diff options
Diffstat (limited to 'pym/portage/__init__.py')
| -rw-r--r-- | pym/portage/__init__.py | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/pym/portage/__init__.py b/pym/portage/__init__.py index f56c64471..5c1cc1735 100644 --- a/pym/portage/__init__.py +++ b/pym/portage/__init__.py @@ -1790,6 +1790,9 @@ class config(object): self["FEATURES"] = " ".join(sorted(self.features)) self.backup_changes("FEATURES") + global _validate_cache_for_unsupported_eapis + if 'parse-eapi-ebuild-head' in self.features: + _validate_cache_for_unsupported_eapis = False self._init_dirs() @@ -5024,6 +5027,30 @@ def eapi_is_supported(eapi): return False return eapi <= portage.const.EAPI +# Generally, it's best not to assume that cache entries for unsupported EAPIs +# can be validated. However, the current package manager specification does not +# guarantee that that the EAPI can be parsed without sourcing the ebuild, so +# it's too costly to discard existing cache entries for unsupported EAPIs. +# Therefore, by default, assume that cache entries for unsupported EAPIs can be +# validated. If FEATURES=parse-eapi-* is enabled, this assumption is discarded +# since the EAPI can be determined without the incurring the cost of sourcing +# the ebuild. +_validate_cache_for_unsupported_eapis = True + +_parse_eapi_ebuild_head_re = re.compile(r'^EAPI=[\'"]?([^\'"]*)') +_parse_eapi_ebuild_head_max_lines = 30 + +def _parse_eapi_ebuild_head(f): + count = 0 + for line in f: + m = _parse_eapi_ebuild_head_re.match(line) + if m is not None: + return m.group(1).strip() + count += 1 + if count >= _parse_eapi_ebuild_head_max_lines: + break + return '0' + def doebuild_environment(myebuild, mydo, myroot, mysettings, debug, use_cache, mydbapi): ebuild_path = os.path.abspath(myebuild) @@ -5096,6 +5123,15 @@ def doebuild_environment(myebuild, mydo, myroot, mysettings, debug, use_cache, m if portage.util.noiselimit < 0: mysettings["PORTAGE_QUIET"] = "1" + if mydo == 'depend' and \ + 'EAPI' not in mysettings.configdict['pkg'] and \ + 'parse-eapi-ebuild-head' in mysettings.features: + eapi = _parse_eapi_ebuild_head(codecs.open(ebuild_path, + mode='r', encoding='utf_8', errors='replace')) + if not eapi_is_supported(eapi): + raise portage.exception.UnsupportedAPIException(mycpv, eapi) + mysettings.configdict['pkg']['EAPI'] = eapi + if mydo != "depend": # Metadata vars such as EAPI and RESTRICT are # set by the above config.setcpv() call. |