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metamask-extension/development/build/scripts.js
Mark Stacey 48c02ef641
Add validation to production build script (#15468)
Validation has been added to the build script when the "prod" target is
selected. We now ensure that all expected environment variables are
set, and that no extra environment variables are present (which might
indicate that the wrong configuration file is being used).

The `prod` target uses a new `.metamaskprodrc` configuration file. Each
required variable can be specified either via environment variable or
via this config file. CI will continue set these via environment
variable, but for local manual builds we can use the config file to
simplify the build process and ensure consistency.

A new "dist" target has been added to preserve the ability to build a
"production-like" build without this validation.

The config validation is invoked early in the script, in the CLI
argument parsing step, so that it would fail more quickly. Otherwise
we'd have to wait a few minutes longer for the validation to run.
This required some refactoring, moving functions to the utility module
and moving the config to a dedicated module.

Additionally, support has been added for all environment variables to
be set via the config file. Previously the values `PUBNUB_PUB_KEY`,
`PUBNUB_SUB_KEY`, `SENTRY_DSN`, and `SWAPS_USE_DEV_APIS` could only be
set via environment variable. Now, all of these variables can be set
either way.

Closes #15003
2022-08-19 15:46:18 -02:30

1077 lines
34 KiB
JavaScript

const { callbackify } = require('util');
const path = require('path');
const { writeFileSync, readFileSync } = require('fs');
const EventEmitter = require('events');
const gulp = require('gulp');
const watch = require('gulp-watch');
const Vinyl = require('vinyl');
const source = require('vinyl-source-stream');
const buffer = require('vinyl-buffer');
const log = require('fancy-log');
const browserify = require('browserify');
const watchify = require('watchify');
const babelify = require('babelify');
const brfs = require('brfs');
const envify = require('loose-envify/custom');
const sourcemaps = require('gulp-sourcemaps');
const applySourceMap = require('vinyl-sourcemaps-apply');
const pify = require('pify');
const through = require('through2');
const endOfStream = pify(require('end-of-stream'));
const labeledStreamSplicer = require('labeled-stream-splicer').obj;
const wrapInStream = require('pumpify').obj;
const Sqrl = require('squirrelly');
const lavapack = require('@lavamoat/lavapack');
const lavamoatBrowserify = require('lavamoat-browserify');
const terser = require('terser');
const bifyModuleGroups = require('bify-module-groups');
const { streamFlatMap } = require('../stream-flat-map');
const { BuildType } = require('../lib/build-type');
const { BUILD_TARGETS, ENVIRONMENT } = require('./constants');
const { getConfig, getProductionConfig } = require('./config');
const {
isDevBuild,
isTestBuild,
getEnvironment,
logError,
} = require('./utils');
const {
createTask,
composeParallel,
composeSeries,
runInChildProcess,
} = require('./task');
const {
createRemoveFencedCodeTransform,
} = require('./transforms/remove-fenced-code');
/**
* Get the appropriate Infura project ID.
*
* @param {object} options - The Infura project ID options.
* @param {BuildType} options.buildType - The current build type.
* @param {object} options.config - The environment variable configuration.
* @param {ENVIRONMENT[keyof ENVIRONMENT]} options.environment - The build environment.
* @param {boolean} options.testing - Whether this is a test build or not.
* @returns {string} The Infura project ID.
*/
function getInfuraProjectId({ buildType, config, environment, testing }) {
if (testing) {
return '00000000000000000000000000000000';
} else if (environment !== ENVIRONMENT.PRODUCTION) {
// Skip validation because this is unset on PRs from forks.
return config.INFURA_PROJECT_ID;
} else if (buildType === BuildType.main) {
return config.INFURA_PROD_PROJECT_ID;
} else if (buildType === BuildType.beta) {
return config.INFURA_BETA_PROJECT_ID;
} else if (buildType === BuildType.flask) {
return config.INFURA_FLASK_PROJECT_ID;
}
throw new Error(`Invalid build type: '${buildType}'`);
}
/**
* Get the appropriate Segment write key.
*
* @param {object} options - The Segment write key options.
* @param {BuildType} options.buildType - The current build type.
* @param {object} options.config - The environment variable configuration.
