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#
# Author:: John Keiser (<jkeiser@opscode.com>)
# Copyright:: Copyright (c) 2012 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/chef_fs/file_system/chef_server_root_dir'
require 'chef/chef_fs/file_system/chef_repository_file_system_root_dir'
require 'chef/chef_fs/file_pattern'
require 'chef/chef_fs/path_utils'
require 'chef/config'
class Chef
module ChefFS
class Knife < Chef::Knife
def self.common_options
option :repo_mode,
:long => '--repo-mode MODE',
:default => "default",
:description => "Specifies the local repository layout. Values: default or full"
end
def chef_fs
@chef_fs ||= Chef::ChefFS::FileSystem::ChefServerRootDir.new("remote", Chef::Config, config[:repo_mode])
end
def chef_repo_path
@chef_repo_path ||= begin
if Chef::Config.chef_repo_path
File.expand_path(Chef::Config.chef_repo_path)
elsif Chef::Config.cookbook_path
File.expand_path('..', Array(Chef::Config.cookbook_path).flatten.first)
else
nil
end
end
end
# Smooth out some inappropriate (for now) variable defaults in Chef.
def config_var(name)
case name
when :data_bag_path
Chef::Config[name] == Chef::Config.platform_specific_path('/var/chef/data_bags') ? nil : Chef::Config[name]
when :node_path
Chef::Config[name] == '/var/chef/node' ? nil : Chef::Config[name]
when :role_path
Chef::Config[name] == Chef::Config.platform_specific_path('/var/chef/roles') ? nil : Chef::Config[name]
when :chef_repo_path
chef_repo_path
else
Chef::Config[name]
end
end
def object_paths
@object_paths ||= begin
result = {}
%w(clients cookbooks data_bags environments nodes roles users).each do |object_name|
variable_name = "#{object_name[0..-2]}_path" # cookbooks -> cookbook_path
paths = config_var(variable_name.to_sym)
if !paths
if !chef_repo_path
# TODO if chef_repo is not specified and repo_mode does not require
# clients/users/nodes, don't require them to be specified.
Chef::Log.error("Must specify either chef_repo_path or #{variable_name} in Chef config file")
exit(1)
end
paths = File.join(chef_repo_path, object_name)
end
paths = Array(paths).flatten.map { |path| File.expand_path(path) }
result[object_name] = paths
end
result
end
end
# Returns the given real path's location relative to the server root.
#
# If chef_repo is /home/jkeiser/chef_repo,
# and pwd is /home/jkeiser/chef_repo/cookbooks,
# server_path('blah') == '/cookbooks/blah'
# server_path('../roles/blah.json') == '/roles/blah'
# server_path('../../readme.txt') == nil
# server_path('*/*ab*') == '/cookbooks/*/*ab*'
# server_path('/home/jkeiser/chef_repo/cookbooks/blah') == '/cookbooks/blah'
# server_path('/home/*/chef_repo/cookbooks/blah') == nil
#
# If there are multiple paths (cookbooks, roles, data bags, etc. can all
# have separate paths), and cwd+the path reaches into one of them, we will
# return a path relative to that. Otherwise we will return a path to
# chef_repo.
#
# Globs are allowed as well, but globs outside server paths are NOT
# (presently) supported. See above examples. TODO support that.
#
# If the path does not reach into ANY specified directory, nil is returned.
def server_path(file_path)
pwd = File.expand_path(Dir.pwd)
absolute_path = File.expand_path(file_path, pwd)
# Check all object paths (cookbooks_dir, data_bags_dir, etc.)
object_paths.each_pair do |name, paths|
paths.each do |path|
if absolute_path[0,path.length] == path
relative_path = Chef::ChefFS::PathUtils::relative_to(path, absolute_path)
return relative_path == '.' ? "/#{name}" : "/#{name}/#{relative_path}"
end
end
end
# Check chef_repo_path
if chef_repo_path[0,absolute_path.length] == absolute_path
relative_path = Chef::ChefFS::PathUtils::relative_to(chef_repo_path, absolute_path)
return relative_path == '.' ? '/' : "/#{relative_path}"
end
nil
end
# The current directory, relative to server root
def base_path
@base_path ||= server_path(File.expand_path(Dir.pwd))
end
# Print the given server path, relative to the current directory
def format_path(server_path)
if base_path && server_path[0,base_path.length] == base_path
if server_path == base_path
return "."
elsif server_path[base_path.length] == "/"
return server_path[base_path.length + 1, server_path.length - base_path.length - 1]
elsif base_path == "/" && server_path[0] == "/"
return server_path[1, server_path.length - 1]
end
end
server_path
end
def local_fs
@local_fs ||= Chef::ChefFS::FileSystem::ChefRepositoryFileSystemRootDir.new(object_paths)
end
def pattern_args
@pattern_args ||= pattern_args_from(name_args)
end
def pattern_args_from(args)
# TODO support absolute file paths and not just patterns? Too much?
# Could be super useful in a world with multiple repo paths
args.map do |arg|
Chef::ChefFS::FilePattern::relative_to(base_path, arg)
end
end
end
end
end
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