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pry--pry/lib/pry/commands/cat.rb
Conrad Irwin dd5e2511f3 Use _pry_.pager instead of Pry::Pager
This is not a concern for backward compatibility as it was introduced
since the last release
2014-05-01 01:51:02 -07:00

62 lines
2.3 KiB
Ruby

class Pry
class Command::Cat < Pry::ClassCommand
require 'pry/commands/cat/abstract_formatter.rb'
require 'pry/commands/cat/input_expression_formatter.rb'
require 'pry/commands/cat/exception_formatter.rb'
require 'pry/commands/cat/file_formatter.rb'
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 = case
when opts.present?(:ex)
ExceptionFormatter.new(_pry_.last_exception, _pry_, opts).format
when opts.present?(:in)
InputExpressionFormatter.new(_pry_.input_array, opts).format
else
FileFormatter.new(args.first, _pry_, opts).format
end
_pry_.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 { |f|
next if File.directory?(f)
f.sub!(path + '/', '')
}
end
end
end
Pry::Commands.add_command(Pry::Command::Cat)
end