michael@13: #!@l_prefix@/lib/openpkg/bash
michael@13: ##
michael@13: ##  openpkg -- OpenPKG Tool Chain
michael@13: ##  Copyright (c) 2000-2007 OpenPKG Foundation e.V. <http://openpkg.net/>
michael@13: ##  Copyright (c) 2000-2007 Ralf S. Engelschall <http://engelschall.com/>
michael@13: ##
michael@13: ##  Permission to use, copy, modify, and distribute this software for
michael@13: ##  any purpose with or without fee is hereby granted, provided that
michael@13: ##  the above copyright notice and this permission notice appear in all
michael@13: ##  copies.
michael@13: ##
michael@13: ##  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
michael@13: ##  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
michael@13: ##  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
michael@13: ##  IN NO EVENT SHALL THE AUTHORS AND COPYRIGHT HOLDERS AND THEIR
michael@13: ##  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
michael@13: ##  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
michael@13: ##  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
michael@13: ##  USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
michael@13: ##  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
michael@13: ##  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
michael@13: ##  OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
michael@13: ##  SUCH DAMAGE.
michael@13: ##
michael@13: ##  openpkg.sh: Execution Frontend (Language: Bourne-Shell)
michael@13: ##
michael@13: 
michael@13: ##
michael@13: ##  command line parsing
michael@13: ##
michael@13: 
michael@13: #   command line options defaults
michael@13: opt_prefix=""
michael@13: opt_tools=""
michael@13: opt_version=no
michael@13: opt_help=no
michael@13: 
michael@13: #   process command line options by iterating over arguments
michael@13: for opt
michael@13: do
michael@13:     case "${opt}" in
michael@13:         -*=*) arg=`echo "${opt}" | sed 's/^[-_a-zA-Z0-9]*=//'` ;;
michael@13:            *) arg='' ;;
michael@13:     esac
michael@13:     case "${opt}" in
michael@13:         -v|--version ) opt_version=yes;     shift ;;
michael@13:         -h|--help    ) opt_help=yes;        shift ;;
michael@13:         --prefix=*   ) opt_prefix="${arg}"; shift ;;
michael@13:         --tools=*    ) opt_tools="${arg}";  shift ;;
michael@13:         -* ) echo "openpkg:ERROR: Invalid command-line option \"${opt}\"." 1>&2
michael@13:              echo "openpkg:ERROR: Run \"${0} --help\" for list of valid options" 1>&2; exit 1 ;;
michael@13:         *  ) break ;;
michael@13:     esac
michael@13: done
michael@13: 
michael@13: ##
michael@13: ##  determine OpenPKG locations
michael@13: ##
michael@13: 
michael@13: #   determine path to OpenPKG instance
michael@13: openpkg_prefix="@l_prefix@"
michael@13: if [ ".${OPENPKG_PREFIX}" != . ]; then
michael@13:     openpkg_prefix="${OPENPKG_PREFIX}"
michael@13: fi
michael@13: if [ ".${opt_prefix}" != . ]; then
michael@13:     openpkg_prefix="${opt_prefix}"
michael@13: fi
michael@13: if [ -x "${openpkg_prefix}/bin/openpkg" -a -x "${openpkg_prefix}/libexec/openpkg/rpm" ]; then
michael@13:     #   OpenPKG 2.0 and higher
michael@13:     true
michael@13: elif [ -f "${openpkg_prefix}/bin/rpm" -a -x "${openpkg_prefix}/lib/openpkg/rpm" ]; then
michael@13:     #   OpenPKG 1.x
michael@13:     echo "openpkg:ERROR: OpenPKG 1.x instance found under \"${openpkg_prefix}\" (not supported)" 1>&2
michael@13:     exit 1
michael@13: else
