%h8dZddlZddlZddlZ ddlZn #e$rdZYnwxYw ddlZn#e$rddlZYnwxYwdZdedZ dZ dZ dZ d Z d Zd Zd ZGd deZdS)z Support for detecting various information from python projects metadata. Metadata can only be loaded from static files (e.g. pyproject.toml, setup.cfg, etc.) but not from setup.py due to its dynamic nature. Nz(===|==|!=|<=|>=|<|>|~=)z^(z?\d+(\.[\d\*]+)*)+$ct|D]>\}}t|} ||}n#t$r }Yd}~0d}~wwxYw|r|cS?dS)zDetect the python version requirement for a project. The directory should contain a metadata file such as pyproject.toml, setup.cfg, or .python-version. Returns the python version requirement as a string or None if not found. N)lookup_metadata_file%get_python_version_requirement_parserInvalidVersionConstraintError) directory_ metadata_fileparserversion_constrainterrs =/Users/aron/dev/rstudio/rsconnect/inst/resources/pyproject.py!detect_python_version_requirementrs1;; & &=6}EE !' !6!6  ,    HHHH   &% % % % & 4s 1 AAcdtjfd}t|S)aMGiven the directory of a project return the path of a usable metadata file. The returned value is either a list of tuples [(filename, path)] or an empty list [] if no metadata file was found. The metadata files are returned in the priority they should be processed to determine the python version requirements. c3TKdD]!}|z }|r||fV"dS)N).python-versionpyproject.toml setup.cfg)is_file)filenamepathrs r _generatez'lookup_metadata_file.._generate>sLJ ' 'Hx'D||~~ '&&&& ' ')pathlibPathlist)rrs` r rr2sC Y''I'''''   rc|jdkrtS|jdkrtS|jdkrtSt d|j)zGiven the metadata file, return the appropriate parser function. The returned function takes a pathlib.Path and returns the parsed value. rrrzUnknown metadata file type: )nameparse_pyproject_python_requiresparse_setupcfg_python_requiresparse_pyversion_python_requiresNotImplementedError)r s r rrGs\ ---..  { * *--  0 0 0..!"UAS"U"UVVVrc|}tj|}|diddS)zParse the project.requires-python field from a pyproject.toml file. Assumes that the pyproject.toml file exists, is accessible and well formatted. Returns None if the field is not found. projectzrequires-pythonN) read_texttomllibloadsget)pyproject_filecontent pyprojects r rrWsI&&((G g&&I ==B ' ' + +,=t D DDrctj}|||dddS)zParse the options.python_requires field from a setup.cfg file. Assumes that the setup.cfg file exists, is accessible and well formatted. Returns None if the field is not found. optionspython_requiresN)fallback) configparser ConfigParserreadr') setupcfg_fileconfigs r rres= & ( (F KK  ::i!2T: B BBrcht|S)zParse the python version from a .python-version file. Assumes that the .python-version file exists, is accessible and well formatted. Returns None if the field is not found. )adapt_python_requiresr$strip)pyversion_files r r r ss* !!9!9!;!;!A!A!C!C D DDrcn|d}d}d||S)zConvert a literal python version to a PEP440 constraint. Connect expects a PEP440 format, but the .python-version file can contain plain version numbers and other formats. We should convert them to the constraints that connect expects. ,c3K|D]}|}d|vsd|vsd|vrtd|d|vsd|vsd|vrtd|tjt|td |tjt |r|Vd |vrd |Vd |d dd dgz}d|VdS)N@-/z3python specific implementations are not supported: brcaz(pre-release versions are not supported: zInvalid python version: *z==.0z~=) r6rrematchVALID_VERSION_REQ_REGEXsearchPEP440_OPERATORS_REGEXjoinsplit) constraints constraints r _adapt_contraintz/adapt_python_requires.._adapt_contraintsX% , ,J#))++Jj  C:$5$5 9J9J34vjt4v4vwwwj  DJ$6$6#:K:K34k_i4k4klllx/<<D34[z4[4[\\\y/<< ,     *$$+z++++++"%**:*:3*?*?*Cse*K!L!LJ+z+++++++ , ,r)rKrJ)r-current_contraintsrNs r r5r5~sH)..s33,,,2 88$$%788 9 99rceZdZdS)rN)__name__ __module__ __qualname__rr rrsDrr)__doc__r/rrEtyping ImportErrorr%tomlrIrGrrrrrr r5 ValueErrorrrTrr rZsd MMMM FFFNNNN5K 6KKK.* W W W E E E C C CEEE$:$:$:N     J     s( 44