Add whitelist upgrade hasher

Signed-off-by: Xavier Lau <[email protected]>

.github/workflows/release.yml

@@ -0,0 +1,51 @@
+name: Release
+on:
+  push:
+    tags:
+      - "v[0-9]+.[0-9]+.[0-9]+"
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    steps:
+      - name: Fetch latest code
+        uses: actions/checkout@v4
+      - name: Build
+        run: cd whitelist-upgrade-hasher && cargo b -r --locked
+      - name: Compress
+        run: |
+          mv whitelist-upgrade-hasher/target/release/wuh .
+          zstd --ultra -22 -o wuh.zst wuh
+      - name: Upload artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: wuh
+          path: wuh.zst
+          retention-days: 1
+
+  release:
+    name: Release
+    runs-on: ubuntu-latest
+    needs: [build]
+    steps:
+      - name: Download artifacts
+        uses: actions/download-artifact@v4
+      - name: Hash
+        run: |
+          mkdir -p artifacts
+          mv wuh* artifacts/
+          cd artifacts
+          sha256sum * | tee ../SHA256
+          md5sum * | tee ../MD5
+          mv ../SHA256 .
+          mv ../MD5 .
+      - name: Publish
+        uses: softprops/action-gh-release@v1
+        with:
+          discussion_category_name: Announcements
+          generate_release_notes: true
+          files: artifacts/*

.gitignore

@@ -5,5 +5,6 @@
 .idea
 .vscode
 
-# Cache
-build
+# Package manager
+## Cargo
+target

whitelist-upgrade-hasher/Cargo.toml

@@ -0,0 +1,9 @@
+[package]
+edition = "2021"
+name    = "wuh"
+version = "0.1.0"
+
+[dependencies]
+# crates.io
+array-bytes = { version = "6.2" }
+blake2-rfc  = { version = "0.2" }

whitelist-upgrade-hasher/src/main.rs

@@ -0,0 +1,35 @@
+// std
+use std::{env, error::Error, fs};
+// crates.io
+use blake2_rfc::blake2b;
+
+fn main() -> Result<(), Box<dyn Error>> {
+    let args = env::args().collect::<Vec<_>>();
+    let p = args.get(1).expect("missing WASM file path");
+    let whitelist_pi = args
+        .get(2)
+        .expect("missing whitelist pallet index")
+        .trim_start_matches("0x");
+    let parachain_system_pi = args
+        .get(3)
+        .expect("missing parachain system pallet index")
+        .trim_start_matches("0x");
+    let w = fs::read(p)?;
+    let h1 = blake2b::blake2b(32, &[], &w);
+    let h1 = h1.as_bytes();
+    let mut c = vec![
+        u8::from_str_radix(whitelist_pi, 16)?,
+        0x03,
+        u8::from_str_radix(parachain_system_pi, 16)?,
+        0x02,
+    ];
+
+    c.extend_from_slice(&h1);
+    c.push(0x01);
+
+    let h2 = blake2b::blake2b(32, &[], &c);
+
+    println!("{}", array_bytes::bytes2hex("0x", h2));
+
+    Ok(())
+}