fix(release): allow preparation on main

scripts/release.mjs

@@ -47,12 +47,9 @@ const assertCleanWorkingTree = (git) => {
     if (changes) throw new Error("Release requires a clean working tree");
 };
 
-const assertReleaseBranch = (git) => {
+const assertNamedBranch = (git) => {
     const branch = getCurrentBranch(git);
     if (!branch) throw new Error("Release preparation requires a named branch");
-    if (branch === mainBranch) {
-        throw new Error("Release preparation must run on a release branch, not main");
-    }
     return branch;
 };
 
@@ -133,7 +130,7 @@ const runQualityGates = (pnpm) => {
 export const prepareRelease = ({ rootDir = workspaceDir, releaseType = "patch", execute } = {}) => {
     const { git, pnpm } = createCommandRunner(rootDir, execute);
     assertCleanWorkingTree(git);
-    const branch = assertReleaseBranch(git);
+    const branch = assertNamedBranch(git);
     fetchMain(git);
     assertBranchIncludesMain(git);
 

scripts/release.test.mjs

@@ -102,17 +102,32 @@ test("prepares a patch release using only root-derived version mirrors", () => {
     );
 });
 
-test("refuses to alter main during release preparation", () => {
+test("prepares a release directly on main", () => {
     const rootDir = createWorkspace();
-    const { execute } = createRunner(
+    const { calls, execute } = createRunner(
         new Map([
             [commandKey("git", ["status", "--porcelain"]), ""],
             [commandKey("git", ["branch", "--show-current"]), "main\n"],
+            [commandKey("git", ["rev-parse", "origin/main"]), "main-sha\n"],
+            [commandKey("git", ["merge-base", "origin/main", "HEAD"]), "main-sha\n"],
+            [commandKey("git", ["diff", "--name-only"]), `${expectedFiles.join("\n")}\n`],
+            [commandKey("git", ["ls-files", "--others", "--exclude-standard"]), ""],
+            [commandKey("git", ["--no-pager", "diff", "--check"]), ""],
+            [
+                commandKey("git", ["diff", "--cached", "--name-only"]),
+                `${expectedFiles.join("\n")}\n`,
+            ],
         ]),
     );
 
-    assert.throws(() => prepareRelease({ rootDir, execute }), /not main/u);
-    assert.equal(JSON.parse(readFileSync(join(rootDir, "package.json"), "utf8")).version, "0.8.16");
+    assert.equal(prepareRelease({ rootDir, execute }), "0.8.17");
+    assert.ok(
+        calls.some(
+            ({ command, arguments_ }) =>
+                commandKey(command, arguments_) ===
+                commandKey("git", ["push", "--set-upstream", "origin", "main"]),
+        ),
+    );
 });
 
 test("restores all version files when staging fails before the release commit", () => {