Add a virtualenv-based python bootstrapping service to infra.

DEPS

Index: DEPS
diff --git a/DEPS b/DEPS
index a5910faffa8dcf2109b51e2591e43b335b782431..5cb3282cebc7f895e05a64d032798bcaae1f1edf 100644
--- a/DEPS
+++ b/DEPS
@@ -6,42 +6,24 @@ deps = {
     "https://chromium.googlesource.com/chromium/tools/depot_tools.git",
 
   ## external deps
-  # v0.8.0
-  "infra/infra/ext/argcomplete":
-    ("https://chromium.googlesource.com/infra/third_party/argcomplete.git"
-     "@a88dcaae3132003ae123d39a2cd9924113b8f985"),
-
-  # v1.5 (v2 requires more dependencies)
-  "infra/infra/ext/dateutil":
-    ("https://chromium.googlesource.com/infra/third_party/dateutil.git"
-     "@731ee1ce8456361eba2c619e90989f6db45625b9"),
-
-  # master at 2014-05-03 9:27-4
-  "infra/infra/ext/httplib2":
-    ("https://chromium.googlesource.com/infra/third_party/httplib2.git"
-     "@7d1b88a3cf34774242bf4c0578c09c0092bb05d8"),
-
-  # master at 2014-06-25 15:56-7
-  "infra/infra/ext/oauth2client":
-    ("https://chromium.googlesource.com/infra/third_party/oauth2client.git"
-     "@1a3a99f11369806d7c517350df0b95ec50c317dd"),
-
-  # master at 2014-06-02 12:44+0
-  "infra/infra/ext/pytz":
-    ("https://chromium.googlesource.com/infra/third_party/pytz.git"
-     "@056207cdda4a8f01f7f0bd924e89d0df434c7547"),
-
-  # v2.3.0
-  "infra/infra/ext/requests":
-    ("https://chromium.googlesource.com/infra/third_party/requests.git"
-     "@6366d3dd190a9e58ca582955cddf7e2ac5f32dcc"),
+  # v1.11.6
+  "infra/bootstrap/virtualenv":
+    ("https://github.com/pypa/virtualenv.git"
+     "@93cfa83481a1cb934eb14c946d33aef94c21bcb0"),
 }
 
 hooks = [
   {
     "pattern": ".",
     "action": [
-      "python", "-u", "infra/run.py",
+      "python", "./infra/bootstrap/bootstrap.py", "--deps_file",

[agable, 2014/07/10 17:12:55]

Despite being pre-setup (obviously), this could still be invoked as "python -u
infra.bootstrap" couldn't it?

[iannucci, 2014/07/11 02:14:44]

I added the '-u' back, but the path.to.module syntax only works when using
run.py, which, in turn, assumes that ENV is already set up (and gclient is
running this from the infra/.. directory, which would mean that `python -m
infra.infra.bootstrap.bootstrap` would require an __init__.py in infra :p).

+      "infra/bootstrap/deps.pst", "infra/ENV"
+    ],
+  },
+  {
+    "pattern": ".",
+    "action": [
+      "./infra/ENV/bin/python", "-u", "infra/run.py",
       "infra.tools.bootstrap.get_appengine", "--dest=..",

[agable, 2014/07/10 17:12:55]

I dislike the fact that there's now both "infra/bootstrap" and
"infra/tools/bootstrap". This should move into infra/bootstrap, probably.

[iannucci, 2014/07/11 02:14:44]

Done.

     ],
   },