Difference between revisions of "Glossary"
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This glossary contains the definition of common terms used in the Software Heritage project. | This glossary contains the definition of common terms used in the Software Heritage project. | ||
| + | == C == | ||
; Content | ; Content | ||
| − | : a file stored in the archive. | + | : 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. ([https://en.wikipedia.org/wiki/Cryptographic_hash_function Cryptographic hash function Wikipedia article]) | ||
| + | |||
| + | == D == | ||
; Directory | ; Directory | ||
| + | : a set of named pointers to files, directories and revisions | ||
| + | |||
| + | == H == | ||
| + | |||
| + | ; Hash | ||
| + | : see Cryptographic hash | ||
| + | |||
| + | == O == | ||
| + | |||
| + | ; Origin | ||
| + | : (also called Data sources) a location from which a coherent set of sources has been obtained. | ||
| + | : Some examples of origins : | ||
: | : | ||
| + | :* a [https://github.com/torvalds/linux/ git repository] | ||
| + | :* a [https://www.kernel.org/pub/linux/kernel/v4.x/ directory containing tarballs] | ||
| + | :* the history of a Debian package on [http://snapshot.debian.org/package/linux/ snapshot.debian.org]. | ||
| − | + | == P == | |
| − | |||
; Project | ; Project | ||
: | : | ||
| + | |||
| + | == R == | ||
; Release | ; Release | ||
| + | : 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. | ||
; Revision | ; Revision | ||
| + | : a "point in time" snapshot in the development history of a project. | ||
| + | : Some examples of revisions : | ||
: | : | ||
| + | :* a git commit | ||
| + | |||
| + | == S == | ||
| + | |||
| + | ; SHA | ||
| + | : (Secure Hash Algorithm) a family of Cryptographic hashes published by the NIST ([https://en.wikipedia.org/wiki/Secure_Hash_Algorithm SHA Wikipedia article]) | ||
| + | |||
| + | == V == | ||
; VCS | ; VCS | ||
| − | : a Version Control System, like git, | + | : a Version Control System, like git, subversion or mercurial |
Revision as of 15:18, 10 June 2016
This glossary contains the definition of common terms used in the Software Heritage project.
C
- Content
- 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)
D
- Directory
- a set of named pointers to files, directories and revisions
H
- Hash
- see Cryptographic hash
O
- Origin
- (also called Data sources) a location from which a coherent set of sources has been obtained.
- Some examples of origins :
-
- a git repository
- a directory containing tarballs
- the history of a Debian package on snapshot.debian.org.
P
- Project
R
- Release
- 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.
- Revision
- a "point in time" snapshot in the development history of a project.
- Some examples of revisions :
-
- a git commit
S
- SHA
- (Secure Hash Algorithm) a family of Cryptographic hashes published by the NIST (SHA Wikipedia article)
V
- VCS
- a Version Control System, like git, subversion or mercurial