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Vendor https://github.com/cloudflare/semver_bash/tree/c1133faf0e

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Michael Vines 2018-08-17 14:57:13 -07:00
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commit 78872ffb4b
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Copyright (c) 2013, Ray Bejjani
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
The views and conclusions contained in the software and documentation are those
of the authors and should not be interpreted as representing official policies,
either expressed or implied, of the FreeBSD Project.

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semver_bash is a bash parser for semantic versioning
====================================================
[Semantic Versioning](http://semver.org/) is a set of guidelines that help keep
version and version management sane. This is a bash based parser to help manage
a project's versions. Use it from a Makefile or any scripts you use in your
project.
Usage
-----
semver_bash can be used from the command line as:
$ ./semver.sh "3.2.1" "3.2.1-alpha"
3.2.1 -> M: 3 m:2 p:1 s:
3.2.1-alpha -> M: 3 m:2 p:1 s:-alpha
3.2.1 == 3.2.1-alpha -> 1.
3.2.1 < 3.2.1-alpha -> 1.
3.2.1 > 3.2.1-alpha -> 0.
Alternatively, you can source it from within a script:
. ./semver.sh
local MAJOR=0
local MINOR=0
local PATCH=0
local SPECIAL=""
semverParseInto "1.2.3" MAJOR MINOR PATCH SPECIAL
semverParseInto "3.2.1" MAJOR MINOR PATCH SPECIAL

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#!/usr/bin/env sh
function semverParseInto() {
local RE='[^0-9]*\([0-9]*\)[.]\([0-9]*\)[.]\([0-9]*\)\([0-9A-Za-z-]*\)'
#MAJOR
eval $2=`echo $1 | sed -e "s#$RE#\1#"`
#MINOR
eval $3=`echo $1 | sed -e "s#$RE#\2#"`
#MINOR
eval $4=`echo $1 | sed -e "s#$RE#\3#"`
#SPECIAL
eval $5=`echo $1 | sed -e "s#$RE#\4#"`
}
function semverEQ() {
local MAJOR_A=0
local MINOR_A=0
local PATCH_A=0
local SPECIAL_A=0
local MAJOR_B=0
local MINOR_B=0
local PATCH_B=0
local SPECIAL_B=0
semverParseInto $1 MAJOR_A MINOR_A PATCH_A SPECIAL_A
semverParseInto $2 MAJOR_B MINOR_B PATCH_B SPECIAL_B
if [ $MAJOR_A -ne $MAJOR_B ]; then
return 1
fi
if [ $MINOR_A -ne $MINOR_B ]; then
return 1
fi
if [ $PATCH_A -ne $PATCH_B ]; then
return 1
fi
if [[ "_$SPECIAL_A" != "_$SPECIAL_B" ]]; then
return 1
fi
return 0
}
function semverLT() {
local MAJOR_A=0
local MINOR_A=0
local PATCH_A=0
local SPECIAL_A=0
local MAJOR_B=0
local MINOR_B=0
local PATCH_B=0
local SPECIAL_B=0
semverParseInto $1 MAJOR_A MINOR_A PATCH_A SPECIAL_A
semverParseInto $2 MAJOR_B MINOR_B PATCH_B SPECIAL_B
if [ $MAJOR_A -lt $MAJOR_B ]; then
return 0
fi
if [[ $MAJOR_A -le $MAJOR_B && $MINOR_A -lt $MINOR_B ]]; then
return 0
fi
if [[ $MAJOR_A -le $MAJOR_B && $MINOR_A -le $MINOR_B && $PATCH_A -lt $PATCH_B ]]; then
return 0
fi
if [[ "_$SPECIAL_A" == "_" ]] && [[ "_$SPECIAL_B" == "_" ]] ; then
return 1
fi
if [[ "_$SPECIAL_A" == "_" ]] && [[ "_$SPECIAL_B" != "_" ]] ; then
return 1
fi
if [[ "_$SPECIAL_A" != "_" ]] && [[ "_$SPECIAL_B" == "_" ]] ; then
return 0
fi
if [[ "_$SPECIAL_A" < "_$SPECIAL_B" ]]; then
return 0
fi
return 1
}
function semverGT() {
semverEQ $1 $2
local EQ=$?
semverLT $1 $2
local LT=$?
if [ $EQ -ne 0 ] && [ $LT -ne 0 ]; then
return 0
else
return 1
fi
}
if [ "___semver.sh" == "___`basename $0`" ]; then
MAJOR=0
MINOR=0
PATCH=0
SPECIAL=""
semverParseInto $1 MAJOR MINOR PATCH SPECIAL
echo "$1 -> M: $MAJOR m:$MINOR p:$PATCH s:$SPECIAL"
semverParseInto $2 MAJOR MINOR PATCH SPECIAL
echo "$2 -> M: $MAJOR m:$MINOR p:$PATCH s:$SPECIAL"
semverEQ $1 $2
echo "$1 == $2 -> $?."
semverLT $1 $2
echo "$1 < $2 -> $?."
semverGT $1 $2
echo "$1 > $2 -> $?."
fi

