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-rw-r--r--packages/sol-compiler/src/compiler.ts46
1 files changed, 46 insertions, 0 deletions
diff --git a/packages/sol-compiler/src/compiler.ts b/packages/sol-compiler/src/compiler.ts
index 45cbf527b..17a1ce563 100644
--- a/packages/sol-compiler/src/compiler.ts
+++ b/packages/sol-compiler/src/compiler.ts
@@ -6,13 +6,17 @@ import {
NPMResolver,
RelativeFSResolver,
Resolver,
+ SpyResolver,
URLResolver,
} from '@0x/sol-resolver';
import { logUtils } from '@0x/utils';
+import chalk from 'chalk';
+import * as chokidar from 'chokidar';
import { CompilerOptions, ContractArtifact, ContractVersionData, StandardOutput } from 'ethereum-types';
import * as fs from 'fs';
import * as _ from 'lodash';
import * as path from 'path';
+import * as pluralize from 'pluralize';
import * as semver from 'semver';
import solc = require('solc');
@@ -30,6 +34,7 @@ import {
} from './utils/compiler';
import { constants } from './utils/constants';
import { fsWrapper } from './utils/fs_wrapper';
+import { CompilationError } from './utils/types';
import { utils } from './utils/utils';
type TYPE_ALL_FILES_IDENTIFIER = '*';
@@ -129,6 +134,43 @@ export class Compiler {
const promisedOutputs = this._compileContractsAsync(this._getContractNamesToCompile(), false);
return promisedOutputs;
}
+ public async watchAsync(): Promise<void> {
+ console.clear(); // tslint:disable-line:no-console
+ logWithTime('Starting compilation in watch mode...');
+ const watcher = chokidar.watch('^$', { ignored: /(^|[\/\\])\../ });
+ const onFileChangedAsync = async () => {
+ watcher.unwatch('*'); // Stop watching
+ try {
+ await this.compileAsync();
+ logWithTime('Found 0 errors. Watching for file changes.');
+ } catch (err) {
+ if (err.typeName === 'CompilationError') {
+ logWithTime(`Found ${err.errorsCount} ${pluralize('error', err.errorsCount)}. Watching for file changes.`);
+ } else {
+ logWithTime('Found errors. Watching for file changes.');
+ }
+ }
+
+ const pathsToWatch = this._getPathsToWatch();
+ watcher.add(pathsToWatch);
+ };
+ await onFileChangedAsync();
+ watcher.on('change', (changedFilePath: string) => {
+ console.clear(); // tslint:disable-line:no-console
+ logWithTime('File change detected. Starting incremental compilation...');
+ onFileChangedAsync();
+ });
+ }
+ private _getPathsToWatch(): string[] {
+ const contractNames = this._getContractNamesToCompile();
+ const spyResolver = new SpyResolver(this._resolver);
+ for (const contractName of contractNames) {
+ const contractSource = spyResolver.resolve(contractName);
+ getSourceTreeHash(spyResolver, contractSource.path);
+ }
+ const pathsToWatch = _.uniq(spyResolver.resolvedContractSources.map(cs => cs.absolutePath));
+ return pathsToWatch;
+ }
private _getContractNamesToCompile(): string[] {
let contractNamesToCompile;
if (this._specifiedContracts === ALL_CONTRACTS_IDENTIFIER) {
@@ -298,3 +340,7 @@ export class Compiler {
logUtils.warn(`${contractName} artifact saved!`);
}
}
+
+function logWithTime(arg: string): void {
+ logUtils.log(`[${chalk.gray(new Date().toLocaleTimeString())}] ${arg}`);
+}