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ciaranm |
1.1 |
# Copyright 1999-2004 Gentoo Foundation
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# Distributed under the terms of the GNU General Public License v2
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ciaranm |
1.5 |
# $Header: /var/cvsroot/gentoo-x86/eclass/versionator.eclass,v 1.4 2005/01/02 17:08:19 ciaranm Exp $
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ciaranm |
1.1 |
#
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# Original Author: Ciaran McCreesh <ciaranm@gentoo.org>
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#
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# This eclass provides functions which simplify manipulating $PV and similar
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# variables. Most functions default to working with $PV, although other
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# values can be used.
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#
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# Simple Example 1: $PV is 1.2.3b, we want 1_2.3b:
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# MY_PV=$(replace_version_separator 1 '_' )
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#
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# Simple Example 2: $PV is 1.4.5, we want 1:
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# MY_MAJORV=$(get_major_version )
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#
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# Full list of user usable functions provided by this eclass (see the functions
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# themselves for documentation):
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# get_all_version_components ver_str
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# get_version_components ver_str
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# get_major_version ver_str
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# get_version_component_range range ver_str
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# get_after_major_version ver_str
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# replace_version_separator index newvalue ver_str
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# replace_all_version_separators newvalue ver_str
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ciaranm |
1.3 |
# delete_version_separator index ver_str
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# delete_all_version_separators ver_str
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#
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# Rather than being a number, the index parameter can be a separator character
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# such as '-', '.' or '_'. In this case, the first separator of this kind is
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# selected.
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ciaranm |
1.2 |
#
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# There's also:
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# version_is_at_least want have
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ciaranm |
1.3 |
# but it doesn't work in all cases, so only use it if you know what you're
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# doing.
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ciaranm |
1.1 |
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ECLASS=versionator
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INHERITED="$INHERITED $ECLASS"
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shopt -s extglob
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# Split up a version string into its component parts. If no parameter is
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# supplied, defaults to $PV.
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# 0.8.3 -> 0 . 8 . 3
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# 7c -> 7 c
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# 3.0_p2 -> 3 . 0 _ p2
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# 20040905 -> 20040905
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# 3.0c-r1 -> 3 . 0 c - r1
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get_all_version_components() {
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local ver_str=${1:-${PV}} result result_idx=0
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result=( )
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# sneaky cache trick cache to avoid having to parse the same thing several
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# times.
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if [[ "${VERSIONATOR_CACHE_VER_STR}" == "${ver_str}" ]] ; then
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echo ${VERSIONATOR_CACHE_RESULT}
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return
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fi
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export VERSIONATOR_CACHE_VER_STR="${ver_str}"
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while [[ -n "$ver_str" ]] ; do
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case "${ver_str:0:1}" in
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# number: parse whilst we have a number
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[[:digit:]])
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result[$result_idx]="${ver_str%%[^[:digit:]]*}"
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ver_str="${ver_str##+([[:digit:]])}"
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result_idx=$(($result_idx + 1))
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;;
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# separator: single character
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[-_.])
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result[$result_idx]="${ver_str:0:1}"
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ver_str="${ver_str:1}"
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result_idx=$(($result_idx + 1))
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;;
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# letter: grab the letters plus any following numbers
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[[:alpha:]])
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local not_match="${ver_str##+([[:alpha:]])*([[:digit:]])}"
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result[$result_idx]=${ver_str:0:$((${#ver_str} - ${#not_match}))}
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ver_str="${not_match}"
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result_idx=$(($result_idx + 1))
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;;
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# huh?
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*)
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result[$result_idx]="${ver_str:0:1}"
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ver_str="${ver_str:1}"
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result_idx=$(($result_idx + 1))
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;;
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esac
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done
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export VERSIONATOR_CACHE_RESULT="${result[@]}"
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echo ${result[@]}
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}
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# Get the important version components, excluding '.', '-' and '_'. Defaults to
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# $PV if no parameter is supplied.
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# 0.8.3 -> 0 8 3
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# 7c -> 7 c
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# 3.0_p2 -> 3 0 p2
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# 20040905 -> 20040905
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# 3.0c-r1 -> 3 0 c r1
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get_version_components() {
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local c="$(get_all_version_components "${1:-${PV}}")"
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c=( ${c[@]//[-._]/ } )
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echo ${c[@]}
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}
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# Get the major version of a value. Defaults to $PV if no parameter is supplied.
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# 0.8.3 -> 0
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# 7c -> 7
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# 3.0_p2 -> 3
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# 20040905 -> 20040905
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# 3.0c-r1 -> 3
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get_major_version() {
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local c
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c=( $(get_all_version_components "${1:-${PV}}" ) )
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echo ${c[0]}
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}
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# Get a particular component or range of components from the version. If no
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# version parameter is supplied, defaults to $PV.
