diff --git a/build/commands/scripts/bootstrap.js b/build/commands/scripts/bootstrap.js
deleted file mode 100644
index 62f99d884c8..00000000000
--- a/build/commands/scripts/bootstrap.js
+++ /dev/null
@@ -1,86 +0,0 @@
-const dotenv = require('dotenv')
-const program = require('commander');
-const path = require('path')
-const spawn = require('child_process').spawn
-
-const scriptDir = path.basename(__dirname)
-const rootDir = scriptDir.join('..')
-const depotToolsDir = rootDir.join('vendor', 'depot_tools')
-const srcDir = rootDir.join('src')
-const muonDir = srdDir.join('electron')
-const patchesDir = srdDir.join('libchromiumcontent')
-const process.env.PATH = process.env.PATH.split(path.delimiter).push(depotToolsDir).join(path.delimiter)
-
-const defaultChromeRef = process.env.npm_package_config_chrome_ref
-const defaultMuonRef = process.env.npm_package_config_muon_ref
-const defaultPatchesRef = process.env.npm_package_config_patches_ref
-
-const default_options = {
-  env: process.env,
-  shell: true,
-  stdio: 'inherit',
-  cwd: srcDir
-}
-
-const submoduleSync = (options = {}) => {
-  spawnSync('git', ['submodule', 'sync'], Object.assign(default_options, options))
-  spawnSync('git', ['submodule', 'update', '--init', '--recursive'], Object.assign(default_options, options))
-}
-const gclientSync = (options = {}) => {
-  spawnSync('gclient', ['sync', '--force', '--nohooks', '--with_branch_heads'], Object.assign(default_options, options))
-}
-
-const gclientRunhooks = (options = {}) => {
-  spawnSync('gclient', ['runnohooks'], Object.assign(default_options, options))
-}
-
-const fetch = (options = {}) => {
-  spawnSync('git', ['fetch', 'origin'], Object.assign(default_options, options))
-}
-
-const fetchTags = (options = {}) => {
-  spawnSync('git', ['fetch', 'origin', '--tags'], Object.assign(default_options, options))
-}
-
-const setVersion = (version, options = {}) => {
-  spawnSync('git', ['reset', '--hard', version], Object.assign(default_options, options))
-}
-
-const setChromeVersion = (version) => {
-  const options = { cwd: srdDir }
-  setVersion(options)
-}
-
-const setMuonVersion = (version) => {
-  const options = { cwd: mounDir }
-  fetch(options)
-  fetchTags(options)
-  setVersion(version, options)
-}
-
-const setPatchesVersion = (version) => {
-  const options = { cwd: patchesDir }
-  fetch(options)
-  fetchTags(options)
-  setVersion(version, options)
-}
-
-program
-  .version(process.env.npm_package_version)
-  .option('--chrome', 'chrome git ref to checkout')
-  .option('--muon', 'muon git ref to checkout')
-  .option('--patches', 'patches git ref to checkout')
-  .action((version) => {
-    // sync depot tools into vendo/depot_tools
-    submoduleSync()
-    // initial gclient sync
-    gclientSync({cwd: rootDir})
-    fetchtags()
-    setChromeVersion(options.chrome || defaultChromeRef)
-    // update DEPS
-    gclientSync()
-    setMuonVersion(options.muon || defaultMuonRef)
-    setPatchesVersion(options.patches || defaultMuonRef)
-    // run post-sync hooks
-    gclientRunhooks()
-  })
diff --git a/build/commands/scripts/sync.js b/build/commands/scripts/sync.js
new file mode 100644
index 00000000000..3a1499550a4
--- /dev/null
+++ b/build/commands/scripts/sync.js
@@ -0,0 +1,122 @@
+const dotenv = require('dotenv')
+const program = require('commander');
+const path = require('path')
+const spawnSync = require('child_process').spawnSync
+const fs = require('fs-extra')
+
+const scriptDir = path.dirname(__filename)
+const rootDir = path.join(scriptDir, '..')
