;
+  //   }
+  await removePreReleaseChangelogs();
+  console.log("✅ Removed pre-release changelogs");
+}
+
+async function removePreReleaseChangelogs() {
+  let allPackages = getPackagesSync(rootDir).packages;
+
+  /** @type {Promise<any>[]} */
+  let processes = [];
+  for (let pkg of allPackages) {
+    let changelogPath = path.join(pkg.dir, "CHANGELOG.md");
+    if (!fs.existsSync(changelogPath)) {
+      continue;
+    }
+    let changelogFileContents = fs.readFileSync(changelogPath, "utf-8");
+    processes.push(
+      (async () => {
+        let preReleaseHeadingIndex = findHeadingLineIndex(
+          changelogFileContents,
+          {
+            level: 2,
+            startAtIndex: 0,
+            matcher: PRE_RELEASE_HEADING_REGEXP,
+          }
+        );
+
+        while (preReleaseHeadingIndex !== -1) {
+          let nextStableHeadingIndex = findHeadingLineIndex(
+            changelogFileContents,
+            {
+              level: 2,
+              startAtIndex: preReleaseHeadingIndex + 1,
+              matcher: STABLE_HEADING_REGEXP,
+            }
+          );
+
+          // remove all lines between the pre-release heading and the next stable
+          // heading
+          changelogFileContents = removeLines(changelogFileContents, {
+            start: preReleaseHeadingIndex,
+            end: nextStableHeadingIndex === -1 ? "max" : nextStableHeadingIndex,
+          });
+
+          // find the next pre-release heading
+          preReleaseHeadingIndex = findHeadingLineIndex(changelogFileContents, {
+            level: 2,
+            startAtIndex: 0,
+            matcher: PRE_RELEASE_HEADING_REGEXP,
+          });
+        }
+
+        if (DRY_RUN) {
+          console.log("FILE CONTENTS:\n\n" + changelogFileContents);
+        } else {
+          await fs.promises.writeFile(
+            changelogPath,
+            changelogFileContents,
+            "utf-8"
+          );
+        }
+      })()
+    );
+  }
+  return Promise.all(processes);
+}
+
+function isPrereleaseMode() {
+  try {
+    let prereleaseFilePath = path.join(rootDir, ".changeset", "pre.json");
+    return fs.existsSync(prereleaseFilePath);
+  } catch (err) {
+    return false;
+  }
+}
+
+/**
+ * @param {string} markdownContents
+ * @param {{ level: number; startAtIndex: number; matcher: RegExp }} opts
+ */
+function findHeadingLineIndex(
+  markdownContents,
+  { level, startAtIndex, matcher }
+) {
+  let index = markdownContents.split("\n").findIndex((line, i) => {
+    if (i < startAtIndex || !line.startsWith(`${"#".repeat(level)} `))
+      return false;
+    let headingContents = line.slice(level + 1).trim();
+    return matcher.test(headingContents);
+  });
+  return index;
+}
+
+/**
+ * @param {string} markdownContents
+ * @param {{ start: number; end: number | 'max' }} param1
+ */
+function removeLines(markdownContents, { start, end }) {
+  let lines = markdownContents.split("\n");
+  lines.splice(start, end === "max" ? lines.length - start : end - start);
+  return lines.join("\n");
+}

scripts/remove-prerelease-changelogs.mjs

@@ -0,0 +1,15 @@
+{
+  "include": ["."],
+  "exclude": ["./deployment-test", "./playground/template/**/*"],
+  "compilerOptions": {
+    "allowJs": true,
+    "checkJs": true,
+    "forceConsistentCasingInFileNames": true,
+    "allowSyntheticDefaultImports": true,
+    "moduleResolution": "nodenext",
+    "module": "ESNext",
+    "noEmit": true,
+    "strict": true,
+    "target": "ES2018"
+  }
+}