OpenPKG Specs: openpkg/rc@88242dc55a66 (annotated)

openpkg/rc@88242dc55a66 (annotated)

openpkg/rc

Thu, 08 Jan 2009 10:21:08 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Thu, 08 Jan 2009 10:21:08 +0100
changeset 36: 88242dc55a66
child 427: 71503088f51b
permissions: -rw-r--r--

Clean up packaging, use parallel make, and port to Solaris 11.

 #!@l_prefix@/lib/openpkg/bash --noprofile
 ##
 ##  rc -- OpenPKG Run-Command Processor
 ##  Copyright (c) 2000-2007 OpenPKG Foundation e.V. <http://openpkg.net/>
 ##  Copyright (c) 2000-2007 Ralf S. Engelschall <http://engelschall.com/>
 ##
 ##  Permission to use, copy, modify, and distribute this software for
 ##  any purpose with or without fee is hereby granted, provided that
 ##  the above copyright notice and this permission notice appear in all
 ##  copies.
 ##
 ##  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 ##  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 ##  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 ##  IN NO EVENT SHALL THE AUTHORS AND COPYRIGHT HOLDERS AND THEIR
 ##  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 ##  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 ##  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 ##  USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 ##  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 ##  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 ##  OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 ##  SUCH DAMAGE.
 ##
 ##
 ##  configuration
 ##
 #   program name, version and date
 progname="rc"
 progvers="1.2.0"
 progdate="28-Jul-2003"
 #   path to OpenPKG instance
 prefix="@l_prefix@"
 #   path to GNU bash and GNU shtool
 bash="$prefix/lib/openpkg/bash"
 shtool="$prefix/lib/openpkg/shtool"
 #   path to rc.d, rc.conf and rc.func
 rcdir="$prefix/etc/rc.d"
 rcconf="$prefix/etc/rc.conf"
 rcfunc="$prefix/etc/rc.func"
 #   helper variables
 NL="
 "
 ##
 ##  command line option parsing
 ##
 #   default parameters
 silent=0
 verbose=0
 debug=0
 help=0
 keep=0
 print=0
 eval=0
 config=0
 query=0
 #   iterate over argument line
 while [ $# -gt 0 ]; do
     opt=$1
     case $opt in
         -*=*) arg=${opt/-*=/} ;;
            *) arg='' ;;
     esac
     case $opt in
         -s|--silent  ) silent=1      ;;
         -v|--verbose ) verbose=1     ;;
         -d|--debug   ) debug=1       ;;
         -h|--help    ) help="Usage"  ;;
         -k|--keep    ) keep=1        ;;
         -p|--print   ) print=1       ;;
         -e|--eval    ) eval=1        ;;
         -c|--config  ) config=1      ;;
         -q|--query   ) query=1       ;;
         -*           ) help="Invalid option \`$opt'"; break ;;
         *            ) break         ;;
     esac
     shift
 done
 #   display error or usage message
 if [ ".$help" != .0 ]; then
     if [ ".$help" != ".Usage" ]; then
         echo "$progname:ERROR: $help" 1>&2
     fi
     echo "Usage: $progname [-s|--silent] [-v|--verbose] [-d|--debug] [-k|--keep] [-h|--help]" 1>&2
