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misc-thomas/dotfiles/.bash-git-prompt/gitstatus_pre-1.7.10.sh

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#!/usr/bin/env bash
# -*- coding: UTF-8 -*-
# gitstatus.sh -- produce the current git repo status on STDOUT
# Functionally equivalent to 'gitstatus.py', but written in bash (not python).
#
# Alan K. Stebbens <aks@stebbens.org> [http://github.com/aks]
# helper functions
count_lines() { echo "${1}" | egrep -c "^${2}" ; }
all_lines() { echo "${1}" | grep -v "^$" | wc -l ; }
if [[ -z "${__GIT_PROMPT_DIR-}" ]]; then
SOURCE="${BASH_SOURCE[0]}"
while [[ -h "${SOURCE}" ]]; do
DIR="$( cd -P "$( dirname "${SOURCE}" )" && pwd )"
SOURCE="$(readlink "${SOURCE}")"
[[ "${SOURCE}" != /* ]] && SOURCE="${DIR}/${SOURCE}"
done
__GIT_PROMPT_DIR="$( cd -P "$( dirname "${SOURCE}" )" && pwd )"
fi
if [[ "${__GIT_PROMPT_WITH_USERNAME_AND_REPO}" == "1" ]]; then
# returns "user/repo" from remote.origin.url git variable
#
# supports urls:
# https://user@bitbucket.org/user/repo.git
# https://github.com/user/repo.git
# git@github.com:user/repo.git
#
remote_url=$(git config --get remote.origin.url | sed 's|^.*//||; s/.*@//; s/[^:/]\+[:/]//; s/.git$//')
else
remote_url='.'
fi
gitsym=$( git symbolic-ref HEAD 2>/dev/null )
#If exit status OK, we have a branch
if [[ "${?}" == 0 ]]; then
# the current branch is the tail end of the symbolic reference
branch="${gitsym##refs/heads/}" # get the basename after "refs/heads/"
fi
gitstatus=$( git diff --name-status 2>&1 )
# if the diff is fatal, exit now
if [[ "${?}" != 0 ]]; then exit 0; fi
staged_files=$( git diff --staged --name-status )
num_changed=$(( $( all_lines "${gitstatus}" ) - $( count_lines "${gitstatus}" U ) ))
num_conflicts=$( count_lines "${staged_files}" U )
num_staged=$(( $( all_lines "${staged_files}" ) - num_conflicts ))
num_untracked=$( git ls-files --others --exclude-standard $(git rev-parse --show-cdup) | wc -l )
num_stashed=0
if [[ "${__GIT_PROMPT_IGNORE_STASH}" != "1" ]]; then
stash_file="$( git rev-parse --git-dir )/logs/refs/stash"
if [[ -e "${stash_file}" ]]; then
while IFS='' read -r wcline || [[ -n "${wcline}" ]]; do
((num_stashed++))
done < "${stash_file}"
fi
fi
clean=0
if (( num_changed == 0 && num_staged == 0 && num_untracked == 0 && num_stashed == 0 && num_conflicts == 0 )) ; then
clean=1
fi
remote=""
upstream=""
if [[ -z "${branch-}" ]]; then
tag=$( git describe --tags --exact-match 2>/dev/null )
if [[ -n "${tag}" ]]; then
branch="${tag}"
else
branch="_PREHASH_$( git rev-parse --short HEAD )"
fi
else
remote_name=$( git config "branch.${branch}.remote" )
if [[ -n "$remote_name" ]]; then
merge_name=$( git config "branch.${branch}.merge" )
else
remote_name='origin'
merge_name="refs/heads/${branch}"
fi
if [[ "${remote_name}" == '.' ]]; then
remote_ref="${merge_name}"
else
remote_ref="refs/remotes/${remote_name}/${merge_name##refs/heads/}"
fi
# detect if the local branch have a remote tracking branch
upstream=$( git rev-parse --abbrev-ref "${branch}"@{upstream} 2>&1 )
if [[ "${?}" == 0 ]]; then
# get the revision list, and count the leading "<" and ">"
revgit=$( git rev-list --left-right "${remote_ref}...HEAD" 2>/dev/null )
if [[ "${?}" == 0 ]]; then
num_revs=$( all_lines "${revgit}" )
num_ahead=$( count_lines "${revgit}" "^>" )
num_behind=$(( num_revs - num_ahead ))
if (( num_behind > 0 )) ; then
remote="${remote}_BEHIND_${num_behind}"
fi
if (( num_ahead > 0 )) ; then
remote="${remote}_AHEAD_${num_ahead}"
fi
fi
else
remote='_NO_REMOTE_TRACKING_'
remote_url='.'
unset upstream
fi
fi
if [[ -z "${remote:+x}" ]] ; then
remote='.'
fi
if [[ -z "${upstream:+x}" ]] ; then
upstream='^'
fi
printf "%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n" \
"${branch}" \
"${remote}" \
"${remote_url}" \
"${upstream}" \
"${num_staged}" \
"${num_conflicts}" \
"${num_changed}" \
"${num_untracked// /}" \
"${num_stashed}" \
"${clean}"
exit