Java Environment by project

prompt_command

#!/bin/sh
#
# To enable this, add the following line to your ´.bashrc`:
#     export PROMPT_COMMAND="source $HOME/bin/prompt_command"                         
#
# The variable `PROMPT_COMMAND` is used to execute some bash code
# before any prompt.  
# If you need different environments for different projects and have
# your projects grouped with a main directory like the following:
#
#     ~/workspace/clientA/projectA1
#     ~/workspace/clientA/projectA2
#     ~/workspace/clientA/projectA..
#     ~/workspace/clientB/projectB1
#     ~/workspace/clientB/projectB2
#     ~/workspace/clientB/projectB..
#
# This script will identify the client-part of the URL and check for
# different files if they exist and link them to the default-path.
# For example if you change in the directory `~/workspace/clientA`
# and there is a directory `~/.git-clientA`, it will link `~/.git` to
# this directory. If there's no specific directory it will link the
# directory `~/.git-default`.  
# You can also setup some environments by adding a `setenv.sh`-script
# to the clients directory (like `~/workspace/clientA/setenv.sh`).
PROJECT_DIR=$HOME/workspace

PROJECT=`pwd | sed -e "s#${PROJECT_DIR}##" | cut -d '/' -f 2`
if [ -n "$PROJECT" ]; then
  if [ -z "$PREV_PROJECT" ] || [ "$PREV_PROJECT" != "$PROJECT" ]; then
    PREV_PROJECT="$PROJECT"
    if [ -d "$HOME/.git-$PROJECT" ]; then
      echo "configure git to $PROJECT"
      ln -snf "$HOME/.git-$PROJECT" "$HOME/.git"
    else
      echo "configure git to default"
      ln -snf "$HOME/.git-default" "$HOME/.git"
    fi
    if [ -d "$HOME/.m2/settings-$PROJECT.xml" ]; then
      echo "configure maven to $PROJECT"
      ln -snf "$HOME/.m2/settings-$PROJECT.xml" "$HOME/.m2/settings.xml"
    else
      echo "configure maven to default"
      ln -snf "$HOME/.m2/settings-default.xml" "$HOME/.m2/settings.xml"
    fi
    if [ -x "$HOME/Projects/$PROJECT/setenv.sh" ]; then
      echo "set env for $PROJECT"
      source "$HOME/Projects/$PROJECT/setenv.sh"
    fi
  fi
fi