1GIT-REPLACE(1)                    Git Manual                    GIT-REPLACE(1)
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NAME

6       git-replace - Create, list, delete refs to replace objects
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SYNOPSIS

9       git replace [-f] <object> <replacement>
10       git replace [-f] --edit <object>
11       git replace [-f] --graft <commit> [<parent>...]
12       git replace [-f] --convert-graft-file
13       git replace -d <object>...
14       git replace [--format=<format>] [-l [<pattern>]]
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DESCRIPTION

18       Adds a replace reference in refs/replace/ namespace.
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20       The name of the replace reference is the SHA-1 of the object that is
21       replaced. The content of the replace reference is the SHA-1 of the
22       replacement object.
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24       The replaced object and the replacement object must be of the same
25       type. This restriction can be bypassed using -f.
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27       Unless -f is given, the replace reference must not yet exist.
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29       There is no other restriction on the replaced and replacement objects.
30       Merge commits can be replaced by non-merge commits and vice versa.
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32       Replacement references will be used by default by all Git commands
33       except those doing reachability traversal (prune, pack transfer and
34       fsck).
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36       It is possible to disable use of replacement references for any command
37       using the --no-replace-objects option just after git.
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39       For example if commit foo has been replaced by commit bar:
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41           $ git --no-replace-objects cat-file commit foo
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44       shows information about commit foo, while:
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46           $ git cat-file commit foo
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49       shows information about commit bar.
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51       The GIT_NO_REPLACE_OBJECTS environment variable can be set to achieve
52       the same effect as the --no-replace-objects option.
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OPTIONS

55       -f, --force
56           If an existing replace ref for the same object exists, it will be
57           overwritten (instead of failing).
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59       -d, --delete
60           Delete existing replace refs for the given objects.
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62       --edit <object>
63           Edit an object’s content interactively. The existing content for
64           <object> is pretty-printed into a temporary file, an editor is
65           launched on the file, and the result is parsed to create a new
66           object of the same type as <object>. A replacement ref is then
67           created to replace <object> with the newly created object. See git-
68           var(1) for details about how the editor will be chosen.
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70       --raw
71           When editing, provide the raw object contents rather than
72           pretty-printed ones. Currently this only affects trees, which will
73           be shown in their binary form. This is harder to work with, but can
74           help when repairing a tree that is so corrupted it cannot be
75           pretty-printed. Note that you may need to configure your editor to
76           cleanly read and write binary data.
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78       --graft <commit> [<parent>...]
79           Create a graft commit. A new commit is created with the same
80           content as <commit> except that its parents will be [<parent>...]
81           instead of <commit>'s parents. A replacement ref is then created to
82           replace <commit> with the newly created commit. Use
83           --convert-graft-file to convert a $GIT_DIR/info/grafts file and use
84           replace refs instead.
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86       --convert-graft-file
87           Creates graft commits for all entries in $GIT_DIR/info/grafts and
88           deletes that file upon success. The purpose is to help users with
89           transitioning off of the now-deprecated graft file.
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91       -l <pattern>, --list <pattern>
92           List replace refs for objects that match the given pattern (or all
93           if no pattern is given). Typing "git replace" without arguments,
94           also lists all replace refs.
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96       --format=<format>
97           When listing, use the specified <format>, which can be one of
98           short, medium and long. When omitted, the format defaults to short.
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FORMATS

101       The following format are available:
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103       ·   short: <replaced sha1>
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105       ·   medium: <replaced sha1> → <replacement sha1>
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107       ·   long: <replaced sha1> (<replaced type>) → <replacement sha1>
108           (<replacement type>)
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CREATING REPLACEMENT OBJECTS

111       git-filter-branch(1), git-hash-object(1) and git-rebase(1), among other
112       git commands, can be used to create replacement objects from existing
113       objects. The --edit option can also be used with git replace to create
114       a replacement object by editing an existing object.
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116       If you want to replace many blobs, trees or commits that are part of a
117       string of commits, you may just want to create a replacement string of
118       commits and then only replace the commit at the tip of the target
119       string of commits with the commit at the tip of the replacement string
120       of commits.
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BUGS

123       Comparing blobs or trees that have been replaced with those that
124       replace them will not work properly. And using git reset --hard to go
125       back to a replaced commit will move the branch to the replacement
126       commit instead of the replaced commit.
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128       There may be other problems when using git rev-list related to pending
129       objects.
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SEE ALSO

132       git-hash-object(1) git-filter-branch(1) git-rebase(1) git-tag(1) git-
133       branch(1) git-commit(1) git-var(1) git(1)
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GIT

136       Part of the git(1) suite
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140Git 2.21.0                        02/24/2019                    GIT-REPLACE(1)
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