1git-reflog(1) 2============= 3 4NAME 5---- 6git-reflog - Manage reflog information 7 8 9SYNOPSIS 10-------- 11'git reflog' <subcommand> <options> 12 13DESCRIPTION 14----------- 15The command takes various subcommands, and different options 16depending on the subcommand: 17 18[verse] 19'git reflog expire' [--dry-run] [--stale-fix] [--verbose] 20 [--expire=<time>] [--expire-unreachable=<time>] [--all] <refs>... 21+ 22'git reflog delete' ref@\{specifier\}... 23+ 24'git reflog' ['show'] [log-options] [<ref>] 25 26Reflog is a mechanism to record when the tip of branches are 27updated. This command is to manage the information recorded in it. 28 29The subcommand "expire" is used to prune older reflog entries. 30Entries older than `expire` time, or entries older than 31`expire-unreachable` time and not reachable from the current 32tip, are removed from the reflog. This is typically not used 33directly by the end users -- instead, see linkgit:git-gc[1]. 34 35The subcommand "show" (which is also the default, in the absence of any 36subcommands) will take all the normal log options, and show the log of 37the reference provided in the command-line (or `HEAD`, by default). 38The reflog will cover all recent actions (HEAD reflog records branch switching 39as well). It is an alias for `git log -g --abbrev-commit --pretty=oneline`; 40see linkgit:git-log[1]. 41 42The reflog is useful in various git commands, to specify the old value 43of a reference. For example, `HEAD@\{2\}` means "where HEAD used to be 44two moves ago", `master@\{one.week.ago\}` means "where master used to 45point to one week ago", and so on. See linkgit:git-rev-parse[1] for 46more details. 47 48To delete single entries from the reflog, use the subcommand "delete" 49and specify the _exact_ entry (e.g. "`git reflog delete master@\{2\}`"). 50 51 52OPTIONS 53------- 54 55--stale-fix:: 56 This revamps the logic -- the definition of "broken commit" 57 becomes: a commit that is not reachable from any of the refs and 58 there is a missing object among the commit, tree, or blob 59 objects reachable from it that is not reachable from any of the 60 refs. 61+ 62This computation involves traversing all the reachable objects, i.e. it 63has the same cost as 'git-prune'. Fortunately, once this is run, we 64should not have to ever worry about missing objects, because the current 65prune and pack-objects know about reflogs and protect objects referred by 66them. 67 68--expire=<time>:: 69 Entries older than this time are pruned. Without the 70 option it is taken from configuration `gc.reflogExpire`, 71 which in turn defaults to 90 days. 72 73--expire-unreachable=<time>:: 74 Entries older than this time and not reachable from 75 the current tip of the branch are pruned. Without the 76 option it is taken from configuration 77 `gc.reflogExpireUnreachable`, which in turn defaults to 78 30 days. 79 80--all:: 81 Instead of listing <refs> explicitly, prune all refs. 82 83--updateref:: 84 Update the ref with the sha1 of the top reflog entry (i.e. 85 <ref>@\{0\}) after expiring or deleting. 86 87--rewrite:: 88 While expiring or deleting, adjust each reflog entry to ensure 89 that the `old` sha1 field points to the `new` sha1 field of the 90 previous entry. 91 92--verbose:: 93 Print extra information on screen. 94 95Author 96------ 97Written by Junio C Hamano <gitster@pobox.com> 98 99Documentation 100-------------- 101Documentation by Junio C Hamano and the git-list <git@vger.kernel.org>. 102 103GIT 104--- 105Part of the linkgit:git[1] suite