Merge pull request #54 from randallreedjr/feature/version-flag

Add version flag option (-v or --version)

lib/git_switch/options.rb

@@ -8,14 +8,18 @@ def initialize(args)
     def flags
       @flags ||= args.select do |arg|
         arg.match(/\A\-[cglv]{1}\z/) ||
-          arg.match(/\A\-\-(config|global|list|verbose){1}\z/)
+          arg.match(/\A\-\-(config|global|list|verbose|version){1}\z/)
       end
     end
 
     def valid_args?
-      if config_flag? && args.count == 1
+      if config?
         return true
-      elsif list_flag? && args.count == 1
+      elsif list?
+        return true
+      elsif version?
+        return true
+      elsif verbose?
         return true
       elsif no_flags?
         return true
@@ -41,22 +45,34 @@ def list?
       list_flag? && args.count == 1
     end
 
+    def version?
+      version_flag? && args.count == 1
+    end
+
     def global?
       (flags.include? '-g') || (flags.include? '--global')
     end
 
     def verbose?
-      (flags.include? '-v') || (flags.include? '--verbose')
+      verbose_flag? && args.count > 1
     end
 
     private
 
+    def config_flag?
+      (flags.include? '-c') || (flags.include? '--config')
+    end
+
     def list_flag?
       (flags.include? '-l') || (flags.include? '--list')
     end
 
-    def config_flag?
-      (flags.include? '-c') || (flags.include? '--config')
+    def version_flag?
+      ((flags.include? '-v') && args.count == 1) || (flags.include? '--version')
+    end
+
+    def verbose_flag?
+      ((flags.include? '-v') && args.count > 1) || (flags.include? '--verbose')
     end
 
     def no_flags?
@@ -68,7 +84,7 @@ def one_flag?
     end
 
     def flag_only?
-      list_flag? || config_flag?
+      list_flag? || config_flag? || version_flag?
     end
 
     def flag_count(args)

lib/git_switch/switcher.rb

@@ -4,7 +4,7 @@
 module GitSwitch
   class Switcher
     attr_reader :config, :options
-    delegate :usage?, :config?, :list?, :global?, to: :options
+    delegate :usage?, :config?, :list?, :version?, :global?, to: :options
     delegate :profile, :name, :username, :email, :ssh, :ssh_command, :print_list, :configure!, :valid_profile?, to: :config
 
     def initialize(args)
@@ -21,6 +21,8 @@ def run
         configure!
       elsif list?
         print_list
+      elsif version?
+        print_version
       else
         set!
       end
@@ -47,6 +49,10 @@ def print_usage
       puts usage
     end
 
+    def print_version
+      puts GitSwitch::VERSION
+    end
+
     def print_settings
       if options.verbose?
         puts "\nGit Config:"
@@ -77,7 +83,7 @@ def set_ssh
 
     def usage
       <<~USAGE
-      usage: git switch [-l | --list] [-c | --config]
+      usage: git switch [-c | --config] [-l | --list] [-v | --version]
                         <profile> [-v | --verbose] [-g | --global]
 
       configure profiles
@@ -94,6 +100,9 @@ def usage
 
       see available profiles
           git switch -l
+
+      view installed gem version
+          git switch -v
       USAGE
     end
   end

lib/git_switch/version.rb

@@ -1,3 +1,3 @@
 module GitSwitch
-  VERSION = "0.4.1"
+  VERSION = "0.4.2"
 end

spec/lib/git_switch/options_spec.rb

@@ -19,6 +19,20 @@
         end
       end
 
+      context 'when run in version mode' do
+        let(:args) { ['-v'] }
+        it 'returns an array of the flags' do
+          expect(options.flags).to eq ['-v']
+        end
+      end
+
+      context 'when run in verbose mode' do
+        let(:args) { ['-v', 'personal'] }
+        it 'returns an array of the flags' do
+          expect(options.flags).to eq ['-v']
+        end
+      end
+
       context 'when run in global mode' do
         let(:args) { ['personal', '-g'] }
         it 'returns an array of the flags' do
@@ -56,6 +70,20 @@
         end
       end
 
+      context 'when run in version mode' do
+        let(:args) { ['--version'] }
+        it 'returns an array of the flags' do
+          expect(options.flags).to eq ['--version']
+        end
+      end
+
+      context 'when run in verbose mode' do
+        let(:args) { ['--verbose', 'personal'] }
+        it 'returns an array of the flags' do
+          expect(options.flags).to eq ['--verbose']
+        end
+      end
+
       context 'when run in global mode' do
         let(:args) { ['personal', '--global'] }
         it 'returns an array of the flags' do
@@ -117,6 +145,14 @@
       end
     end
 
+    context 'when run with config flag' do
+      let(:args) { ['-c'] }
+
+      it 'returns true' do
+        expect(options.valid_args?).to be true
+      end
+    end
+
     context 'when run with list flag' do
       let(:args) { ['-l'] }
 
