1git-replace(1) 2============== 3 4NAME 5---- 6git-replace - Create, list, delete refs to replace objects 7 8SYNOPSIS 9-------- 10[verse] 11'git replace' [-f] <object> <replacement> 12'git replace' -d <object>... 13'git replace' -l [<pattern>] 14 15DESCRIPTION 16----------- 17Adds a 'replace' reference in `refs/replace/` namespace. 18 19The name of the 'replace' reference is the SHA1 of the object that is 20replaced. The content of the 'replace' reference is the SHA1 of the 21replacement object. 22 23Unless `-f` is given, the 'replace' reference must not yet exist. 24 25Replacement references will be used by default by all git commands 26except those doing reachability traversal (prune, pack transfer and 27fsck). 28 29It is possible to disable use of replacement references for any 30command using the `--no-replace-objects` option just after 'git'. 31 32For example if commit 'foo' has been replaced by commit 'bar': 33 34------------------------------------------------ 35$ git --no-replace-objects cat-file commit foo 36------------------------------------------------ 37 38shows information about commit 'foo', while: 39 40------------------------------------------------ 41$ git cat-file commit foo 42------------------------------------------------ 43 44shows information about commit 'bar'. 45 46The 'GIT_NO_REPLACE_OBJECTS' environment variable can be set to 47achieve the same effect as the `--no-replace-objects` option. 48 49OPTIONS 50------- 51-f:: 52 If an existing replace ref for the same object exists, it will 53 be overwritten (instead of failing). 54 55-d:: 56 Delete existing replace refs for the given objects. 57 58-l <pattern>:: 59 List replace refs for objects that match the given pattern (or 60 all if no pattern is given). 61 Typing "git replace" without arguments, also lists all replace 62 refs. 63 64BUGS 65---- 66Comparing blobs or trees that have been replaced with those that 67replace them will not work properly. And using `git reset --hard` to 68go back to a replaced commit will move the branch to the replacement 69commit instead of the replaced commit. 70 71There may be other problems when using 'git rev-list' related to 72pending objects. And of course things may break if an object of one 73type is replaced by an object of another type (for example a blob 74replaced by a commit). 75 76SEE ALSO 77-------- 78linkgit:git-tag[1] 79linkgit:git-branch[1] 80linkgit:git[1] 81 82GIT 83--- 84Part of the linkgit:git[1] suite