--- a/install.py	Sun Apr 01 22:44:59 2018 -0700
+++ b/install.py	Sun Apr 01 22:57:57 2018 -0700
@@ -12,10 +12,13 @@
 dotfiles_dir = os.path.abspath(os.path.dirname(__file__))
 
 is_nix = True
+is_mac = False
 is_windows = False
 if sys.platform == "win32":
     is_nix = False
     is_windows = True
+if sys.platform == 'darwin':
+    is_mac = True
 
 
 def _p(*paths, force_unix=False):
@@ -70,6 +73,14 @@
     return decorator
 
 
+def only_on_mac(f):
+    @functools.wraps(f)
+    def decorator(*args, **kwargs):
+        if is_mac:
+            return f(*args, **kwargs)
+    return decorator
+
+
 def only_on_win(f):
     @functools.wraps(f)
     def decorator(*args, **kwargs):
@@ -244,6 +255,41 @@
             clone_hg(url, full_path, force=force)
 
 
+@only_on_mac
+@run_priority(210)
+def install_xcode():
+    if shutil.which('xcodebuild') is None:
+        print("Installing XCode")
+        subprocess.check_call(['xcode-select', '--install'])
+        subprocess.check_call(['sudo', 'xcodebuild', '-license', 'accept'])
+
+
+@only_on_mac
+@run_priority(209)
+def install_homebrew():
+    if shutil.which('brew') is None:
+        print("Installing Homebrew and Homebrew Cask")
+        subprocess.check_call([
+            '/usr/bin/ruby', '-e',
+            "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"])  # NOQA
+        subprocess.check_call(['brew', 'tap', 'caskroom/fonts'])
+
+
+@only_on_mac
+@needs_config
+@supports_forcing
+@run_priority(208)
+def install_mactools(cfg, force=False):
+    if not cfg.has_section('mactools'):
+        return
+
+    for name, _ in cfg.items('mactools'):
+        args = ['brew', 'install', name]
+        if force:
+            args.append('--force')
+        subprocess.check_call(args)
+
+
 def main():
     print("dotfiles installer")
     print("python %s" % sys.version)