distributable:
  url: https://www.python.org/ftp/python/{{ version }}/Python-{{ version }}.tar.xz
  strip-components: 1

versions:
  github: python/cpython/tags

dependencies:
# recommended but none are actually required
  zlib.net: 1
  sourceware.org/bzip2: 1
  openssl.org: ^1.1
  sourceware.org/libffi: 3
  libexpat.github.io: 2
  bytereef.org/mpdecimal: 2
  tukaani.org/xz: 5
  sqlite.org: 3
  gnu.org/readline: 8
  invisible-island.net/ncurses: 6

#TODO pip should be python.org/pip and installed by default (as a recommended dependent) with python
#RATIONALE it is independently versioned

build:
  dependencies:
    tea.xyz/gx/cc: c99
    tea.xyz/gx/make: '*'
    freedesktop.org/pkg-config: ^0.29

  #TODO use the diff
  script: |
    sed -i.bak -e 's|system_lib_dirs = .*|system_lib_dirs = os.getenv("LIBRARY_PATH").split(":")|' ./setup.py
    sed -i.bak -e 's|system_include_dirs = .*|system_include_dirs = os.getenv("CPATH").split(":")|' ./setup.py

    ./configure $ARGS
    make --jobs {{ hw.concurrency }}
    make install

    cd {{ prefix }}/bin
    ln -sf python{{ version.marketing }} python
    ln -sf python{{ version.marketing }}-config python-config
    ln -sf pip{{ version.marketing }} pip

  env:
    SHARE: /opt/python.org/share
    ARGS:
      - --prefix="{{ prefix }}"
      # it’s 202x
      - --enable-ipv6
      # prevent auto updates -> we control that
      # - --without-ensurepip
      - --disable-loadable-sqlite-extensions
      # use our libraries not the bundled ones
      - --with-system-expat
      - --with-system-ffi
      - --with-system-libmpdec
      # these two make our binary not portable
      #- --enable-optimizations
      #- --with-lto
      # on macOS we probably will actually want to --enable-framework
      - --enable-shared
      # put data that doesn’t vary between pythons in a consistent place
      - --datarootdir="$SHARE"
      - --datadir="$SHARE"

    #FIXME get rid of these v*
    OPENSSL_INCLUDES: /opt/openssl.org/v*/include
    OPENSSL_LDFLAGS: -L/opt/openssl.org/v*/lib'

    #FIXME we should get the include path from the ncurses `.pc` files
    CPATH: /opt/invisible-island.net/ncurses/v*/include/ncursesw:$CPATH

  # required for `setup.py` which is used to detect the libs for python’s modules
  diff: |
    diff --git a/setup.py b/setup.py
    index 85a2b26..4f2f742 100644
    --- a/setup.py
    +++ b/setup.py
    @@ -847,8 +847,8 @@ class PyBuildExt(build_ext):
                add_dir_to_list(self.compiler.include_dirs,
                                sysconfig.get_config_var("INCLUDEDIR"))

    -        system_lib_dirs = ['/lib64', '/usr/lib64', '/lib', '/usr/lib']
    -        system_include_dirs = ['/usr/include']
    +        system_lib_dirs = os.getenv("LIBRARY_PATH").split(":")
    +        system_include_dirs = os.getenv("CPATH").split(":")
            # lib_dirs and inc_dirs are used to search for files;
            # if a file is found in one of those directories, it can
            # be assumed that no additional -I,-L directives are needed.

test:
  #TODO test all modules eg zlib module
  script: |
    python --version
    pip --version