5 files changed, 121 insertions, 4 deletions
diff --git a/packages/monorepo-scripts/src/prepublish_checks.ts b/packages/monorepo-scripts/src/prepublish_checks.ts
index 82eaf5cf9..021e57226 100644
--- a/packages/monorepo-scripts/src/prepublish_checks.ts
+++ b/packages/monorepo-scripts/src/prepublish_checks.ts
@@ -6,6 +6,8 @@ import semverSort = require('semver-sort');
 import { constants } from './constants';
 import { Package } from './types';
 import { changelogUtils } from './utils/changelog_utils';
+import { configs } from './utils/configs';
+import { dockerHubUtils } from './utils/docker_hub_utils';
 import { npmUtils } from './utils/npm_utils';
 import { utils } from './utils/utils';
 
@@ -17,6 +19,12 @@ async function prepublishChecksAsync(): Promise<void> {
     await checkChangelogFormatAsync(updatedPublicPackages);
     await checkGitTagsForNextVersionAndDeleteIfExistAsync(updatedPublicPackages);
     await checkPublishRequiredSetupAsync();
+    await checkDockerHubSetupAsync();
+}
+
+async function checkDockerHubSetupAsync(): Promise<void> {
+    await dockerHubUtils.checkUserAddedToOrganizationOrThrowAsync(configs.DOCKER_HUB_ORG);
+    await dockerHubUtils.loginUserToDockerCommandlineOrThrowAsync();
 }
 
 async function checkGitTagsForNextVersionAndDeleteIfExistAsync(updatedPublicPackages: Package[]): Promise<void> {
diff --git a/packages/monorepo-scripts/src/publish.ts b/packages/monorepo-scripts/src/publish.ts
index e0602a74f..105d87dcd 100644
--- a/packages/monorepo-scripts/src/publish.ts
+++ b/packages/monorepo-scripts/src/publish.ts
@@ -1,11 +1,12 @@
 #!/usr/bin/env node
 
+import { logUtils } from '@0x/utils';
 import * as promisify from 'es6-promisify';
 import * as fs from 'fs';
 import * as _ from 'lodash';
 import * as moment from 'moment';
 import opn = require('opn');
-import { exec as execAsync } from 'promisify-child-process';
+import { exec as execAsync, spawn as spawnAsync } from 'promisify-child-process';
 import * as prompt from 'prompt';
 import semver = require('semver');
 import semverSort = require('semver-sort');
@@ -79,12 +80,16 @@ async function confirmAsync(message: string): Promise<void> {
     });
     utils.log(`Calling 'lerna publish'...`);
     await lernaPublishAsync(packageToNextVersion);
-    if (!configs.IS_LOCAL_PUBLISH) {
+
+    const isDryRun = configs.IS_LOCAL_PUBLISH;
+    if (!isDryRun) {
+        // Publish docker images to DockerHub
+        await publishImagesToDockerHubAsync(allPackagesToPublish);
+
         const isStaging = false;
         const shouldUploadDocs = true;
         await generateAndUploadDocJsonsAsync(packagesWithDocs, isStaging, shouldUploadDocs);
     }
-    const isDryRun = configs.IS_LOCAL_PUBLISH;
     const releaseNotes = await publishReleaseNotesAsync(updatedPublicPackages, isDryRun);
     utils.log('Published release notes');
 
@@ -95,11 +100,45 @@ async function confirmAsync(message: string): Promise<void> {
             utils.log("Publish successful, but couldn't auto-alert discord (", e.message, '), Please alert manually.');
         }
     }
+    process.exit(0);
 })().catch(err => {
     utils.log(err);
     process.exit(1);
 });
 
