launcher/version: include OS/CPU info in output

We often ask users what OS/version they're running when debugging.
Include that in the version output to simplify the process.

Change-Id: Ie480b6d1c874e6f4c6f4996a03795077b844f858
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/256732
Reviewed-by: David Pursehouse <dpursehouse@collab.net>
Tested-by: Mike Frysinger <vapier@google.com>

repo

@@ -993,6 +993,10 @@ def _Version():
   print('       (from %s)' % (__file__,))
   print('git %s' % (ParseGitVersion().full,))
   print('Python %s' % sys.version)
+  uname = platform.uname()
+  print('OS %s %s (%s)' % (uname.system, uname.release, uname.version))
+  print('CPU %s (%s)' %
+        (uname.machine, uname.processor if uname.processor else 'unknown'))
   sys.exit(0)
 
 

subcmds/version.py

@@ -15,7 +15,10 @@
 # limitations under the License.
 
 from __future__ import print_function
+
+import platform
 import sys
+
 from command import Command, MirrorSafeCommand
 from git_command import git, RepoSourceVersion, user_agent
 from git_refs import HEAD
@@ -52,3 +55,7 @@ class Version(Command, MirrorSafeCommand):
     print('git %s' % git.version_tuple().full)
     print('git User-Agent %s' % user_agent.git)
     print('Python %s' % sys.version)
+    uname = platform.uname()
+    print('OS %s %s (%s)' % (uname.system, uname.release, uname.version))
+    print('CPU %s (%s)' %
+          (uname.machine, uname.processor if uname.processor else 'unknown'))