SYNOPSIS
--------
[verse]
-'git update-ref' [-m <reason>] (-d <ref> [<oldvalue>] | [--no-deref] [--create-reflog] <ref> <newvalue> [<oldvalue>] | --stdin [-z])
+'git update-ref' [-m <reason>] [--no-deref] (-d <ref> [<oldvalue>] | [--create-reflog] <ref> <newvalue> [<oldvalue>] | --stdin [-z])
DESCRIPTION
-----------
<ref> is updated or deleted atomically, a concurrent reader may
still see a subset of the modifications.
-Logging Updates
+LOGGING UPDATES
---------------
If config parameter "core.logAllRefUpdates" is true and the ref is one under
"refs/heads/", "refs/remotes/", "refs/notes/", or the symbolic ref HEAD; or
symbolic refs before creating the log name) describing the change
in ref value. Log lines are formatted as:
- . oldsha1 SP newsha1 SP committer LF
-+
+ oldsha1 SP newsha1 SP committer LF
+
Where "oldsha1" is the 40 character hexadecimal value previously
stored in <ref>, "newsha1" is the 40 character hexadecimal value of
<newvalue> and "committer" is the committer's name, email address
Optionally with -m:
- . oldsha1 SP newsha1 SP committer TAB message LF
-+
+ oldsha1 SP newsha1 SP committer TAB message LF
+
Where all fields are as described above and "message" is the
value supplied to the -m option.