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#!/usr/bin/env bash
. ./semver.sh
semverTest() {
local A=R1.3.2
local B=R2.3.2
local C=R1.4.2
local D=R1.3.3
local E=R1.3.2a
local F=R1.3.2b
local G=R1.2.3
local MAJOR=0
local MINOR=0
local PATCH=0
local SPECIAL=""
semverParseInto $A MAJOR MINOR PATCH SPECIAL
echo "$A -> M:$MAJOR m:$MINOR p:$PATCH s:$SPECIAL. Expect M:1 m:3 p:2 s:"
semverParseInto $E MAJOR MINOR PATCH SPECIAL
echo "$E -> M:$MAJOR m:$MINOR p:$PATCH s:$SPECIAL. Expect M:1 m:3 p:2 s:a"
echo "Equality comparisions"
semverEQ $A $A
echo "$A == $A -> $?. Expect 0."
semverLT $A $A
echo "$A < $A -> $?. Expect 1."
semverGT $A $A
echo "$A > $A -> $?. Expect 1."
echo "Major number comparisions"
semverEQ $A $B
echo "$A == $B -> $?. Expect 1."
semverLT $A $B
echo "$A < $B -> $?. Expect 0."
semverGT $A $B
echo "$A > $B -> $?. Expect 1."
semverEQ $B $A
echo "$B == $A -> $?. Expect 1."
semverLT $B $A
echo "$B < $A -> $?. Expect 1."
semverGT $B $A
echo "$B > $A -> $?. Expect 0."
echo "Minor number comparisions"
semverEQ $A $C
echo "$A == $C -> $?. Expect 1."
semverLT $A $C
echo "$A < $C -> $?. Expect 0."
semverGT $A $C
echo "$A > $C -> $?. Expect 1."
semverEQ $C $A
echo "$C == $A -> $?. Expect 1."
semverLT $C $A
echo "$C < $A -> $?. Expect 1."
semverGT $C $A
echo "$C > $A -> $?. Expect 0."
echo "patch number comparisions"
semverEQ $A $D
echo "$A == $D -> $?. Expect 1."
semverLT $A $D
echo "$A < $D -> $?. Expect 0."
semverGT $A $D
echo "$A > $D -> $?. Expect 1."
semverEQ $D $A
echo "$D == $A -> $?. Expect 1."
semverLT $D $A
echo "$D < $A -> $?. Expect 1."
semverGT $D $A
echo "$D > $A -> $?. Expect 0."
echo "special section vs no special comparisions"
semverEQ $A $E
echo "$A == $E -> $?. Expect 1."
semverLT $A $E
echo "$A < $E -> $?. Expect 1."
semverGT $A $E
echo "$A > $E -> $?. Expect 0."
semverEQ $E $A
echo "$E == $A -> $?. Expect 1."
semverLT $E $A
echo "$E < $A -> $?. Expect 0."
semverGT $E $A
echo "$E > $A -> $?. Expect 1."
echo "special section vs special comparisions"
semverEQ $E $F
echo "$E == $F -> $?. Expect 1."
semverLT $E $F
echo "$E < $F -> $?. Expect 0."
semverGT $E $F
echo "$E > $F -> $?. Expect 1."
semverEQ $F $E
echo "$F == $E -> $?. Expect 1."
semverLT $F $E
echo "$F < $E -> $?. Expect 1."
semverGT $F $E
echo "$F > $E -> $?. Expect 0."
echo "Minor and patch number comparisons"
semverEQ $A $G
echo "$A == $G -> $?. Expect 1."
semverLT $A $G
echo "$A < $G -> $?. Expect 1."
semverGT $A $G
echo "$A > $G -> $?. Expect 0."
semverEQ $G $A
echo "$G == $A -> $?. Expect 1."
semverLT $G $A
echo "$G < $A -> $?. Expect 0."
semverGT $G $A
echo "$G > $A -> $?. Expect 1."
}
semverTest