Class: Pakman::LiquidTemplater

Inherits:
Object
  • Object
show all
Includes:
LogUtils::Logging
Defined in:
lib/pakman/liquid/templater.rb

Constant Summary collapse

EXTS =

check these file extensions for processing

processing (w/ liquid) if front matter header found / present

['html', 'svg',
'js',   'json',
'css',
'txt',  'text',
'md',   'markdown']
REGEX_EXT =

convert html to .html$ (e.g. match end-of-string and leading dot)

e.g.  /\.(html|svg|...)$|/ etc.

Regexp.new( "\\.(#{EXTS.join('|')})$", Regexp::IGNORECASE )

Instance Method Summary collapse

Instance Method Details

#merge_pak(manifestsrc, pakpath, binding, name) ⇒ Object

rename binding/hash to assigns or something more specific - why? why not?



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# File 'lib/pakman/liquid/templater.rb', line 27

def merge_pak( manifestsrc, pakpath, binding, name )

  start = Time.now

  pakname = Pakman.pakname_from_file( manifestsrc )

  puts "Merging template pack '#{pakname}'"

  # todo: rename to load_file once depreated API got removed
  manifest = Manifest.load_file_v2( manifestsrc )

  manifest.each do |entry|
    dest   = entry[0]
    source = entry[1]

    if dest =~ /__file__/   # replace w/ name
      dest = dest.gsub( '__file__', name )
    end

    # get full (absolute) path and make sure path exists
    destfull = File.expand_path( dest, pakpath )
    destpath = File.dirname( destfull )
    FileUtils.makedirs( destpath ) unless File.directory?( destpath )

    logger.debug "destfull=>#{destfull}<"
    logger.debug "destpath=>#{destpath}<"

    ###
    # note:
    #  use jekyll convention for now
    #   check if file starts with front matter (yaml block)
    #   if yes, process (with liquid) otherwise copy as is 1:1

    ####
    # note: for now only check files with known source extensions!!!
    #   do NOT check binaries (e.g. gif, png, ico, etc. -- regex will fail w/ encoding error)
    #    todo/check:  check how jekyll works e.g. does jekyll check binaries for front-matter etc. ????

    is_source_page = REGEX_EXT.match( source )   # note: returns nil or MatchData - do NOT use check == false or true (will NOT work)

    if is_source_page.nil?
      puts "    No (pre-)processing for '#{source}' (copy 1:1) - no matching (known) source extension e.g. #{EXTS.join('|')}"
      source_page = nil
    else
      source_page = Page.from_file( source )
    end

    if source_page && source_page.headers?
      puts "  Bingo! Front matter (e.g. ---) found. Merging template to #{dest}..."

      out = File.new( destfull, 'w+:utf-8' )     ## note: use utf8
      ## note: only pass along contents (not headers e.g. front matter for now)
      ##  (auto-)add front matter headers as page.[xxx] - why? why not??
      out << LiquidTemplate.from_string( source_page.contents ).render( binding )
      out.flush
      out.close
    else
      puts "  Copying to #{dest} from #{source}..."

      FileUtils.copy( source, destfull )
    end
  end # each entry in manifest

  puts "Done (in #{Time.now-start} s)."
end