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3e1e7624aa
We used the approxidate() parser for "--expire=<timestamp>" options of various commands, but it is better to treat --expire=all and --expire=now a bit more specially than using the current timestamp. Update "git gc" and "git reflog" with a new parsing function for expiry dates. * jc/prune-all: prune: introduce OPT_EXPIRY_DATE() and use it api-parse-options.txt: document "no-" for non-boolean options git-gc.txt, git-reflog.txt: document new expiry options date.c: add parse_expiry_date()
102 lines
3.4 KiB
Plaintext
102 lines
3.4 KiB
Plaintext
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' <subcommand> <options>
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DESCRIPTION
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-----------
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The command takes various subcommands, and different options
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depending on the subcommand:
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[verse]
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'git reflog expire' [--dry-run] [--stale-fix] [--verbose]
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[--expire=<time>] [--expire-unreachable=<time>] [--all] <refs>...
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'git reflog delete' ref@\{specifier\}...
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'git reflog' ['show'] [log-options] [<ref>]
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Reflog is a mechanism to record when the tip of branches are
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updated. This command is to manage the information recorded in it.
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The subcommand "expire" is used to prune older reflog entries.
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Entries older than `expire` time, or entries older than
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`expire-unreachable` time and not reachable from the current
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tip, are removed from the reflog. This is typically not used
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directly by the end users -- instead, see linkgit:git-gc[1].
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The subcommand "show" (which is also the default, in the absence of any
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subcommands) will take all the normal log options, and show the log of
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the reference provided in the command-line (or `HEAD`, by default).
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The reflog will cover all recent actions (HEAD reflog records branch switching
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as well). It is an alias for `git log -g --abbrev-commit --pretty=oneline`;
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see linkgit:git-log[1].
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The reflog is useful in various Git commands, to specify the old value
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of a reference. For example, `HEAD@{2}` means "where HEAD used to be
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two moves ago", `master@{one.week.ago}` means "where master used to
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point to one week ago", and so on. See linkgit:gitrevisions[7] for
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more details.
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To delete single entries from the reflog, use the subcommand "delete"
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and specify the _exact_ entry (e.g. "`git reflog delete master@{2}`").
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OPTIONS
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-------
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--stale-fix::
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This revamps the logic -- the definition of "broken commit"
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becomes: a commit that is not reachable from any of the refs and
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there is a missing object among the commit, tree, or blob
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objects reachable from it that is not reachable from any of the
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refs.
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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'. Fortunately, once this is run, we
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should not have to ever worry about missing objects, because the current
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prune and pack-objects know about reflogs and protect objects referred by
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them.
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--expire=<time>::
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Entries older than this time are pruned. Without the
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option it is taken from configuration `gc.reflogExpire`,
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which in turn defaults to 90 days. --expire=all prunes
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entries regardless of their age; --expire=never turns off
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pruning of reachable entries (but see --expire-unreachable).
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--expire-unreachable=<time>::
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Entries older than this time and not reachable from
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the current tip of the branch are pruned. Without the
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option it is taken from configuration
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`gc.reflogExpireUnreachable`, which in turn defaults to
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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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--all::
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Instead of listing <refs> explicitly, prune all refs.
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--updateref::
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Update the ref with the sha1 of the top reflog entry (i.e.
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<ref>@\{0\}) after expiring or deleting.
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--rewrite::
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While expiring or deleting, adjust each reflog entry to ensure
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that the `old` sha1 field points to the `new` sha1 field of the
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previous entry.
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--verbose::
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Print extra information on screen.
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GIT
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---
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Part of the linkgit:git[1] suite
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