[OC-3564] move core Chef to the repo root \o/ \m/

The opscode/chef repository now only contains the core Chef library code
used by chef-client, knife and chef-solo!

1 files changed, 86 insertions, 0 deletions

diff --git a/lib/chef/knife/exec.rb b/lib/chef/knife/exec.rb
new file mode 100644
index 0000000000..3e8196c616
--- /dev/null
+++ b/lib/chef/knife/exec.rb
@@ -0,0 +1,86 @@
+#--
+# Author:: Daniel DeLeo (<dan@opscode.com)
+# Copyright:: Copyright (c) 2010 Opscode, Inc.
+# License:: Apache License, Version 2.0
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+require 'chef/knife'
+
+class Chef::Knife::Exec < Chef::Knife
+
+  banner "knife exec [SCRIPT] (options)"
+
+  option :exec,
+    :short => "-E CODE",
+    :long => "--exec CODE",
+    :description => "a string of Chef code to execute"
+
+  option :script_path,
+    :short => "-p PATH:PATH",
+    :long => "--script-path PATH:PATH",
+    :description => "A colon-separated path to look for scripts in",
+    :proc => lambda { |o| o.split(":") }
+
+  deps do
+    require 'chef/shell/ext'
+  end
+
+  def run
+    config[:script_path] ||= Array(Chef::Config[:script_path])
+
+    # Default script paths are chef-repo/.chef/scripts and ~/.chef/scripts
+    config[:script_path] << File.join(Chef::Knife.chef_config_dir, 'scripts') if Chef::Knife.chef_config_dir
+    config[:script_path] << File.join(ENV['HOME'], '.chef', 'scripts') if ENV['HOME']
+
+    scripts = Array(name_args)
+    context = Object.new
+    Shell::Extensions.extend_context_object(context)
+    if config[:exec]
+      context.instance_eval(config[:exec], "-E Argument", 0)
+    elsif !scripts.empty?
+      scripts.each do |script|
+        file = find_script(script)
+        context.instance_eval(IO.read(file), file, 0)
+      end
+    else
+      script = STDIN.read
+      context.instance_eval(script, "STDIN", 0)
+    end
+  end
+
+  def find_script(x)
+    # Try to find a script. First try expanding the path given.
+    script = File.expand_path(x)
+    return script if File.exists?(script)
+
+    # Failing that, try searching the script path. If we can't find
+    # anything, fail gracefully.
+    Chef::Log.debug("Searching script_path: #{config[:script_path].inspect}")
+
+    config[:script_path].each do |path|
+      path = File.expand_path(path)
+      test = File.join(path, x)
+      Chef::Log.debug("Testing: #{test}")
+      if File.exists?(test)
+        script = test
+        Chef::Log.debug("Found: #{test}")
+        return script
+      end
+    end
+    ui.error("\"#{x}\" not found in current directory or script_path, giving up.")
+    exit(1)
+  end
+
+end