GIT-SH-SETUP(1)                  Git Manual                  GIT-SH-SETUP(1)

NAME         top

       git-sh-setup - Common Git shell script setup code

SYNOPSIS         top

       . "$(git --exec-path)/git-sh-setup"

DESCRIPTION         top

       This is not a command the end user would want to run. Ever. This
       documentation is meant for people who are studying the Porcelain-ish
       scripts and/or are writing new ones.

       The git sh-setup scriptlet is designed to be sourced (using .) by
       other shell scripts to set up some variables pointing at the normal
       Git directories and a few helper shell functions.

       Before sourcing it, your script should set up a few variables; USAGE
       (and LONG_USAGE, if any) is used to define message given by usage()
       shell function. SUBDIRECTORY_OK can be set if the script can run from
       a subdirectory of the working tree (some commands do not).

       The scriptlet sets GIT_DIR and GIT_OBJECT_DIRECTORY shell variables,
       but does not export them to the environment.

FUNCTIONS         top

           exit after emitting the supplied error message to the standard
           error stream.

           die with the usage message.

           Set GIT_REFLOG_ACTION environment to a given string (typically
           the name of the program) unless it is already set. Whenever the
           script runs a git command that updates refs, a reflog entry is
           created using the value of this string to leave the record of
           what command updated the ref.

           runs an editor of user’s choice (GIT_EDITOR, core.editor, VISUAL
           or EDITOR) on a given file, but error out if no editor is
           specified and the terminal is dumb.

           outputs true or false to the standard output stream to indicate
           if the repository is a bare repository (i.e. without an
           associated working tree).

           runs chdir to the toplevel of the working tree.

           checks if the current directory is within the working tree of the
           repository, and otherwise dies.

           checks if the working tree associated with the repository exists,
           and otherwise dies. Often done before calling cd_to_toplevel,
           which is impossible to do if there is no working tree.

       require_clean_work_tree <action> [<hint>]
           checks that the working tree and index associated with the
           repository have no uncommitted changes to tracked files.
           Otherwise it emits an error message of the form Cannot <action>:
           <reason>. <hint>, and dies. Example:

               require_clean_work_tree rebase "Please commit or stash them."

           outputs code for use with eval to set the GIT_AUTHOR_NAME,
           GIT_AUTHOR_EMAIL and GIT_AUTHOR_DATE variables for a given

           modifies the first file so only lines in common with the second
           file remain. If there is insufficient common material, then the
           first file is left empty. The result is suitable as a virtual
           base input for a 3-way merge.

GIT         top

       Part of the git(1) suite

COLOPHON         top

       This page is part of the git (Git distributed version control system)
       project.  Information about the project can be found at 
       ⟨⟩.  If you have a bug report for this manual page,
       see ⟨⟩.  This page was obtained from the
       project's upstream Git repository ⟨⟩ on
       2018-10-29.  (At that time, the date of the most recent commit that
       was found in the repository was 2018-10-26.)  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

Git           07/16/2016                  GIT-SH-SETUP(1)

Pages that refer to this page: git(1)