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Merge branch 'ps/reflog-migrate-fixes' into maint-2.51
"git refs migrate" to migrate the reflog entries from a refs backend to another had a handful of bugs squashed. * ps/reflog-migrate-fixes: refs: fix invalid old object IDs when migrating reflogs refs: stop unsetting REF_HAVE_OLD for log-only updates refs/files: detect race when generating reflog entry for HEAD refs: fix identity for migrated reflogs ident: fix type of string length parameter builtin/reflog: implement subcommand to write new entries refs: export `ref_transaction_update_reflog()` builtin/reflog: improve grouping of subcommands Documentation/git-reflog: convert to use synopsis type
This commit is contained in:
Junio C Hamano
@@ -8,16 +8,17 @@ 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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[synopsis]
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git reflog [show] [<log-options>] [<ref>]
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git reflog list
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git reflog exists <ref>
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git reflog write <ref> <old-oid> <new-oid> <message>
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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 drop [--all [--single-worktree] | <refs>...]
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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 drop' [--all [--single-worktree] | <refs>...]
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'git reflog exists' <ref>
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DESCRIPTION
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-----------
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@@ -43,11 +44,15 @@ actions, and in addition the `HEAD` reflog records branch switching.
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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 "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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The "write" subcommand writes a single entry to the reflog of a given
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reference. This new entry is appended to the reflog and will thus become
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the most recent entry. The reference name must be fully qualified. Both the old
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and new object IDs must not be abbreviated and must point to existing objects.
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The reflog message gets normalized.
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The "delete" subcommand deletes single entries from the reflog, but
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not the reflog itself. Its argument must be an _exact_ entry (e.g. "`git
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@@ -58,9 +63,11 @@ The "drop" subcommand completely removes the reflog for the specified
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references. This is in contrast to "expire" and "delete", both of which
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can be used to delete reflog entries, but not the reflog itself.
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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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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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OPTIONS
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-------
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@@ -71,65 +78,6 @@ Options for `show`
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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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@@ -140,14 +88,74 @@ used with `expire`.
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Options for `drop`
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~~~~~~~~~~~~~~~~~~
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--all::
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`--all`::
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Drop the reflogs of all references from all worktrees.
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--single-worktree::
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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 dropped. This option limits the processing to reflogs
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from the current working tree only.
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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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GIT
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---
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Part of the linkgit:git[1] suite
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