Plain ruby implementation of the LMDB dump format.
Install the gem and add to the application's Gemfile by executing:
bundle add lmdb_dump
If bundler is not being used to manage dependencies, install the gem by executing:
gem install lmdb_dump
require "lmdb"
require "lmdb_dump"
# create a backup of the environment
File.open("path/to/backup", "w") do |file|
LMDB.new("path/to/env") do |env|
LmdbDump.dump(env, file, format: FORMAT_BYTE)
end
end
# Iterate over backup
File.open("path/to/backup", "r") do |file|
dump = LmdbDump::Deserializer.new(file)
dump.each do |dump_db|
puts "Values for DB #{dump_db.name}"
dump_db.entries do |k, v|
puts " #{k} => #{v}"
end
end
end
mdb_dump
/mdb_load
prior to version 0.9.25 had a bug escaping backslashes in printable content.LmdbDump
does not support this bug. For best compatibility do not use themdb_dump
s-p
flag and the (default)FORMAT_BYTE
format inLmdbDump
.
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 the created tag, and push the .gem
file to rubygems.org.
Bug reports and pull requests are welcome on GitHub at https://github.com/fnordfish/lmdb_dump. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the code of conduct.
The gem is available as open source under the terms of the MIT License.
Everyone interacting in the LmdbDump project's codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.