Findex

Findex is a command line file indexing tool. It performs full text indexing with Xapian as Backend and allows a great deal of customization via a simple DSL.

$ gem install xapian-findex

• xapian-core
• libmagic

$ findex index [path]

$ findex search [path] -- some xapian search query

The following prefixes are available by default:

• date - the mtime of the document (allows value range queries
• path - the relative path of the file

Findex will add a directory .findex in the indexed path. This directory contains the database and a config.rb file. This way you can move your indexed directory to another location without affecting the index. This also simplifies backups.

You can customize the behavior of the index by editing config.rb.

Below are the available options for Findex with their defaults. It should give you an idea how to change them to fit your needs.

indexer.config do |config|
    config.stem_language = 'none'
end

Findex uses libmagic to determine the mimetypes of files to be indexed. To configure special handling for pdf files you could add the following to your config.rb:

indexer.on('application/pdf') do |file, index|
  metadata = `pdfinfo "#{file}"`.lines.map { |l| l.chomp.split(/:\s+/) }.to_h
  index[:title] = metadata["Title"]
  index[:author] = metadata["Author"]
  index << `pdf2text "#{file}" -`
end

An example search query:

$ findex search path/to/my/library -- author:'Jules Verne'

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Bug reports and pull requests are welcome on GitHub at https://github.com/jreinert/findex.