michael@13:     echo "openpkg:ERROR: no OpenPKG instance found under \"${openpkg_prefix}\"" 1>&2
michael@13:     exit 1
michael@13: fi
michael@13: 
michael@13: #   allow convenient all-in-one specification of OpenPKG Tool Chain locations
michael@13: #   (assuming the filesystem layout of an uninstalled OpenPKG Tool Chain)
michael@13: openpkg_tools="${OPENPKG_TOOLS}"
michael@13: openpkg_tools_cmdpath="${OPENPKG_TOOLS_CMDPATH}"
michael@13: openpkg_tools_apipath="${OPENPKG_TOOLS_APIPATH}"
michael@13: if [ ".${opt_tool}" != . ]; then
michael@13:     openpkg_tools="${opt_tools}"
michael@13: fi
michael@13: if [ ".${openpkg_tools}" != . -a ".${openpkg_tools_cmdpath}" = . ]; then
michael@13:     openpkg_tools_cmdpath="${openpkg_tools}/cmd:@"
michael@13: fi
michael@13: if [ ".${openpkg_tools}" != . -a ".${openpkg_tools_apipath}" = . ]; then
michael@13:     openpkg_tools_apipath="${openpkg_tools}/api:@"
michael@13: fi
michael@13: 
michael@13: #   determine path to OpenPKG Tool Chain commands
michael@13: cmdpath="${openpkg_prefix}/libexec/openpkg"
michael@13: if [ -d "${openpkg_prefix}/libexec/openpkg-tools" ]; then
michael@13:     #   openpkg-tools package overrides
michael@13:     cmdpath="${openpkg_prefix}/libexec/openpkg-tools:${cmdpath}"
michael@13: fi
michael@13: if [ -d "${openpkg_prefix}/libexec/openpkg-audit" ]; then
michael@13:     #   openpkg-audit package overrides
michael@13:     cmdpath="${openpkg_prefix}/libexec/openpkg-audit:${cmdpath}"
michael@13: fi
michael@13: if [ ".${openpkg_tools_cmdpath}" != . ]; then
michael@13:     #   user supplied path overrides
michael@13:     cmdpath=`echo "${openpkg_tools_cmdpath}" | sed -e "s;@;${cmdpath};"`
michael@13: fi
michael@13: openpkg_tools_cmdpath=`echo "${cmdpath}" | sed -e 's/::/:/g' -e 's/^://' -e 's/:$//'`
michael@13: 
michael@13: #   determine path to OpenPKG Tool Chain API
michael@13: apipath=""
michael@13: if [ -d "${openpkg_prefix}/lib/openpkg-tools" ]; then
michael@13:     #   openpkg-tools package overrides
michael@13:     apipath="${openpkg_prefix}/lib/openpkg-tools:${apipath}"
michael@13: fi
michael@13: if [ ".${openpkg_tools_apipath}" != . ]; then
michael@13:     #   user supplied path overrides
michael@13:     apipath=`echo "${openpkg_tools_apipath}" | sed -e "s;@;${apipath};"`
michael@13: fi
michael@13: openpkg_tools_apipath=`echo "${apipath}" | sed -e 's/::/:/g' -e 's/^://' -e 's/:$//'`
michael@13: 
michael@13: ##
michael@13: ##  execute stand-alone option commands in advance
michael@13: ##
michael@13: 
michael@13: #   implement stand-alone "--help" option
michael@13: if [ ".${opt_help}" = .yes ]; then
michael@13:     release=`${openpkg_prefix}/libexec/openpkg/rpm --eval '%{l_openpkg_release}'`
michael@13:     echo ""
michael@13:     echo "This is ${release} <http://www.openpkg.org/>"
michael@13:     echo "Cross-Platform Unix Software Packaging Facility"
michael@13:     echo ""
michael@13:     echo "Copyright (c) 2000-2007 OpenPKG Foundation e.V. <http://openpkg.net/>"
michael@13:     echo "Copyright (c) 2000-2007 Ralf S. Engelschall <http://engelschall.com/>"
michael@13:     echo ""
michael@13:     echo "The command \"${openpkg_prefix}/bin/openpkg\" is the official command-line"
michael@13:     echo "execution frontend of the OpenPKG tool chain. Its usage is:"
michael@13:     echo ""
michael@13:     echo "  \$ ${openpkg_prefix}/bin/openpkg [<option> ...] \\"
michael@13:     echo "     <command> [<command-option> ...] [<command-argument> ...]"
