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 2.43.5 05/31/2024 GITMAILMAP(5)