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# 1 1.2.3 -> 1
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# 1-2 1.2.3 -> 1.2
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# 2- 1.2.3 -> 2.3
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get_version_component_range() {
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local c v="${2:-${PV}}" range="${1}" range_start range_end i=-1 j=0
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c=( $(get_all_version_components ${v} ) )
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range_start="${range%-*}" ; range_start="${range_start:-1}"
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range_end="${range#*-}" ; range_end="${range_end:-${#c[@]}}"
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while (( j < ${range_start} )) ; do
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i=$(($i + 1))
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[[ $i -gt ${#c[@]} ]] && return
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[[ -n "${c[${i}]//[-._]}" ]] && j=$(($j + 1))
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done
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while (( j <= ${range_end} )) ; do
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echo -n ${c[$i]}
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[[ $i -gt ${#c[@]} ]] && return
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[[ -n "${c[${i}]//[-._]}" ]] && j=$(($j + 1))
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i=$(($i + 1))
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done
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}
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# Get everything after the major version and its separator (if present) of a
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# value. Defaults to $PV if no parameter is supplied.
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# 0.8.3 -> 8.3
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# 7c -> c
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# 3.0_p2 -> 0_p2
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# 20040905 -> (empty string)
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# 3.0c-r1 -> 0c-r1
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get_after_major_version() {
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echo $(get_version_component_range 2- "${1:-PV}" )
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}
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# Replace the $1th separator with $2 in $3 (defaults to $PV if $3 is not
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# supplied). If there are fewer than $1 separators, don't change anything.
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# 1 '_' 1.2.3 -> 1_2.3
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# 2 '_' 1.2.3 -> 1.2_3
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# 1 '_' 1b-2.3 -> 1b_2.3
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ciaranm |
1.3 |
# Rather than being a number, $1 can be a separator character such as '-', '.'
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# or '_'. In this case, the first separator of this kind is selected.
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ciaranm |
1.1 |
replace_version_separator() {
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ciaranm |
1.3 |
local w i c found=0 v="${3:-${PV}}"
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w=${1:-1}
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ciaranm |
1.1 |
c=( $(get_all_version_components ${v} ) )
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ciaranm |
1.3 |
if [[ "${w//[[:digit:]]/}" == "${w}" ]] ; then
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# it's a character, not an index
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for (( i = 0 ; i < ${#c[@]} ; i = $i + 1 )) ; do
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if [[ "${c[${i}]}" == "${w}" ]] ; then
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ciaranm |
1.1 |
c[${i}]="${2}"
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break
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fi
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ciaranm |
1.3 |
done
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else
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for (( i = 0 ; i < ${#c[@]} ; i = $i + 1 )) ; do
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if [[ -n "${c[${i}]//[^-._]}" ]] ; then
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found=$(($found + 1))
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if [[ "$found" == "${w}" ]] ; then
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c[${i}]="${2}"
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break
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fi
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fi
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done
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fi
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ciaranm |
1.1 |
c=${c[@]}
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echo ${c// }
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}
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# Replace all version separators in $2 (defaults to $PV) with $1.
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# '_' 1b.2.3 -> 1b_2_3
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replace_all_version_separators() {
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local c
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c=( $(get_all_version_components "${2:-${PV}}" ) )
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c="${c[@]//[-._]/$1}"
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echo ${c// }
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}
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ciaranm |
1.4 |
# Delete the $1th separator in $2 (defaults to $PV if $2 is not supplied). If
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ciaranm |
1.3 |
# there are fewer than $1 separators, don't change anything.
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# 1 1.2.3 -> 12.3
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# 2 1.2.3 -> 1.23
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# 1 1b-2.3 -> 1b2.3
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# Rather than being a number, $1 can be a separator character such as '-', '.'
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# or '_'. In this case, the first separator of this kind is deleted.
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delete_version_separator() {
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replace_version_separator "${1}" "" "${2}"
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}
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# Delete all version separators in $1 (defaults to $PV).
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ciaranm |
1.5 |
# 1b.2.3 -> 1b23
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ciaranm |
1.3 |
delete_all_version_separators() {
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ciaranm |
1.5 |
replace_all_version_separators "" "${1}"
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ciaranm |
1.3 |
}
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ciaranm |
1.2 |
# Is $2 (defaults to $PVR) at least version $1? Intended for use in eclasses
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# only. Not very reliable, doesn't understand most things, make sure you test
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# reaaaallly well before using this. Prod ciaranm if you need it to support more
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# things... WARNING: DOES NOT HANDLE 1.2b style versions. WARNING: not very well
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# tested, needs lots of work before it's totally reliable. Use with extreme
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# caution.
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version_is_at_least() {
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local want_s="$1" have_s="${2:-${PVR}}" want_c have_c
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want_c=( $(get_version_components "$want_s" ) )
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have_c=( $(get_version_components "$have_s" ) )
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# Stage 1: compare the version numbers part.
