Revision 346b54dbc92bb3c928d326da9d8addf5eb50acce authored by Elia Pinto on 16 April 2014, 17:29:49 UTC, committed by Junio C Hamano on 17 April 2014, 18:14:59 UTC
The Git CodingGuidelines prefer the $(...) construct for command substitution instead of using the backquotes `...`. The backquoted form is the traditional method for command substitution, and is supported by POSIX. However, all but the simplest uses become complicated quickly. In particular, embedded command substitutions and/or the use of double quotes require careful escaping with the backslash character. The patch was generated by: for _f in $(find . -name "*.sh") do sed -i 's@`\(.*\)`@$(\1)@g' ${_f} done and then carefully proof-read. Signed-off-by: Elia Pinto <gitter.spiros@gmail.com> Reviewed-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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git-sh-setup.txt
git-sh-setup(1)
===============
NAME
----
git-sh-setup - Common Git shell script setup code
SYNOPSIS
--------
[verse]
'. "$(git --exec-path)/git-sh-setup"'
DESCRIPTION
-----------
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
---------
die::
exit after emitting the supplied error message to the
standard error stream.
usage::
die with the usage message.
set_reflog_action::
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.
git_editor::
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.
is_bare_repository::
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).
cd_to_toplevel::
runs chdir to the toplevel of the working tree.
require_work_tree::
checks if the current directory is within the working tree
of the repository, and otherwise dies.
require_work_tree_exists::
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."
----------------
get_author_ident_from_commit::
outputs code for use with eval to set the GIT_AUTHOR_NAME,
GIT_AUTHOR_EMAIL and GIT_AUTHOR_DATE variables for a given commit.
create_virtual_base::
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
---
Part of the linkgit:git[1] suite
Computing file changes ...