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Diffstat (limited to 'app-admin/php-toolkit/files/php-select-modules/libsymlink.sh')
| -rw-r--r-- | app-admin/php-toolkit/files/php-select-modules/libsymlink.sh | 243 |
1 files changed, 243 insertions, 0 deletions
diff --git a/app-admin/php-toolkit/files/php-select-modules/libsymlink.sh b/app-admin/php-toolkit/files/php-select-modules/libsymlink.sh new file mode 100644 index 000000000000..fb25507c4620 --- /dev/null +++ b/app-admin/php-toolkit/files/php-select-modules/libsymlink.sh @@ -0,0 +1,243 @@ +# +# /usr/share/php-select/libsymlink.sh +# Library for managing PHP symlinks on Gentoo Linux +# +# Author Stuart Herbert +# (stuart@gentoo.org) +# +# Copyright (c) 2005 Gentoo Foundation, Inc. +# Released under v2 of the GNU General Public License +# +# ======================================================================== + +actionSet () +{ + setSymlinks +} + +actionShow () +{ + showSymlinks +} + +actionTest () +{ + testSymlinks +} + +# ------------------------------------------------------------------------ +# buildTargets() - map source files to target files +# +# $1 - php topdir to map from +# $G_SYMLINK_SOURCE - array of files to map from +# +# echo's a list of files to map to - capture and turn into an array + +buildTargets () +{ + for (( i = 0 ; i < ${#G_SYMLINK_SOURCE[@]} ; i + i + 1 )) ; do + echo "$1/${G_SYMLINK_SOURCE[$i]}" + done +} + +# ------------------------------------------------------------------------ +# choosePhpVersion() - select which version of PHP to use for our files +# +# $1 - php version required +# $G_SYMLINK_SOURCE - array of files to look for +# +# returns 0 on success, 1 on failure +# echos the path to the PHP libdir containing the files on success + +choosePhpVersion () +{ + # which PHP versions supply our files? + local choices + choices=( $(learnPhpVersions) ) + + # do we have the PHP version we want in our list of choices? + for (( i = 0 ; i < ${#choices[@]} ; i = i + 1 )) ; do + if [[ `basename ${choices[$i]}` == $1 ]] ; then + echo "${choices[$i]}" + fi + done +} + +# ------------------------------------------------------------------------ +# hasCompatiblePhpVersions() - do we have compatible PHP versions installed +# or not? + +hasCompatiblePhpVersions () +{ + # find out which compatible PHP versions are installed (if any!) + choices=$(learnPhpVersions) + + # if there are no installed php versions, we tell the user + if [[ -z $choices ]] ; then + echo "*** error: no compatible PHP version installed" + G_EXITSTATUS=$G_STATUS_NOTINSTALLED + return 1 + fi + + return 0 +} + +# ------------------------------------------------------------------------ +# learnPhpVersions() - generate a list of valid PHP versions for this +# particular machine and component +# +# $G_SYMLINK_SOURCE - array of files to look for + +learnPhpVersions () +{ + local i + local musthave + local x + local n + + # how many files are we looking for? + musthave=${#G_SYMLINK_SOURCE[@]} + + for (( i = 0 ; i < ${#G_LIBDIR[@]} ; i = i + 1 )) ; do + for x in `echo ${G_LIBDIR[$i]}/php*` ; do + (( dohave = 0 )) + + for (( n = 0 ; n < musthave ; n = n + 1 )) ; do + if [[ -f $x/${G_SYMLINK_SOURCE[$n]} ]] ; then + (( dohave = dohave + 1 )) + fi + done + + if (( dohave == musthave )) ; then + echo "$x" + fi + done + done +} + +# ------------------------------------------------------------------------ +# learnSymlinks() - generate a list of where the files are symlinked to +# +# $G_SYMLINK_TARGET - array of files to look at + +learnSymlinks () +{ + for (( i = 0 ; i < ${#G_SYMLINK_TARGET[$i]} ; i = i + 1 )) ; do + if [[ ! -e ${G_SYMLINK_TARGET[$i]} ]] ; then + echo "Not_found" + elif [[ ! -L ${G_SYMLINK_TARGET[$i]} ]] ; then + echo "Not_link" + else + echo "$(readlink ${G_SYMLINK_TARGET[$i]})" + fi + done +} + +# ------------------------------------------------------------------------ +# setSymlinks () - set our target files to link to our source files +# +# $1 - PHP version to link to +# $G_SYMLINK_SOURCE - array of files to symlink to +# $G_SYMLINK_TARGET - array of symlink targets to create + +setSymlinks () +{ + # find out which compatible PHP versions are installed (if any!) + hasCompatiblePhpVersions || return 1 + + # find the directory holding the requested PHP version + # + # if we can't find the directory, tell the user which PHP + # versions they can use with this module + + libdir=$(choosePhpVersion $G_PHPVERSION) + if [[ -z $libdir ]] ; then + echo "*** error: compatible php version not found" + echo "Compatible versions are:" + echo + + for (( i = 0 ; i < ${#choices[@]} ; i = i + 1 )) ; do + echo "* `basename ${choices[$i]}`" + done + + G_EXITSTATUS=$G_STATUS_NOTCOMPATIBLE + return 1 + fi + + # we know where the file(s) are - create the symlinks + + for (( i = 0 ; i < ${#G_SYMLINK_SOURCE[@]} ; i = i + 1 )) ; do + ln -sf ${libdir}/${G_SYMLINK_SOURCE[$i]} ${G_SYMLINK_TARGET[$i]} + done +} + +# ------------------------------------------------------------------------ +# showSymlinks () - show the files that we link to +# +# $G_SYMLINK_TARGET - array of files that may be linked + +showSymlinks () +{ + # find out which compatible PHP versions are installed (if any!) + hasCompatiblePhpVersions || return 1 + + # find out where each symlink points + files=( $(learnSymlinks) ) + + for (( i = 0 ; i < ${#files[@]} ; i = i + 1 )) ; do + if [[ ${files[$i]} == "Not_found" ]]; then + echo "${G_SYMLINK_TARGET[$i]} is not set" + if (( G_EXITSTATUS < $G_STATUS_USINGNONE )) ; then + G_EXITSTATUS=$G_STATUS_USINGNONE + fi + elif [[ ${files[$i]} == "Not_link" ]] ; then + echo "${G_SYMLINK_TARGET[$i]} is not a symlink" + if (( G_EXITSTATUS < $G_STATUS_USINGOTHER )) ; then + G_EXITSTATUS=$G_STATUS_USINGOTHER + fi + else + echo "${G_SYMLINK_TARGET[$i]} is set to ${files[$i]}" + fi + done +} + +# ------------------------------------------------------------------------ +# testSymlinks () - test symlinks for a specified PHP version +# +# $G_SYMLINK_TARGET - array of files that may be linked +# $G_PHPVERSION - PHP version to check against + +testSymlinks () +{ + # find out which compatible PHP versions are installed (if any!) + hasCompatiblePhpVersions || return 1 + + # find out where each symlink points + files=( $(learnSymlinks) ) + + for (( i = 0 ; i < ${#files[@]} ; i = i + 1 )) ; do + if [[ ${files[$i]} == "Not_found" ]]; then + echo "*** warning: ${G_SYMLINK_TARGET[$i]} does not exist" + if (( G_EXITSTATUS < $G_STATUS_USINGNONE )) ; then + G_EXITSTATUS=$G_STATUS_USINGNONE + fi + elif [[ ${files[$i]} == "Not_link" ]] ; then + echo "*** warning: ${G_SYMLINK_TARGET[$i]} is not a symlink" + if (( G_EXITSTATUS < $G_STATUS_USINGNONE )) ; then + G_EXITSTATUS=$G_STATUS_USINGNONE + fi + else + echo ${files[$i]} | grep $G_PHPVERSION > /dev/null 2>&1 + if [[ $? != 0 ]] ; then + echo "*** warning: ${G_SYMLINK_TARGET[$i]} does not use $G_PHPVERSION" + if (( G_EXITSTATUS < $G_STATUS_USINGOTHER )) ; then + G_EXITSTATUS=$G_STATUS_USINGOTHER + fi + fi + fi + done + + if [[ $G_EXITSTATUS == 0 ]] ; then + echo "Okay" + fi +} |