Ticket #38: skeleton.1

[Meta]
RootName: @python.org/python
DisplayName: Python language runtime
ShortName: python
Skeleton-Author: Jan Niklas Hasse <jhasse@gmail.com>
Skeleton-Version: 2

[Notes]
Tests all available python executables. For example if python2.4 and python2.5
are installed, INTERFACE_VERSIONS is "2.5 2.4" and SOFTWARE_VERSIONS is set to
the output of "python2.4 -V" and "python2.5 -V".

[Test]
SOFTWARE_VERSIONS=$( locateCommand python -V 2>&1 | cut -f2 -d' ' )
if [[ "$?" != "0" ]]; then
    INTERFACE_VERSIONS=""
else
    INTERFACE_VERSIONS=$( echo $SOFTWARE_VERSIONS | awk -F. '{print $1 "." $2}' )
fi

major=1
major_max=3
default=$SOFTWARE_VERSIONS
# Test for python1.0, python1.1, ... python3.8, python3.9
while [[ "$major" -le "$major_max" ]]
do
        minor=0
        while [[ "$minor" -le "9" ]]
        do
                if hash "python$major.$minor" 2> /dev/null; then
                        v=$( locateCommand python$major.$minor -V 2>&1 | cut -f2 -d' ' )
                        if [[ "$?" == "0" && "$v" != "$default" ]]; then
                                SOFTWARE_VERSIONS="$SOFTWARE_VERSIONS $v"
                                INTERFACE_VERSIONS="$INTERFACE_VERSIONS $( echo $v | awk -F. '{print $1 "." $2}' )"
                        fi
                fi
                minor=$((minor+1))
        done
        major=$((major+1));
done