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local done_w="" done_h="" i=0
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while [[ -z "${done_w}" ]] || [[ -z "${done_h}" ]] ; do
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local cur_w="${want_c[$i]}" cur_h="${have_c[$i]}"
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[[ -z "${cur_w##[^[:digit:]]*}" ]] && done_w="yes"
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[[ -z "${cur_h##[^[:digit:]]*}" ]] && done_h="yes"
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[[ -z "${done_w}" ]] || cur_w=0
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[[ -z "${done_h}" ]] || cur_h=0
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if [[ ${cur_w} -lt ${cur_h} ]] ; then return 0 ; fi
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if [[ ${cur_w} -gt ${cur_h} ]] ; then return 1 ; fi
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i=$(($i + 1))
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done
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| 244 |
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local part
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for part in "_alpha" "_beta" "_pre" "_rc" "_p" "-r" ; do
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local part_w= part_h=
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| 248 |
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for (( i = 0 ; i < ${#want_c[@]} ; i = $i + 1 )) ; do
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| 249 |
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if [[ -z "${want_c[$i]##${part#[-._]}*}" ]] ; then
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| 250 |
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part_w="${want_c[$i]##${part#[-._]}}"
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| 251 |
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break
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fi
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| 253 |
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done
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| 254 |
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for (( i = 0 ; i < ${#have_c[@]} ; i = $i + 1 )) ; do
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| 255 |
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if [[ -z "${have_c[$i]##${part#[-._]}*}" ]] ; then
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| 256 |
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part_h="${have_c[$i]##${part#[-._]}}"
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| 257 |
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break
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| 258 |
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fi
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| 259 |
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done
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| 260 |
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| 261 |
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if [[ "${part}" == "_p" ]] || [[ "${part}" == "-r" ]] ; then
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| 262 |
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# if present in neither want nor have, go to the next item
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| 263 |
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[[ -z "${part_w}" ]] && [[ -z "${part_h}" ]] && continue
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| 264 |
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| 265 |
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[[ -z "${part_w}" ]] && [[ -n "${part_h}" ]] && return 0
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| 266 |
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[[ -n "${part_w}" ]] && [[ -z "${part_h}" ]] && return 1
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| 267 |
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| 268 |
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if [[ ${part_w} -lt ${part_h} ]] ; then return 0 ; fi
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| 269 |
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if [[ ${part_w} -gt ${part_h} ]] ; then return 1 ; fi
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| 270 |
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| 271 |
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else
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| 272 |
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# if present in neither want nor have, go to the next item
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| 273 |
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[[ -z "${part_w}" ]] && [[ -z "${part_h}" ]] && continue
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| 274 |
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| 275 |
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[[ -z "${part_w}" ]] && [[ -n "${part_h}" ]] && return 1
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| 276 |
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[[ -n "${part_w}" ]] && [[ -z "${part_h}" ]] && return 0
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| 277 |
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| 278 |
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if [[ ${part_w} -lt ${part_h} ]] ; then return 0 ; fi
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| 279 |
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if [[ ${part_w} -gt ${part_h} ]] ; then return 1 ; fi
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| 280 |
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fi
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| 281 |
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done
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| 282 |
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| 283 |
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return 0
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| 284 |
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}
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| 285 |
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| 286 |
|
|
# Test function thing. To use, source versionator.eclass and then run it.
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| 287 |
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__versionator__test_version_is_at_least() {
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| 288 |
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version_is_at_least "1.2" "1.2" || echo "test 1 failed"
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| 289 |
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version_is_at_least "1.2" "1.2.3" || echo "test 2 failed"
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| 290 |
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version_is_at_least "1.2.3" "1.2" && echo "test 3 failed"
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| 291 |
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| 292 |
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version_is_at_least "1.2_beta1" "1.2" || echo "test 4 failed"
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| 293 |
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version_is_at_least "1.2_alpha1" "1.2" || echo "test 5 failed"
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| 294 |
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version_is_at_least "1.2_alpha1" "1.2_beta1" || echo "test 6 failed"
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| 295 |
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| 296 |
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version_is_at_least "1.2" "1.2_beta1" && echo "test 7 failed"
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| 297 |
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version_is_at_least "1.2" "1.2_alpha1" && echo "test 8 failed"
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| 298 |
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version_is_at_least "1.2_beta1" "1.2_alpha1" && echo "test 9 failed"
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| 299 |
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| 300 |
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version_is_at_least "1.2_beta1" "1.2_beta1" || echo "test 10 failed"
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| 301 |
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version_is_at_least "1.2_beta2" "1.2_beta1" && echo "test 11 failed"
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| 302 |
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version_is_at_least "1.2_beta2" "1.2_beta3" || echo "test 12 failed"
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| 303 |
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|
|
| 304 |
|
|
version_is_at_least "1.2-r1" "1.2" && echo "test 13 failed"
|
| 305 |
|
|
version_is_at_least "1.2" "1.2-r1" || echo "test 14 failed"
|
| 306 |
|
|
version_is_at_least "1.2-r1" "1.3" || echo "test 15 failed"
|
| 307 |
|
|
version_is_at_least "1.2-r1" "1.2-r2" || echo "test 16 failed"
|
| 308 |
|
|
version_is_at_least "1.2-r3" "1.2-r2" && echo "test 17 failed"
|
| 309 |
|
|
|
| 310 |
|
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version_is_at_least "1.2-r1" "1.2_beta2-r3" && echo "test 18 failed"
|
| 311 |
|
|
version_is_at_least "1.2-r1" "1.3_beta2-r3" || echo "test 19 failed"
|
| 312 |
|
|
return 0
|
| 313 |
|
|
}
|
| 314 |
|
|
|
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| 
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