eclass/mysql_fx.eclass

   1 # Copyright 1999-2014 Gentoo Foundation
   2 # Distributed under the terms of the GNU General Public License v2
   3
   4 # Author: Francesco Riosa (Retired) <vivo@gentoo.org>
   5 # Maintainer:
   6 #       - MySQL Team <mysql-bugs@gentoo.org>
   7 #       - Luca Longinotti <chtekk@gentoo.org>
   8
   9 inherit multilib
  10
  11 #
  12 # Helper function, version (integer) may have sections separated by dots
  13 # for readability.
  14 #
  15 stripdots() {
  16         local dotver=${1:-"0"}
  17         local v=""
  18         local ret=0
  19         if [[ "${dotver/./}" != "${dotver}" ]] ; then
  20                 # dotted version number
  21                 for i in 1000000 10000 100 1 ; do
  22                         v=${dotver%%\.*}
  23                         # remove leading zeroes
  24                         while [[ ${#v} -gt 1 ]] && [[ ${v:0:1} == "0" ]] ; do v=${v#0} ; done
  25                         # increment integer version number
  26                         ret=$(( ${v} * ${i} + ${ret} ))
  27                         if [[ "${dotver}" == "${dotver/\.}" ]] ; then
  28                                 dotver=0
  29                         else
  30                                 dotver=${dotver#*\.}
  31                         fi
  32                 done
  33                 echo "${ret}"
  34         else
  35                 # already an integer
  36                 v=${dotver}
  37                 while [[ ${#v} -gt 1 ]] && [[ ${v:0:1} == "0" ]] ; do v=${v#0} ; done
  38                 echo "${v}"
  39         fi
  40 }
  41
  42 #
  43 # Check if a version number falls inside a given range.
  44 # The range includes the extremes and must be specified as
  45 # "low_version to high_version" i.e. "4.1.2 to 5.1.99.99".
  46 # Returns true if inside the range.
  47 #
  48 mysql_check_version_range() {
  49         local lbound="${1%% to *}" ; lbound=$(stripdots "${lbound}")
  50         local rbound="${1#* to }"  ; rbound=$(stripdots "${rbound}")
  51         local my_ver="${2:-"${MYSQL_VERSION_ID}"}"
  52         [[ ${lbound} -le ${my_ver} ]] && [[ ${my_ver} -le ${rbound} ]] && return 0
  53         return 1
  54 }
  55
  56 #
  57 # True if at least one applicable range is found for the patch.
  58 #
  59 _mysql_test_patch_ver_pn() {
  60         local allelements=", version, package name"
  61         # So that it fails the directory test if none of them exist
  62         local filesdir="/dev/null"
  63         for d in "${WORKDIR}/mysql-extras-${MY_EXTRAS_VER}" \
  64                 "${WORKDIR}/mysql-extras" ; do
  65                 if [ -d "${d}" ]; then
  66                         filesdir="${d}"
  67                         break
  68                 fi
  69         done
  70
  71         [[ -d "${filesdir}" ]] || die "Source dir must be a directory"
  72         local flags=$1 pname=$2
  73         if [[ $(( $flags & $(( 1 + 4 + 16 )) )) -eq 21 ]] ; then
  74                 einfo "using '${pname}'"
  75                 ln -sf "${filesdir}/${pname}" "${EPATCH_SOURCE}" || die "Couldn't move ${pname}"
  76                 return 0
  77         fi
  78
  79         [[ $(( $flags & $(( 2 + 4 )) )) -gt 0 ]] \
  80         && allelements="${allelements//", version"}"
  81
  82         [[ $(( $flags & $(( 8 + 16 )) )) -gt 0 ]] \
  83         && allelements="${allelements//", package name"}"
  84
  85         [[ -n "${allelements}" ]] && [[ "${flags}" -gt 0 ]] \
  86         && ewarn "QA notice: ${allelements} missing in ${pname} patch"
  87
  88         return 1
  89 }
  90
  91 #
  92 # Parse a "index_file" looking for patches to apply to the
  93 # current MySQL version.
  94 # If the patch applies, print its description.
  95 #
  96 mysql_mv_patches() {
  97         # So that it fails the directory test if none of them exist
  98         local filesdir="/dev/null"
  99         if [[ -z "${1}" ]]; then
 100                 for d in "${WORKDIR}/mysql-extras-${MY_EXTRAS_VER}" \
 101                         "${WORKDIR}/mysql-extras" ; do
 102                         if [ -d "${d}" ]; then
 103                                 filesdir="${d}"
 104                                 break
 105                         fi
 106                 done
 107                 [[ -d "${filesdir}" ]] || die "No patches directory found!"
