Cleanup click-based source code

platformio/commands/show.py

@@ -3,16 +3,18 @@
 
 from datetime import datetime
 
-from click import argument, command, echo, style
+import click
 
+from platformio.commands.install import cli as cmd_install
 from platformio.exception import PlatformNotInstalledYet
 from platformio.pkgmanager import PackageManager
 from platformio.platforms.base import PlatformFactory
 
 
-@command("show", short_help="Show details about installed platforms")
-@argument("platform")
-def cli(platform):
+@click.command("show", short_help="Show details about installed platforms")
+@click.argument("platform")
+@click.pass_context
+def cli(ctx, platform):
 
     installed_platforms = PlatformFactory.get_platforms(
         installed=True).keys()
@@ -24,18 +26,18 @@ def cli(platform):
         else:
             raise PlatformNotInstalledYet(platform)
 
-    p = PlatformFactory().newPlatform(platform)
-    echo("{name:<20} - {info}".format(name=style(p.get_name(), fg="cyan"),
-                                      info=p.get_short_info()))
+    p = PlatformFactory.newPlatform(platform)
+    click.echo("{name:<20} - {info}".format(
+        name=click.style(p.get_name(), fg="cyan"), info=p.get_short_info()))
 
     installed_packages = PackageManager.get_installed()
     for name in p.get_installed_packages():
         data = installed_packages[name]
         pkgalias = p.get_pkg_alias(name)
-        echo("----------")
-        echo("Package: %s" % style(name, fg="yellow"))
+        click.echo("----------")
+        click.echo("Package: %s" % click.style(name, fg="yellow"))
         if pkgalias:
-            echo("Alias: %s" % pkgalias)
-        echo("Version: %d" % int(data['version']))
-        echo("Installed: %s" % datetime.fromtimestamp(
+            click.echo("Alias: %s" % pkgalias)
+        click.echo("Version: %d" % int(data['version']))
+        click.echo("Installed: %s" % datetime.fromtimestamp(
             data['time']).strftime("%Y-%m-%d %H:%M:%S"))