git_prompt: Update documentation

* The original __git_ps1 function has split from the rest of
  git-completion as of git.git af31a45

* Use the description for GIT_PS1_DESCRIBE_STYLE (added in git.git
  50b03b0) for __fish_git_prompt_describe_style

* Update the description of __fish_git_prompt_showupstream to include
  the meaning of '=' based on git.git f9db192: "Improve the
  description of GIT_PS1_SHOWUPSTREAM"

* Note that the PROMPT_COMMAND versions of the command with extra
  arguments don't work, in case someone used to the bash version is
  looking for it.

* Note that I am updating the script so Kevin Ballard doesn't get
  blamed for anything I break.
This commit is contained in:
Brian Gernhardt 2013-07-02 11:10:15 -04:00
parent d5c1bf98d7
commit 0af49d0533

View file

@ -1,13 +1,14 @@
# based off of the git-completion script that ships with git
# based off of the git-prompt script that ships with git
#
# Written by Kevin Ballard <kevin@sb.org>
# Updated by Brian Gernhardt <brian@gernhardtsoftware.com>
#
# This is heavily based off of the git-completion.bash script that ships with
# This is heavily based off of the git-prompt.bash script that ships with
# git, which is Copyright (C) 2006,2007 Shawn O. Pearce <spearce@spearce.org>.
# The act of porting the code, along with any new code, are Copyright (C) 2012
# Kevin Ballard <kevin@sb.org>.
#
# By virtue of being based on the git-completion.bash script, this script is
# By virtue of being based on the git-prompt.bash script, this script is
# distributed under the GNU General Public License, version 2.0.
#
# This script vends a function __fish_git_prompt which takes a format string,
@ -15,18 +16,14 @@
# function.
#
# The behavior of __fish_git_prompt is very heavily based off of the bash
# script's __fish_git_prompt function. As such, usage and customization is very
# script's __git_ps1 function. As such, usage and customization is very
# similar, although some extra flexibility is provided in this script.
# Due to differences between bash and fish, the PROMPT_COMMAND style where
# passing two or three arguments causes the fucnction to set PS1 is not
# supported.
#
# The argument to __fish_git_prompt will be displayed only if you are currently
# in a git repository. The %s token will be the name of the branch. If HEAD is
# not a branch, it attempts to show the relevant tag. The tag search is
# controlled by the __fish_git_prompt_describe_style variable, with the
# following values:
# default (or unset) Any tag that exactly matches HEAD
# contains Nearest annotated tag that contains HEAD
# branch Nearest tag/branch that contains HEAD
# describe Output of `git describe`
# in a git repository. The %s token will be the name of the branch.
#
# In addition, if you set __fish_git_prompt_showdirtystate to a nonempty value,
# unstaged (*) and staged (+) changes will be shown next to the branch name.
@ -45,20 +42,31 @@
#
# If you would like to see the difference between HEAD and its upstream, set
# __fish_git_prompt_showupstream to 'auto'. A "<" indicates you are behind, ">"
# indicates you are ahead, and "<>" indicates you have diverged. You can
# further control behavior by setting __fish_git_prompt_showupstream to a
# space-separated list of values:
# indicates you are ahead, "<>" indicates you have diverged and "=" indicates
# that there is no difference. You can further control behavior by setting
# __fish_git_prompt_showupstream to a space-separated list of values:
#
# verbose show number of commits head/behind (+/-) upstream
# legacy don't use the '--count' option available in recent versions
# of git-rev-list
# git always compare HEAD to @{upstream}
# svn always compare HEAD to your SVN upstream
#
# By default, __fish_git_prompt will compare HEAD to your SVN upstream if it
# can find one, or @{upstream} otherwise. Once you have set
# __fish_git_prompt_showupstream, you can override it on a per-repository basis
# by setting the bash.showUpstream config variable. As before, this variable
# remains named 'bash' to preserve compatibility.
#
# If you would like to see more information about the identity of commits
# checked out as a detached HEAD, set __fish_git_prompt_describe_style to
# one of the following values:
#
# contains relative to newer annotated tag (v1.6.3.2~35)
# branch relative to newer tag or branch (master~4)
# describe relative to older annotated tag (v1.6.3.1-13-gdd42c2f)
# default exactly matching tag
#
# This fish-compatible version of __fish_git_prompt includes some additional
# features on top of the above-documented bash-compatible features:
#