git-check-mailmap <root
GIT-CHECK-MAILMAP(1)                        Git Manual                       GIT-CHECK-MAILMAP(1)

NAME
       git-check-mailmap - Show canonical names and email addresses of contacts

SYNOPSIS
       git check-mailmap [options] ...

DESCRIPTION
       For each “Name ” or “” from the command-line or standard input (when
       using --stdin), look up the person’s canonical name and email address (see "Mapping
       Authors" below). If found, print them; otherwise print the input as-is.

OPTIONS
       --stdin
           Read contacts, one per line, from the standard input after exhausting contacts
           provided on the command-line.

OUTPUT
       For each contact, a single line is output, terminated by a newline. If the name is
       provided or known to the mailmap, “Name ” is printed; otherwise only
       “” is printed.

MAPPING AUTHORS
       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, it is used to map author and
       committer names and email addresses to canonical real names and email addresses.

       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 

       The more complex forms are:

            

       which allows mailmap to replace only the email part of a commit, and:

           Proper Name  

       which allows mailmap to replace both the name and the email of a commit matching the
       specified commit email address, and:

           Proper Name  Commit Name 

       which allows mailmap to replace both the name and the email of a commit matching both the
       specified commit name and email address.

       Example 1: Your history contains commits by two authors, Jane and Joe, whose names appear
       in the repository under several forms:

           Joe Developer 
           Joe R. Developer 
           Jane Doe 
           Jane Doe 
           Jane D. 

       Now suppose that Joe wants his middle name initial used, and Jane prefers her family name
       fully spelled out. A proper .mailmap file would look like:

           Jane Doe         
           Joe R. Developer 

       Note how there is no need for an entry for , because the real name of
       that author is already correct.

       Example 2: Your repository contains commits from the following authors:

           nick1 
           nick2 
           nick2 
           santa 
           claus 
           CTO 

       Then you might want a .mailmap file that looks like:

                                  
           Some Dude          nick1 
           Other Author    nick2 
           Other Author          
           Santa Claus  

       Use hash # for comments that are either on their own line, or after the email address.

GIT
       Part of the git(1) suite

Git 2.7.4                                   03/23/2016                       GIT-CHECK-MAILMAP(1)

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