* @param {keyof ENVIRONMENT} options.environment - The current build environment.
* @returns {string} The Segment write key.
*/
function getSegmentWriteKey({ buildType, config, environment }) {
if (environment !== ENVIRONMENT.PRODUCTION) {
// Skip validation because this is unset on PRs from forks, and isn't necessary for development builds.
return config.SEGMENT_WRITE_KEY;
} else if (buildType === BuildType.main) {
return config.SEGMENT_PROD_WRITE_KEY;
} else if (buildType === BuildType.beta) {
return config.SEGMENT_BETA_WRITE_KEY;
} else if (buildType === BuildType.flask) {
return config.SEGMENT_FLASK_WRITE_KEY;
}
throw new Error(`Invalid build type: '${buildType}'`);
}
/**
* Get the URL for the phishing warning page, if it has been set.
*
* @param {object} options - The phishing warning page options.
* @param {object} options.config - The environment variable configuration.
* @param {boolean} options.testing - Whether this is a test build or not.
* @returns {string} The URL for the phishing warning page, or `undefined` if no URL is set.
*/
function getPhishingWarningPageUrl({ config, testing }) {
let phishingWarningPageUrl = config.PHISHING_WARNING_PAGE_URL;
if (!phishingWarningPageUrl) {
phishingWarningPageUrl = testing
? 'http://localhost:9999/'
: 'https://metamask.github.io/phishing-warning/v1.1.0/';
}
// We add a hash/fragment to the URL dynamically, so we need to ensure it
// has a valid pathname to append a hash to.
const normalizedUrl = phishingWarningPageUrl.endsWith('/')
? phishingWarningPageUrl
: `${phishingWarningPageUrl}/`;
let phishingWarningPageUrlObject;
try {
// eslint-disable-next-line no-new
phishingWarningPageUrlObject = new URL(normalizedUrl);
} catch (error) {
throw new Error(
`Invalid phishing warning page URL: '${normalizedUrl}'`,
error,
);
}
if (phishingWarningPageUrlObject.hash) {
// The URL fragment must be set dynamically
throw new Error(
`URL fragment not allowed in phishing warning page URL: '${normalizedUrl}'`,
);
}
return normalizedUrl;
}
const noopWriteStream = through.obj((_file, _fileEncoding, callback) =>
callback(),
);
module.exports = createScriptTasks;
/**
* Create tasks for building JavaScript bundles and templates. One
* task is returned for each build target. These build target tasks are
* each composed of smaller tasks.
*
* @param {object} options - Build options.
* @param {boolean} options.applyLavaMoat - Whether the build should use
* LavaMoat at runtime or not.
* @param {string[]} options.browserPlatforms - A list of browser platforms to
* build bundles for.
* @param {BuildType} options.buildType - The current build type (e.g. "main",
* "flask", etc.).
* @param {string[] | null} options.ignoredFiles - A list of files to exclude
* from the current build.
* @param {boolean} options.isLavaMoat - Whether this build script is being run
* using LavaMoat or not.
* @param {object} options.livereload - The "gulp-livereload" server instance.
* @param {boolean} options.policyOnly - Whether to stop the build after
* generating the LavaMoat policy, skipping any writes to disk other than the
* LavaMoat policy itself.
* @param {boolean} options.shouldLintFenceFiles - Whether files with code
* fences should be linted after fences have been removed.
* @param {string} options.version - The current version of the extension.
* @returns {object} A set of tasks, one for each build target.
*/
function createScriptTasks({
applyLavaMoat,
browserPlatforms,
buildType,
ignoredFiles,
isLavaMoat,
livereload,
policyOnly,
shouldLintFenceFiles,
version,
}) {
// high level tasks
return {
// dev tasks (live reload)
dev: createTasksForScriptBundles({
buildTarget: BUILD_TARGETS.DEV,
taskPrefix: 'scripts:core:dev',
}),
// production-like distributable build
dist: createTasksForScriptBundles({
buildTarget: BUILD_TARGETS.DIST,
taskPrefix: 'scripts:core:dist',
}),
// production
prod: createTasksForScriptBundles({
buildTarget: BUILD_TARGETS.PROD,
taskPrefix: 'scripts:core:prod',
}),
// built for CI tests
test: createTasksForScriptBundles({
buildTarget: BUILD_TARGETS.TEST,
taskPrefix: 'scripts:core:test',
}),
// built for CI test debugging
testDev: createTasksForScriptBundles({
buildTarget: BUILD_TARGETS.TEST_DEV,
taskPrefix: 'scripts:core:test-live',
}),
};
/**
* Define tasks for building the JavaScript modules used by the extension.
