345 lines
11 KiB
Bash
345 lines
11 KiB
Bash
#!/bin/bash
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#
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# $Id$
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#
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set -e
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declare -i cntr=0
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declare -a spaceSTR=" "
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#----------------------------#
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generate_dependency_tree() { #
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#----------------------------#
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: <<inline_doc
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function: Create a dependency tree for the TARGET
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input vars: none
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externals: vars: TARGET
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PKGXML
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DEP_LEVEL
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func: do_dependencies
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modifies: vars: PKGXML
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BLFS_XML
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returns: nothing
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output: files: $TARGET.dep
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$TARGET-index.xml.tmp
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depure.txt
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on error: nothing
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on success: nothing
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inline_doc
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local ENTRY_START
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local ENTRY_END
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#---------------------
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# Create the working directory and cd into it
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if [[ -d $TARGET ]] ; then
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echo -e "\tERROR: Looks like $TARGET has been already processed."
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echo -e "\tPlease delete or rename the $TARGET directory.\n"
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exit 1
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else
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mkdir $TARGET && cd $TARGET
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fi
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#---------------------
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# XML file of the target package
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PKGXML=`grep "^$TARGET[[:space:]]" ../packages | cut -f2`
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#---------------------
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# The BLFS sources directory.
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BLFS_XML=`echo $PKGXML | sed -e 's,/.*,,'`
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if [[ ! -d ../$BLFS_XML ]] ; then
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echo -e "\tThe BLFS book sources directory is missing.\n"
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echo -e "\tExecution aborted.\n"
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cd .. && rmdir $TARGET
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exit 1
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fi
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#---------------------
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# XInclude stuff
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ENTRY_START="<xi:include xmlns:xi=\"http://www.w3.org/2003/XInclude\" href=\"../"
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ENTRY_END="\"/>"
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echo -e "\tGenerating $TARGET dependencies tree ..."
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mkdir dependencies
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#---------------------
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# Create target package dependencies list
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case $TARGET in
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# Skip the creation when all dependencies are circular.
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alsa-lib | cracklib | libexif | unixodbc ) ;;
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# Meta-packages at target level
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alsa )
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cp ../libs/alsa.dep dependencies/
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;;
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gnome-core )
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cp ../libs/gnome-core.dep dependencies/
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;;
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gnome-full )
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cp ../libs/gnome-{core,full}.dep dependencies/
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;;
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kde-core )
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cp ../libs/kde-core.dep dependencies/
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;;
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kde-full )
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cp ../libs/kde-{core,full}.dep dependencies/
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;;
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kde-koffice )
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cp ../libs/kde-{core,full,koffice}.dep dependencies/
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;;
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xorg7 )
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cp ../libs/xorg7.dep dependencies/
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;;
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* ) # Default
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xsltproc --stringparam dependencies $DEP_LEVEL \
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-o dependencies/$TARGET.dep \
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../libs/dependencies.xsl ../$PKGXML
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;;
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esac
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#---------------------
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# Start with a clean $TARGET-index.xml.tmp file
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> $TARGET-index.xml.tmp
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#---------------------
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# Write the XInclude
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case $TARGET in
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# If there is no usefull XML page, skip it.
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alsa | gnome-core | gnome-full | kde-core | kde-full | kde-koffice | xorg7) ;;
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* )
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echo -e " $ENTRY_START$PKGXML$ENTRY_END" >> $TARGET-index.xml.tmp
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;;
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esac
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#---------------------
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# If have dependencies, write its XInclude and find sub-dependencies
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if [[ -f dependencies/$TARGET.dep ]]; then
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mkdir xincludes && do_dependencies $TARGET
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fi
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echo -e "\n\t... done"
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}
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#-----------------------#
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do_dependencies() { # Loop to find sub-dependencies :::WARNING::: THIS IS A RECURVISE FUNCTION
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#-----------------------#
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: <<inline_doc
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function: Loop through all the packages and create a sub-dependency tree
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input vars: $1, package name
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externals: vars: $DEP_LEVEL
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$TARGET
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$PRINT_SERVER
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$KBR5
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$GHOSTSCRIPT
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$MAILSERVER
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file: depure.txt
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$TARGET-index.xml.tmp
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$PKG.dep
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$PKG.inc
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modifies: files
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returns: nothing
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output: file: $PKG-xinc.tmp
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depure.txt
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$TARGET-index.xml.tmp
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on error: exit
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on success:
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inline_doc
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set -e
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local PKG=$1
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local saveIFS=$IFS
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local DEP_LV=$DEP_LEVEL
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local line line2 DEP pkg_ver
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local TRACKING_DIR=/var/lib/jhalfs/BLFS
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#------------------
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# If a premade xinclude file exists, use it. If not, create one
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if [[ -f xincludes/$PKG.xinc ]] ; then
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IFS=$'\x0A'
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for line in `cat xincludes/$PKG.xinc` ; do
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IFS=$saveIFS
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# Remove the Xinclude entry if found. We want the most newer one.
