bin/bashrc-functions.sh

   1 #!/bin/bash
   2 # Copyright 1999-2013 Gentoo Foundation
   3 # Distributed under the terms of the GNU General Public License v2
   4
   5 portageq() {
   6         PYTHONPATH=${PORTAGE_PYTHONPATH:-${PORTAGE_PYM_PATH}}\
   7         "${PORTAGE_PYTHON:-/usr/bin/python}" "${PORTAGE_BIN_PATH}/portageq" "$@"
   8 }
   9
  10 register_die_hook() {
  11         local x
  12         for x in $* ; do
  13                 has $x $EBUILD_DEATH_HOOKS || \
  14                         export EBUILD_DEATH_HOOKS="$EBUILD_DEATH_HOOKS $x"
  15         done
  16 }
  17
  18 register_success_hook() {
  19         local x
  20         for x in $* ; do
  21                 has $x $EBUILD_SUCCESS_HOOKS || \
  22                         export EBUILD_SUCCESS_HOOKS="$EBUILD_SUCCESS_HOOKS $x"
  23         done
  24 }
  25
  26 __strip_duplicate_slashes() {
  27         if [[ -n $1 ]] ; then
  28                 local removed=$1
  29                 while [[ ${removed} == *//* ]] ; do
  30                         removed=${removed//\/\///}
  31                 done
  32                 echo "${removed}"
  33         fi
  34 }
  35
  36 KV_major() {
  37         [[ -z $1 ]] && return 1
  38
  39         local KV=$@
  40         echo "${KV%%.*}"
  41 }
  42
  43 KV_minor() {
  44         [[ -z $1 ]] && return 1
  45
  46         local KV=$@
  47         KV=${KV#*.}
  48         echo "${KV%%.*}"
  49 }
  50
  51 KV_micro() {
  52         [[ -z $1 ]] && return 1
  53
  54         local KV=$@
  55         KV=${KV#*.*.}
  56         echo "${KV%%[^[:digit:]]*}"
  57 }
  58
  59 KV_to_int() {
  60         [[ -z $1 ]] && return 1
  61
  62         local KV_MAJOR=$(KV_major "$1")
  63         local KV_MINOR=$(KV_minor "$1")
  64         local KV_MICRO=$(KV_micro "$1")
  65         local KV_int=$(( KV_MAJOR * 65536 + KV_MINOR * 256 + KV_MICRO ))
  66
  67         # We make version 2.2.0 the minimum version we will handle as
  68         # a sanity check ... if its less, we fail ...
  69         if [[ ${KV_int} -ge 131584 ]] ; then
  70                 echo "${KV_int}"
  71                 return 0
  72         fi
  73
  74         return 1
  75 }
  76
  77 _RC_GET_KV_CACHE=""
  78 get_KV() {
  79         [[ -z ${_RC_GET_KV_CACHE} ]] \
  80                 && _RC_GET_KV_CACHE=$(uname -r)
  81
  82         echo $(KV_to_int "${_RC_GET_KV_CACHE}")
  83
  84         return $?
  85 }