Requirement management based on Git.

req.sh

#!/bin/sh

usage() {
    cat << EOF
usage: req [--version] [--help] <command> [<args>]

The most commonly used req commands are:
  add      Add requirement contents to the index
  new      Create a requirement
  init     Create an empty req repository
  trace    Create a trace to a requirement
  rm       Remove a requirement

See 'req help <command>' for more information on a specific command.
EOF
}

gitwrapper() {
    git --git-dir="`pwd`/.req" --work-tree="`pwd`" $@
}

get_next_requirement_id() {
    # 1. Find all files with a filename of a digit
    # 2. Remove the directory
    # 3. Sort the filenames
    # 4. Get the largest number
    # 5. Increment it
    #local next=`ls | sort | tail -n 1`
    local next=`find -type f -name '[[:digit:]]' | sed 's/\.\///g' | sort | tail -n 1`
    [ "x$next" = "x" ] && next="0" || next="$((next+1))"
    echo $next
}

# Start   Parse command line

OPTS=`getopt -o hv -l help,version -- "$@"`
if [ $? != 0 ]; then
    exit 1
fi

eval set -- "$OPTS"

while true ; do
    case "$1" in
      -v | --version)
        echo "1.0.0"; exit 0;;
      -h | --help)
        usage; shift;;
      --)
        shift; break;;
    esac
done

# End     Parse command line

case "$1" in
  add)
    echo "Not implemented"; exit 1
    ;;
  new)
    shift; echo "$@" > `get_next_requirement_id`
    ;;
  help)
    [ "x$2" = "x" ] && man "$2" || echo "req: '$2' is not a req command. See 'req --help'."
    ;;
  init)
    # Create a Git repository under .req directory
    # Add .req directory to Git's ignore list
    gitwrapper init && echo ".req/" >> "`pwd`/.req/info/exclude"
    ;;
  rm)
    echo "Not implemented"; exit 1
    ;;
  status)
    gitwrapper status
    ;;
  trace)
    echo "Not implemented"; exit 1
    ;;
  *)
    [ "x$1" = "x" ] && usage || echo "req: '$1' is not a req command. See 'req --help'."
    ;;
esac

exit 0