Add bin and edit workflow

bin/gems/pry-0.15.2/lib/pry/commands/cat.rb

@@ -0,0 +1,70 @@
+# frozen_string_literal: true
+
+class Pry
+  class Command
+    class Cat < Pry::ClassCommand
+      match 'cat'
+      group 'Input and Output'
+      description "Show code from a file, Pry's input buffer, or the last exception."
+
+      banner <<-'BANNER'
+        Usage: cat FILE
+               cat --ex [STACK_INDEX]
+               cat --in [INPUT_INDEX_OR_RANGE]
+
+        `cat` is capable of showing part or all of a source file, the context of the
+        last exception, or an expression from Pry's input history.
+
+        `cat --ex` defaults to showing the lines surrounding the location of the last
+        exception. Invoking it more than once travels up the exception's backtrace, and
+        providing a number shows the context of the given index of the backtrace.
+      BANNER
+
+      def options(opt)
+        opt.on :ex, "Show the context of the last exception",
+               optional_argument: true, as: Integer
+        opt.on :i, :in, "Show one or more entries from Pry's expression history",
+               optional_argument: true, as: Range, default: -5..-1
+        opt.on :s, :start, "Starting line (defaults to the first line)",
+               optional_argument: true, as: Integer
+        opt.on :e, :end, "Ending line (defaults to the last line)",
+               optional_argument: true, as: Integer
+        opt.on :l, :'line-numbers', "Show line numbers"
+        opt.on :t, :type, "The file type for syntax highlighting " \
+                          "(e.g., 'ruby' or 'python')",
+               argument: true, as: Symbol
+      end
+
+      def process
+        output =
+          if opts.present?(:ex)
+            ExceptionFormatter.new(
+              pry_instance.last_exception, pry_instance, opts
+            ).format
+          elsif opts.present?(:in)
+            InputExpressionFormatter.new(pry_instance.input_ring, opts).format
+          else
+            FileFormatter.new(args.first, pry_instance, opts).format
+          end
+
+        pry_instance.pager.page output
+      end
+
+      def complete(search)
+        super | load_path_completions
+      end
+
+      def load_path_completions
+        $LOAD_PATH.flat_map do |path|
+          Dir[path + '/**/*'].map do |f|
+            next if File.directory?(f)
+
+            f.sub!(path + '/', '')
+          end
+        end
+      end
+    end
+
+    Pry::Commands.add_command(Pry::Command::Cat)
+  end
+end