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 'git-sh-setup'
  11
  12 DESCRIPTION
  13 -----------
  14
  15 This is not a command the end user would want to run.  Ever.
  16 This documentation is meant for people who are studying the
  17 Porcelain-ish scripts and/or are writing new ones.
  18
  19 The `git-sh-setup` scriptlet is designed to be sourced (using
  20 `.`) by other shell scripts to set up some variables pointing at
  21 the normal git directories and a few helper shell functions.
  22
  23 Before sourcing it, your script should set up a few variables;
  24 `USAGE` (and `LONG_USAGE`, if any) is used to define message
  25 given by `usage()` shell function.  `SUBDIRECTORY_OK` can be set
  26 if the script can run from a subdirectory of the working tree
  27 (some commands do not).
  28
  29 The scriptlet sets `GIT_DIR` and `GIT_OBJECT_DIRECTORY` shell
  30 variables, but does *not* export them to the environment.
  31
  32 FUNCTIONS
  33 ---------
  34
  35 die::
  36         exit after emitting the supplied error message to the
  37         standard error stream.
  38
  39 usage::
  40         die with the usage message.
  41
  42 set_reflog_action::
  43         set the message that will be recorded to describe the
  44         end-user action in the reflog, when the script updates a
  45         ref.
  46
  47 git_editor::
  48         runs an editor of user's choice (GIT_EDITOR, core.editor, VISUAL or
  49         EDITOR) on a given file, but error out if no editor is specified
  50         and the terminal is dumb.
  51
  52 is_bare_repository::
  53         outputs `true` or `false` to the standard output stream
  54         to indicate if the repository is a bare repository
  55         (i.e. without an associated working tree).
  56
  57 cd_to_toplevel::
  58         runs chdir to the toplevel of the working tree.
  59
  60 require_work_tree::
  61         checks if the repository is a bare repository, and dies
  62         if so.  Used by scripts that require working tree
  63         (e.g. `checkout`).
  64
  65 get_author_ident_from_commit::
  66         outputs code for use with eval to set the GIT_AUTHOR_NAME,
  67         GIT_AUTHOR_EMAIL and GIT_AUTHOR_DATE variables for a given commit.
  68
  69
  70 Author
  71 ------
  72 Written by Linus Torvalds <torvalds@osdl.org>
  73
  74 Documentation
  75 --------------
  76 Documentation by Junio C Hamano and the git-list <git@vger.kernel.org>.
  77
  78 GIT
  79 ---
  80 Part of the linkgit:git[7] suite