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https://github.com/moparisthebest/android.moparisthebest.org
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6a964fec8f
- Static Gist embeds show titles and link to the Gist - Stylesheets refactored to remove !important and references to Gist classes - Renamed links for include code - Removed sometimes incorrect title attribute on code snippet links
109 lines
3.5 KiB
Ruby
109 lines
3.5 KiB
Ruby
# Title: Include Code Tag for Jekyll
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# Author: Brandon Mathis http://brandonmathis.com
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# Description: Import files on your filesystem into any blog post as embedded code snippets with syntax highlighting and a download link.
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# Configuration: You can set default import path in _config.yml (defaults to code_dir: downloads/code)
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#
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# Syntax {% include_code path/to/file %}
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#
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# Example 1:
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# {% include_code javascripts/test.js %}
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#
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# This will import test.js from source/downloads/code/javascripts/test.js
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# and output the contents in a syntax highlighted code block inside a figure,
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# with a figcaption listing the file name and download link
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#
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# Example 2:
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# You can also include an optional title for the <figcaption>
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#
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# {% include_code javascripts/test.js Example 2 %}
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#
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# will output a figcaption with the title: Example 2 (test.js)
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#
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require './plugins/pygments_code'
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require 'pathname'
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module Jekyll
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class IncludeCodeTag < Liquid::Tag
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include HighlightCode
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def initialize(tag_name, markup, tokens)
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@file = nil
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@title = nil
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@title_old = nil
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@lang = get_lang(markup)
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markup = replace_lang(markup)
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@linenos = get_linenos(markup)
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markup = replace_linenos(markup)
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@marks = get_marks(markup)
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markup = replace_marks(markup)
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@start = get_start(markup)
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markup = replace_start(markup)
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@end = get_end(markup)
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markup = replace_end(markup)
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range = get_range(markup, @start, @end)
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@start = range[:start]
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@end = range[:end]
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markup = replace_range(markup)
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if markup.strip =~ /(^\S*\.\S+) *(.+)?/i
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@file = $1
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@title = $2 || nil
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elsif markup.strip =~ /(.*?)(\S*\.\S+)\Z/i # Title before file is deprecated in 2.1
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@title_old = $1 || nil
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@file = $2
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end
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super
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end
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def render(context)
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code_dir = (context.registers[:site].config['code_dir'].sub(/^\//,'') || 'downloads/code')
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code_path = (Pathname.new(context.registers[:site].source) + code_dir).expand_path
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file = code_path + @file
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unless @title_old.nil?
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@title = @title_old
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puts "### ------------ WARNING ------------ ###"
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puts "This include_code syntax is deprecated "
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puts "Correct syntax: path/to/file.ext [title]"
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puts "Update include for #{file}"
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puts "### --------------------------------- ###"
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end
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if File.symlink?(code_path)
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puts "Code directory '#{code_path}' cannot be a symlink"
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return "Code directory '#{code_path}' cannot be a symlink"
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end
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unless file.file?
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puts "File #{file} could not be found"
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return "File #{file} could not be found"
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end
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Dir.chdir(code_path) do
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code = file.read
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length = code.lines.count
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@end ||= length
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return "#{file} is #{length} lines long, cannot begin at line #{@start}" if @start > length
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return "#{file} is #{length} lines long, cannot read beyond line #{@end}" if @end > length
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if @start > 1 or @end < length
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code = code.split(/\n/).slice(@start -1, @end + 1 - @start).join("\n")
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end
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@lang = file.extname.sub('.','') unless @lang
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title = @title ? "#{@title} (#{file.basename})" : file.basename
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url = "/#{code_dir}/#{@file}"
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highlight(code, @lang, {caption: title, url: url, anchor: 'view raw', start: @start, marks: @marks, linenos: @linenos })
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end
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end
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end
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end
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Liquid::Template.register_tag('include_code', Jekyll::IncludeCodeTag)
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