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