chore: enhance build script for precompiles output structure

Author: nowooj

contracts/package.json

@@ -1,7 +1,7 @@
 {
   "name": "cosmos-evm-contracts",
   "packageManager": "pnpm@9.15.0",
-  "version": "0.0.1",
+  "version": "0.0.2",
   "description": "A collection of smart contracts used in the development of the Cosmos EVM blockchain.",
   "devDependencies": {
     "@openzeppelin/contracts": "^5.4.0",
@@ -10,14 +10,7 @@
   "scripts": {
     "build:precompiles": "node scripts/build-precompiles.js",
     "compile": "hardhat compile",
-    "prepublishOnly": "pnpm run build:precompiles"
-  },
-  "files": [
-    "dist",
-    "README.md"
-  ],
-  "exports": {
-    "./*": "./dist/*"
+    "publish:dist": "pnpm run build:precompiles && cd dist && pnpm publish"
   },
   "repository": {
     "type": "git",

contracts/scripts/build-precompiles.js

@@ -17,7 +17,8 @@ const ROOT = join(__dirname, "..");
 const ARTIFACTS = join(ROOT, "artifacts", "solidity", "precompiles");
 const SOLIDITY_SOURCE = join(ROOT, "solidity");
 const DIST = join(ROOT, "dist");
-const DIST_ABI = join(DIST, "abi");
+const OUT_PRECOMPILES = join(DIST, "precompiles");
+const OUT_ABI = join(DIST, "abi");
 
 const EXCLUDED_DIRS = ["testdata", "testutil"];
 
@@ -66,7 +67,8 @@ function buildPrecompiles() {
     process.exit(1);
   }
 
-  ensureDir(DIST_ABI);
+  ensureDir(OUT_PRECOMPILES);
+  ensureDir(OUT_ABI);
 
   const copiedSol = new Set();
   let count = 0;
@@ -81,8 +83,8 @@ function buildPrecompiles() {
 
     const relFromSolidity = sourceName.replace(/^solidity\//, ""); // precompiles/bank/IBank.sol
     const solPath = join(SOLIDITY_SOURCE, relFromSolidity);
-    const abiOutPath = join(DIST_ABI, relFromSolidity.replace(".sol", ".json"));
-    const solOutPath = join(DIST, relFromSolidity);
+    const abiOutPath = join(OUT_ABI, relFromSolidity.replace(".sol", ".json"));
+    const solOutPath = join(OUT_PRECOMPILES, relFromSolidity.replace(/^precompiles\//, ""));
 
     ensureDir(dirname(abiOutPath));
     ensureDir(dirname(solOutPath));
@@ -102,14 +104,30 @@ function buildPrecompiles() {
     const relFromSolidity = join("precompiles", rel);
     if (copiedSol.has(relFromSolidity)) continue;
     const solPath = join(SOLIDITY_SOURCE, relFromSolidity);
-    const solOutPath = join(DIST, relFromSolidity);
+    const solOutPath = join(OUT_PRECOMPILES, rel);
     ensureDir(dirname(solOutPath));
     cpSync(solPath, solOutPath);
     count++;
     console.log("  ", relFromSolidity, "(no ABI)");
   }
 
-  console.log("\nDone. Built", count, "precompile file(s) to dist/ (OpenZeppelin style).");
+  // Copy README and create package.json for publishing from dist/
+  cpSync(join(ROOT, "README.md"), join(DIST, "README.md"));
+  const rootPkg = JSON.parse(readFileSync(join(ROOT, "package.json"), "utf8"));
+  const distPkg = {
+    name: rootPkg.name,
+    version: rootPkg.version,
+    description: rootPkg.description,
+    repository: rootPkg.repository,
+    author: rootPkg.author,
+    license: rootPkg.license,
+    bugs: rootPkg.bugs,
+    homepage: rootPkg.homepage,
+    files: ["precompiles", "abi", "README.md"],
+  };
+  writeFileSync(join(DIST, "package.json"), JSON.stringify(distPkg, null, 2), "utf8");
+
+  console.log("\nDone. Built", count, "precompile file(s) to dist/ (ready to publish from dist/).");
 }
 
 buildPrecompiles();