SYNOPSIS
--------
-'git
-update-ref' [-m <reason>] (-d <ref> [<oldvalue>] | [--no-deref] <ref> <newvalue> [<oldvalue>])
+'git
update-ref' [-m <reason>] (-d <ref> [<oldvalue>] | [--no-deref] <ref> <newvalue> [<oldvalue>])
DESCRIPTION
-----------
Given two arguments, stores the <newvalue> in the <ref>, possibly
-dereferencing the symbolic refs. E.g. `git-update-ref HEAD
+dereferencing the symbolic refs. E.g. `git update-ref HEAD
<newvalue>` updates the current branch head to the new object.
Given three arguments, stores the <newvalue> in the <ref>,
possibly dereferencing the symbolic refs, after verifying that
the current value of the <ref> matches <oldvalue>.
-E.g. `git
-update-ref refs/heads/master <newvalue> <oldvalue>`
+E.g. `git
update-ref refs/heads/master <newvalue> <oldvalue>`
updates the master branch head to <newvalue> only if its current
value is <oldvalue>. You can specify 40 "0" or an empty string
as <oldvalue> to make sure that the ref you are creating does
In general, using
- git-update-ref HEAD "$head"
+ git update-ref HEAD "$head"
should be a _lot_ safer than doing
Logging Updates
---------------
If config parameter "core.logAllRefUpdates" is true or the file
-"$GIT_DIR/logs/<ref>" exists then `git-update-ref` will append
+"$GIT_DIR/logs/<ref>" exists then `git update-ref` will append
a line to the log file "$GIT_DIR/logs/<ref>" (dereferencing all
symbolic refs before creating the log name) describing the change
in ref value. Log lines are formatted as: