gecko/testing/sisyphus/bin/create-directory.sh

#!/bin/bash -e
# -*- Mode: Shell-script; tab-width: 4; indent-tabs-mode: nil; -*-
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# Version: MPL 1.1/GPL 2.0/LGPL 2.1
#
# The contents of this file are subject to the Mozilla Public License Version
# 1.1 (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
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# The Original Code is mozilla.org code.
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# The Initial Developer of the Original Code is
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#  Bob Clary <bob@bclary.com>
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source $TEST_DIR/bin/library.sh

#
# options processing
#
options="d:n"
function usage()
{
    cat <<EOF
usage: 
$SCRIPT -d directory [-n] 

-d directory    directory to be created.
-n              never prompt when removing existing directory.

Attempts to safely create an empty directory. If -n is not
specified, the script will prompt before deleting any files 
or directories. If -n is specified, it will not prompt.

The safety measures include refusing to run if run by user
root and by refusing to create directories unless there are 
a subdirectory of /tmp or have at least two ancestor 
directories... /grandparent/parent/child.

******************** WARNING ********************
This script will destroy existing directories and
their contents. It can potentially wipe out your
disk. Use with caution.
******************** WARNING ********************

EOF
    exit 1
}

unset directory

rmopt="-i"

while getopts $options optname ; 
  do 
  case $optname in
      d) directory=$OPTARG;;
      n) unset rmopt;;
  esac
done

if [[ -z $directory ]]
    then
    usage
fi

if [[ `whoami` == "root" ]]; then
    error "can not be run as root" $LINENO
fi

# get the cannonical name directory name
mkdir -p "$directory"
if ! pushd "$directory" > /dev/null ; then 
    error "$directory is not accessible" $LINENO
fi
directory=`pwd`
popd > /dev/null

if [[ "$directory" == "/" ]]; then
    error "directory $directory can not be root" $LINENO
fi

parent=`dirname "$directory"`
grandparent=`dirname "$parent"`

if [[ "$parent" != "/tmp" && ( "$parent" == "/" || "$grandparent" == "/" ) ]]; then
    error "directory $directory can not be a subdirectory of $parent" $LINENO
fi


# clean the directory if requested
rm -fR $rmopt $directory
mkdir -p "$directory"