58 lines
1.7 KiB
Diff
58 lines
1.7 KiB
Diff
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From 5767201eaf7d2265066d17cd5b97691cbb191e3b Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Amadeusz=20=C5=BBo=C5=82nowski?= <aidecoe@aidecoe.name>
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Date: Thu, 26 Jul 2012 15:05:25 +0200
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Subject: [PATCH] dracut-lib: new functions: listlist and are_lists_eq
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listlist is like strstr for lists with specified separator and
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are_lists_eq uses listlist to check equality of specified lists.
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---
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modules.d/99base/dracut-lib.sh | 38 ++++++++++++++++++++++++++++++++++++++
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1 file changed, 38 insertions(+)
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diff --git a/modules.d/99base/dracut-lib.sh b/modules.d/99base/dracut-lib.sh
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index 786661e..2eb1224 100755
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--- a/modules.d/99base/dracut-lib.sh
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+++ b/modules.d/99base/dracut-lib.sh
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@@ -906,3 +906,41 @@ export_n()
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[ -n "$val" ] && eval $var=\"$val\"
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done
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}
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+
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+# returns OK if list1 contains all elements of list2, i.e. checks if list2 is a
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+# sublist of list1. An order and a duplication doesn't matter.
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+#
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+# $1 = separator
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+# $2 = list1
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+# $3 = list2
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+# $4 = ignore values, separated by $1
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+listlist() {
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+ local _sep="$1"
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+ local _list="${_sep}${2}${_sep}"
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+ local _sublist="$3"
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+ [ -n "$4" ] && local _iglist="${_sep}${4}${_sep}"
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+ local IFS="$_sep"
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+ local _v
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+
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+ [ "$_list" = "$_sublist" ] && return 0
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+
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+ for _v in $_sublist; do
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+ if [ -n "$_v" ] && ! ( [ -n "$_iglist" ] && strstr "$_iglist" "$_v" )
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+ then
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+ strstr "$_list" "$_v" || return 1
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+ fi
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+ done
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+
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+ return 0
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+}
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+
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+# returns OK if both lists contain the same values. An order and a duplication
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+# doesn't matter.
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+#
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+# $1 = separator
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+# $2 = list1
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+# $3 = list2
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+# $4 = ignore values, separated by $1
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+are_lists_eq() {
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+ listlist "$1" "$2" "$3" "$4" && listlist "$1" "$3" "$2" "$4"
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+}
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