# python3_pkgversion specifies the version of Python 3 in the distro.  It can be

# a specific version (e.g. 34 in Fedora EPEL7)

%python3_pkgversion 3

# Set to /bin/true to avoid %ifdefs and %{? in specfiles

%__python3_other /bin/true

%py3_other_build /bin/true

%py3_other_install /bin/true

# Define where Python wheels will be stored and the prefix of -wheel packages

# - In Fedora we want wheel subpackages named e.g. `python-pip-wheel` that

#   install packages into `/usr/share/python-wheels`. Both names are not

#   versioned, because they're used by all Python 3 stacks.

# - In RHEL we want wheel packages named e.g. `python3-pip-wheel` and

#   `python3.11-pip-wheel` that install packages into similarly versioned

#   locations. We want each Python stack in RHEL to have their own wheels,

#   because the main python3 wheels (which we can't upgrade) will likely be

#   quite old by the time we're adding new alternate Python stacks.

# - In ELN we want to follow Fedora, because builds for ELN and Fedora rawhide

#   need to be interoperable.

%python_wheel_pkg_prefix python%{?rhel:%{!?eln:%{python3_pkgversion}}}

%python_wheel_dir %{_datadir}/%{python_wheel_pkg_prefix}-wheels

# === Macros for Build/Requires tags using Python dist tags ===

# - https://fedoraproject.org/wiki/Changes/Automatic_Provides_for_Python_RPM_Packages

# - These macros need to be in macros.python-srpm, because BuildRequires tags

#   get rendered as runtime requires into the metadata of SRPMs.

# Converts Python dist name to a canonical format

%py_dist_name() %{lua:\

        name = rpm.expand("%{?1:%{1}}");\

        canonical = string.gsub(string.lower(name), "[^%w%.]+", "-");\

        print(canonical);\

}

# Creates Python 2 dist tag(s) after converting names to canonical format

#   Needs to first put all arguments into a list, because invoking a different

#   macro (%py_dist_name) overwrites them

%py2_dist() %{lua:\

        args = {}\

        arg = 1\

        while (true) do\

                name = rpm.expand("%{?" .. arg .. ":%{" .. arg .. "}}");\

                if (name == nil or name == '') then\

                        break\

                end\

                args[arg] = name\

                arg = arg + 1\

        end\

        for arg, name in ipairs(args) do\

                canonical = rpm.expand("%py_dist_name " .. name);\

                print("python2dist(" .. canonical .. ") ");\

        end\

}

# RHEL 9+ and Fedora compatibility macro

# Only use in macro backports, not intended to be used in spec files!

# In the future, the %%python3_pkgversion macro has a dot, e.g. 3.9 or 3.11

# However, in RHEL 8 at least, it does not, e.g. 38, 39

# This is a helpful macro that determines the proper "Python version" string with dot

# from %%python3_pkgversion without actually having Python installed.

# For values other than 3X, it should expand to %%python3_pkgversion unchanged.

# Examples of %%python3_pkgversion -> %%_python3_pkgversion_with_dot:

#   3    -> 3

#   38   -> 3.8

#   39   -> 3.9

#   310  -> 3.10

#   3.12 -> 3.12

#   4    -> 4

#   412  -> 412

%_python3_pkgversion_with_dot %{lua:print((rpm.expand("%python3_pkgversion"):gsub('^3(%d)', '3.%1')))}

# Creates Python 3 dist tag(s) after converting names to canonical format

#   Needs to first put all arguments into a list, because invoking a different

#   macro (%py_dist_name) overwrites them

%py3_dist() %{lua:\

        python3_pkgversion_with_dot = rpm.expand("%_python3_pkgversion_with_dot")\

        args = {}\

        arg = 1\

        while (true) do\

                name = rpm.expand("%{?" .. arg .. ":%{" .. arg .. "}}");\

                if (name == nil or name == '') then\

                        break\

                end\

                args[arg] = name\

                arg = arg + 1\

        end\

        for arg, name in ipairs(args) do\

                canonical = rpm.expand("%py_dist_name " .. name);\

                print("python" .. python3_pkgversion_with_dot .. "dist(" .. canonical .. ") ");\

        end\

}

# Macro to replace overly complicated references to PyPI source files.

# Expands to the pythonhosted URL for a package

# Accepts zero to three arguments:

# 1:  The PyPI project name, defaulting to %srcname if it is defined, then

#     %pypi_name if it is defined, then just %name.

# 2:  The PYPI version, defaulting to %version with tildes stripped.

# 3:  The file extension, defaulting to "tar.gz".  (A period will be added

#     automatically.)

# Requires %__pypi_url and %__pypi_default_extension to be defined.

%__pypi_url https://files.pythonhosted.org/packages/source/

%__pypi_default_extension tar.gz

%pypi_source() %{lua:

    local src = rpm.expand('%1')

    local ver = rpm.expand('%2')

    local ext = rpm.expand('%3')

    local url = rpm.expand('%__pypi_url')

\

    -- If no first argument, try %srcname, then %pypi_name, then %name

    -- Note that rpm leaves macros unchanged if they are not defined.

    if src == '%1' then

        src = rpm.expand('%srcname')

    end

    if src == '%srcname' then

        src = rpm.expand('%pypi_name')

    end

    if src == '%pypi_name' then

        src = rpm.expand('%name')

    end

\

    -- If no second argument, use %version

    if ver == '%2' then

        ver = rpm.expand('%version'):gsub('~', '')

    end

\

    -- If no third argument, use the preset default extension

    if ext == '%3' then

        ext = rpm.expand('%__pypi_default_extension')

    end

\

    local first = string.sub(src, 1, 1)

\

    print(url .. first .. '/' .. src .. '/' .. src .. '-' .. ver .. '.' .. ext)

}

# Python packages in RHEL 8 should not provide unversioned python- names

# so this macro here is just a compatibility layer and only provides the given name.

%py_provides() %{lua:

    local name = rpm.expand('%1')

    if name == '%1' then

        rpm.expand('%{error:%%py_provides requires at least 1 argument, the name to provide}')

    end

    local evr = rpm.expand('%2')

    if evr == '%2' then

        evr = rpm.expand('%{?epoch:%{epoch}:}%{version}-%{release}')

    end

    print('Provides: ' .. name .. ' = ' .. evr .. '\\n')

}