Autofixing new Perf cops in 0.37.2

   6 Performance/Casecmp
  18 Performance/Detect
   1 Performance/RangeInclude
  27 Performance/RedundantBlockCall
   6 Performance/RedundantMatch
   5 Performance/RedundantMerge
  18 Performance/StringReplacement

6 files changed, 8 insertions, 7 deletions

diff --git a/lib/chef/knife/cookbook_site_download.rb b/lib/chef/knife/cookbook_site_download.rb
index 2bdeea9781..21a251a011 100644
--- a/lib/chef/knife/cookbook_site_download.rb
+++ b/lib/chef/knife/cookbook_site_download.rb
@@ -102,7 +102,7 @@ class Chef
       end
 
       def specific_cookbook_version_url
-        "#{cookbooks_api_url}/#{@name_args[0]}/versions/#{@name_args[1].gsub('.', '_')}"
+        "#{cookbooks_api_url}/#{@name_args[0]}/versions/#{@name_args[1].tr('.', '_')}"
       end
     end
   end
diff --git a/lib/chef/knife/cookbook_site_show.rb b/lib/chef/knife/cookbook_site_show.rb
index a6a4c82c85..c0280cb318 100644
--- a/lib/chef/knife/cookbook_site_show.rb
+++ b/lib/chef/knife/cookbook_site_show.rb
@@ -33,7 +33,7 @@ class Chef
         when 1
           noauth_rest.get("https://supermarket.chef.io/api/v1/cookbooks/#{@name_args[0]}")
         when 2
-          noauth_rest.get("https://supermarket.chef.io/api/v1/cookbooks/#{@name_args[0]}/versions/#{name_args[1].gsub('.', '_')}")
+          noauth_rest.get("https://supermarket.chef.io/api/v1/cookbooks/#{@name_args[0]}/versions/#{name_args[1].tr('.', '_')}")
         end
       end
 
diff --git a/lib/chef/knife/core/bootstrap_context.rb b/lib/chef/knife/core/bootstrap_context.rb
index b05cae688c..5379b6504c 100644
--- a/lib/chef/knife/core/bootstrap_context.rb
+++ b/lib/chef/knife/core/bootstrap_context.rb
@@ -171,9 +171,10 @@ validation_client_name "#{@chef_config[:validation_client_name]}"
         def first_boot
           (@config[:first_boot_attributes] || {}).tap do |attributes|
             if @config[:policy_name] && @config[:policy_group]
-              attributes.merge!(:policy_name => @config[:policy_name], :policy_group => @config[:policy_group])
+              attributes[:policy_name] = @config[:policy_name]
+              attributes[:policy_group] = @config[:policy_group]
             else
-              attributes.merge!(:run_list => @run_list)
+              attributes[:run_list] = @run_list
             end
 
             attributes.merge!(:tags => @config[:tags]) if @config[:tags] && !@config[:tags].empty?
diff --git a/lib/chef/knife/core/subcommand_loader.rb b/lib/chef/knife/core/subcommand_loader.rb
index 95ab219c80..e636013c70 100644
--- a/lib/chef/knife/core/subcommand_loader.rb
+++ b/lib/chef/knife/core/subcommand_loader.rb
@@ -118,7 +118,7 @@ class Chef
         load_command(cmd_words)
         result = Chef::Knife.subcommands[find_longest_key(Chef::Knife.subcommands,
                                                           cmd_words, "_")]
-        result || Chef::Knife.subcommands[args.first.gsub("-", "_")]
+        result || Chef::Knife.subcommands[args.first.tr("-", "_")]
       end
 
       def guess_category(args)
diff --git a/lib/chef/knife/search.rb b/lib/chef/knife/search.rb
index 30a3db3cf2..520c9273af 100644
--- a/lib/chef/knife/search.rb
+++ b/lib/chef/knife/search.rb
@@ -177,7 +177,7 @@ class Chef
       # See lib/chef/search/query.rb for more examples of this.
       def create_result_filter(filter_string)
         final_filter = Hash.new
-        filter_string.gsub!(" ", "")
+        filter_string.delete!(" ")
         filters = filter_string.split(",")
         filters.each do |f|
           return_id, attr_path = f.split("=")
diff --git a/lib/chef/knife/ssh.rb b/lib/chef/knife/ssh.rb
index 4184171a4e..9c0f8936f0 100644
--- a/lib/chef/knife/ssh.rb
+++ b/lib/chef/knife/ssh.rb
@@ -424,7 +424,7 @@ class Chef
           end.join(" \\; ")
         end
 
-        tmux_name = "'knife ssh #{@name_args[0].gsub(/:/, '=')}'"
+        tmux_name = "'knife ssh #{@name_args[0].tr(':', '=')}'"
         begin
           server = session.servers_for.first
           cmd = ["tmux new-session -d -s #{tmux_name}",