     echo "       [-p|--print] [-e|--eval] [-c|--config] [-q|--query]" 1>&2
     echo "       <package> <command> [<command> ...]"  1>&2
     if [ ".$help" != ".Usage" ]; then
         exit 1
     else
         exit 0
     fi
 fi
 #   determine a reasonable default silent/verbose situation in case
 #   nothing was explicitly specified or a conflicting situation was
 #   specified. Else is silent either disabled by default or was
 #   explicitly enabled.
 if [ $silent -eq $verbose ]; then
     if [ -t 2 ]; then
         #   stdout connected to a terminal device, so no need to be silent
         silent=0
     else
         #   stdout NOT connected to a terminal device, so be silent
         silent=1
     fi
 fi
 #   extend run-time environment with local OpenPKG tools (shtool, rpmtool, etc)
 PATH_ORIG="$PATH"
 PATH="$prefix/bin:$PATH"
 PATH="$prefix/sbin:$PATH"
 PATH="$prefix/lib/openpkg:$PATH"
 #   establish secure temporary directory
 i=0
 while [ $i -lt 10 ]; do
    tmpdir="/tmp/rc-`date '+%Y%m%d%H%M%S'`-$$"
    (umask 022; mkdir $tmpdir >/dev/null 2>&1) && break
    i=$(($i + 1))
    sleep 1
 done
 if [ $i -eq 10 ]; then
     echo "openpkg:rc:ERROR: unable to establish secure temporary directory" 1>&2
     exit 1
 fi
 declare -r tmpdir
 trap "trap - EXIT INT ABRT QUIT TERM; rm -rf $tmpdir >/dev/null 2>&1 || true" EXIT INT ABRT QUIT TERM
 #   determine reasonable temporary files
 tmpfile="$tmpdir/rc.tmp"
 outfile="$tmpdir/rc.out"
 errfile="$tmpdir/rc.err"
 allfile="$tmpdir/rc.all"
 #   handle --query option
 if [ ".$query" = .1 ]; then
     #   suck in all %config sections of all scripts
     #   (rc.openpkg is special: has to be first and requires pre-inclusion of rc.conf)
     touch $tmpfile
     sed <$rcdir/rc.openpkg >>$tmpfile -e "1,/^%config/d" -e '/^%.*/,$d'
     echo ". $rcconf" >>$tmpfile
     scripts=`/bin/ls $rcdir/rc.* | sed -e "s;^$rcdir/rc\.;;" | egrep -v '^openpkg$'`
     for s_name in $scripts; do
         sed <$rcdir/rc.$s_name >>$tmpfile -e "1,/^%config/d" -e '/^%.*/,$d'
     done
     . $tmpfile
     #   apply override values to get effective values
     . $rcconf
     #   display variable value
     for var in $*; do
         eval "echo \${$var}"
     done
     #   stop processing immediately
     exit 0
 fi
 #   handle --config option
 if [ ".$config" = .1 ]; then
     #   suck in all %config sections of all scripts
     #   (rc.openpkg is special: has to be first and requires pre-inclusion of rc.conf)
     touch $tmpfile
     sed <$rcdir/rc.openpkg >>$tmpfile -e "1,/^%config/d" -e '/^%.*/,$d'
     echo ". $rcconf" >>$tmpfile
     scripts=`/bin/ls $rcdir/rc.* | sed -e "s;^$rcdir/rc\.;;" | egrep -v '^openpkg$'`
     for s_name in $scripts; do
         sed <$rcdir/rc.$s_name >>$tmpfile -e "1,/^%config/d" -e '/^%.*/,$d'
     done
     . $tmpfile
     #   remember default values
     vars=""
     OIFS="$IFS"; IFS="$NL"
     for assign in `egrep '[ 	]*[a-zA-Z_][a-zA-Z_0-9]*=' $tmpfile | sort`; do
         var=`echo "$assign" | sed -e 's;^[ 	]*\([a-zA-Z_][a-zA-Z_0-9]*\)=.*;\1;'`
         vars="$vars $var"
         eval "${var}_def=\"\$$var\""
     done
     IFS="$OIFS"
     #   apply override values to get effective values
     . $rcconf
     #   determine how to print in bold mode in case output
     #   is connected to a terminal device
     if [ -t 1 ]; then
         begin_bold=`$shtool echo -e '%B'`
         end_bold=`$shtool echo -e '%b'`
     else
         begin_bold=""
         end_bold=""
     fi
     #   iterate over all variables and display name, default and effective value
     echo "${begin_bold}Configuration Variable   Effective Value              Default Value${end_bold}"
     echo "------------------------ ------------------------- -- -------------------------"
     for var in . $vars; do
         test ".$var" = .. && continue
         eval "val=\"\$$var\""
         eval "def=\"\$${var}_def\""
         tag="!="
         begin="$begin_bold"
         end="$end_bold"
         if [ ".$val" = ".$def" ]; then
             tag="=="
             begin=""
             end=""
         fi
         printf "%s%-24s %-25s %s %-25s%s\n" "$begin" "$var" "\"$val\"" "$tag" "\"$def\"" "$end"
     done
     #   stop processing immediately