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# Using double quotes to let bash expand variables.
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# Remove also the empty line created. Can not be done in one step
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# due that d requires the pattner between /, but we have a lot of /
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# inside the pattner.
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sed -e "s,^[[:space:]]*$line,," -e '/./!d' -i $TARGET-index.xml.tmp
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# Write the XInclude
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echo -e "$line" >> $TARGET-index.xml.tmp
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done
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return
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fi
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#------------------
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# Start with a clean $PKG.xinc.tmp file
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> xincludes/$PKG.xinc.tmp
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for DEP in `cat dependencies/$PKG.dep`; do
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# If DEP has been previouly installed, skip it
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pkg_ver=$(grep "^${DEP}[[:space:]]" ../packages | cut -f3)
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[ -e $TRACKING_DIR/${DEP}-$pkg_ver ] && continue
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# Special packages (a lot of hacks)
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case $DEP in
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db ) continue ;; # The proper version of DB is installed in LFS
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# Don't have their own XML file
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hal-requirements | hal-runtime-dependencies ) continue ;;
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perl-* | tk-perl ) DEP=perl-modules ;;
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# Orphan links (proper link must be created when generating the book)
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arts ) DEP=aRts ;;
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kde ) DEP=kde-core ;;
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# Set values for alternative packages
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# X is a meta-package, thus handled in another way.
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LPRng | cups ) DEP=$PRINT_SERVER ;;
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mitkrb | heimdal ) DEP=$KBR5 ;;
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gs | espgs ) DEP=$GHOSTSCRIPT ;;
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server-mail ) DEP=$MAIL_SERVER ;;
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esac
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#------------------
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# Prevent circular dependencies
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# If all dependencies are circular, the creation of the *.dep file
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# must be skipped, not placed here, to avoid that the script will bomb
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# due empty *.xinc files
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case $DEP in
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jadetex | perl-* | lynx | Links | w3m )
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# Optional dependencies are runtime only
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[[ "$PKG" = "docbook-utils" ]] && continue
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;;
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libxslt )
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# libxml2-->libxslt-->libxml2
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[[ "$PKG" = "libxml2" ]] && continue
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;;
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openldap | postgresql | $KBR5 )
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# cyrus-sasl-->several-->cyrus-sasl
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[[ "$PKG" = "cyrus-sasl" ]] && continue
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;;
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espgs )
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# sendmail-->espgs-->cups-->php-->sendmail
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[[ "$PKG" = "$MAIL_SERVER" ]] && continue
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;;
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aRts )
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# esound-->aRts-->esound
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[[ "$PKG" = "esound" ]] && continue
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;;
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gimp | sane )
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# imagemagick-->{sane}-->gimp-->imagemagick
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[[ "$PKG" = "imagemagick" ]] && continue
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;;
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ffmpeg )
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# alsa-plugins-->ffmpeg-->several-->alsa-plugins
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[[ "$PKG" = "alsa-plugins" ]] && continue
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;;
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akode )
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# Both are in the same page
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[[ "$PKG" = "kdemultimedia" ]] && continue
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;;
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esac
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#------------------
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# XML file of dependency package
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DEP_XML=`grep "^$DEP[[:space:]]" ../packages | cut -f2`
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case $DEP in
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x-window-system | alsa ) ;; # No page for that (proper link must be created when generating the book)
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xorg7 ) ;; # This page will be dump in the xorg7.xinc file
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gnome-core | kde-core | kde-full ) ;; # Invented packages
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* )
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# Remove the Xinclude entry if found
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sed -e "s,^[[:space:]]*$ENTRY_START$DEP_XML$ENTRY_END,," \
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-e '/./!d' -i xincludes/$PKG.xinc.tmp
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# Write the XInclude
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echo -e " $ENTRY_START$DEP_XML$ENTRY_END" >> xincludes/$PKG.xinc.tmp
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;;
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esac
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#------------------
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# If not already created, create its dependencies list
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if [[ ! -f dependencies/$DEP.dep ]] ; then
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case $DEP in
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# Skip the creation when all dependencies are circular.