* This function returns a single task that builds JavaScript modules in
* parallel for a single type of build (e.g. dev, testing, production).
*
* @param {object} options - The build options.
* @param {BUILD_TARGETS} options.buildTarget - The build target that these
* JavaScript modules are intended for.
* @param {string} options.taskPrefix - The prefix to use for the name of
* each defined task.
*/
function createTasksForScriptBundles({ buildTarget, taskPrefix }) {
const standardEntryPoints = ['background', 'ui', 'content-script'];
const standardSubtask = createTask(
`${taskPrefix}:standardEntryPoints`,
createFactoredBuild({
applyLavaMoat,
browserPlatforms,
buildTarget,
buildType,
entryFiles: standardEntryPoints.map((label) => {
if (label === 'content-script') {
return './app/vendor/trezor/content-script.js';
}
return `./app/scripts/${label}.js`;
}),
ignoredFiles,
policyOnly,
shouldLintFenceFiles,
version,
}),
);
// inpage must be built before contentscript
// because inpage bundle result is included inside contentscript
const contentscriptSubtask = createTask(
`${taskPrefix}:contentscript`,
createContentscriptBundle({ buildTarget }),
);
// this can run whenever
const disableConsoleSubtask = createTask(
`${taskPrefix}:disable-console`,
createDisableConsoleBundle({ buildTarget }),
);
// this can run whenever
const installSentrySubtask = createTask(
`${taskPrefix}:sentry`,
createSentryBundle({ buildTarget }),
);
// task for initiating browser livereload
const initiateLiveReload = async () => {
if (isDevBuild(buildTarget)) {
// trigger live reload when the bundles are updated
// this is not ideal, but overcomes the limitations:
// - run from the main process (not child process tasks)
// - after the first build has completed (thus the timeout)
// - build tasks never "complete" when run with livereload + child process
setTimeout(() => {
watch('./dist/*/*.js', (event) => {
livereload.changed(event.path);
});
}, 75e3);
}
};
// make each bundle run in a separate process
const allSubtasks = [
standardSubtask,
contentscriptSubtask,
disableConsoleSubtask,
installSentrySubtask,
].map((subtask) =>
runInChildProcess(subtask, {
applyLavaMoat,
buildType,
isLavaMoat,
policyOnly,
shouldLintFenceFiles,
}),
);
// make a parent task that runs each task in a child thread
return composeParallel(initiateLiveReload, ...allSubtasks);
}
/**
* Create a bundle for the "disable-console" module.
*
* @param {object} options - The build options.
* @param {BUILD_TARGETS} options.buildTarget - The current build target.
* @returns {Function} A function that creates the bundle.
*/
function createDisableConsoleBundle({ buildTarget }) {
const label = 'disable-console';
return createNormalBundle({
browserPlatforms,
buildTarget,
buildType,
destFilepath: `${label}.js`,
entryFilepath: `./app/scripts/${label}.js`,
ignoredFiles,
label,
policyOnly,
shouldLintFenceFiles,
version,
});
}
/**
* Create a bundle for the "sentry-install" module.
*
* @param {object} options - The build options.
* @param {BUILD_TARGETS} options.buildTarget - The current build target.
* @returns {Function} A function that creates the bundle.
*/
function createSentryBundle({ buildTarget }) {
const label = 'sentry-install';
return createNormalBundle({
browserPlatforms,
buildTarget,
buildType,
destFilepath: `${label}.js`,
entryFilepath: `./app/scripts/${label}.js`,
ignoredFiles,
label,
policyOnly,
shouldLintFenceFiles,
version,
});
}
/**
* Create bundles for the "contentscript" and "inpage" modules. The inpage
* module is created first because it gets embedded in the contentscript
* module.
*
* @param {object} options - The build options.
* @param {BUILD_TARGETS} options.buildTarget - The current build target.
* @returns {Function} A function that creates the bundles.