     exit 0
 fi
 #   determine script(s) to use and make sure they exist
 if [ $# -lt 1 ]; then
     echo "openpkg:rc:ERROR: no package and command(s) specified" 1>&2
     exit 1
 fi
 if [ $# -lt 2 ]; then
     echo "openpkg:rc:ERROR: no command(s) specified for package" 1>&2
     exit 1
 fi
 scripts="${1/*rc./}"
 shift
 isall=0
 if [ ".$scripts" = ".all" ]; then
     isall=1
     . $rcconf
     if [ ".$openpkg_runall" != . ]; then
         #   backward compatibility only
         echo "openpkg:rc:WARNING: variable \"openpkg_runall\" was renamed to \"openpkg_rc_all\"." 1>&2
         echo "openpkg:rc:WARNING: value of deprecated variable \"openpkg_runall\" taken over for compatibility." 1>&2
         echo "openpkg:rc:WARNING: please update your local configuration in \"$rcconf\"." 1>&2
         openpkg_rc_all="$openpkg_runall"
     fi
     case "$openpkg_rc_all" in
         [Nn][Oo] | [Ff][Aa][Ll][Ss][Ee] | [Oo][Ff][Ff] | 0 ) exit 0 ;;
     esac
     scripts=`/bin/ls $rcdir/rc.* | sed -e "s;^$rcdir/rc\.;;"`
 else
     if [ ! -f "$rcdir/rc.$scripts" ]; then
         echo "openpkg:rc:ERROR: package \"$scripts\" not found" 1>&2
         exit 1
     fi
 fi
 #   determine current run-time user
 user=`(id -un) 2>/dev/null ||\
       (id | sed -e 's;^[^(]*(\([^)]*\)).*;\1;') 2>/dev/null ||\
       (whoami) 2>/dev/null ||\
       (who am i | cut "-d " -f1) 2>/dev/null ||\
       echo ${LOGNAME:-${USER}}`
 if [ ".$user" = . ]; then
     echo "openpkg:rc:ERROR: unable to determine current username" 1>&2
     exit 1
 fi
 #   iterate over the specified commands
 rv=0
 cmds="$*"
 for cmd in $cmds; do
     #   create "all outputs" file for execution operation (i.e. not --print and --eval)
     if [ ".$print" = .0 -a ".$eval" = .0 ]; then
         rm -f $allfile
         touch $allfile
     fi
     #   find scripts which contain the command and determine
     #   their individual user/priority settings
     list=''
     for s_name in $scripts; do
         enable=yes
         #   check for upgraded package with unresolved configuration file conflicts
         if [ -d "$prefix/etc/$s_name" -a ".$eval" != .1 ]; then
             if [ ".`(find $prefix/etc/$s_name -type f -print; find $prefix/etc/$s_name -type l -print) 2>/dev/null | egrep -v '.*/\.(snap|snapshot)/.*' | egrep '.*\.rpm(new|orig|save)$'`" != . ]; then
                 case "$cmd" in
                     start|restart ) type="ERROR"   ;;
                     * )             type="WARNING" ;;
                 esac
                 echo "openpkg:rc:${type}: package \"$s_name\" has unresolved configuration file conflicts" 1>&2
                 echo "openpkg:rc:${type}: indicated by \"*.rpm(new|orig|save)\" files in or below the" 1>&2
                 echo "openpkg:rc:${type}: directory \"$prefix/etc/$s_name\". Please resolve first!" 1>&2
                 if [ ".$type" = .ERROR ]; then
                     continue
                 fi
             fi
         fi
         #   check whether command exists in script at all
         cmdline=`grep "^%$cmd" $rcdir/rc.$s_name | sed -e "s;^%$cmd[^ 	].*;;"`
         if [ ".$cmdline" != . ]; then
             #   parse local command options
             cmdopts=`echo "$cmdline" | sed -e "s;^%$cmd *;;"`
             s_user=$user
             s_prio=500
             s_output=no
             set -- $cmdopts
             prev=''
             for opt
             do
                 if [ ".$prev" != . ]; then
                     opt="$prev$opt"
                     prev=''
                 fi
                 case $opt in
                     -*=*       ) arg=${opt/-*=/} ;;
                     -[a-zA-Z]* ) arg=${opt/-[a-zA-Z0-9]/} ;;
                               *) arg='' ;;
                 esac
                 case $opt in
                     -u|-p         ) prev=$opt    ;;
                     -e|--enable   ) enable=yes   ;;
                     -d|--disable  ) enable=no    ;;
                     -o|--output   ) s_output=yes ;;
                     -u*|--user=*  ) s_user=$arg  ;;
                     -p*|--prio=*  ) s_prio=$arg  ;;
                     *             ) echo "openpkg:rc:WARNING: invalid local option \"$opt\" in \"$rcdir/rc.$s_name:%$cmd\""; break ;;
