chore: complete bump script

bumpversion.ts

@@ -7,10 +7,10 @@ const run = (...args: ConstructorParameters<typeof Deno.Command>) =>
   new Deno.Command(...args).output()
     .then((data: { stdout: BufferSource }) => dec(data.stdout));
 
-const git = (args?: string[]) => run("git", { args });
+const git = (...args: string[]) => run("git", { args });
+const convco = (args?: string[]) => run("convco", { args });
 
-const convcoNextVersion = () =>
-  run("convco", { args: ["version", "--bump", "HEAD"] });
+const convcoNextVersion = () => convco(["version", "--bump", "HEAD"]);
 
 interface DenoJson extends Record<string, unknown> {
   version: string;
@@ -29,13 +29,24 @@ async function setVersion(newVersion: string, json: DenoJson) {
 
 const denoData = await readDeno();
 
-const current_branch = await git(["rev-parse", "--abbrev-ref", "HEAD"]);
+const current_branch = await git("rev-parse", "--abbrev-ref", "HEAD");
 const release_branch = "main";
-const next_version = await convcoNextVersion();
 
-if (current_branch != release_branch) {
-  console.error(`can only bump version on ${release_branch}`);
-  Deno.exit(1);
-} else {
-  await setVersion(next_version, denoData);
+if (import.meta.main) {
+  if (current_branch != release_branch) {
+    console.error(`can only bump version on ${release_branch}`);
+    Deno.exit(1);
+  } else {
+    const next_version = await convcoNextVersion();
+    await git("add", "deno.json", "deno.lock");
+    await git("commit", "-m", '"chore: bump version"');
+
+    await git("tag", `v${next_version}`);
+    await convco(["changelog", "-o", "CHANGELOG.md"]);
+
+    await git("add", "changelog");
+    await git("commit", "-m", '"chore: changelog"');
+
+    await setVersion(next_version, denoData);
+  }
 }