rippled Source

Some of these directories come from entire outside repositories brought in using [git-subtree][]. This means that the source files are inserted directly into the rippled repository. They can be edited and committed just as if they were normal files. [git-subtree]: https://github.com/apenwarr/git-subtree

If you create a commit that contains files both from a subtree, and from the rippled source tree, please use care when designing the commit message, since it will appear in the subtree's individual repository when the changes are pushed back to the upstream. Better yet, do not mix files from subtrees and ripple in the same commit at all.

Source folders:

Folder	Upstream Repo	Description
beast	N/A	legacy utility code that was formerly associated with boost::beast
ed25519-donna	https://github.com/floodyberry/ed25519-donna	Ed25519 digital signatures
ripple	N/A	Core source code for rippled
secp256k1	https://github.com/bitcoin-core/secp256k1	ECDSA digital signatures using the secp256k1 curve
test	N/A	Unit tests for rippled

The following dependencies are downloaded and built using ExternalProject (or FetchContent, where possible). Refer to CMakeLists.txt file for details about how these sources are built :

Name	Upstream Repo	Description
lz4	https://github.com/lz4/lz4	LZ4 lossless compression algorithm
nudb	https://github.com/vinniefalco/NuDB	Constant-time insert-only key/value database for SSD drives (Less memory usage than RocksDB.)
snappy	https://github.com/google/snappy	"Snappy" lossless compression algorithm.
soci	https://github.com/SOCI/soci	Abstraction layer for database access.
sqlite	https://www.sqlite.org/src	An embedded database engine that writes to simple files.
rocksdb	https://github.com/facebook/rocksdb	Fast key/value database. (Supports rotational disks better than NuDB.)
protobuf	https://github.com/google/protobuf	Protocol buffer data interchange format. Only downloaded/built if a suitable version is not found by find_package, or if the local_protobuf option is explicitly set