Move knife to its own gem

This moves knife into /knife, in the same way that chef-utils and
chef-config are separated.

NOTES:

== File History ==

If you see this message as the first message in the history of
an knife file, you can see the complete history by using
'git log --follow',  'git config log.follow true'  to make it the default
behavior in this repository, or 'git config --globa log.follow true' to
make it the global default.

== API Changes ==

At the API level, there is one breaking change:
CookbookSiteStreamingUploader has been moved out of chef and into
knife/core.

There were a combination of reasons we chose this path:
- CookbookSiteStreamingUploader (CSSU) is only used within Knife.
- CookbookSiteStreamingUploader (CSSU) references the
  command Chef::Knife::CookbookMetadata in order to generate
  a metadata file for the cookbook to upload
- Chef::Knife::CookbookMetadata is no longer available to Chef:: because
  Knife has been moved to its own gem.  Knife gem depends on the Chef gem,
  so Chef can't depend on something in Knife.

A search for usage in related projects (berks, chef-cli) and the
Internet at large shows that there are no known external consumers of CSSU.

For now, we'll move this class into Knife::Core, as it's going to be
faster than splitting off the metadata generation and time is a concern. If we
find that we need the metadata generation in chef/ proper, we should evaluate
decoupling that functionality from Knife::CookbookMetadata and exposing
it via something like `Chef::Cookbook::Metadata#from_cookbook_files`

== spec changes ==

The specs are kept in their existing locations, though we have
separated out a `knife_spec_helper` so that we can ensure knife is not
directly accessing chef requires; and chef is relying on knife's at all.

We also now clear gem paths with each test, to force gem state to reset.
This works around a problem where a combination of tests
is corrupting the internal Gem state, causing failures in
rubygems_spec.  See branch `mp/broken-gems` for many more details around
findings so far.

Signed-off-by: Marc A. Paradise <marc.paradise@gmail.com>

1 files changed, 15 insertions, 7 deletions

diff --git a/tasks/rspec.rb b/tasks/rspec.rb
index 929e0f91b0..050c40be5c 100644
--- a/tasks/rspec.rb
+++ b/tasks/rspec.rb
@@ -25,8 +25,9 @@ begin
 
   desc "Run specs for Chef's Gem Components"
   task :component_specs do
-    %w{chef-utils chef-config}.each do |gem|
+    %w{chef-utils chef-config knife}.each do |gem|
       Dir.chdir(gem) do
+        puts "--- Running #{gem} specs"
         Bundler.with_unbundled_env do
           sh("bundle install --jobs=3 --retry=3")
           sh("bundle exec rake spec")
@@ -39,19 +40,24 @@ begin
 
   task spec: :component_specs
 
-  desc "Run all specs in spec directory"
+  desc "Run all chef specs in spec directory"
   RSpec::Core::RakeTask.new(:spec) do |t|
     t.verbose = false
     t.rspec_opts = %w{--profile}
-    t.pattern = FileList["spec/**/*_spec.rb"]
+    t.pattern = FileList["spec/**/*_spec.rb"].reject do |path|
+      path =~ /knife.*/
+    end
   end
 
   namespace :spec do
-    desc "Run all specs in spec directory"
+    desc "Run all chef specs in spec directory"
     RSpec::Core::RakeTask.new(:all) do |t|
       t.verbose = false
       t.rspec_opts = %w{--profile}
       t.pattern = FileList["spec/**/*_spec.rb"]
+      t.pattern = FileList["spec/**/*_spec.rb"].reject do |path|
+        path =~ /knife.*/
+      end
     end
 
     desc "Print Specdoc for all specs"
@@ -61,7 +67,7 @@ begin
       t.pattern = FileList["spec/**/*_spec.rb"]
     end
 
-    desc "Run the specs under spec/unit with activesupport loaded"
+    desc "Run chef's node and role unit specs with activesupport loaded"
     RSpec::Core::RakeTask.new(:activesupport) do |t|
       t.verbose = false
       t.rspec_opts = %w{--require active_support/core_ext --profile}
@@ -70,11 +76,13 @@ begin
     end
 
     %i{unit functional integration stress}.each do |sub|
-      desc "Run the specs under spec/#{sub}"
+      desc "Run the chef specs under spec/#{sub}"
       RSpec::Core::RakeTask.new(sub) do |t|
         t.verbose = false
         t.rspec_opts = %w{--profile}
-        t.pattern = FileList["spec/#{sub}/**/*_spec.rb"]
+        t.pattern = FileList["spec/#{sub}/**/*_spec.rb"].reject do |path|
+          path =~ /knife.*/
+        end
       end
     end
   end