Documentation/git-sh-setup.txt

   1 git-sh-setup(1)
   2 ===============
   3
   4 NAME
   5 ----
   6 git-sh-setup - Common git shell script setup code
   7
   8 SYNOPSIS
   9 --------
  10 [verse]
  11 '. "$(git --exec-path)/git-sh-setup"'
  12
  13 DESCRIPTION
  14 -----------
  15
  16 This is not a command the end user would want to run.  Ever.
  17 This documentation is meant for people who are studying the
  18 Porcelain-ish scripts and/or are writing new ones.
  19
  20 The 'git sh-setup' scriptlet is designed to be sourced (using
  21 `.`) by other shell scripts to set up some variables pointing at
  22 the normal git directories and a few helper shell functions.
  23
  24 Before sourcing it, your script should set up a few variables;
  25 `USAGE` (and `LONG_USAGE`, if any) is used to define message
  26 given by `usage()` shell function.  `SUBDIRECTORY_OK` can be set
  27 if the script can run from a subdirectory of the working tree
  28 (some commands do not).
  29
  30 The scriptlet sets `GIT_DIR` and `GIT_OBJECT_DIRECTORY` shell
  31 variables, but does *not* export them to the environment.
  32
  33 FUNCTIONS
  34 ---------
  35
  36 die::
  37         exit after emitting the supplied error message to the
  38         standard error stream.
  39
  40 usage::
  41         die with the usage message.
  42
  43 set_reflog_action::
  44         set the message that will be recorded to describe the
  45         end-user action in the reflog, when the script updates a
  46         ref.
  47
  48 git_editor::
  49         runs an editor of user's choice (GIT_EDITOR, core.editor, VISUAL or
  50         EDITOR) on a given file, but error out if no editor is specified
  51         and the terminal is dumb.
  52
  53 is_bare_repository::
  54         outputs `true` or `false` to the standard output stream
  55         to indicate if the repository is a bare repository
  56         (i.e. without an associated working tree).
  57
  58 cd_to_toplevel::
  59         runs chdir to the toplevel of the working tree.
  60
  61 require_work_tree::
  62         checks if the current directory is within the working tree
  63         of the repository, and otherwise dies.
  64
  65 require_work_tree_exists::
  66         checks if the working tree associated with the repository
  67         exists, and otherwise dies.  Often done before calling
  68         cd_to_toplevel, which is impossible to do if there is no
  69         working tree.
  70
  71 get_author_ident_from_commit::
  72         outputs code for use with eval to set the GIT_AUTHOR_NAME,
  73         GIT_AUTHOR_EMAIL and GIT_AUTHOR_DATE variables for a given commit.
  74
  75 GIT
  76 ---
  77 Part of the linkgit:git[1] suite