*/
function createContentscriptBundle({ buildTarget }) {
const inpage = 'inpage';
const contentscript = 'contentscript';
return composeSeries(
createNormalBundle({
buildTarget,
buildType,
browserPlatforms,
destFilepath: `${inpage}.js`,
entryFilepath: `./app/scripts/${inpage}.js`,
label: inpage,
ignoredFiles,
policyOnly,
shouldLintFenceFiles,
version,
}),
createNormalBundle({
buildTarget,
buildType,
browserPlatforms,
destFilepath: `${contentscript}.js`,
entryFilepath: `./app/scripts/${contentscript}.js`,
label: contentscript,
ignoredFiles,
policyOnly,
shouldLintFenceFiles,
version,
}),
);
}
}
/**
* Create the bundle for the app initialization module used in manifest v3
* builds.
*
* This must be called after the "background" bundles have been created, so
* that the list of all background bundles can be injected into this bundle.
*
* @param {object} options - Build options.
* @param {boolean} options.applyLavaMoat - Whether the build should use
* LavaMoat at runtime or not.
* @param {string[]} options.browserPlatforms - A list of browser platforms to
* build bundles for.
* @param {BUILD_TARGETS} options.buildTarget - The current build target.
* @param {BuildType} options.buildType - The current build type (e.g. "main",
* "flask", etc.).
* @param {string[] | null} options.ignoredFiles - A list of files to exclude
* from the current build.
* @param {string[]} options.jsBundles - A list of JavaScript bundles to be
* injected into this bundle.
* @param {boolean} options.policyOnly - Whether to stop the build after
* generating the LavaMoat policy, skipping any writes to disk other than the
* LavaMoat policy itself.
* @param {boolean} options.shouldLintFenceFiles - Whether files with code
* fences should be linted after fences have been removed.
* @param {string} options.version - The current version of the extension.
* @returns {Function} A function that creates the set of bundles.
*/
async function createManifestV3AppInitializationBundle({
applyLavaMoat,
browserPlatforms,
buildTarget,
buildType,
ignoredFiles,
jsBundles,
policyOnly,
shouldLintFenceFiles,
version,
}) {
const label = 'app-init';
// TODO: remove this filter for firefox once MV3 is supported in it
const mv3BrowserPlatforms = browserPlatforms.filter(
(platform) => platform !== 'firefox',
);
for (const filename of jsBundles) {
if (filename.includes(',')) {
throw new Error(
`Invalid filename "${filename}", not allowed to contain comma.`,
);
}
}
const extraEnvironmentVariables = {
APPLY_LAVAMOAT: applyLavaMoat,
FILE_NAMES: jsBundles.join(','),
};
await createNormalBundle({
browserPlatforms: mv3BrowserPlatforms,
buildTarget,
buildType,
destFilepath: 'app-init.js',
entryFilepath: './app/scripts/app-init.js',
extraEnvironmentVariables,
ignoredFiles,
label,
policyOnly,
shouldLintFenceFiles,
version,
})();
// Code below is used to set statsMode to true when testing in MV3
// This is used to capture module initialisation stats using lavamoat.
if (isTestBuild(buildTarget)) {
const content = readFileSync('./dist/chrome/runtime-lavamoat.js', 'utf8');
const fileOutput = content.replace('statsMode = false', 'statsMode = true');
writeFileSync('./dist/chrome/runtime-lavamoat.js', fileOutput);
}
console.log(`Bundle end: service worker app-init.js`);
}
/**
* Return a function that creates a set of factored bundles.
*
* For each entry point, a series of one or more bundles is created. These are
* split up roughly by size, to ensure no single bundle exceeds the maximum
* JavaScript file size imposed by Firefox.
*
* Modules that are common between all entry points are bundled separately, as
* a set of one or more "common" bundles.
*
* @param {object} options - Build options.
* @param {boolean} options.applyLavaMoat - Whether the build should use
* LavaMoat at runtime or not.
* @param {string[]} options.browserPlatforms - A list of browser platforms to
* build bundles for.
* @param {BUILD_TARGETS} options.buildTarget - The current build target.
* @param {BuildType} options.buildType - The current build type (e.g. "main",
* "flask", etc.).
