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timestamp (621B)

      1 #!/usr/bin/env ruby
      2 
      3 require "date"
      4 
      5 abort "Usage: bin/timestamp [path/to/index.md]" if ARGV.length > 1
      6 ts = DateTime.now.iso8601
      7 
      8 if ARGV.empty?
      9   IO.popen("pbcopy", "w") { |pb| pb.write(ts) }
     10 else
     11   path = ARGV.first
     12   content = File.read(path)
     13   frontmatter = content.match(/\A---\r?\n(.*?)\r?\n---(?:\r?\n|\z)/m)
     14   abort "#{path}: expected YAML frontmatter with one date field" unless frontmatter && frontmatter[1].scan(/^date:[^\r\n]*/).length == 1
     15   updated = frontmatter[0].sub(/^date:[^\r\n]*/, "date: #{ts}")
     16   File.write(path, updated + content[frontmatter[0].length..-1])
     17   puts "Updated #{path}"
     18 end
     19 
     20 puts ts