                 esac
                 shift
             done
             #   sanity check: is operation supported by current environment?
             if [ ".$s_user" != ".$user" -a ".$user" != ".root" -a ".$print" = .0 ]; then
                 echo "openpkg:rc:ERROR: $s_name:%$cmd: require root privileges to run as user \"$s_user\"" 1>&2
                 exit 1
             fi
             #   skip this script if script is disabled
             if [ ".$enable" != .yes ]; then
                 continue
             fi
             #   accumulate the determined information
             list="$list,$s_prio:$s_name:$s_user:$s_output"
         else
             #   command not found in script
             if [ ".$isall" = .0 ]; then
                 echo "openpkg:rc:ERROR: $s_name: command \"$cmd\" not found" 1>&2
                 exit 1
             fi
         fi
     done
     #   if operating on all scripts, complain if a non-standard command
     #   was used and it was not found in any(!) script at all. The
     #   standard commands are accepted to perform no operation if no
     #   packages are currently installed which provide such commands.
     if [ ".$list" = . -a ".$isall" = .1 ]; then
         case "$cmd" in
             start|stop|monthly|weekly|daily|hourly|quarterly )
                 ;;
             * )
                 echo "openpkg:rc:ERROR: command \"$cmd\" not found in any script" 1>&2
                 rv=1
                 break
                 ;;