michael@13:     echo ""
michael@13:     echo "where <option> is one of the following global options:"
michael@13:     echo "  -p, --prefix    sets the OpenPKG instance prefix   (also: \${OPENPKG_PREFIX})"
michael@13:     echo "  -t, --tools     sets the OpenPKG tool chain prefix (also: \${OPENPKG_TOOLS})"
michael@13:     echo "  -v, --version   display OpenPKG version/release"
michael@13:     echo "  -h, --help      display this usage help message"
michael@13:     echo ""
michael@13:     echo "where <command> is one of the following commands:"
michael@13:     echo "  rpm             (provided by bootstrap package)"
michael@13:     echo "  rpmbuild        (provided by bootstrap package)"
michael@13:     echo "  rpm2cpio        (provided by bootstrap package)"
michael@13:     echo "  rpm-config      (provided by bootstrap package)"
michael@13:     echo "  uuid            (provided by bootstrap package)"
michael@13:     echo "  rc              (provided by bootstrap package)"
michael@13:     echo "  lsync           (provided by bootstrap package)"
michael@13:     echo "  man             (provided by bootstrap package)"
michael@13:     #   install command intentionally left out in above display!
michael@13: 
michael@13:     #   dynamically figure out add-on commands
michael@13:     for cmd in rpm rpmbuild rpm2cpio rpm-config uuid rc lsync man install; do
michael@13:         id=`echo "${cmd}" | sed -e 's/-/_/g'`
michael@13:         eval "__cmd_seen_${id}=yes"
michael@13:     done
michael@13:     OIFS="${IFS}"; IFS=":"
michael@13:     for dir in ${openpkg_tools_cmdpath}; do
michael@13:         IFS="${OIFS}"
michael@13:         if [ ! -d ${dir} ]; then
michael@13:             continue
michael@13:         fi
michael@13:         for cmd in `cd ${dir} 2>/dev/null && echo *`; do
michael@13:             name=`echo "${cmd}" | sed -e 's/\.sh$//' -e 's/\.pl$//' \
michael@13:                  -e 's/^/X/' -e 's/^X\([a-z][a-zA-Z0-9_-]*\)$/\1/' -e 's/^X.*$//'`
michael@13:             if [ ".${name}" != . ]; then
michael@13:                 if [ -f ${dir}/${cmd} ]; then
michael@13:                     id=`echo "${name}" | sed -e 's/-/_/g'`
michael@13:                     eval "seen=\$__cmd_seen_${id}"
michael@13:                     if [ ".${seen}" != .yes ]; then
michael@13:                         echo "${name}" | awk '{ printf("  %-15s (provided by add-on package)\n", $0); }'
michael@13:                         eval "__cmd_seen_${id}=yes"
michael@13:                     fi
michael@13:                 fi
michael@13:             fi
michael@13:         done
michael@13:     done
michael@13:     IFS="${OIFS}"
michael@13:     echo ""
michael@13:     echo "where <command-option> and <command-argument> are <command> specific"
michael@13:     echo "options and arguments. Run \"${openpkg_prefix}/bin/openpkg <command> --help\""
michael@13:     echo "and \"${openpkg_prefix}/bin/openpkg man <command>\" for more details."
michael@13:     echo ""
michael@13:     exit 0
michael@13: fi
michael@13: 
michael@13: #   implement stand-alone "--version" option
michael@13: if [ ".${opt_version}" = .yes ]; then
michael@13:     release=`${openpkg_prefix}/libexec/openpkg/rpm --eval '%{l_openpkg_release}'`
michael@13:     version=`${openpkg_prefix}/libexec/openpkg/rpm -q --qf '%{version}' openpkg`
michael@13:     echo "${release} (${version})"
michael@13:     exit 0
michael@13: fi
michael@13: 
michael@13: ##
michael@13: ##  determine command details and execute command appropriately
michael@13: ##
michael@13: 
michael@13: #   command line sanity check
michael@13: if [ ${#} -eq 0 ]; then
michael@13:     echo "openpkg:ERROR: Invalid command-line arguments." 1>&2
michael@13:     echo "openpkg:ERROR: Run \"${openpkg_prefix}/bin/openpkg --help\" for list of valid arguments." 1>&2
michael@13:     exit 1
michael@13: fi
michael@13: 
michael@13: #   search command by iterating over all command directories
michael@13: cmd="${1}"
michael@13: shift