 108         fi
 109
 110         for i in "$1" "${filesdir}/0000_index.txt" "${filesdir}/000_index.txt" ; do
 111                 if [ -n "$i" -a -f "$i" ]; then
 112                         local index_file="$i"
 113                         break
 114                 fi
 115         done
 116
 117         local my_ver="${2:-"${MYSQL_VERSION_ID}"}"
 118         local my_test_fx=${3:-"_mysql_test_patch_ver_pn"}
 119         _mysql_mv_patches "${index_file}" "${my_ver}" "${my_test_fx}"
 120 }
 121
 122 _mysql_mv_patches() {
 123         local index_file="${1}"
 124         local my_ver="${2}"
 125         local my_test_fx="${3}"
 126         local dsc ndsc=0 i
 127         dsc=( )
 128
 129         # Values for flags are (2^x):
 130         #  1 - one patch found
 131         #  2 - at least one version range is wrong
 132         #  4 - at least one version range is ok
 133         #  8 - at least one ${PN} did not match
 134         #  16 - at least one ${PN} has been matched
 135         local flags=0 pname=""
 136         while read row ; do
 137                 case "${row}" in
 138                         @patch\ *)
 139                                 [[ -n "${pname}" ]] \
 140                                 && ${my_test_fx} ${flags} "${pname}" \
 141                                 && for (( i=0 ; $i < $ndsc ; i++ )) ; do einfo ">    ${dsc[$i]}" ; done
 142                                 flags=1 ; ndsc=0 ; dsc=( )
 143                                 pname=${row#"@patch "}
 144                                 ;;
 145                         @ver\ *)
 146                                 if mysql_check_version_range "${row#"@ver "}" "${my_ver}" ; then
 147                                         flags=$(( ${flags} | 4 ))
 148                                 else
 149                                         flags=$(( ${flags} | 2 ))
 150                                 fi
 151                                 ;;
 152                         @pn\ *)
 153                                 if [[ ${row#"@pn "} == "${PN}" ]] ; then
 154                                         flags=$(( ${flags} | 16 ))
 155                                 else
 156                                         flags=$(( ${flags} | 8 ))
 157                                 fi
 158                                 ;;
 159                         # @use\ *) ;;
 160                         @@\ *)
 161                                 dsc[$ndsc]="${row#"@@ "}"
 162                                 (( ++ndsc ))
 163                                 ;;
 164                 esac
 165         done < "${index_file}"
 166
 167         ${my_test_fx} ${flags} "${pname}" \
 168         && for (( i=0 ; $i < $ndsc ; i++ )) ; do einfo ">    ${dsc[$i]}" ; done
 169 }
 170
 171 #
 172 # Is $2 (defaults to $MYSQL_VERSION_ID) at least version $1?
 173 # (nice) idea from versionator.eclass
 174 #
 175 mysql_version_is_at_least() {
 176         local want_s=$(stripdots "$1") have_s=$(stripdots "${2:-${MYSQL_VERSION_ID}}")
 177         [[ -z "${want_s}" ]] && die "mysql_version_is_at_least missing value to check"
 178         [[ ${want_s} -le ${have_s} ]] && return 0 || return 1
 179 }
 180
 181 #
 182 # To be called on the live filesystem, reassigning symlinks of each MySQL
 183 # library to the best version available.
 184 #
 185 mysql_lib_symlinks() {
 186
 187         local d dirlist maxdots libname libnameln libsuffix reldir
 188         libsuffix=$(get_libname)
 189
 190         einfo "libsuffix = ${libsuffix}"
 191         einfo "Updating MySQL libraries symlinks"
 192
 193         reldir="${1}"
 194         pushd "${reldir}/usr/$(get_libdir)" &> /dev/null
 195
 196         # dirlist must contain the less significative directory left
 197         dirlist="mysql"
 198
 199         # waste some time in removing and recreating symlinks
 200         for d in $dirlist ; do
 201                 for libname in $( find "${d}" -mindepth 1 -maxdepth 1 -name "*${libsuffix}*" -and -not -type "l" 2>/dev/null ) ; do
 202                         # maxdot is a limit versus infinite loop
 203                         maxdots=0
 204                         libnameln=${libname##*/}
 205                         # loop in version of the library to link it, similar to how
 206                         # libtool works
 207                         if [[ ${CHOST} == *-darwin* ]] ; then
 208                                 # macho: libname.x.y.z.dylib
 209                                 local libbasename=${libnameln%%.*}       # libname
 210                                 local libver=${libnameln#${libbasename}} # .x.y.z.dylib
 211                                 libver=${libver%${libsuffix}}            # .x.y.z
 212                                 while [[ -n ${libver} ]] && [[ ${maxdots} -lt 6 ]] ; do
