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pry--pry/lib/pry/commands/edit.rb
2012-08-11 18:27:26 -07:00

138 lines
4.3 KiB
Ruby

class Pry
Pry::Commands.create_command "edit" do
group 'Editing'
description "Invoke the default editor on a file."
banner <<-BANNER
Usage: edit [--no-reload|--reload] [--line LINE] [--temp|--ex|FILE[:LINE]|--in N]
Open a text editor. When no FILE is given, edits the pry input buffer.
Ensure Pry.config.editor is set to your editor of choice.
e.g: `edit sample.rb`
e.g: `edit sample.rb --line 105`
e.g: `edit --ex`
https://github.com/pry/pry/wiki/Editor-integration#wiki-Edit_command
BANNER
def options(opt)
opt.on :e, :ex, "Open the file that raised the most recent exception (_ex_.file)", :optional_argument => true, :as => Integer
opt.on :i, :in, "Open a temporary file containing the Nth input expression. N may be a range.", :optional_argument => true, :as => Range, :default => -1..-1
opt.on :t, :temp, "Open an empty temporary file"
opt.on :l, :line, "Jump to this line in the opened file", :argument => true, :as => Integer
opt.on :n, :"no-reload", "Don't automatically reload the edited code"
opt.on :c, :"current", "Open the current __FILE__ and at __LINE__ (as returned by `whereami`)."
opt.on :r, :reload, "Reload the edited code immediately (default for ruby files)"
end
def process
if [opts.present?(:ex), opts.present?(:temp), opts.present?(:in), !args.empty?].count(true) > 1
raise CommandError, "Only one of --ex, --temp, --in and FILE may be specified."
end
if !opts.present?(:ex) && !opts.present?(:current) && args.empty?
# edit of local code, eval'd within pry.
process_local_edit
else
# edit of remote code, eval'd at top-level
process_remote_edit
end
end
def process_i
case opts[:i]
when Range
(_pry_.input_array[opts[:i]] || []).join
when Fixnum
_pry_.input_array[opts[:i]] || ""
else
return output.puts "Not a valid range: #{opts[:i]}"
end
end
def process_local_edit
content = case
when opts.present?(:temp)
""
when opts.present?(:in)
process_i
when eval_string.strip != ""
eval_string
else
_pry_.input_array.reverse_each.find{ |x| x && x.strip != "" } || ""
end
line = content.lines.count
temp_file do |f|
f.puts(content)
f.flush
reload = !opts.present?(:'no-reload') && !Pry.config.disable_auto_reload
f.close(false)
invoke_editor(f.path, line, reload)
if reload
silence_warnings do
eval_string.replace(File.read(f.path))
end
end
end
end
def process_remote_edit
if opts.present?(:ex)
if _pry_.last_exception.nil?
raise CommandError, "No exception found."
end
ex = _pry_.last_exception
bt_index = opts[:ex].to_i
ex_file, ex_line = ex.bt_source_location_for(bt_index)
if ex_file && RbxPath.is_core_path?(ex_file)
file_name = RbxPath.convert_path_to_full(ex_file)
else
file_name = ex_file
end
line = ex_line
if file_name.nil?
raise CommandError, "Exception has no associated file."
end
if Pry.eval_path == file_name
raise CommandError, "Cannot edit exceptions raised in REPL."
end
elsif opts.present?(:current)
file_name = target.eval("__FILE__")
line = target.eval("__LINE__")
else
# break up into file:line
file_name = File.expand_path(args.first)
line = file_name.sub!(/:(\d+)$/, "") ? $1.to_i : 1
end
if not_a_real_file?(file_name)
raise CommandError, "#{file_name} is not a valid file name, cannot edit!"
end
line = opts[:l].to_i if opts.present?(:line)
reload = opts.present?(:reload) || ((opts.present?(:ex) || file_name.end_with?(".rb")) && !opts.present?(:'no-reload')) && !Pry.config.disable_auto_reload
# Sanitize blanks.
sanitized_file_name = Shellwords.escape(file_name)
invoke_editor(sanitized_file_name, line, reload)
set_file_and_dir_locals(sanitized_file_name)
if reload
silence_warnings do
TOPLEVEL_BINDING.eval(File.read(file_name), file_name)
end
end
end
end
end