michael@13: cmd_path=""
michael@13: cmd_shell=""
michael@13: cmd_stack="${OPENPKG_TOOLS_CMDSTACK}"
michael@13: OIFS="${IFS}"; IFS=":"
michael@13: for dir in ${openpkg_tools_cmdpath}; do
michael@13:     IFS="${OIFS}"
michael@13: 
michael@13:     #   skip (currently) not existing directory
michael@13:     if [ ! -d ${dir} ]; then
michael@13:         continue
michael@13:     fi
michael@13: 
michael@13:     #   check for various command implementations
michael@13:     if [ -x ${dir}/${cmd} ]; then
michael@13:         #   found executable stand-alone binary
michael@13:         cmd_path="${dir}/${cmd}"
michael@13:         cmd_shell=""
michael@13:     elif [ -f ${dir}/${cmd}.sh ]; then
michael@13:         #   found non-executable Bourne-Shell script
michael@13:         cmd_path="${dir}/${cmd}.sh"
michael@13:         cmd_shell="${openpkg_prefix}/lib/openpkg/bash"
michael@13:     elif [ -f ${dir}/${cmd}.pl ]; then
michael@13:         #   found non-executable Perl script
michael@13:         cmd_path="${dir}/${cmd}.pl"
michael@13:         if [ -x ${openpkg_prefix}/bin/perl ]; then
michael@13:             cmd_shell="${openpkg_prefix}/bin/perl"
michael@13:         else
michael@13:             cmd_shell=`${openpkg_prefix}/lib/openpkg/shtool path -p "$PATH:$openpkg_prefix/lib/openpkg" -m perl 2>&1`
michael@13:             if [ ".${cmd_shell}" = . ]; then
michael@13:                 echo "openpkg:ERROR: No Perl interpreter found in \${PATH}" 1>&2
michael@13:                 exit 1
michael@13:             fi
michael@13:         fi
michael@13:         #   provide Perl module include path(s) to API
michael@13:         OIFS="${IFS}"; IFS=":"
michael@13:         for dir2 in ${openpkg_tools_apipath}; do
michael@13:             IFS="${OIFS}"
michael@13:             if [ ! -d ${dir2} ]; then
michael@13:                 continue
michael@13:             fi
michael@13:             cmd_shell="${cmd_shell} -I${dir2}"
michael@13:         done
michael@13:         IFS="${OIFS}"
michael@13:     else
michael@13:         #   command not found, continue searching
michael@13:         continue
michael@13:     fi
michael@13: 
michael@13:     #   check whether to use this found command or to continue searching
michael@13:     #   for next command implementation in sequence (in order to support
michael@13:     #   flexible nested command wrapping)
michael@13:     cmd_last=`echo "${cmd_stack}" | sed -e 's;:.*$;;'`
michael@13:     if [ ".${cmd_last}" = ".${cmd}" ]; then
michael@13:         #   we were last command on stack, so pop us from call
michael@13:         #   stack and continue searching for next implementation
michael@13:         cmd_stack=`echo "${cmd_stack}" | sed -e 's;^[^:][^:]*:*;;'`
michael@13:         continue
michael@13:     else
michael@13:         #   last command on stack was different, so stop
michael@13:         #   searching because we found the implementation
michael@13:         break
michael@13:     fi
michael@13: done
michael@13: IFS="${OIFS}"
michael@13: 
michael@13: #   sanity check search result
michael@13: if [ ".${cmd_path}" = . ]; then
michael@13:     echo "openpkg:ERROR: No such command \"${cmd}\" found in command path" 1>&2
michael@13:     echo "openpkg:ERROR: (${openpkg_tools_cmdpath})." 1>&2
michael@13:     echo "openpkg:ERROR: Set \${OPENPKG_TOOLS_CMDPATH} appropriately." 1>&2
michael@13:     echo "openpkg:ERROR: Run \"${openpkg_prefix}/bin/openpkg --help\" for list of valid commands." 1>&2
michael@13:     exit 1
michael@13: fi
michael@13: 
michael@13: #   export essential run-time information to command
michael@13: export OPENPKG_PREFIX="$openpkg_prefix"
michael@13: export OPENPKG_TOOLS_CMDPROG="${0}"
michael@13: export OPENPKG_TOOLS_CMDNAME="${cmd}"
michael@13: export OPENPKG_TOOLS_CMDSTACK=`echo "${OPENPKG_TOOLS_CMDSTACK}" | sed -e 's;^\(.\);:\1;' -e "s;^;${cmd};"`
michael@13: 
michael@13: #   execute command
michael@13: eval "exec ${cmd_shell} ${cmd_path} \${1+\"\$@\"}"
michael@13: