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HTML rendering created 2025-09-06 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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NAME | SYNOPSIS | DESCRIPTION | SYNTAX | NOTES | EXAMPLES | SEE ALSO | GIT | COLOPHON |
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GITMAILMAP(5) Git Manual GITMAILMAP(5)
gitmailmap - Map author/committer names and/or E-Mail addresses
$GIT_WORK_TREE/.mailmap
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.
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 <[email protected]>
The more complex forms are:
<[email protected]> <[email protected]>
which allows mailmap to replace only the email part of a commit,
and:
Proper Name <[email protected]> <[email protected]>
which allows mailmap to replace both the name and the email of a
commit matching the specified commit email address, and:
Proper Name <[email protected]> Commit Name <[email protected]>
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 <[email protected]> above:
Proper Name <[email protected]> CoMmIt NaMe <[email protected]>
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.
Your history contains commits by two authors, Jane and Joe, whose
names appear in the repository under several forms:
Joe Developer <[email protected]>
Joe R. Developer <[email protected]>
Jane Doe <[email protected]>
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 <[email protected]>
Jane Doe <[email protected]>
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 <[email protected]>
Jane Doe <[email protected]> <jane@laptop.(none)>
Jane Doe <[email protected]> <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 <[email protected]>
Jane <[email protected]>
A full .mailmap file which also handles those cases (an addition
of two lines to the above example) would be:
Joe R. Developer <[email protected]>
Jane Doe <[email protected]> <jane@laptop.(none)>
Jane Doe <[email protected]> <jane@desktop.(none)>
Joe R. Developer <[email protected]> Joe <[email protected]>
Jane Doe <[email protected]> Jane <[email protected]>
git-check-mailmap(1)
Part of the git(1) suite
This page is part of the git (Git distributed version control
system) project. Information about the project can be found at
⟨http://git-scm.com/⟩. If you have a bug report for this manual
page, see ⟨http://git-scm.com/community⟩. This page was obtained
from the project's upstream Git repository
⟨https://github.com/git/git.git⟩ on 2025-08-11. (At that time,
the date of the most recent commit that was found in the
repository was 2025-08-07.) If you discover any rendering
problems in this HTML version of the page, or you believe there is
a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
[email protected]
Git 2.51.0.rc1 2025-08-07 GITMAILMAP(5)
Pages that refer to this page: git(1), git-blame(1), git-check-mailmap(1), git-config(1), git-for-each-ref(1), git-help(1), git-send-email(1), git-shortlog(1)
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HTML rendering created 2025-09-06 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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