         esac
     fi
     #   generate global (loop invariant) header for script in case of
     #   --print and --eval (for the execution approach we cannot do
     #   this, because there a new script is generated from scratch for
     #   each package.
     if [ ".$print" = .1 -o ".$eval" = .1 ]; then
         rm -f $tmpfile
         touch $tmpfile
         #   generate: optionally enable shell debugging
         if [ ".$debug" = .1 ]; then
             echo "set -x" >>$tmpfile
         fi
         #   generate: inclusion of the run-command helper functions
         echo ". $rcfunc" >>$tmpfile
         #   generate: all %config sections of all(!) scripts. We cannot
         #   just include those which have the current command in it
         #   because by design all command scripts see the %config
         #   section of all(!) scripts. Because of $openpkg_rc_def the
         #   variable, we place the %config section of "openpkg" to the front.
         #   And we have to extra pre-include the rc.conf to allow
         #   rc.conf to override the default of $openpkg_rc_def, too.
         sed <$rcdir/rc.openpkg >>$tmpfile -e "1,/^%config/d" -e '/^%.*/,$d'
         echo ". $rcconf" >>$tmpfile
         l_scripts=`/bin/ls $rcdir/rc.* | sed -e "s;^$rcdir/rc\.;;" | egrep -v '^openpkg$'`
         for l_name in $l_scripts; do
             sed <$rcdir/rc.$l_name >>$tmpfile -e "1,/^%config/d" -e '/^%.*/,$d'
         done
         #   generate: inclusion of the application of override variables
         echo ". $rcconf" >>$tmpfile
         #   for --eval redirect stderr and stdout (but remember stdout)
         #   (let stderr pass unfiltered in case of debug mode)
         if [ ".$eval" = .1 ]; then
             if [ ".$debug" = .1 ]; then
                echo "exec 3<&1- 1>/dev/null" >>$tmpfile
             else
                echo "exec 3<&1- 1>/dev/null 2>/dev/null" >>$tmpfile
             fi
         fi
     fi
     #   iterate over all packages (in priority order!) where the command
     #   was found in order to execute, print, or evaluate their scripts
     verbose_pos=0
     for entry in `echo $list | tr ',' '\012' | sort -n`; do
         [ ".$entry" = . ] && continue
         #   re-determine the script name, script and whether to print output
         eval `echo $entry | sed -e 's%^[0-9]*:\(.*\):\(.*\):\(.*\)$%s_name="\1"; s_user="\2"; s_output="\3";%'`
         #   display verbose progress message parts
         if [ ".$print" = .0 -a ".$eval" = .0 -a ".$silent" = .0 ]; then
             #   line break if we already have output more than 70
             #   characters (notice that usually already more characters
             #   where printed, because of the name of the last script)
             if [ $verbose_pos -gt 70 ]; then
                 verbose_pos=0
                 echo "" 1>&2
             fi
             #   display verbose message parts: prefix (on first), separator and package
             if [ $verbose_pos -eq 0 ]; then
                 output=$(printf "OpenPKG: %s: " "$cmd")
                 echo -n "$output" 1>&2
                 verbose_pos=$(($verbose_pos + ${#output}))
                 output_prefix=""
             else
                 output_prefix=", "
             fi
             output=$(printf "%s%s" "$output_prefix" "$s_name")
             echo -n "$output" 1>&2
             verbose_pos=$(($verbose_pos + ${#output}))
         fi
         #   now operate on the particular script
         if [ ".$print" = .1 ]; then
             #   special case: under --print we just add the %common and
             #   command scripts to the generated output script and do
             #   not execute anything at this point.
             sed <$rcdir/rc.$s_name >>$tmpfile -e "1,/^%common/d" -e '/^%.*/,$d'
             sed <$rcdir/rc.$s_name >>$tmpfile -e "1,/^%$cmd/d" -e '/^%.*/,$d'
         elif [ ".$eval" = .1 ]; then
             #   special case: under --eval we just add the %common and
             #   command scripts to the generated output script and do
             #   not execute anything at this point. Additionally, we
             #   emulate a real sub-shell environment.
             sed <$rcdir/rc.$s_name >>$tmpfile -e "1,/^%common/d" -e '/^%.*/,$d'
             echo "while [ 1 ]; do" >>$tmpfile
             sed <$rcdir/rc.$s_name >>$tmpfile -e "1,/^%$cmd/d" -e '/^%.*/,$d' \
                 -e 's/^exit[^;]*/break 99/'   -e 's/\([^a-zA-Z0-9_]\)exit[^;]*/\1break 99/g' \
                 -e 's/^return[^;]*/break 99/' -e 's/\([^a-zA-Z0-9_]\)return[^;]*/\1break 99/g'
             echo "break" >>$tmpfile
             echo "done" >>$tmpfile
         else
             #   the regular case of executing the command script directly
             #   prepare temporary files
             rm -f $tmpfile $outfile $errfile
             (umask 077; touch $tmpfile $outfile $errfile)