 213                                         libnameln="${libbasename}${libver}${libsuffix}"
 214                                         rm -f "${libnameln}"
 215                                         ln -s "${libname}" "${libnameln}"
 216                                         (( ++maxdots ))
 217                                         libver=${libver%.*}
 218                                 done
 219                                 libnameln="${libbasename}${libsuffix}"
 220                                 rm -f "${libnameln}"
 221                                 ln -s "${libname}" "${libnameln}"
 222                         else
 223                                 # elf: libname.so.x.y.z
 224                                 while [[ ${libnameln:0-3} != '${libsuffix}' ]] && [[ ${maxdots} -lt 6 ]] ; do
 225                                         rm -f "${libnameln}"
 226                                         ln -s "${libname}" "${libnameln}"
 227                                         (( ++maxdots ))
 228                                         libnameln="${libnameln%.*}"
 229                                 done
 230                                 rm -f "${libnameln}"
 231                                 ln -s "${libname}" "${libnameln}"
 232                         fi
 233                 done
 234         done
 235
 236         popd &> /dev/null
 237 }
 238
 239 # @FUNCTION: mysql_init_vars
 240 # @DESCRIPTION:
 241 # void mysql_init_vars()
 242 # Initialize global variables
 243 # 2005-11-19 <vivo@gentoo.org>
 244 mysql_init_vars() {
 245         MY_SHAREDSTATEDIR=${MY_SHAREDSTATEDIR="${EPREFIX}/usr/share/mysql"}
 246         MY_SYSCONFDIR=${MY_SYSCONFDIR="${EPREFIX}/etc/mysql"}
 247         MY_LOCALSTATEDIR=${MY_LOCALSTATEDIR="${EPREFIX}/var/lib/mysql"}
 248         MY_LOGDIR=${MY_LOGDIR="${EPREFIX}/var/log/mysql"}
 249         MY_INCLUDEDIR=${MY_INCLUDEDIR="${EPREFIX}/usr/include/mysql"}
 250         MY_LIBDIR=${MY_LIBDIR="${EPREFIX}/usr/$(get_libdir)/mysql"}
 251
 252         if [[ -z "${MY_DATADIR}" ]] ; then
 253                 MY_DATADIR=""
 254                 if [[ -f "${MY_SYSCONFDIR}/my.cnf" ]] ; then
 255                         MY_DATADIR=`"my_print_defaults" mysqld 2>/dev/null \
 256                                 | sed -ne '/datadir/s|^--datadir=||p' \
 257                                 | tail -n1`
 258                         if [[ -z "${MY_DATADIR}" ]] ; then
 259                                 MY_DATADIR=`grep ^datadir "${MY_SYSCONFDIR}/my.cnf" \
 260                                 | sed -e 's/.*=\s*//' \
 261                                 | tail -n1`
 262                         fi
 263                 fi
 264                 if [[ -z "${MY_DATADIR}" ]] ; then
 265                         MY_DATADIR="${MY_LOCALSTATEDIR}"
 266                         einfo "Using default MY_DATADIR"
 267                 fi
 268                 elog "MySQL MY_DATADIR is ${MY_DATADIR}"
 269
 270                 if [[ -z "${PREVIOUS_DATADIR}" ]] ; then
 271                         if [[ -e "${MY_DATADIR}" ]] ; then
 272                                 # If you get this and you're wondering about it, see bug #207636
 273                                 elog "MySQL datadir found in ${MY_DATADIR}"
 274                                 elog "A new one will not be created."
 275                                 PREVIOUS_DATADIR="yes"
 276                         else
 277                                 PREVIOUS_DATADIR="no"
 278                         fi
 279                         export PREVIOUS_DATADIR
 280                 fi
 281         else
 282                 if [[ ${EBUILD_PHASE} == "config" ]]; then
 283                         local new_MY_DATADIR
 284                         new_MY_DATADIR=`"my_print_defaults" mysqld 2>/dev/null \
 285                                 | sed -ne '/datadir/s|^--datadir=||p' \
 286                                 | tail -n1`
 287
 288                         if [[ ( -n "${new_MY_DATADIR}" ) && ( "${new_MY_DATADIR}" != "${MY_DATADIR}" ) ]]; then
 289                                 ewarn "MySQL MY_DATADIR has changed"
 290                                 ewarn "from ${MY_DATADIR}"
 291                                 ewarn "to ${new_MY_DATADIR}"
 292                                 MY_DATADIR="${new_MY_DATADIR}"
 293                         fi
 294                 fi
 295         fi
 296
 297         if [ "${MY_SOURCEDIR:-unset}" == "unset" ]; then
 298                 MY_SOURCEDIR=${SERVER_URI##*/}
 299                 MY_SOURCEDIR=${MY_SOURCEDIR%.tar*}
 300         fi
 301
 302         export MY_SHAREDSTATEDIR MY_SYSCONFDIR
 303         export MY_LIBDIR MY_LOCALSTATEDIR MY_LOGDIR
 304         export MY_INCLUDEDIR MY_DATADIR MY_SOURCEDIR
 305 }