Method: Morpheus::Cli::DotFile#export_aliases

Defined in:
lib/morpheus/cli/dot_file.rb

#export_aliases(alias_definitions) ⇒ Object

this saves the source file, upserting alias definitions at the bottom todo: smarter logic to allow the user to put stuff AFTER this section too under the section titled ‘# exported aliases’

Parameters:

  • alias_definitions (Map) —

    Map of alias_name => command_string

Returns:

  • nil



80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
 
# File 'lib/morpheus/cli/dot_file.rb', line 80

def export_aliases(alias_definitions)
  if !@filename
    print "#{Term::ANSIColor.dark}Skipping source file save because filename has not been set#{Term::ANSIColor.reset}\n" if Morpheus::Logging.debug?
    return false
  end
  if !Dir.exist?(File.dirname(@filename))
    FileUtils.mkdir_p(File.dirname(@filename))
  end
  if !File.exist?(@filename)
    print "#{Term::ANSIColor.dark}Initializing source file #{@filename}#{Term::ANSIColor.reset}\n" if Morpheus::Logging.debug?
    FileUtils.touch(@filename)
  else
    print "#{dark} #=> Saving source file #{@filename}#{reset}\n" if Morpheus::Logging.debug?
  end


  config_text = File.read(@filename)
  config_lines = config_text.split(/\n/)
  new_config_lines = []
  existing_alias_definitions = {}
  header_line_index = config_lines.index {|line| line.strip.include?(EXPORTED_ALIASES_HEADER) }
  # JD: there's some bad bug here where it can clear all your aliases!
  # it would be safer to export to another file at .morpheus/aliases or something.
  if header_line_index
    # keep everything before the exported alias section
    new_config_lines = config_lines[0..header_line_index-1]
    existing_alias_lines = config_lines[header_line_index..config_lines.size-1]
    # parse out the existing alias definitions
    existing_alias_lines.each do |line|
      if line =~ /^alias\s+/
        alias_name, command_string = Morpheus::Cli::CliRegistry.parse_alias_definition(line)
        if alias_name.empty? || command_string.empty?
          print "#{dark} #=> removing bad config line #{line_num} invalid alias definition: #{line}\n" if Morpheus::Logging.debug?
        else
          existing_alias_definitions[alias_name] = command_string
        end
      end
    end
  else
    new_config_lines = config_lines
    new_config_lines << "" # blank line before alias header
  end

  # append header line
  new_config_lines << EXPORTED_ALIASES_HEADER
  new_config_lines << "# Do not put anything below here, or it will be lost when aliases are exported"
  #new_config_lines << ""

  # update aliases, sort them, and append the lines
  new_alias_definitions = existing_alias_definitions.merge(alias_definitions)
  new_alias_definitions.keys.sort.each do |alias_name|
    new_config_lines << "alias #{alias_name}='#{new_alias_definitions[alias_name]}'"
  end
  
  # include a blank line after this section
  new_config_lines << ""
  new_config_lines << ""

  new_config_text = new_config_lines.join("\n")
  
  File.open(@filename, 'w') {|f| f.write(new_config_text) }
  return true
end