cipd recipe_module

scripts/slave/recipe_modules/cipd/api.py

+# Copyright 2015 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+from recipe_engine import recipe_api
+
+class CIPDApi(recipe_api.RecipeApi):
+  """CIPDApi provides support for CIPD."""
+  CLIENT_VERSIONS = {
+    'linux-amd64': '9579504cec0336688292f5b0b68c3ed4e288e273',
+  }
+
+  def __init__(self, *args, **kwargs):
+    super(CIPDApi, self).__init__(*args, **kwargs)
+    self.bin_path = None
+
+  def install_client(self, step_name):
+    self.bin_path = self.m.path['slave_build'].join(

[Vadim Sh., 2015/07/01 00:10:57]

actually, bin_path doesn't have to depend on version or instance ID. Bootstrap
script keeps VERSION file inside it to keep track of installed version.

This should be enough:
self.bin_path = self.m.path['slave_build'].join('cipd')

[seanmccullough, 2015/07/01 00:50:19]

Done.

+        'cipd_%s' % self.CLIENT_VERSIONS[self.platform_tag()])
+    package = "infra/tools/cipd/%s" % self.platform_tag()
+    script_input = {
+      'package': package,
+      'version': self.CLIENT_VERSIONS[self.platform_tag()],
+      'bin_path': self.bin_path,
+    }
+
+    self.m.python(
+        name=step_name,
+        script=self.resource('bootstrap.py'),
+        stdin=self.m.json.input(script_input))
+
+    # TODO(seanmccullough): clean up older CIPD installations.
+
+  def platform_tag(self):
+    # TODO(seanmccullough): get the arch from env instead of hardcoding it.
+    return "linux-amd64"
+
+  def ensure_installed(self, root, pkgs):
+    pkg_list = []
+    for pkg_name in sorted(pkgs):
+      pkg_spec = pkgs[pkg_name]
+      pkg_list.append("%s %s" % (pkg_name, pkg_spec['version']))
+
+    list_data = self.m.raw_io.input("\n".join(pkg_list))
+    if self.bin_path is None:
+      raise self.m.step.StepFailure(
+          "install_client wasn't called prior to ensure_installed")
+
+    self.m.step(
+      "ensure_installed",
+                        [self.bin_path.join('cipd'), "ensure",
+          "--root", root, "--list", list_data],
+    )
+