* @param {string[]} options.entryFiles - A list of entry point file paths,
* relative to the repository root directory.
* @param {string[] | null} options.ignoredFiles - A list of files to exclude
* from the current build.
* @param {boolean} options.policyOnly - Whether to stop the build after
* generating the LavaMoat policy, skipping any writes to disk other than the
* LavaMoat policy itself.
* @param {boolean} options.shouldLintFenceFiles - Whether files with code
* fences should be linted after fences have been removed.
* @param {string} options.version - The current version of the extension.
* @returns {Function} A function that creates the set of bundles.
*/
function createFactoredBuild({
applyLavaMoat,
browserPlatforms,
buildTarget,
buildType,
entryFiles,
ignoredFiles,
policyOnly,
shouldLintFenceFiles,
version,
}) {
return async function () {
// create bundler setup and apply defaults
const buildConfiguration = createBuildConfiguration();
buildConfiguration.label = 'primary';
const { bundlerOpts, events } = buildConfiguration;
// devMode options
const reloadOnChange = isDevBuild(buildTarget);
const minify = !isDevBuild(buildTarget);
const envVars = await getEnvironmentVariables({
buildTarget,
buildType,
version,
});
setupBundlerDefaults(buildConfiguration, {
buildTarget,
buildType,
envVars,
ignoredFiles,
policyOnly,
minify,
reloadOnChange,
shouldLintFenceFiles,
});
// set bundle entries
bundlerOpts.entries = [...entryFiles];
// setup lavamoat
// lavamoat will add lavapack but it will be removed by bify-module-groups
// we will re-add it later by installing a lavapack runtime
const lavamoatOpts = {
policy: path.resolve(
__dirname,
`../../lavamoat/browserify/${buildType}/policy.json`,
),
policyName: buildType,
policyOverride: path.resolve(
__dirname,
`../../lavamoat/browserify/policy-override.json`,
),
writeAutoPolicy: process.env.WRITE_AUTO_POLICY,
};
Object.assign(bundlerOpts, lavamoatBrowserify.args);
bundlerOpts.plugin.push([lavamoatBrowserify, lavamoatOpts]);
// setup bundle factoring with bify-module-groups plugin
// note: this will remove lavapack, but its ok bc we manually readd it later
Object.assign(bundlerOpts, bifyModuleGroups.plugin.args);
bundlerOpts.plugin = [...bundlerOpts.plugin, [bifyModuleGroups.plugin]];
// instrument pipeline
let sizeGroupMap;
events.on('configurePipeline', ({ pipeline }) => {
// to be populated by the group-by-size transform
sizeGroupMap = new Map();
pipeline.get('groups').unshift(
// factor modules
bifyModuleGroups.groupByFactor({
entryFileToLabel(filepath) {
return path.parse(filepath).name;
},
}),
// cap files at 2 mb
bifyModuleGroups.groupBySize({
sizeLimit: 2e6,
groupingMap: sizeGroupMap,
}),
);
// converts each module group into a single vinyl file containing its bundle
const moduleGroupPackerStream = streamFlatMap((moduleGroup) => {
const filename = `${moduleGroup.label}.js`;
const childStream = wrapInStream(
moduleGroup.stream,
// we manually readd lavapack here bc bify-module-groups removes it
lavapack({ raw: true, hasExports: true, includePrelude: false }),
source(filename),
);
return childStream;
});
pipeline.get('vinyl').unshift(moduleGroupPackerStream, buffer());
// add lavamoat policy loader file to packer output
moduleGroupPackerStream.push(
new Vinyl({
path: 'policy-load.js',
contents: lavapack.makePolicyLoaderStream(lavamoatOpts),
}),
);
// setup bundle destination
browserPlatforms.forEach((platform) => {
const dest = `./dist/${platform}/`;
const destination = policyOnly ? noopWriteStream : gulp.dest(dest);
pipeline.get('dest').push(destination);
});
});
// wait for bundle completion for postprocessing
events.on('bundleDone', async () => {
// Skip HTML generation if nothing is to be written to disk
if (policyOnly) {
return;
}
const commonSet = sizeGroupMap.get('common');
// create entry points for each file
for (const [groupLabel, groupSet] of sizeGroupMap.entries()) {
// skip "common" group, they are added to all other groups
if (groupSet === commonSet) {
continue;
}
switch (groupLabel) {
case 'ui': {
renderHtmlFile({
htmlName: 'popup',
groupSet,
commonSet,
browserPlatforms,
applyLavaMoat,
});
renderHtmlFile({
htmlName: 'notification',
groupSet,
commonSet,
browserPlatforms,
applyLavaMoat,
});
renderHtmlFile({
htmlName: 'home',
groupSet,
commonSet,
