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While the git-reflog(1) command has subcommands to show reflog entries or check for reflog existence, it does not have any subcommands that would allow the user to enumerate all existing reflogs. This makes it quite hard to discover which reflogs a repository has. While this can be worked around with the "files" backend by enumerating files in the ".git/logs" directory, users of the "reftable" backend don't enjoy such a luxury. Introduce a new subcommand `git reflog list` that lists all reflogs the repository knows of to fill this gap. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
138 lines
4.6 KiB
Text
138 lines
4.6 KiB
Text
git-reflog(1)
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=============
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NAME
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----
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git-reflog - Manage reflog information
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SYNOPSIS
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--------
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[verse]
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'git reflog' [show] [<log-options>] [<ref>]
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'git reflog list'
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'git reflog expire' [--expire=<time>] [--expire-unreachable=<time>]
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[--rewrite] [--updateref] [--stale-fix]
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[--dry-run | -n] [--verbose] [--all [--single-worktree] | <refs>...]
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'git reflog delete' [--rewrite] [--updateref]
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[--dry-run | -n] [--verbose] <ref>@{<specifier>}...
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'git reflog exists' <ref>
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DESCRIPTION
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-----------
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This command manages the information recorded in the reflogs.
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Reference logs, or "reflogs", record when the tips of branches and
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other references were updated in the local repository. Reflogs are
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useful in various Git commands, to specify the old value of a
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reference. For example, `HEAD@{2}` means "where HEAD used to be two
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moves ago", `master@{one.week.ago}` means "where master used to point
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to one week ago in this local repository", and so on. See
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linkgit:gitrevisions[7] for more details.
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The command takes various subcommands, and different options
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depending on the subcommand:
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The "show" subcommand (which is also the default, in the absence of
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any subcommands) shows the log of the reference provided in the
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command-line (or `HEAD`, by default). The reflog covers all recent
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actions, and in addition the `HEAD` reflog records branch switching.
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`git reflog show` is an alias for `git log -g --abbrev-commit
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--pretty=oneline`; see linkgit:git-log[1] for more information.
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The "list" subcommand lists all refs which have a corresponding reflog.
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The "expire" subcommand prunes older reflog entries. Entries older
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than `expire` time, or entries older than `expire-unreachable` time
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and not reachable from the current tip, are removed from the reflog.
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This is typically not used directly by end users -- instead, see
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linkgit:git-gc[1].
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The "delete" subcommand deletes single entries from the reflog. Its
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argument must be an _exact_ entry (e.g. "`git reflog delete
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master@{2}`"). This subcommand is also typically not used directly by
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end users.
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The "exists" subcommand checks whether a ref has a reflog. It exits
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with zero status if the reflog exists, and non-zero status if it does
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not.
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OPTIONS
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-------
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Options for `show`
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~~~~~~~~~~~~~~~~~~
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`git reflog show` accepts any of the options accepted by `git log`.
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Options for `expire`
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~~~~~~~~~~~~~~~~~~~~
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--all::
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Process the reflogs of all references.
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--single-worktree::
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By default when `--all` is specified, reflogs from all working
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trees are processed. This option limits the processing to reflogs
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from the current working tree only.
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--expire=<time>::
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Prune entries older than the specified time. If this option is
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not specified, the expiration time is taken from the
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configuration setting `gc.reflogExpire`, which in turn
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defaults to 90 days. `--expire=all` prunes entries regardless
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of their age; `--expire=never` turns off pruning of reachable
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entries (but see `--expire-unreachable`).
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--expire-unreachable=<time>::
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Prune entries older than `<time>` that are not reachable from
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the current tip of the branch. If this option is not
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specified, the expiration time is taken from the configuration
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setting `gc.reflogExpireUnreachable`, which in turn defaults
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to 30 days. `--expire-unreachable=all` prunes unreachable
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entries regardless of their age; `--expire-unreachable=never`
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turns off early pruning of unreachable entries (but see
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`--expire`).
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--updateref::
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Update the reference to the value of the top reflog entry (i.e.
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<ref>@\{0\}) if the previous top entry was pruned. (This
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option is ignored for symbolic references.)
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--rewrite::
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If a reflog entry's predecessor is pruned, adjust its "old"
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SHA-1 to be equal to the "new" SHA-1 field of the entry that
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now precedes it.
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--stale-fix::
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Prune any reflog entries that point to "broken commits". A
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broken commit is a commit that is not reachable from any of
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the reference tips and that refers, directly or indirectly, to
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a missing commit, tree, or blob object.
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+
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This computation involves traversing all the reachable objects, i.e. it
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has the same cost as 'git prune'. It is primarily intended to fix
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corruption caused by garbage collecting using older versions of Git,
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which didn't protect objects referred to by reflogs.
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-n::
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--dry-run::
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Do not actually prune any entries; just show what would have
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been pruned.
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--verbose::
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Print extra information on screen.
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Options for `delete`
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~~~~~~~~~~~~~~~~~~~~
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`git reflog delete` accepts options `--updateref`, `--rewrite`, `-n`,
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`--dry-run`, and `--verbose`, with the same meanings as when they are
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used with `expire`.
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GIT
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---
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Part of the linkgit:git[1] suite
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