diff --git a/gitstatus_pre-1.7.10.sh b/gitstatus_pre-1.7.10.sh
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+#!/bin/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
+
+gitsym=`git symbolic-ref HEAD`
+
+# if "fatal: Not a git repo .., then exit
+case "$gitsym" in fatal*) exit 0 ;; esac
+
+# the current branch is the tail end of the symbolic reference
+branch="${gitsym##refs/heads/}"    # get the basename after "refs/heads/"
+
+gitstatus=`git diff --name-status 2>&1`
+
+# if the diff is fatal, exit now
+case "$gitstatus" in fatal*) exit 0 ;; esac
+
+
+staged_files=`git diff --staged --name-status`
+
+num_changed=$(( `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 $(git rev-parse --show-cdup) | wc -l`
+if [[ "$__GIT_PROMPT_IGNORE_STASH" = "1" ]]; then
+  num_stashed=0
+else
+  num_stashed=`git stash list | wc -l`
+fi
+
+clean=0
+if (( num_changed == 0 && num_staged == 0 && num_U == 0 && num_untracked == 0 && num_stashed == 0 )) ; then
+  clean=1
+fi
+
+remote=
+
+if [[ -z "$branch" ]]; then
+  tag=`git describe --exact-match`
+  if [[ -n "$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/${merge_name##refs/heads/}"
+  fi
+
+  # detect if the local branch have a remote tracking branch
+  cmd_output=$(git rev-parse --abbrev-ref ${branch}@{upstream} 2>&1 >/dev/null)
+
+  if [[ $? == 0 ]]; then
+    has_remote_tracking=1
+  else
+    has_remote_tracking=0
+  fi
+
+  # get the revision list, and count the leading "<" and ">"
+  revgit=`git rev-list --left-right ${remote_ref}...HEAD`
+  num_revs=`all_lines "$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
+
+if [[ -z "$remote" ]] ; then
+  remote='.'
+fi
+
+if [[ "$has_remote_tracking" == "0" ]] ; then
+  remote='_NO_REMOTE_TRACKING_'
+fi
+
+for w in "$branch" "$remote" $num_staged $num_conflicts $num_changed $num_untracked $num_stashed $clean ; do
+  echo "$w"
+done
+
+exit