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