mirror of
https://git.yoctoproject.org/git/opkg-utils
synced 2026-03-24 10:30:04 +01:00
234524f33d
I've attached a first attempt at this, its basically a small set of
helper scripts which OE/Poky use when working with ipks. I've applied
the various OE improvements and tweaks and removed a ton of cruft we
don't need.
78 lines
1.6 KiB
Bash
Executable File
78 lines
1.6 KiB
Bash
Executable File
#!/bin/sh
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set -e
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# This is a little experiment to see how expensive it would be to
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# compare versions in a shell script. This script is not done yet
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# and the nasiest part is still left undone, (the fact that in Debian
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# versions all letters compare less than all non-letters).
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#
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# It looks to me like version comprehension might be the feature that pushes
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# opkg from /bin/sh to compiled C code...
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if [ $# -lt 3 ]; then
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echo "
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usage: opkg-compare-versions v1 op v2
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where op in (<<, <=, =, >=, >>)
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Return value is 0 if v1 op v2 is satisfied, 1 otherwise"
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exit 2
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fi
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v1=$1
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op=$2
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v2=$3
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# Debian has a little historical problem with operators...
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may_be_equal=0
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case $op in
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'>>')
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op="-gt"
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;;
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'<<')
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op="-lt"
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;;
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'>'|'>=')
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op="-gt"
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may_be_equal=1
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;;
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'<'|'<=')
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op="-lt"
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may_be_equal=1
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;;
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'=')
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may_be_equal=1
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;;
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*)
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echo "opkg_compare_versions: Invalid operator \`$op' valid operators are (<<, <=, =, >=, >>)"
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exit 1
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;;
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esac
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if [ $may_be_equal == 1 -a $v1 == $v2 ]; then
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exit 0;
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elif [ $op == '=' ]; then
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exit 1;
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fi
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epoch1=`echo $v1 | sed -ne 's/:.*//p'`
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v1=`echo $v1 | sed -e 's/^[^:]*://'`
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epoch2=`echo $v2 | sed -ne 's/:.*//p'`
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v2=`echo $v2 | sed -e 's/^[^:]*://'`
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upstream1=`echo $v1 | sed -e '/-/s/\(.*\)-.*/\1/'`
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debian_rev1=`echo $v1 | sed -ne 's/.*-//p'`
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upstream2=`echo $v2 | sed -e '/-/s/\(.*\)-.*/\1/'`
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debian_rev2=`echo $v2 | sed -ne 's/.*-//p'`
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echo "$epoch1:$upstream1-$debian_rev1 $op $epoch2:$upstream2-$debian_rev2"
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exit 3
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[ -z $epoch1 ] && epoch1="0"
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[ -z $epoch2 ] && epoch2="0"
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if [ $epoch1 != $epoch2 ]; then
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exit `[ $epoch1 $op $epoch2 ]`
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fi
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exit 3
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