geni-git

#!/bin/bash

project=
project_path=
local_dir=
standard_layout=
check_standard=true
svn_repository=https://geni.rintra.net/svn
do=
debug=false

#
# Parse command line args
#
while [ $# -gt 0 ] ; do

  option="$1"
  shift

  case "$option" in
    -d|--debug)
      debug=true
      do=echo
      ;;

    -s)
      standard_layout=-s
      check_standard=false
      ;;

    -*)
      echo "Unknown option $option"
      exit 1;
      ;;

    *)
      if [ -z "$project" ] ; then
        project="$option"
      elif [ -z "$local_dir" ] ; then
        local_dir="$option"
      else
        echo "Too many arguments"
        exit 1
      fi
      ;;
  esac
done

if [ -z "$project" ] ; then
  echo "No project specified"
  exit 1;
fi

# If 'project' contains "://", then split the
# project into 'svn_repository' and 'project'.
if [ "$project" != "${project/*:\/\//}" ] ; then
  protocol="${project/:\/\/*/}"
  server_and_project="${project/*:\/\//}"
  server="${server_and_project%%/*}"
  project="${server_and_project#*/}"
  svn_repository="${protocol}://$server"
fi

full_project="$project"

# If 'project' contains a "/", then assign
# everything after the first "/" to 'project_path',
# and remove the first "/" and everything after
# it from 'project'
if [ "$project" != "${project%%/*}" ] ; then
  project_path="${project#*/}"
  project="${project%%/*}"
fi

if [ -z "$local_dir" ] ; then
  if [ -z "$project_path" ] || [ "$project_path" == "trunk" ] ; then
    local_dir="$project"
    [ -z "$project_path" ] || check_standard=false
  else
    local_dir="$project_path"
    if [ "${local_dir##*/}" == "trunk" ] ; then
      local_dir="${local_dir%/*}"
      check_standard=false
    fi
    local_dir="${local_dir##*/}"
  fi
fi

# Check to see if the project uses a standard repository layout
# i.e., contains a "trunk"
if $check_standard ; then
  echo "# Checking to see if '$svn_repository/$full_project' uses a standard layout."
  svn list "$svn_repository/$full_project/trunk" >/dev/null 2>&1
  if [ $? = 0 ] ; then
    echo "# Yes -- 'trunk' directory exists."
    standard_layout=-s
  else
    echo "# No -- 'trunk' directory not found."
  fi
fi

echo "# Checking out '$svn_repository/$full_project' to '$local_dir' ..."
$do git svn clone $standard_layout "$svn_repository/$full_project" "$local_dir"

$do cd $local_dir
if [ ! -f .gitignore ] ; then
  echo "# Creating a default .gitignore file..."
  $debug || git svn show-ignore > .gitignore
  $debug && echo git svn show-ignore \> .gitignore
  $do git add .gitignore
  $do git commit -m "Commit default .gitignore file."
  $do git svn dcommit
fi

echo "# Done!  Use 'git svn dcommit' to commit changes back"
echo "# to subversion, and 'git svn rebase' to update."