This glossary contains the definition of common terms used in the Software Heritage project.
- a file stored in the archive, identified by its cryptographic hashes (SHA1, "git-like" SHA1, SHA256) and its size
- Cryptographic hash
- (also called Checksum, Digest) a fixed-size "summary" of a stream of bytes, that is easy to compute, and hard to reverse. (Cryptographic hash function Wikipedia article)
- a set of named pointers to files, directories and revisions
- see Cryptographic hash
- (also called Data sources) a location from which a coherent set of sources has been obtained.
- Some examples of origins :
- a revision that has been marked by a project as noteworthy with a specific, usually mnemonic, name (for instance, a version number).
- Some examples of releases :
- a git tag with its name
- a tarball with its name
- a Debian source package with its version number.
- a "point in time" snapshot in the development history of a project.
- Some examples of revisions :
- a git commit
- (Secure Hash Algorithm) a family of Cryptographic hashes published by the NIST (SHA Wikipedia article)
- a Version Control System, like git, subversion or mercurial