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MahiroOS-jhalfs/BLFS/func_dependencies

291 lines
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Bash

#!/bin/bash
#
# $Id$
#
set -e
declare -i cntr=0
declare -a spaceSTR=" "
#----------------------------#
generate_dependency_tree() { #
#----------------------------#
: <<inline_doc
function: Create a dependency tree for the TARGET
input vars: none
externals: vars: TARGET
PKGXML
DEP_LEVEL
func: do_dependencies
modifies: vars: PKGXML
BLFS_XML
returns: nothing
output: files: $TARGET.dep
$TARGET-index.xml.tmp
depure.txt
on error: nothing
on success: nothing
inline_doc
local ENTRY_START
local ENTRY_END
#---------------------
# Create the working directory and cd into it
mkdir $TARGET && cd $TARGET
#---------------------
# XML file of the target package
PKGXML=`grep "^$TARGET[[:space:]]" ../packages | cut -f2`
#---------------------
# The BLFS sources directory.
BLFS_XML=`echo $PKGXML | sed -e 's,/.*,,'`
if [[ ! -d ../$BLFS_XML ]] ; then
echo -e "\tThe BLFS book sources directory is missing.\n"
echo -e "\tExecution aborted.\n"
cd .. && rmdir $TARGET
exit 1
fi
#---------------------
# XInclude stuff
ENTRY_START="<xi:include xmlns:xi=\"http://www.w3.org/2003/XInclude\" href=\"../"
ENTRY_END="\"/>"
echo -en "\tGenerating $TARGET dependencies tree ..."
#---------------------
# Create target package dependencies list
case $TARGET in
# Meta-packages at target level
# KDE and Gnome-{core,full} could be made via packages.sh, but not sure yet how.
alsa ) # When target "alsa", use all alsa-* packages
echo -e "alsa-oss\nalsa-firmware\nalsa-tools\nalsa-utils\n \
alsa-plugins\nalsa-lib" > dependencies/$TARGET.dep
;;
* ) # Default
xsltproc --stringparam dependencies $DEP_LEVEL \
-o dependencies/$TARGET.dep \
../dependencies.xsl ../$PKGXML
;;
esac
#---------------------
# Start with a clean $TARGET-index.xml.tmp file
> $TARGET-index.xml.tmp
#---------------------
# Write the XInclude
echo -e " $ENTRY_START$PKGXML$ENTRY_END" >> $TARGET-index.xml.tmp
#------------------P---
# Start with a clean depure.txt file
> depure.txt
#---------------------
# If have dependencies, write its XInclude and find sub-dependencies
if [[ -f dependencies/$TARGET.dep ]]; then
echo -e "Start loop for PKG $TARGET\n" >> depure.txt
mkdir xincludes && do_dependencies $TARGET
fi
echo "done"
}
#-----------------------#
do_dependencies() { # Loop to find sub-dependencies :::WARNING::: THIS IS A RECURVISE FUNCTION
#-----------------------#
: <<inline_doc
function: Loop through all the packages and create a sub-dependency tree
input vars: $1, package name
externals: vars: $DEP_LEVEL
$TARGET
$PRINT_SERVER
$KBR5
$GHOSTSCRIPT
$MAILSERVER
file: depure.txt
$TARGET-index.xml.tmp
$PKG.dep
$PKG.inc
modifies: files
returns: nothing
output: file: $PKG-xinc.tmp
depure.txt
$TARGET-index.xml.tmp
on error: exit
on success:
inline_doc
set -e
local PKG=$1
local saveIFS=$IFS
local DEP_LV=$DEP_LEVEL
local line line2 DEP
echo -e "\tPKG is $PKG" >> depure.txt
echo -e "\tDEP_LEVEL for $PKG is $DEP_LV\n" >> depure.txt
#------------------
# If a premade xinclude file exists, use it. If not, create one
if [[ -f xincludes/$PKG.xinc ]] ; then
echo -e "\tReusing xinclude file for PKG $PKG" >> depure.txt
IFS=$'\x0A'
for line in `cat xincludes/$PKG.xinc` ; do
IFS=$saveIFS
# Remove the Xinclude entry if found. We want the most newer one.
# Using double quotes to let bash expand variables.
# Remove also the empty line created. Can not be done in one step
# due that d requires the pattner between /, but we have a lot of /
# inside the pattner.
sed -e "s,^[[:space:]]*$line,," -e '/./!d' -i $TARGET-index.xml.tmp
# Write the XInclude
echo -e "$line" >> $TARGET-index.xml.tmp
done
return
fi
#------------------
# Start with a clean $PKG.xinc.tmp file
> xincludes/$PKG.xinc.tmp
for DEP in `cat dependencies/$PKG.dep`; do
# Special packages (a lot of hacks)
case $DEP in
db ) # The proper version of DB is installed in LFS
continue ;;
hal-requirements ) # ID value don't have their own XML package file
continue ;;
perl-* | tk-perl ) DEP=perl-modules ;;