+const depotToolsDir = path.join(rootDir, 'vendor', 'depot_tools')
+const srcDir = path.join(rootDir, 'src')
+const muonDir = path.join(srcDir, 'electron')
+const patchesDir = path.join(srcDir, 'libchromiumcontent')
+const resourcesDir = path.join(rootDir, 'resources')
+
+let shell_path = process.env.PATH.split(path.delimiter)
+shell_path.push(depotToolsDir)
+shell_path = shell_path.join(path.delimiter)
+process.env.PATH = shell_path
+
+const defaultChromeRef = process.env.npm_package_config_chrome_ref
+const defaultMuonRef = process.env.npm_package_config_muon_ref
+const defaultPatchesRef = process.env.npm_package_config_patches_ref
+
+const default_options = {
+  env: process.env,
+  shell: true,
+  stdio: 'inherit',
+  cwd: srcDir
+}
+
+const run = (command, arguments, options) => {
+  const prog = spawnSync(command, arguments, options)
+  if (prog.status !== 0) {
+    process.exit(1)
+  }
+}
+const submoduleSync = (options = {}) => {
+  run('git', ['submodule', 'sync'], Object.assign(default_options, options))
+  run('git', ['submodule', 'update', '--init', '--recursive'], Object.assign(default_options, options))
+}
+const gclientSync = (options = {}) => {
+  run('gclient', ['sync', '--force', '--nohooks', '--with_branch_heads'], Object.assign(default_options, options))
+}
+
+const gclientRunhooks = (options = {}) => {
+  run('gclient', ['runnohooks'], Object.assign(default_options, options))
+}
+
+const fetch = (options = {}) => {
+  run('git', ['fetch', 'origin'], Object.assign(default_options, options))
+}
+
+const fetchTags = (options = {}) => {
+  run('git', ['fetch', 'origin', '--tags'], Object.assign(default_options, options))
+}
+
+const setVersion = (version, options = {}) => {
+  run('git', ['reset', '--hard', version], Object.assign(default_options, options))
+}
+
+const setChromeVersion = (version) => {
+  const options = { cwd: srcDir }
+  setVersion(version, options)
+}
+
+const setMuonVersion = (version) => {
+  const options = { cwd: muonDir }
+  fetch(options)
+  fetchTags(options)
+  setVersion(version, options)
+}
+
+const setPatchesVersion = (version) => {
+  const options = { cwd: patchesDir }
+  fetch(options)
+  fetchTags(options)
+  setVersion(version, options)
+}
+
+const updateBranding = () => {
+  const braveThemeDir = path.join(srcDir, 'chrome', 'app', 'theme', 'brave')
+  fs.ensureDirSync(braveThemeDir)
+  fs.copySync(path.join(resourcesDir, 'BRANDING'), path.join(braveThemeDir, 'BRANDING'))
+}
+
+program
+  .version(process.env.npm_package_version)
+  .option('--chrome <ref>', 'chrome git ref to checkout')
+  .option('--muon <ref>', 'muon git ref to checkout')
+  .option('--patches <ref>', 'patches git ref to checkout')
+  .parse(process.argv)
+
+// sync depot tools into vendo/depot_tools
+console.log('Updating submodules...')
+submoduleSync()
+// initial gclient sync
+console.log('gclient sync...')
+gclientSync({cwd: rootDir})
+
+console.log('fetching chrome tags...')
+fetchTags()
+
+const chromeRef = program.chrome || defaultChromeRef
+console.log('git checkout chrome ' + chromeRef + '...')
+setChromeVersion(program.chrome || defaultChromeRef)
+
+const muonRef = program.muon || defaultMuonRef
+console.log('git checkout muon ' + muonRef + '...')
+setMuonVersion(muonRef)
+
+const patchesRef = program.patches || defaultPatchesRef
+console.log('git checkout patches ' + patchesRef + '...')
+setPatchesVersion(program.patches || patchesRef)
+// update DEPS
+console.log('gclient sync...')
+gclientSync()
+
+// run post-sync hooks
+console.log('gclient runhooks...')
+gclientRunhooks()
+console.log('update branding...')
+updateBranding()