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GITMAILMAP(5) Git Manual GITMAILMAP(5)
NAME
gitmailmap - Map author/committer names and/or E-Mail addresses
SYNOPSIS
$GIT_WORK_TREE/.mailmap
DESCRIPTION
If the file .mailmap exists at the toplevel of the repository, or at the location pointed
to by the mailmap.file or mailmap.blob configuration options (see git-config(1)), it is
used to map author and committer names and email addresses to canonical real names and
email addresses.
SYNTAX
The # character begins a comment to the end of line, blank lines are ignored.
In the simple form, each line in the file consists of the canonical real name of an
author, whitespace, and an email address used in the commit (enclosed by < and >) to map
to the name. For example:
Proper Name <commit AT email.xx>
The more complex forms are:
<proper AT email.xx> <commit AT email.xx>
which allows mailmap to replace only the email part of a commit, and:
Proper Name <proper AT email.xx> <commit AT email.xx>
which allows mailmap to replace both the name and the email of a commit matching the
specified commit email address, and:
Proper Name <proper AT email.xx> Commit Name <commit AT email.xx>
which allows mailmap to replace both the name and the email of a commit matching both the
specified commit name and email address.
Both E-Mails and names are matched case-insensitively. For example this would also match
the Commit Name <commit AT email.xx> above:
Proper Name <proper AT email.xx> CoMmIt NaMe <CoMmIt AT EmAiL.xX>
NOTES
Git does not follow symbolic links when accessing a .mailmap file in the working tree.
This keeps behavior consistent when the file is accessed from the index or a tree versus
from the filesystem.
EXAMPLES
Your history contains commits by two authors, Jane and Joe, whose names appear in the
repository under several forms:
Joe Developer <joe AT example.com>
Joe R. Developer <joe AT example.com>
Jane Doe <jane AT example.com>
Jane Doe <jane@laptop.(none)>
Jane D. <jane@desktop.(none)>
Now suppose that Joe wants his middle name initial used, and Jane prefers her family name
fully spelled out. A .mailmap file to correct the names would look like:
Joe R. Developer <joe AT example.com>
Jane Doe <jane AT example.com>
Jane Doe <jane@desktop.(none)>
Note that there's no need to map the name for <jane@laptop.(none)> to only correct the
names. However, leaving the obviously broken <jane@laptop.(none)> and
<jane@desktop.(none)> E-Mails as-is is usually not what you want. A .mailmap file which
also corrects those is:
Joe R. Developer <joe AT example.com>
Jane Doe <jane AT example.com> <jane@laptop.(none)>
Jane Doe <jane AT example.com> <jane@desktop.(none)>
Finally, let's say that Joe and Jane shared an E-Mail address, but not a name, e.g. by
having these two commits in the history generated by a bug reporting system. I.e. names
appearing in history as:
Joe <bugs AT example.com>
Jane <bugs AT example.com>
A full .mailmap file which also handles those cases (an addition of two lines to the above
example) would be:
Joe R. Developer <joe AT example.com>
Jane Doe <jane AT example.com> <jane@laptop.(none)>
Jane Doe <jane AT example.com> <jane@desktop.(none)>
Joe R. Developer <joe AT example.com> Joe <bugs AT example.com>
Jane Doe <jane AT example.com> Jane <bugs AT example.com>
SEE ALSO
git-check-mailmap(1)
GIT
Part of the git(1) suite
Git 2.34.1 07/09/2025 GITMAILMAP(5)
Generated by $Id: phpMan.php,v 4.55 2007/09/05 04:42:51 chedong Exp $ Author: Che Dong
On Apache
Under GNU General Public License
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