browserPlatforms,
applyLavaMoat,
});
break;
}
case 'background': {
renderHtmlFile({
htmlName: 'background',
groupSet,
commonSet,
browserPlatforms,
applyLavaMoat,
});
if (process.env.ENABLE_MV3) {
const jsBundles = [
...commonSet.values(),
...groupSet.values(),
].map((label) => `./${label}.js`);
await createManifestV3AppInitializationBundle({
applyLavaMoat,
browserPlatforms,
buildTarget,
buildType,
ignoredFiles,
jsBundles,
policyOnly,
shouldLintFenceFiles,
version,
});
}
break;
}
case 'content-script': {
renderHtmlFile({
htmlName: 'trezor-usb-permissions',
groupSet,
commonSet,
browserPlatforms,
applyLavaMoat: false,
});
break;
}
default: {
throw new Error(
`build/scripts - unknown groupLabel "${groupLabel}"`,
);
}
}
}
});
await createBundle(buildConfiguration, { reloadOnChange });
};
}
/**
* Return a function that creates a single JavaScript bundle.
*
* @param {object} options - Build options.
* @param {string[]} options.browserPlatforms - A list of browser platforms to
* build the bundle for.
* @param {BUILD_TARGETS} options.buildTarget - The current build target.
* @param {BuildType} options.buildType - The current build type (e.g. "main",
* "flask", etc.).
* @param {string} options.destFilepath - The file path the bundle should be
* written to.
* @param {string[]} options.entryFilepath - The entry point file path,
* relative to the repository root directory.
* @param {Record<string, unknown>} options.extraEnvironmentVariables - Extra
* environment variables to inject just into this bundle.
* @param {string[] | null} options.ignoredFiles - A list of files to exclude
* from the current build.
* @param {string} options.label - A label used to describe this bundle in any
* diagnostic messages.
* @param {boolean} options.policyOnly - Whether to stop the build after
* generating the LavaMoat policy, skipping any writes to disk other than the
* LavaMoat policy itself.
* @param {boolean} options.shouldLintFenceFiles - Whether files with code
* fences should be linted after fences have been removed.
* @param {string} options.version - The current version of the extension.
* @returns {Function} A function that creates the bundle.
*/
function createNormalBundle({
browserPlatforms,
buildTarget,
buildType,
destFilepath,
entryFilepath,
extraEnvironmentVariables,
ignoredFiles,
label,
policyOnly,
shouldLintFenceFiles,
version,
}) {
return async function () {
// create bundler setup and apply defaults
const buildConfiguration = createBuildConfiguration();
buildConfiguration.label = label;
const { bundlerOpts, events } = buildConfiguration;
// devMode options
const devMode = isDevBuild(buildTarget);
const reloadOnChange = Boolean(devMode);
const minify = Boolean(devMode) === false;
const envVars = {
...(await getEnvironmentVariables({
buildTarget,
buildType,
version,
})),
...extraEnvironmentVariables,
};
setupBundlerDefaults(buildConfiguration, {
buildType,
envVars,
ignoredFiles,
policyOnly,
minify,
reloadOnChange,
shouldLintFenceFiles,
});
// set bundle entries
bundlerOpts.entries = [entryFilepath];
// instrument pipeline
events.on('configurePipeline', ({ pipeline }) => {
// convert bundle stream to gulp vinyl stream
// and ensure file contents are buffered
pipeline.get('vinyl').push(source(destFilepath));
pipeline.get('vinyl').push(buffer());
// setup bundle destination
browserPlatforms.forEach((platform) => {
const dest = `./dist/${platform}/`;
const destination = policyOnly ? noopWriteStream : gulp.dest(dest);
pipeline.get('dest').push(destination);
});
});
await createBundle(buildConfiguration, { reloadOnChange });
};
}
function createBuildConfiguration() {
const label = '(unnamed bundle)';
const events = new EventEmitter();
const bundlerOpts = {
entries: [],
transform: [],
plugin: [],
require: [],
// non-standard bify options
manualExternal: [],
manualIgnore: [],
};
return { bundlerOpts, events, label };
}
function setupBundlerDefaults(
buildConfiguration,
{
buildTarget,
buildType,
envVars,
ignoredFiles,
policyOnly,
minify,
reloadOnChange,
shouldLintFenceFiles,
},
) {
const { bundlerOpts } = buildConfiguration;
const extensions = ['.js', '.ts', '.tsx'];
Object.assign(bundlerOpts, {
// Source transforms
transform: [
// // Remove code that should be excluded from builds of the current type
createRemoveFencedCodeTransform(buildType, shouldLintFenceFiles),
