Add hooks

cli/commands/publish.ts

@@ -1,6 +1,45 @@
 import { Colors, Path, FS, Compress, Base64 } from "../deps.ts";
 import { getMeta, IMeta, log, getConfig } from "../global.ts";
 
+async function runScript(script: string) {
+   console.log(Colors.bold(Colors.blue("Running script:")), script);
+   const runPerm = await Deno.permissions.query({
+      name: "run",
+   });
+
+   if (runPerm.state !== "granted") {
+      console.log(
+         Colors.red("Missing --allow-run permission. Cannot run hooks!")
+      );
+      throw new Error("Missing --allow-run permission. Cannot run hooks!");
+   }
+
+   const process = Deno.run({
+      cmd: ["deno", "run", "-A", "--unstable", script],
+   });
+
+   const status = await process.status();
+
+   console.log(Colors.bold(Colors.blue("Finished script:")), script);
+
+   if (!status.success) {
+      throw new Error(
+         "A hook did not complete sucessfully. This is not a issue of denreg!"
+      );
+   }
+}
+
+async function runHooks(hooks: undefined | string | string[]) {
+   if (!hooks) return;
+   if (typeof hooks === "string") {
+      hooks = [hooks];
+   }
+
+   for (const hook of hooks) {
+      await runScript(hook);
+   }
+}
+
 export default async function publish(options: { dry: boolean }) {
    const meta: IMeta = await getMeta();
 
@@ -9,6 +48,11 @@ export default async function publish(options: { dry: boolean }) {
    if (!meta.files || !Array.isArray(meta.files) || meta.files.length <= 0)
       throw new Error("files is not set or empty in meta.json");
 
+   if (meta.hooks) {
+      log("Running prepublish hooks");
+      await runHooks(meta.hooks.prepublish);
+   }
+
    const tmpDir = await Deno.makeTempDir();
    const packedFile = (await Deno.makeTempFile()) + ".tar";