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Converts Wordpress .html to Markdown .md file
# Converts Wordpress .html to Markdown .md file
# usage:
# ruby ./wordpress-html-to-md.rb "_posts/post.html"
# ruby ./wordpress-html-to-md.rb "_posts"
# requires:
# gem install reverse_markdown
require 'fileutils'
require 'reverse_markdown'
# default config
source = "_posts"
if ARGV.length > 0
source = ARGV[0]
end
# define functions
def open_file_content(file)
puts "Open '#{file}'"
fh = open file
content = fh.read
fh.close
return content
end
# usage: `puts convert_html_to_markdown("<b>be bold</b>")`
def convert_html_to_markdown(html, default_frontmatter="")
# check for Front Matter markdown in HTML
pattern = /(---.*---)(.*)/m
htmlcontent = html
frontmatter = default_frontmatter
matches = html.match(pattern)
if matches && matches.length == 3
puts "Front matter detected..."
frontmatter = matches[1]
htmlcontent = matches[2]
#puts "#{frontmatter}\n#{htmlcontent}"
end
puts "Convert HTML to markdown..."
markdown = ReverseMarkdown.convert(htmlcontent, github_flavored: true)
puts "Converted HTML to markdown"
# puts markdown.inspect
if frontmatter.length > 1
return "#{frontmatter}\n#{markdown}"
else
return markdown
end
end
def save_file_content(sourceFile, content, ext="md", deleteSourceFile=false)
destFile = "#{File.dirname(sourceFile)}/#{File.basename(sourceFile,'.*')}.#{ext}"
puts "Write to file: '#{destFile}'"
File.write(destFile, content)
if deleteSourceFile
FileUtils.remove_file(sourceFile)
end
end
def convert_html_file_to_md(sourceFile)
# read file
content = open_file_content(sourceFile)
# convert content to markdown
markdown = convert_html_to_markdown(content, "---\nlayout: post\n---")
# save file as md. Note: change the deleteSourceFile arg to true to delete the html source file
save_file_content(sourceFile, markdown, "md", false)
end
# script start
if File.directory?(source)
sourceFilter = "#{source}**/*.html"
# process all html files in directory
i = 0
Dir.glob(sourceFilter) do |f|
convert_html_file_to_md(f)
i += 1
end
puts "#{i} html files converted."
elsif File.file?(source)
convert_html_file_to_md(source)
else
puts "File not found '#{source}'"
end
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