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# 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
|