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alsa-lib | cracklib | libexif | unixodbc ) ;;
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# Meta-packages at dependency level
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alsa )
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cp ../libs/alsa.dep dependencies/
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;;
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kde-core )
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cp ../libs/kde-core.dep dependencies/
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;;
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x-window-system ) # X11 alternatives
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echo -e "x-config\nx-setup\n$X11" > dependencies/x-window-system.dep
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;;
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xorg7 ) # At dependencies level, remove x-config and x-setup
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cp ../libs/xorg7.dep dependencies/
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sed -i '/x-config/d;/x-setup/d' dependencies/xorg7.dep
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;;
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* ) xsltproc --stringparam dependencies $DEP_LV \
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-o dependencies/$DEP.dep ../libs/dependencies.xsl ../$DEP_XML
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;;
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esac
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fi
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#------------------
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# If needed, process its dependencies
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if [[ -f dependencies/$DEP.dep ]] ; then
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# If a premade xinclude file esist, include it
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if [[ -f xincludes/$DEP.xinc ]] ; then
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IFS=$'\x0A'
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for line2 in `cat xincludes/$DEP.xinc` ; do
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IFS=$saveIFS
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# Remove the Xinclude entry if found
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sed -e "s,^[[:space:]]*$line2,," -e '/./!d' -i xincludes/$PKG.xinc.tmp
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# Write the XInclude
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echo -e "$line2" >> xincludes/$PKG.xinc.tmp
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done
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#------------------
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# Create the xinclude file
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else
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#
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# >>>>>> THIS IS A RECURSIVE FUNCTION CALL.. BEWARE OF GREMLINS. <<<<<<
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#
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# If the recursion depth is not too great this is an acceptable methodology for a script language
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# However, uncontrolled recursion will cause a seg-fault due to stack issues with local variables.
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#
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set +e
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[[ "${VERBOSITY}" > 0 ]] && echo -ne "\ncall: $((++cntr))${spaceSTR:0:$cntr}${RED}$DEP${OFF}"
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do_dependencies $DEP
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[[ "${VERBOSITY}" > 0 ]] && echo -ne "\n ret: $cntr${spaceSTR:0:$((cntr--))}${GREEN}$DEP${OFF} Using $DEP Xinc to solve $PKG"
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set -e
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# Include it when done
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IFS=$'\x0A'
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for line2 in `cat xincludes/$DEP.xinc` ; do
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IFS=$saveIFS
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# Remove the Xinclude entry if found
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sed -e "s,^[[:space:]]*$line2,," -e '/./!d' -i xincludes/$PKG.xinc.tmp
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# Write the XInclude
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echo -e "$line2" >> xincludes/$PKG.xinc.tmp
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done
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fi
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fi
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done
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#------------------
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if [[ "$PKG" = "xorg7" ]] ; then
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# Add their XInclude
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PKG_XML=${BLFS_XML}/x/installing/xorg7.xml
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echo -e " $ENTRY_START$PKG_XML$ENTRY_END" >> xincludes/$PKG.xinc.tmp
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fi
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#------------------
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mv xincludes/$PKG.xinc.tmp xincludes/$PKG.xinc
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IFS=$'\x0A'
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for line in `cat xincludes/$PKG.xinc` ; do
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IFS=$saveIFS
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# Remove the Xinclude entry if found.
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sed -e "s,^[[:space:]]*$line,," -e '/./!d' -i $TARGET-index.xml.tmp
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# Write the XInclude
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echo -e "$line" >> $TARGET-index.xml.tmp
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done
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}
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