basistest-svn.sh

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#! /bin/bash
##############################################################################
# @file  basistest-svn.sh
# @brief Wrapper script for Subversion svn command.
#
# This script is used as wrapper for the svn command to enable automated
# software testing at our lab. In general, anonymous access to the Subversion
# repositories is not permitted. Only the svnuser is allowed to do so.
# Hence, a wrapper script was implemented which is only readable by the
# svnuser where the password is hard code. Moreover, only the svnuser can
# execute this script. The swtest user on the other side is allowed to run
# this script as svnuser via sudoers list.
#
# Copyright (c) 2011 University of Pennsylvania. All rights reserved.<br />
# See https://www.cbica.upenn.edu/sbia/software/license.html or COPYING file.
#
# Contact: SBIA Group <sbia-software at uphs.upenn.edu>
# @ingroup Tools
##############################################################################


# constants used by the shflags.sh module
HELP_COMMAND='basistest-svn (BASIS)'
HELP_CONTACT='SBIA Group <sbia-software at uphs.upenn.edu>'
HELP_VERSION='version 1.2.3 (revision 2104)'
HELP_COPYRIGHT='Copyright (c) University of Pennsylvania. All rights reserved.
See https://www.rad.upenn.edu/sbia/software/license.html or COPYING file.'


# ----------------------------------------------------------------------------
## @brief Get real path of given file or directory.
#
# @note This function was substituted by BASIS either for the string
#       \@BASIS_BASH_UTILITIES\@ or \@BASIS_BASH_FUNCTION_realpath\@.
#
# Example:
# @code
# exec_dir=`realpath $0`
# @endcode
#
# @param [in] path File or directory path.
#
# @returns Canonical path.
#
# @sa http://stackoverflow.com/questions/7665/how-to-resolve-symbolic-links-in-a-shell-script
function realpath
{
    local path=$1

    local linkdir=''
    local symlink=''

    while [ -h ${path} ]; do
        # 1) change to directory of the symbolic link
        # 2) change to directory where the symbolic link points to
        # 3) get the current working directory
        # 4) append the basename
        linkdir=$(dirname -- "${path}")
        symlink=$(readlink ${path})
        path=$(cd "${linkdir}" && cd $(dirname -- "${symlink}") && pwd)/$(basename -- "${symlink}")
    done

    echo -n "$(cd -P -- "$(dirname "${path}")" && pwd -P)/$(basename -- "${path}")"
}

readonly _SBIA_BASIS_BASISTEST_SVN_DIR="$(dirname -- "$(realpath "$(cd -P -- "$(dirname -- "${BASH_SOURCE}")" && pwd -P)/$(basename -- "$BASH_SOURCE")")")"
source "${_SBIA_BASIS_BASISTEST_SVN_DIR}/../lib/basis.sh" || exit 1


args=()
verbose=0

while [ $# -gt 0 ]; do
    case "$1" in
        --verbose|-v)
            (( verbose++ ))
            ;;

        --help|-h)
            get_executable_name exec_name
            echo "Usage:"
            echo "  ${exec_name} [svn options/arguments]"
            echo "  ${exec_name} [options]"
            echo
            echo "Description:"
            echo "  This command is used as a wrapper for the svn command to enable"
            echo "  automated software testing at SBIA where anonymous Subversion"
            echo "  access is generally not permitted."
            echo
            echo "Options:"
            echo "  --help, -h    Print help and exit."
            echo "  --helpshort   Print short help and exit."
            echo "  --version     Print version information and exit."
            echo
            print_contact
            exit 0
            ;;

        --helpshort)
            get_executable_name exec_name
            echo "Usage:"
            echo "  ${exec_name} [svn options/arguments]"
            echo "  ${exec_name} [options]"
            echo
            echo "Options:"
            echo "  --help, -h    Print help and exit."
            echo "  --helpshort   Print short help and exit."
            echo "  --version     Print version information and exit."
            echo
            print_contact
            exit 0
            ;;

        --version)
            print_version 'basistest-svn'
            exit 0
            ;;
        *)
            args=("${args[@]}" "$1")
            ;;
    esac
    shift
done

# simply call the wrapper script with the password encoded as svnuser
cmd=(sudo -u svnuser /bin/sh /sbia/home/svn/bin/svnwrap "${args[@]}")
if [ $verbose -gt 0 ]; then
    echo "$ ${cmd[@]}"
fi
exec "${cmd[@]}"