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Reflog is a mechanism to record when the tip of branches are updated.
This command is to manage the information recorded in it.
The subcommand "expire" is used to prune older reflog entries. Entries
] older than expire time, or entries older than expire-unreachable time
and not reachable from the current tip, are removed from the reflog.
This is typically not used directly by the end users — instead, see
git-gc(1).
The subcommand "show" (which is also the default, in the absence of any
subcommands) will take all the normal log options, and show the log of
the reference provided in the command-line (or HEAD, by default). The
reflog will cover all recent actions (HEAD reflog records branch
switching as well). It is an alias for git log -g abbrev-commit
pretty=oneline; see git-log(1).
The reflog is useful in various Git commands, to specify the old value
of a reference. For example, HEAD@{2} means "where HEAD used to be two
moves ago", master@{one.week.ago} means "where master used to point to
one week ago", and so on. See gitrevisions(7) for more details.
To delete single entries from the reflog, use the subcommand "delete"
and specify the exact entry (e.g. "git reflog delete master@{2}").
OPTIONS
stale-fix
This revamps the logic — the definition of "broken commit" becomes:
a commit that is not reachable from any of the refs and there is a
missing object among the commit, tree, or blob objects reachable
from it that is not reachable from any of the refs.
This computation involves traversing all the reachable objects,
i.e. it has the same cost as git prune. Fortunately, once this is
run, we should not have to ever worry about missing objects,
because the current prune and pack-objects know about reflogs and
protect objects referred by them.
expire=
Entries older than this time are pruned. Without the option it is
taken from configuration gc.reflogExpire, which in turn defaults to
90 days.
expire-unreachable=
Entries older than this time and not reachable from the current tip
of the branch are pruned. Without the option it is taken from
configuration gc.reflogExpireUnreachable, which in turn defaults to
30 days.
all
Instead of listing explicitly, prune all refs.
updateref
Update the ref with the sha1 of the top reflog entry (i.e.
[@{0}) after expiring or deleting.
rewrite
While expiring or deleting, adjust each reflog entry to ensure that
the old sha1 field points to the new sha1 field of the previous
entry.
verbose
Print extra information on screen.
GIT
Part of the git(1) suite
]Git 1.8.3.1 11/02/2018 GIT-REFLOG(1)