// Transpile top-level code
[
babelify,
// Run TypeScript files through Babel
{ extensions },
],
// Inline `fs.readFileSync` files
brfs,
],
// Look for TypeScript files when walking the dependency tree
extensions,
// Use entryFilepath for moduleIds, easier to determine origin file
fullPaths: isDevBuild(buildTarget) || isTestBuild(buildTarget),
// For sourcemaps
debug: true,
});
// Ensure react-devtools is only included in dev builds
if (buildTarget !== BUILD_TARGETS.DEV) {
bundlerOpts.manualIgnore.push('react-devtools');
bundlerOpts.manualIgnore.push('remote-redux-devtools');
}
// Inject environment variables via node-style `process.env`
if (envVars) {
bundlerOpts.transform.push([envify(envVars), { global: true }]);
}
// Ensure that any files that should be ignored are excluded from the build
if (ignoredFiles) {
bundlerOpts.manualExclude = ignoredFiles;
}
// Setup reload on change
if (reloadOnChange) {
setupReloadOnChange(buildConfiguration);
}
if (!policyOnly) {
if (minify) {
setupMinification(buildConfiguration);
}
// Setup source maps
setupSourcemaps(buildConfiguration, { buildTarget });
}
}
function setupReloadOnChange({ bundlerOpts, events }) {
// Add plugin to options
Object.assign(bundlerOpts, {
plugin: [...bundlerOpts.plugin, watchify],
// Required by watchify
cache: {},
packageCache: {},
});
// Instrument pipeline
events.on('configurePipeline', ({ bundleStream }) => {
// Handle build error to avoid breaking build process
// (eg on syntax error)
bundleStream.on('error', (err) => {
gracefulError(err);
});
});
}
function setupMinification(buildConfiguration) {
const minifyOpts = {
mangle: {
reserved: ['MetamaskInpageProvider'],
},
};
const { events } = buildConfiguration;
events.on('configurePipeline', ({ pipeline }) => {
pipeline.get('minify').push(
// this is the "gulp-terser-js" wrapper around the latest version of terser
through.obj(
callbackify(async (file, _enc) => {
const input = {
[file.sourceMap.file]: file.contents.toString(),
};
const opts = {
sourceMap: {
filename: file.sourceMap.file,
content: file.sourceMap,
},
...minifyOpts,
};
const res = await terser.minify(input, opts);
file.contents = Buffer.from(res.code);
applySourceMap(file, res.map);
return file;
}),
),
);
});
}
function setupSourcemaps(buildConfiguration, { buildTarget }) {
const { events } = buildConfiguration;
events.on('configurePipeline', ({ pipeline }) => {
pipeline.get('sourcemaps:init').push(sourcemaps.init({ loadMaps: true }));
pipeline
.get('sourcemaps:write')
// Use inline source maps for development due to Chrome DevTools bug
// https://bugs.chromium.org/p/chromium/issues/detail?id=931675
.push(
isDevBuild(buildTarget)
? sourcemaps.write()
: sourcemaps.write('../sourcemaps', { addComment: false }),
);
});
}
async function createBundle(buildConfiguration, { reloadOnChange }) {
const { label, bundlerOpts, events } = buildConfiguration;
const bundler = browserify(bundlerOpts);
// manually apply non-standard options
bundler.external(bundlerOpts.manualExternal);
bundler.ignore(bundlerOpts.manualIgnore);
if (Array.isArray(bundlerOpts.manualExclude)) {
bundler.exclude(bundlerOpts.manualExclude);
}
// output build logs to terminal
bundler.on('log', log);
// forward update event (used by watchify)
bundler.on('update', () => performBundle());
console.log(`Bundle start: "${label}"`);
await performBundle();
console.log(`Bundle end: "${label}"`);
async function performBundle() {
// this pipeline is created for every bundle
// the labels are all the steps you can hook into
const pipeline = labeledStreamSplicer([
'groups',
[],
'vinyl',
[],
'sourcemaps:init',
[],
'minify',
[],
'sourcemaps:write',
[],
'dest',
[],
]);
const bundleStream = bundler.bundle();
if (!reloadOnChange) {
bundleStream.on('error', (error) => {
console.error('Bundling failed! See details below.');
logError(error);
process.exit(1);
});
}
// trigger build pipeline instrumentations
events.emit('configurePipeline', { pipeline, bundleStream });
// start bundle, send into pipeline
bundleStream.pipe(pipeline);
// nothing will consume pipeline, so let it flow
pipeline.resume();
await endOfStream(pipeline);
// call the completion event to handle any post-processing
events.emit('bundleDone');
}
}
/**
* Get environment variables to inject in the current build.
*
* @param {object} options - Build options.
* @param {BUILD_TARGETS} options.buildTarget - The current build target.
* @param {BuildType} options.buildType - The current build type (e.g. "main",
* "flask", etc.).
* @param {string} options.version - The current version of the extension.
* @returns {object} A map of environment variables to inject.
*/
async function getEnvironmentVariables({ buildTarget, buildType, version }) {
const environment = getEnvironment({ buildTarget });
const config =
environment === ENVIRONMENT.PRODUCTION
? await getProductionConfig(buildType)
: await getConfig();
const devMode = isDevBuild(buildTarget);
const testing = isTestBuild(buildTarget);
return {
COLLECTIBLES_V1: config.COLLECTIBLES_V1 === '1',
CONF: devMode ? config : {},
IN_TEST: testing,
INFURA_PROJECT_ID: getInfuraProjectId({
buildType,
config,
environment,
testing,
}),
METAMASK_DEBUG: devMode,
METAMASK_ENVIRONMENT: environment,
METAMASK_VERSION: version,
METAMASK_BUILD_TYPE: buildType,
NODE_ENV: devMode ? ENVIRONMENT.DEVELOPMENT : ENVIRONMENT.PRODUCTION,
ONBOARDING_V2: config.ONBOARDING_V2 === '1',
PHISHING_WARNING_PAGE_URL: getPhishingWarningPageUrl({ config, testing }),
PUBNUB_PUB_KEY: config.PUBNUB_PUB_KEY || '',
PUBNUB_SUB_KEY: config.PUBNUB_SUB_KEY || '',
SEGMENT_HOST: config.SEGMENT_HOST,
SEGMENT_WRITE_KEY: getSegmentWriteKey({ buildType, config, environment }),
SENTRY_DSN: config.SENTRY_DSN,
SENTRY_DSN_DEV: config.SENTRY_DSN_DEV,
SIWE_V1: config.SIWE_V1 === '1',
SWAPS_USE_DEV_APIS: config.SWAPS_USE_DEV_APIS === '1',
};
}
function renderHtmlFile({
htmlName,
groupSet,
commonSet,
browserPlatforms,
applyLavaMoat,
}) {
if (applyLavaMoat === undefined) {
throw new Error(
'build/scripts/renderHtmlFile - must specify "applyLavaMoat" option',
);
}
const htmlFilePath = `./app/${htmlName}.html`;
const htmlTemplate = readFileSync(htmlFilePath, 'utf8');
const jsBundles = [...commonSet.values(), ...groupSet.values()].map(
(label) => `./${label}.js`,
);
const htmlOutput = Sqrl.render(htmlTemplate, { jsBundles, applyLavaMoat });
browserPlatforms.forEach((platform) => {
const dest = `./dist/${platform}/${htmlName}.html`;
// we dont have a way of creating async events atm
writeFileSync(dest, htmlOutput);
});
}
function beep() {
process.stdout.write('\x07');
}
function gracefulError(err) {
console.warn(err);
beep();
}