Add registry update functionality

README.md

@@ -20,6 +20,12 @@ This action requires the upload directory to be already available so you will ne
 
 Find out more about github token from [documentation](https://docs.github.com/en/free-pro-team@latest/actions/reference/authentication-in-a-workflow).
 
+### `registry-seed`
+
+You can provide a seed (keep it secret, keep it safe) and this action will set corresponding skynet registry entry value to the deployed skylink.
+
+Public link to the registry entry will be printed in the action log.
+
 ## Outputs
 
 ### `skylink`
@@ -42,7 +48,10 @@ with:
 ```yaml
 name: My CI Pipeline
 
-on: [pull_request]
+on:
+  pull_request:
+  push:
+    branches: [main]
 
 jobs:
   build:
@@ -66,4 +75,5 @@ jobs:
         with:
           upload-dir: public
           github-token: ${{ secrets.GITHUB_TOKEN }}
+          registry-seed: ${{ github.event_name == 'push' && github.ref == 'refs/heads/main' && secrets.REGISTRY_SEED || '' }}
 ```

action.yml

@@ -10,6 +10,11 @@ inputs:
   github-token:
     description: "Github token used for including the skylink url in pull request"
     required: true
+  registry-seed:
+    description: "Seed that generates registry private key (optional, only if you want to update the registry entry with skylink)"
+  registry-datakey:
+    description: "Registry datakey to use when updating the registry entry"
+    default: "skylink.txt"
 outputs:
   skylink:
     description: "Uploaded resource skylink"

index.js

@@ -1,7 +1,8 @@
 const core = require("@actions/core");
 const github = require("@actions/github");
-const { SkynetClient } = require("@nebulous/skynet");
-const { parseSkylink } = require("skynet-js");
+const { SkynetClient: NodeSkynetClient } = require("@nebulous/skynet");
+const { parseSkylink, keyPairFromSeed, SkynetClient } = require("skynet-js");
+const { HashDataKey } = require("skynet-js/dist/crypto");
 const base64 = require("base64-js");
 const base32Encode = require("base32-encode");
 
@@ -20,7 +21,7 @@ function encodeBase32(input) {
 (async () => {
   try {
     // upload to skynet
-    const skynetClient = new SkynetClient();
+    const skynetClient = new NodeSkynetClient();
     const skylink = await skynetClient.uploadDirectory(
       core.getInput("upload-dir")
     );
@@ -35,6 +36,37 @@ function encodeBase32(input) {
     core.setOutput("skylink-url", skylinkUrl);
     console.log(`Deployed to: ${skylinkUrl}`);
 
+    // if registry is properly configured, update the skylink in the entry
+    if (core.getInput("registry-seed") && core.getInput("registry-datakey")) {
+      try {
+        const skynetClient = new SkynetClient("https://siasky.net");
+        const dataKey = core.getInput("registry-datakey");
+        const { publicKey, privateKey } = keyPairFromSeed(
+          core.getInput("registry-seed")
+        );
+
+        const entry = await skynetClient.registry.getEntry(publicKey, dataKey);
+        const updatedEntry = {
+          datakey: dataKey,
+          revision: entry ? entry.entry.revision + 1 : 0,
+          data: skylink,
+        };
+        await skynetClient.registry.setEntry(privateKey, dataKey, updatedEntry);
+
+        const encodedPublicKey = encodeURIComponent(
+          `ed25519:${publicKey.toString("hex")}`
+        );
+        const encodedDataKey = encodeURIComponent(
+          Buffer.from(HashDataKey(dataKey)).toString("hex")
+        );
+        console.log(
+          `Registry entry updated: https://siasky.net/skynet/registry?publickey=${encodedPublicKey}&datakey=${encodedDataKey}`
+        );
+      } catch (error) {
+        console.log(`Failed to update registry entry ${error.message}`);
+      }
+    }
+
     // put a skylink in a pull request comment if available
     if (github.context.issue.number) {
       const gitHubToken = core.getInput("github-token");