# This little script allows you to see the current state
# of your version-controlled project.
# At the right side of the prompt various status information
# can be shown:
#  - Projectname (directory name)
#  - Incoming changes (y/n)
#  - Outgoing changes (y/n)
#  - Uncommited changes (y/n)
#
# Using the VCSNOREMOTE environment variable there will
# be no internet access (and no information whether there
# are incoming/outgoing changes available).
#
# The scripts are tailored towards Mercurial, but should
# be easy enough to adapt to other VCSs.
#
# The information is updated every 60 seconds (and shown after
# a new prompt had to be drawn), or if a directory is changed.
#
# License: do what you want with it

export PERIOD=60 

chpwd() { 
  RPROMPT=$(updatePrompt)
}

periodic() {
  RPROMPT=$(updatePrompt)
}

updatePrompt() {
  if [ ! -e "`hg root`/.vcspromptignore" ]
  then
    VCSstatus="$(incomingVCS)$(outgoingVCS)$(commitVCS)"
    if [ ! -z $VCSstatus ]
    then
      VCSrootHlpr=`hg root`
      VCSroot=$VCSrootHlpr:t
      echo "$VCSroot: $VCSstatus"
      return
    fi
  fi
}

incomingVCS() {
  if [ -z "$VCSNOREMOTE" ]
  then
    hg incoming -q >> /dev/null 2>&1
    if [ $? -eq 0 ]
    then
      echo "I"
      return
    fi
  fi
}

outgoingVCS() {
  if [ -z "$VCSNOREMOTE" ]
  then
    hg outgoing -q >> /dev/null 2>&1
    if [ $? -eq 0 ]
    then
      echo "O"
      return
    fi
  fi
}

commitVCS() {
  if [ ! -z `hg st -q 2> /dev/null` ]
  then
    echo "U"
    return
  fi
}