cheatsheets/git-revisions.md

title
Git revisions

Single commits

• commits:

  • dae68e1 (sha1)

• refs:

  • HEAD (ref)
  • master (branch)
  • v1.0.0 (tag)
  • origin/master (aka, refs/remotes/origin/master)
  • heads/master
  • refs/heads/master

• search back:

  • master@{yesterday}
  • master@{2} (2nd prior value)
  • master@{push} (where master would push to)
  • master^ (parent)
  • master^2 (2nd parent, eg, what it merged)
  • master~5 (5 parents back)
  • master^0 (this commit; disambiguates from tags)
  • v0.99.8^{tag} (can be commit, tag, tree, object)
  • v0.99.8^{} (defaults to {tag})
  • :/fix bug (searches commit messages)

• other:

  • HEAD:README
  • 0:README (0 to 3)

Ranges

• master (reachable parents from master)
• ^master (exclude reachable parents from master)
• master..fix (reachable from fix but not master)
• master...fix (reachable from fix and master, but not both)
• HEAD^@ (parents of HEAD)
• HEAD^! (HEAD, then excluding parents's ancestors)

Ranges illustration

 F   - master
 E C - fix
 D B
 |-'
 A

master..fix   = BC
master...fix  = BC and FED