-def arv_edit client, arvados, global_opts, remaining_opts
- n = remaining_opts.shift
- if n.nil? or n == "-h" or n == "--help"
- puts head_banner
- puts "Usage: arv edit [uuid] [fields...]\n\n"
- puts "Fetch the specified Arvados object, select the specified fields, \n"
- puts "open an interactive text editor on a text representation (json or\n"
- puts "yaml, use --format) and then update the object. Will use 'nano'\n"
- puts "by default, customize with the EDITOR or VISUAL environment variable.\n"
- exit 255
+def command_exists?(command)
+ File.executable?(command) || ENV['PATH'].split(':').any? {|folder| File.executable?(File.join(folder, command))}
+end
+
+def run_editor path
+ pid = Process::fork
+ if pid.nil?
+ editor = nil
+ [ENV["VISUAL"], ENV["EDITOR"], "nano", "vi"].each do |e|
+ editor ||= e if e and command_exists? e
+ end
+ if editor.nil?
+ abort "Could not find any editor to use, please set $VISUAL or $EDITOR to your desired editor."
+ end
+ exec editor, path
+ else
+ Process.wait pid
+ end
+
+ if $?.exitstatus != 0
+ raise "Editor exited with status #{$?.exitstatus}"
+ end
+end
+
+def edit_and_commit_object initial_obj, tmp_stem, global_opts, &block
+
+ content = get_obj_content initial_obj, global_opts
+
+ tmp_file = Tempfile.new([tmp_stem, ".#{global_opts[:format]}"])
+ tmp_file.write(content)
+ tmp_file.close
+
+ begin
+ error_text = ''
+ while true
+ begin
+ run_editor tmp_file.path
+
+ tmp_file.open
+ newcontent = tmp_file.read()
+ tmp_file.close
+
+ # Strip lines starting with '#'
+ newcontent = newcontent.lines.select {|l| !l.start_with? '#'}.join
+
+ # Load the new object
+ newobj = case global_opts[:format]
+ when 'json'
+ Oj.load(newcontent)
+ when 'yaml'
+ YAML.load(newcontent)
+ else
+ abort "Unrecognized format #{global_opts[:format]}"
+ end
+
+ yield newobj
+
+ break
+ rescue => e
+ can_retry = true
+ if e.is_a? Psych::SyntaxError
+ this_error = "YAML error parsing your input: #{e}"
+ elsif e.is_a? JSON::ParserError or e.is_a? Oj::ParseError
+ this_error = "JSON error parsing your input: #{e}"
+ elsif e.is_a? ArvadosAPIError
+ this_error = "API responded with error #{e}"
+ else
+ this_error = "#{e.class}: #{e}"
+ can_retry = false
+ end
+ puts this_error
+
+ tmp_file.open
+ newcontent = tmp_file.read()
+ tmp_file.close
+
+ if newcontent == error_text or not can_retry
+ FileUtils::cp tmp_file.path, tmp_file.path + ".saved"
+ puts "File is unchanged, edit aborted." if can_retry
+ abort "Saved contents to " + tmp_file.path + ".saved"
+ else
+ tmp_file.open
+ tmp_file.truncate 0
+ error_text = this_error.to_s.lines.map {|l| '# ' + l}.join + "\n"
+ error_text += "# Please fix the error and try again.\n"
+ error_text += newcontent.lines.select {|l| !l.start_with? '#'}.join
+ tmp_file.write error_text
+ tmp_file.close
+ end
+ end
+ end
+ ensure
+ tmp_file.close(true)
+ end
+
+ nil
+end
+
+class ArvadosAPIError < RuntimeError
+end
+
+def check_response result
+ begin
+ results = JSON.parse result.body
+ rescue JSON::ParserError, Oj::ParseError => e
+ raise "Failed to parse server response:\n" + e.to_s