+async function publishImagesToDockerHubAsync(allUpdatedPackages: Package[]): Promise<void> {
+    for (const pkg of allUpdatedPackages) {
+        const packageJSON = pkg.packageJson;
+        const shouldPublishDockerImage =
+            !_.isUndefined(packageJSON.config) &&
+            !_.isUndefined(packageJSON.config.postpublish) &&
+            !_.isUndefined(packageJSON.config.postpublish.dockerHubRepo);
+        if (!shouldPublishDockerImage) {
+            continue;
+        }
+        const dockerHubRepo = _.get(packageJSON, 'config.postpublish.dockerHubRepo');
+        const pkgName = pkg.packageJson.name;
+        const packageDirName = _.startsWith(pkgName, '@0x/') ? pkgName.split('/')[1] : pkgName;
+
+        // Build the Docker image
+        logUtils.log(`Building '${dockerHubRepo}' docker image...`);
+        await spawnAsync('docker', ['build', '-t', dockerHubRepo, '.'], {
+            cwd: `${constants.monorepoRootPath}/packages/${packageDirName}`,
+        });
+
+        // Tag the docker image with the latest version
+        const version = pkg.packageJson.version;
+        logUtils.log(`Tagging '${dockerHubRepo}' docker image with version ${version}...`);
+        await execAsync(`docker tag ${dockerHubRepo} ${configs.DOCKER_HUB_ORG}/${dockerHubRepo}:${version}`);
+        await execAsync(`docker tag ${dockerHubRepo} ${configs.DOCKER_HUB_ORG}/${dockerHubRepo}:latest`);
+
+        // Publish to DockerHub
+        logUtils.log(`Pushing '${dockerHubRepo}' docker image to DockerHub...`);
+        await execAsync(`docker push ${configs.DOCKER_HUB_ORG}/${dockerHubRepo}:${version}`);
+        await execAsync(`docker push ${configs.DOCKER_HUB_ORG}/${dockerHubRepo}:latest`);
+    }
+}
+
 function getPackagesWithDocs(allUpdatedPackages: Package[]): Package[] {
     const rootPackageJsonPath = `${constants.monorepoRootPath}/package.json`;
     const rootPackageJson = JSON.parse(fs.readFileSync(rootPackageJsonPath).toString());
diff --git a/packages/monorepo-scripts/src/types.ts b/packages/monorepo-scripts/src/types.ts
index 3c2ec5069..4af4fd257 100644
--- a/packages/monorepo-scripts/src/types.ts
+++ b/packages/monorepo-scripts/src/types.ts
@@ -41,7 +41,11 @@ export interface PackageJSON {
     main?: string;
     scripts?: { [command: string]: string };
     config?: {
-        additionalTsTypings?: string[];
+        postpublish?: {
+            assets?: string[];
+            docOmitExports?: string[];
+            dockerHubRepo?: string;
+        };
     };
 }
 
diff --git a/packages/monorepo-scripts/src/utils/configs.ts b/packages/monorepo-scripts/src/utils/configs.ts
index e579bdb7c..b6b6e2c5e 100644
--- a/packages/monorepo-scripts/src/utils/configs.ts
+++ b/packages/monorepo-scripts/src/utils/configs.ts
@@ -5,4 +5,5 @@ const REMOTE_NPM_REGISTRY_URL = 'https://registry.npmjs.org';
 export const configs = {
     IS_LOCAL_PUBLISH,
     NPM_REGISTRY_URL: IS_LOCAL_PUBLISH ? LOCAL_NPM_REGISTRY_URL : REMOTE_NPM_REGISTRY_URL,
+    DOCKER_HUB_ORG: '0xorg',
 };
diff --git a/packages/monorepo-scripts/src/utils/docker_hub_utils.ts b/packages/monorepo-scripts/src/utils/docker_hub_utils.ts
new file mode 100644
index 000000000..62215a579
--- /dev/null
+++ b/packages/monorepo-scripts/src/utils/docker_hub_utils.ts
@@ -0,0 +1,65 @@
+import { fetchAsync } from '@0x/utils';
+import { exec as execAsync } from 'promisify-child-process';
+
+import { utils } from './utils';
+
+const API_ENDPOINT = 'https://hub.docker.com/v2';
+const HTTP_OK_STATUS = 200;
+
+export const dockerHubUtils = {
+    async getTokenAsync(): Promise<string> {
+        const payload = {
+            username: process.env.DOCKER_USERNAME,
+            password: process.env.DOCKER_PASS,
+        };
+        const response = await fetchAsync(`${API_ENDPOINT}/users/login`, {
+            method: 'POST',
+            headers: {
+                Accept: 'application/json',
+                'Content-Type': 'application/json',
+            },
+            body: JSON.stringify(payload),
+        });
+        if (response.status !== HTTP_OK_STATUS) {
+            throw new Error(
+                `DockerHub user login failed (status code: ${
+                    response.status
+                }). Make sure you have environment variables 'DOCKER_USERNAME; and 'DOCKER_PASS' set`,
+            );
+        }
+        const respPayload = await response.json();
+        const token = respPayload.token;
+        return token;
+    },
+    async checkUserAddedToOrganizationOrThrowAsync(organization: string): Promise<void> {
+        utils.log('Checking that the user was added to the 0xorg DockerHub organization...');
+        const token = await dockerHubUtils.getTokenAsync();
+        const response = await fetchAsync(`${API_ENDPOINT}/repositories/${organization}/?page_size=10`, {
+            method: 'GET',
+            headers: {
+                Accept: 'application/json',
+                Authorization: `JWT ${token}`,
+            },
+        });
+        const respPayload = await response.json();
+        if (response.status !== HTTP_OK_STATUS || respPayload.count === 0) {
+            throw new Error(
+                `Failed to fetch org: ${organization}'s list of repos (status code: ${
+                    response.status
+                }). Make sure your account has been added to the '${organization}' org on DockerHub`,
+            );
+        }
+    },
+    async loginUserToDockerCommandlineOrThrowAsync(): Promise<void> {
+        try {
+            utils.log('Checking that the user is logged in to docker command...');
+            await execAsync(`echo "$DOCKER_PASS" | docker login -u $DOCKER_USERNAME --password-stdin`);
+        } catch (err) {
+            throw new Error(
+                `Failed to log you into the 'docker' commandline tool. Make sure you have the 'docker' commandline tool installed. Full error: ${
+                    err.message
+                }`,
+            );
+        }
+    },
+};