diff options
Diffstat (limited to 'eclass/python-utils-r1.eclass')
| -rw-r--r-- | eclass/python-utils-r1.eclass | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/eclass/python-utils-r1.eclass b/eclass/python-utils-r1.eclass index 7830323abc05..89a7cbf2a18b 100644 --- a/eclass/python-utils-r1.eclass +++ b/eclass/python-utils-r1.eclass @@ -84,6 +84,55 @@ _python_impl_supported() { esac } +# @FUNCTION: _python_set_impls +# @INTERNAL +# @DESCRIPTION: +# Check PYTHON_COMPAT for well-formedness and validity, then set +# two global variables: +# +# - _PYTHON_SUPPORTED_IMPLS containing valid implementations supported +# by the ebuild (PYTHON_COMPAT - dead implementations), +# +# - and _PYTHON_UNSUPPORTED_IMPLS containing valid implementations that +# are not supported by the ebuild. +# +# Implementations in both variables are ordered using the pre-defined +# eclass implementation ordering. +# +# This function must be called once in global scope by an eclass +# utilizing PYTHON_COMPAT. +_python_set_impls() { + local i + + if ! declare -p PYTHON_COMPAT &>/dev/null; then + die 'PYTHON_COMPAT not declared.' + fi + if [[ $(declare -p PYTHON_COMPAT) != "declare -a"* ]]; then + die 'PYTHON_COMPAT must be an array.' + fi + for i in "${PYTHON_COMPAT[@]}"; do + # trigger validity checks + _python_impl_supported "${i}" + done + + _PYTHON_SUPPORTED_IMPLS=() + _PYTHON_UNSUPPORTED_IMPLS=() + + for i in "${_PYTHON_ALL_IMPLS[@]}"; do + if has "${i}" "${PYTHON_COMPAT[@]}"; then + _PYTHON_SUPPORTED_IMPLS+=( "${i}" ) + else + _PYTHON_UNSUPPORTED_IMPLS+=( "${i}" ) + fi + done + + if [[ ${#_PYTHON_SUPPORTED_IMPLS[@]} -eq 0 ]]; then + die "No supported implementation in PYTHON_COMPAT." + fi + + readonly _PYTHON_SUPPORTED_IMPLS _PYTHON_UNSUPPORTED_IMPLS +} + # @ECLASS-VARIABLE: PYTHON # @DEFAULT_UNSET # @DESCRIPTION: |