# Orphan links (proper link must be created when generating the book)
arts ) DEP=aRts ;; # That should be fixed in the BLFS book
# Set values for alternative packages
# X is a meta-package, thus handled in another way.
LPRng | cups ) DEP=$PRINT_SERVER ;;
mitkrb | heimdal ) DEP=$KBR5 ;;
gs | espgs ) DEP=$GHOSTSCRIPT ;;
MTA ) DEP=$MAIL_SERVER ;; # The BLFS book need be fixed yet for that
esac
#------------------
echo -e "\tDEP for $PKG is $DEP" >> depure.txt
case $DEP in
# Circular dependencies at level 3
cracklib | docbook-utils | libxml2 | cyrus-sasl | alsa-lib | \
unixodbc | cups | libexif | esound | gimp )
[[ "$DEP_LV" = "3" ]] && DEP_LV=2
;;
* ) DEP_LV=$DEP_LEVEL ;;
esac
#------------------
echo -e "\tDEP_LEVEL for $DEP is $DEP_LV" >> depure.txt
# XML file of dependency package
DEP_XML=`grep "^$DEP[[:space:]]" ../packages | cut -f2`
echo -e "\t\tDEP_XML is $DEP_XML\n" >> depure.txt
case $DEP in
x-window-system ) ;; # No page for that (proper link must be created when generating the book)
xorg7 ) ;; # This page will be dump in the xorg7.xinc file
* )
# Remove the Xinclude entry if found
sed -e "s,^[[:space:]]*$ENTRY_START$DEP_XML$ENTRY_END,," \
-e '/./!d' -i xincludes/$PKG.xinc.tmp
# Write the XInclude
echo -e " $ENTRY_START$DEP_XML$ENTRY_END" >> xincludes/$PKG.xinc.tmp
;;
esac
#------------------
# If not already created, create its dependencies list
if [[ ! -f dependencies/$DEP.dep ]] ; then
case $DEP in
# Meta-packages at dependency level (ugly *.dep files, but work for now)
alsa ) # When dependency "alsa", use all alsa-* packages
echo -e "alsa-oss\nalsa-firmware\nalsa-tools\nalsa-utils\n \
alsa-plugins\nalsa-lib" > dependencies/$DEP.dep
;;
x-window-system ) # X11 alternatives
echo -e "x-config\nx-setup\n$X11" > dependencies/$DEP.dep
;;
xorg7 ) # All Xorg7 packages except Xterm (circular dependency)
echo -e "rman\nxorg7-driver\nxorg7-server\nluit\nxorg7-font\n \
xorg7-data\nxorg7-app\nxbitmaps\nmesalib\nlibdrm\n \
xorg7-lib\nxorg7-util\nxorg7-proto" > dependencies/$DEP.dep
;;
* ) xsltproc --stringparam dependencies $DEP_LV \
-o dependencies/$DEP.dep ../dependencies.xsl ../$DEP_XML
;;
esac
fi
#------------------
# If needed, process its dependencies
if [[ -f dependencies/$DEP.dep ]] ; then
# If a premade xinclude file esist, include it
if [[ -f xincludes/$DEP.xinc ]] ; then
echo -e "\tReusing xinclude file for PKG $DEP (to solve $PKG)\n" >> depure.txt
IFS=$'\x0A'
for line2 in `cat xincludes/$DEP.xinc` ; do
IFS=$saveIFS
# Remove the Xinclude entry if found
sed -e "s,^[[:space:]]*$line2,," -e '/./!d' -i xincludes/$PKG.xinc.tmp
# Write the XInclude
echo -e "$line2" >> xincludes/$PKG.xinc.tmp
done
#------------------
# Create the xinclude file
else
echo -e "\nStart new loop for PKG $DEP (to solve $PKG)\n" >> depure.txt
#
# >>>>>> THIS IS A RECURSIVE FUNCTION CALL.. BEWARE OF GREMLINS. <<<<<<
#
# If the recursion depth is not too great this is an acceptable methodology for a script language
# However, uncontrolled recursion will cause a seg-fault due to stack issues with local variables.
#
set +e
[[ "${VERBOSITY}" > 0 ]] && echo -ne "\nrecursive call: $((++cntr)) ${spaceSTR:0:$cntr} ${RED}$DEP${OFF}"
echo -ne "\nrecursive call: $cntr ${spaceSTR:0:$cntr} $DEP" >>koffice.XX
do_dependencies $DEP
echo -ne "\nrecursive ret: $cntr ${spaceSTR:0:$cntr} $DEP\t(to solve $PKG)" >>koffice.XX
[[ "${VERBOSITY}" > 0 ]] && echo -ne "\nrecursive ret: $cntr ${spaceSTR:0:$((cntr--))} ${GREEN}$DEP${OFF}\tUsing the new xinclude file for PKG $DEP (to solve $PKG)"
set -e
# Include it when done
echo -e "\tUsing the new xinclude file for PKG $DEP (to solve $PKG)\n" >> depure.txt
IFS=$'\x0A'
for line2 in `cat xincludes/$DEP.xinc` ; do
IFS=$saveIFS
# Remove the Xinclude entry if found
sed -e "s,^[[:space:]]*$line2,," -e '/./!d' -i xincludes/$PKG.xinc.tmp
# Write the XInclude
echo -e "$line2" >> xincludes/$PKG.xinc.tmp
done
fi
fi
done
#------------------
if [[ "$PKG" = "xorg7" ]] ; then
# Add their XInclude
PKG_XML=`grep "^$PKG[[:space:]]" ../packages | cut -f2`
echo -e " $ENTRY_START$PKG_XML$ENTRY_END" >> xincludes/$PKG.xinc.tmp
fi
#------------------
mv xincludes/$PKG.xinc.tmp xincludes/$PKG.xinc
echo -e "Using the new xinclude file for PKG $PKG" >> depure.txt
IFS=$'\x0A'
for line in `cat xincludes/$PKG.xinc` ; do
IFS=$saveIFS
# Remove the Xinclude entry if found.
sed -e "s,^[[:space:]]*$line,," -e '/./!d' -i $TARGET-index.xml.tmp
# Write the XInclude
echo -e "$line" >> $TARGET-index.xml.tmp
done
echo -e "\nEnd loop for PKG $PKG\n" >> depure.txt
}