Repository clone

A Repository clone is a concept from distributed revision control which represents the cloning of a remote repository to a local copy.

A clone operation is performed when a developer wants to start working on an existing project.

Usage by DVCSs

A few tools have a clone command: monotone (mtn), Mercurial (hg), git, and Bazaar (an alias for branch). SVK calls it mirror.

Revision control software

Years, where available, indicate the date of first stable release. Systems with names in italics are no longer maintained or have planned end-of-life dates.

Local only

Free/open-source	SCCS (1972) RCS (1982)

Proprietary	PVCS (1985)

Client-server

Free/open-source	CVS (1990) CVSNT (1998) Subversion (2004)

Proprietary	Software Change Manager (1970s) ClearCase (1992) CMVC (1994) Visual SourceSafe (1994) Perforce (1995) StarTeam (1995) MKS Integrity (2001) AccuRev SCM (2002) SourceAnywhere (2003) SourceGear Vault (2003) Team Foundation Server (2005) Rational Team Concert (2008)

Distributed

Free/open-source	GNU arch (2001) Darcs (2002) DCVS (2002) SVK (2003) Monotone (2003) Codeville (2005) Git (2005) Mercurial (2005) Bazaar (2005) Fossil (2007) Veracity (2011)

Proprietary	TeamWare (1990s?) Code Co-op (1997) BitKeeper (1998) Plastic SCM (2006)

Concepts

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