             #   generate: optionally enable shell debugging
             if [ ".$debug" = .1 ]; then
                 echo "set -x" >>$tmpfile
             fi
             #   generate: inclusion of the run-command helper functions
             echo ". $rcfunc" >>$tmpfile
             #   generate: all %config sections of all(!) scripts. We cannot
             #   just include those which have the current command in it
             #   because by design all command scripts see the %config
             #   section of all(!) scripts. Because of $openpkg_rc_def the
             #   variable, we place the %config section of "openpkg" to the front.
             #   And we have to extra pre-include the rc.conf to allow
             #   rc.conf to override the default of $openpkg_rc_def, too.
             sed <$rcdir/rc.openpkg >>$tmpfile -e "1,/^%config/d" -e '/^%.*/,$d'
             echo ". $rcconf" >>$tmpfile
             l_scripts=`/bin/ls $rcdir/rc.* | sed -e "s;^$rcdir/rc\.;;" | egrep -v '^openpkg$'`
             for l_name in $l_scripts; do
                 sed <$rcdir/rc.$l_name >>$tmpfile -e "1,/^%config/d" -e '/^%.*/,$d'
             done
             #   generate: inclusion of the application of override variables
             echo ". $rcconf" >>$tmpfile
             #   generate: %common section and particular command section
             sed <$rcdir/rc.$s_name >>$tmpfile -e "1,/^%common/d" -e '/^%.*/,$d'
             sed <$rcdir/rc.$s_name >>$tmpfile -e "1,/^%$cmd/d" -e '/^%.*/,$d'
             #   execute the generated script with GNU Bash
             if [ ".$user" != ".$s_user" ]; then
                 #   execute as different user
                 if [ ".$verbose" = .1 ]; then
                     echo "openpkg:rc:NOTICE: $prefix:$s_name:%$cmd: executing as user $s_user"
                 fi
                 if [ ".$user" = ".@l_susr@" -a ".@l_susr@" = ".root" ]; then
                     chown $s_user $tmpfile
                     if [ ".$debug" = .1 ]; then
                         su - $s_user -c "PATH=\"$PATH\"; $bash $tmpfile" >$outfile
                         rc=$?
                     else
                         su - $s_user -c "PATH=\"$PATH\"; $bash $tmpfile" >$outfile 2>$errfile
                         rc=$?
                     fi
                 elif [ ".@l_susr@" != ".root" ]; then
                     #   do not complain if we would not have any chance
                     #   at all to switch the user because we are running
                     #   in a non-privileged instance. Else we would just
                     #   trash the mailbox of the user receiving the
                     #   output of periodic run-commands.
                     rc=0
                 else
                     echo "openpkg:rc:WARNING: $prefix:$s_name:%$cmd: require root privileges to run as user \"$s_user\"" 1>&2
                     rc=1
                 fi
             else
                 #   execute as current user
                 if [ ".$verbose" = .1 ]; then
                     echo "openpkg:rc:NOTICE: $prefix:$s_name:%$cmd: executing as user $user"
                 fi
                 if [ ".$debug" = .1 ]; then
                     $bash $tmpfile >$outfile
                     rc=$?
                 else
                     $bash $tmpfile >$outfile 2>$errfile
                     rc=$?
                 fi
             fi
             if [ $rc -ne 0 ]; then
                 if [ ".$silent" = .0 ]; then
                     #   indicate failure of execution on verbose message line
                     echo ":FAILED" 1>&2
                     verbose_pos=0
                 fi
                 #   give details of execution failure
                 ( echo "openpkg:rc:WARNING: $prefix:$s_name:%$cmd: failed with return code $rc"
                   if [ ".`cat $outfile $errfile`" != . ]; then
                       echo "openpkg:rc:NOTICE: output from stdout/stderr is following:"
                       echo "+----------------------------------------------------------------------"
                       cat $outfile $errfile | sed -e 's;^;| ;'
                       echo "+----------------------------------------------------------------------"
                   else
                       echo "openpkg:rc:NOTICE: no output occurred on stdout/stderr"
                   fi
                 ) 1>&2
                 #   enforce global return value
                 rv=1
             else
                 #   give details of execution success in case verbose operation is requested
                 if [ ".$verbose" = .1 ]; then
                     ( echo "openpkg:rc:NOTICE: $prefix:$s_name:%$cmd: succeeded with return code $rc"
                       if [ ".`cat $outfile $errfile`" != . ]; then
                           echo "openpkg:rc:NOTICE: output from stdout/stderr is following:"
                           echo "+----------------------------------------------------------------------"
                           cat $outfile $errfile | sed -e 's;^;| ;'
                           echo "+----------------------------------------------------------------------"
                       else
                           echo "openpkg:rc:NOTICE: no output occurred on stdout/stderr"