@@ -125,14 +161,46 @@
       end
     end
 
-    context 'when run with config flag' do
-      let(:args) { ['-c'] }
+    context 'when run with version flag' do
+      let(:args) { ['-v'] }
+
+      it 'returns true' do
+        expect(options.valid_args?).to be true
+      end
+    end
+
+    context 'when run with version flag with profile' do
+      let(:args) { ['--version', 'personal'] }
+
+      it 'returns false' do
+        expect(options.valid_args?).to be false
+      end
+
+      it 'prints error message' do
+        expect{options.valid_args?}.to output(expected_error).to_stdout
+      end
+    end
+
+    context 'when run with verbose flag with profile' do
+      let(:args) { ['-v', 'personal'] }
 
       it 'returns true' do
         expect(options.valid_args?).to be true
       end
     end
 
+    context 'when run with verbose flag without profile' do
+      let(:args) { ['--verbose'] }
+
+      it 'returns false' do
+        expect(options.valid_args?).to be false
+      end
+
+      it 'prints error message' do
+        expect{options.valid_args?}.to output(expected_error).to_stdout
+      end
+    end
+
     context 'when run with multiple flags' do
       let(:args) { ['personal','-g','-l'] }
       let(:options) { GitSwitch::Options.new(args) }
@@ -250,6 +318,80 @@
     end
   end
 
+  describe 'version?' do
+    context 'when args includes -v' do
+      let(:args) { ['-v'] }
+      it 'returns true' do
+        expect(options.version?).to be true
+      end
+    end
+
+    context 'when args includes --version' do
+      let(:args) { ['--version'] }
+      it 'returns true' do
+        expect(options.version?).to be true
+      end
+    end
+
+    context 'when args include -v and a profile' do
+      let(:args) { ['-v', 'personal'] }
+      it 'returns false' do
+        expect(options.version?).to be false
+      end
+    end
+
+    context 'when args include --version and a profile' do
+      let(:args) { ['--version', 'personal'] }
+      it 'returns false' do
+        expect(options.version?).to be false
+      end
+    end
+
+    context 'when args do not include -v or --version' do
+      let(:args) { [] }
+      it 'returns false' do
+        expect(options.version?).to be false
+      end
+    end
+  end
+
+  describe 'verbose?' do
+    context 'when args includes -v' do
+      let(:args) { ['-v', 'personal'] }
+      it 'returns true' do
+        expect(options.verbose?).to be true
+      end
+    end
+
+    context 'when args includes --verbose' do
+      let(:args) { ['--verbose', 'personal'] }
+      it 'returns true' do
+        expect(options.verbose?).to be true
+      end
+    end
+
+    context 'when args include -v and no profile' do
+      let(:args) { ['-v'] }
+      it 'returns false' do
+        expect(options.verbose?).to be false
+      end
+    end
+
+    context 'when args include --verbose and no profile' do
+      let(:args) { ['--verbose'] }
+      it 'returns false' do
+        expect(options.verbose?).to be false
+      end
+    end
+
+    context 'when args do not include -v or --version' do
+      let(:args) { [] }
+      it 'returns false' do
+        expect(options.version?).to be false
+      end
+    end
+  end
+
   describe 'global?' do
     context 'when args includes -g' do
       let(:args) { ['-g'] }
@@ -275,14 +417,14 @@
 
   describe 'verbose?' do
     context 'when args includes -v' do
-      let(:args) { ['-v'] }
+      let(:args) { ['-v', 'personal'] }
       it 'returns true' do
         expect(options.verbose?).to be true
       end
     end
 
     context 'when args includes --verbose' do
-      let(:args) { ['--verbose'] }
+      let(:args) { ['--verbose', 'personal'] }
       it 'returns true' do
         expect(options.verbose?).to be true
       end

spec/lib/git_switch/switcher_spec.rb

@@ -168,6 +168,14 @@
       end
     end
 
+    context 'in version mode' do
+      let(:switcher) { GitSwitch::Switcher.new(['-v']) }
+      it 'calls print_version' do
+        expect(switcher).to receive(:print_version)
+        switcher.run
+      end
+    end
+
     context 'in set mode' do
       let(:switcher) { GitSwitch::Switcher.new(['personal']) }
       let(:options) { switcher.options }
@@ -258,7 +266,7 @@
     let(:switcher) { GitSwitch::Switcher.new([]) }
     let(:expected_output) do
       <<~USAGE
-      usage: git switch [-l | --list] [-c | --config]
+      usage: git switch [-c | --config] [-l | --list] [-v | --version]
                         <profile> [-v | --verbose] [-g | --global]
 
       configure profiles
@@ -275,6 +283,9 @@
 
       see available profiles
           git switch -l
+
+      view installed gem version
+          git switch -v
       USAGE
     end
 
@@ -283,6 +294,15 @@
     end
   end
 
+  describe '#print_version' do
+    let(:switcher) { GitSwitch::Switcher.new(['-v']) }
+    let(:expected_output) { "#{GitSwitch::VERSION}\n" }
+
+    it 'outputs usage details' do
+      expect{switcher.print_version}.to output(expected_output).to_stdout
+    end
+  end
+
   describe 'git_repo?' do
     let(:switcher) { GitSwitch::Switcher.new(['personal']) }
     context 'when GitHelper returns true' do