Test our package naming proposal for debian

test-dpkg-version-naming.bash

#!/bin/bash
##
# A script to test our debian package naming policy.
#
# This script uses `dpkg --compare-versions` to test that provided 
# sequences of package names are considered to be in ascending order 
# by Debian's tools.
#
# Author:   Marc Siegel <marc.siegel@timgroup.com>
# Modified: 2013-07-30
##

##
# Config: arrays of versions to test
##

declare -a SEQ1=(
  play-2.0.4
  play-2.0.5~~YD1
  play-2.0.5~~YD2
  play-2.0.5~~YD3
  play-2.0.5~RC1
  play-2.0.5~RC2~YD1
  play-2.0.5~RC2
  play-2.0.5
)

declare -a SEQ2=(
  play-2.0.5~~YD3-youdevise1
  play-2.0.5~~YD3-youdevise2
  play-2.0.5~~YD3-youdevise3
  play-2.0.5~RC1-youdevise1
  play-2.0.5~RC1-youdevise2
  play-2.0.5~RC2~YD1-youdevise2
  play-2.0.5~RC2-youdevise1
)

# All sequences to test
declare -a SEQS=(SEQ1[@] SEQ2[@])

##
# Test if all versions in the sequences are ascending
##

# Return 0 if all were ascending
ret=0

# Function to test that a sequence is ascending
test_seq ()
{
  declare -a sequence=("${!1}") # extract first arg as an array
  
  echo "Testing whether the following versions form an ascending sequence for dpkg:"
  for n in "${sequence[@]}"; do 
    echo "  $n"
  done
  echo
  
  let "countMinusOne=${#sequence[@]} - 1"
  index=0

  while [ "$index" -lt "$countMinusOne" ]; do  
    x=${sequence[$index]}
    y=${sequence[$index + 1]}
    a=$(echo $x | sed 's/\(^[[:alpha:]\-]*\)//g') # strip name ('play-') prefix
    b=$(echo $y | sed 's/\(^[[:alpha:]\-]*\)//g') # strip name ('play-') prefix

    test_pair $a $b

    let "index = $index + 1"
  done

  echo -e "\n"
}

# Function to test that a given pair is ascending
test_pair ()
{
  a="$1"
  b="$2"

  dpkg --compare-versions "$b" gt "$a"
  r=$?
  if [ $r -ne 0 ]; then msg="no"; else msg="yes"; fi
  echo "$b $a $msg" | awk '{ printf "Is %-24s >    %-25s? %-3s\n", $1, $2, $3 }'

  if [ $r -ne 0 ]; then ret=1; fi
}

# Test all sequences
for s in "${SEQS[@]}"; do
  test_seq $s
done

# Results
if [ $ret -ne 0 ]; then 
  echo "Fail: not all ascending according to dpkg."
else 
  echo "Success: all ascending according to dpkg."
fi
exit $ret

test-results.txt

$ bash test-dpkg-version-naming.bash
Testing whether the following versions form an ascending sequence for dpkg:
  play-2.0.4
  play-2.0.5~~YD1
  play-2.0.5~~YD2
  play-2.0.5~~YD3
  play-2.0.5~RC1
  play-2.0.5~RC2~YD1
  play-2.0.5~RC2
  play-2.0.5

Is 2.0.5~~YD1               >    2.0.4                    ? yes
Is 2.0.5~~YD2               >    2.0.5~~YD1               ? yes
Is 2.0.5~~YD3               >    2.0.5~~YD2               ? yes
Is 2.0.5~RC1                >    2.0.5~~YD3               ? yes
Is 2.0.5~RC2~YD1            >    2.0.5~RC1                ? yes
Is 2.0.5~RC2                >    2.0.5~RC2~YD1            ? yes
Is 2.0.5                    >    2.0.5~RC2                ? yes


Testing whether the following versions form an ascending sequence for dpkg:
  play-2.0.5~~YD3-youdevise1
  play-2.0.5~~YD3-youdevise2
  play-2.0.5~~YD3-youdevise3
  play-2.0.5~RC1-youdevise1
  play-2.0.5~RC1-youdevise2
  play-2.0.5~RC2~YD1-youdevise2
  play-2.0.5~RC2-youdevise1

Is 2.0.5~~YD3-youdevise2    >    2.0.5~~YD3-youdevise1    ? yes
Is 2.0.5~~YD3-youdevise3    >    2.0.5~~YD3-youdevise2    ? yes
Is 2.0.5~RC1-youdevise1     >    2.0.5~~YD3-youdevise3    ? yes
Is 2.0.5~RC1-youdevise2     >    2.0.5~RC1-youdevise1     ? yes
Is 2.0.5~RC2~YD1-youdevise2 >    2.0.5~RC1-youdevise2     ? yes
Is 2.0.5~RC2-youdevise1     >    2.0.5~RC2~YD1-youdevise2 ? yes


Success: all ascending according to dpkg.