Added some improved error messages around using the correct contract …

…identifiers to help users debug.

src/cli/utils.ts

@@ -360,7 +360,6 @@ export const pathToIdentifier = (filePath: string) => filePath.substr(0, filePat
 export const build = async (contractPath: string) => {
 	// Get the base filename from path and log status
 	const basename = path.basename(contractPath, '.cpp');
-	console.log(basename);
 	// Compile contract at path
 	await compileContract(contractPath);
 	// Generate Typescript definitions for contract
@@ -394,9 +393,18 @@ export const compileContract = async (contractPath: string) => {
 	spinner.create(`Compiling contract`);
 
 	const basename = path.basename(contractPath, '.cpp');
+
+	if (!(await exists(contractPath))) {
+		spinner.fail(
+			`Couldn't locate contract at ${contractPath}. Are you sure used the correct contract identifier when trying to build the contract?`
+		);
+
+		throw new Error("Contract doesn't exist on disk.");
+	}
+
 	const outputPath = outputPathForContract(contractPath);
 
-	// Pull docker images
+	// Run the compile contract script inside our docker container.
 	await docker
 		.command(
 			// Arg 1 is filename, arg 2 is contract name.

src/contracts/contractDeployer.ts

@@ -1,9 +1,10 @@
 import * as path from 'path';
-import { readFile as readFileCallback } from 'fs';
+import { readFile as readFileCallback, exists as existsCallback } from 'fs';
 import { promisify } from 'util';
 import { Serialize } from 'eosjs';
 import * as ecc from 'eosjs-ecc';
 
+const exists = promisify(existsCallback);
 const readFile = promisify(readFileCallback);
 
 import { Contract } from './contract';
@@ -45,11 +46,25 @@ export class ContractDeployer {
 			'compiled_contracts',
 			`${contractIdentifier}.abi`
 		);
+
+		if (!(await exists(abiPath))) {
+			throw new Error(
+				`Couldn't find ABI at ${abiPath}. Are you sure you used the correct contract identifier?`
+			);
+		}
+
 		const wasmPath = path.join(
 			ConfigManager.outDir,
 			'compiled_contracts',
 			`${contractIdentifier}.wasm`
 		);
+
+		if (!(await exists(wasmPath))) {
+			throw new Error(
+				`Couldn't find WASM file at ${wasmPath}. Are you sure you used the correct contract identifier?`
+			);
+		}
+
 		// Read resources files for paths
 		let abi = JSON.parse(await readFile(abiPath, 'utf8'));
 		const wasm = await readFile(wasmPath);