                       fi
                     ) 1>&2
                 fi
                 if [ ".$s_output" = .yes ]; then
                     #   accumulate script output for later display
                     cat $outfile >>$allfile
                 fi
             fi
         fi
     done
     #   post-processing for each command
     if [ ".$print" = .1 ]; then
         #   for --print just print the resulting script to stdout
         cat $tmpfile
     elif [ ".$eval" = .1 ]; then
         #   finish generation of temporary script by restoring stdout
         #   and printing the exported environment variables into a format
         #   suitable for evaluation by the callers shell.
         echo "exec 1<&3-" >>$tmpfile
         echo "unset PWD SHLVL" >>$tmpfile
         echo "env |\\" >>$tmpfile
         echo "egrep '^[A-Z_][A-Z0-9_]*=.' |\\" >>$tmpfile
         echo "sed -e '/^_=/d' -e 's/\\\\/\\\\\\\\/g' -e 's/\"/\\\\\"/g' \\" >>$tmpfile
         case $SHELL in
             csh|*/csh|tcsh|*/tcsh )
                 echo "-e 's/^\\([^=]*\\)=\\(.*\\)\$/setenv \\1 \"\\2\"/'" >>$tmpfile
                 ;;
             * )
                 echo "-e 's/^\\([^=]*\\)=\\(.*\\)\$/\\1=\"\\2\"; export \\1/'" >>$tmpfile
                 ;;
         esac
         #   prepare temporary files
         rm -f $outfile $errfile
         touch $outfile $errfile
         #   now replace temporary script with its output
         #   by executing it and capturing its output
         #   (let stderr pass unfiltered in case of debug mode)
         if [ ".$debug" = .1 ]; then
             env -i \
                 HOME="$HOME" \
                 USER="$USER" \
                 LOGNAME="$LOGNAME" \
                 TERM="$TERM" \
                 PATH="$PATH_ORIG" \
                 MANPATH="$MANPATH" \
                 INFOPATH="$INFOPATH" \
                 LD_LIBRARY_PATH="$LD_LIBRARY_PATH" \
                 $bash --norc --noprofile --posix \
                 $tmpfile >$outfile
         else
             env -i \
                 HOME="$HOME" \
                 USER="$USER" \
                 LOGNAME="$LOGNAME" \
                 TERM="$TERM" \
                 PATH="$PATH_ORIG" \
                 MANPATH="$MANPATH" \
                 INFOPATH="$INFOPATH" \
                 LD_LIBRARY_PATH="$LD_LIBRARY_PATH" \
                 $bash --norc --noprofile --posix \
                 $tmpfile >$outfile 2>/dev/null
         fi
         cp $outfile $tmpfile
         #   for --eval we cannot just print the resulting script because
         #   not all Bourne-Shell implementations like to "eval" large
         #   multi-line outputs. Hence we output a little one-liner which
         #   "sources" the script instead and cleans up.
         case $SHELL in
             csh|*/csh|tcsh|*/tcsh )
                 echo "source $tmpfile; rm -rf $tmpdir 2>/dev/null || true"
                 ;;
             * )
                 echo ". $tmpfile; rm -rf $tmpdir 2>/dev/null || true"
                 ;;
         esac
     else
         #   for the execution situation just make sure we
         #   terminate the verbose message output.
         if [ ".$silent" = .0 -a $verbose_pos -gt 0 ]; then
             echo "." 1>&2
         fi
         #   additionally, if a script wants its output to be displayed,
         #   now do it. In case there was no such request, do not bother
         #   -- we then just output an empty file and so can avoid an
         #   extra test surrounding the next command.
         cat $allfile
     fi
 done
 #   cleanup temporary files except the result script in
 #   case of --eval (which is then removed by the caller).
 #   keep those files for debugging purposes if requested.
 if [ ".$keep" = .0 ]; then
     rm -f $outfile $errfile $allfile >/dev/null 2>&1 || true
     if [ ".$eval" = .0 ]; then
         rm -f $tmpfile >/dev/null 2>&1 || true
         rm -rf $tmpdir >/dev/null 2>&1 || true
     fi
 fi
 #   now clean the exit trap and exit with the global return value
 #   indicating to the caller whether all scripts were executed
 #   successfully or at least one failed.
 trap - EXIT
 exit $rv

OpenPKG Specs / annotate

openpkg/rc@88242dc55a66 (annotated)

openpkg/rc