ó šßÈ[c@sÝdZddlZddlZddlZddlZddlZddlmZejdƒZ ej dddƒej ddd ƒej d dd ƒd „Z d „Z d„Z d„Zd„Zd„Zd„ZdS(s¶ ``fitscheck`` is a command line script based on astropy.io.fits for verifying and updating the CHECKSUM and DATASUM keywords of .fits files. ``fitscheck`` can also detect and often fix other FITS standards violations. ``fitscheck`` facilitates re-writing the non-standard checksums originally generated by astropy.io.fits with standard checksums which will interoperate with CFITSIO. ``fitscheck`` will refuse to write new checksums if the checksum keywords are missing or their values are bad. Use ``--force`` to write new checksums regardless of whether or not they currently exist or pass. Use ``--ignore-missing`` to tolerate missing checksum keywords without comment. Example uses of fitscheck: 1. Verify and update checksums, tolerating non-standard checksums, updating to standard checksum:: $ fitscheck --checksum either --write *.fits 2. Write new checksums, even if existing checksums are bad or missing:: $ fitscheck --write --force *.fits 3. Verify standard checksums and FITS compliance without changing the files:: $ fitscheck --compliance *.fits 4. Verify original nonstandard checksums only:: $ fitscheck --checksum nonstandard *.fits 5. Only check and fix compliance problems, ignoring checksums:: $ fitscheck --checksum none --compliance --write *.fits 6. Verify standard interoperable checksums:: $ fitscheck *.fits 7. Delete checksum keywords:: $ fitscheck --checksum none --write *.fits iÿÿÿÿNi(tfitst fitscheckterrortmessagesChecksum verification failedsDatasum verification failedtignoresOverwriting existing filecCsut|ƒsdg}ntjdtjdjƒƒƒ}|jdddddd d d d d dgdddd ddƒ|jdddddddtddƒ|jdddddddtddƒ|jdddd dd!dtddƒ|jd"d#dd$dd%dtddƒ|jd&d'dd(dd)dtddƒ|j|ƒ\a }t j dkrqtt _ n|S(*Ns-htusages  fitscheck [options] <.fits files...> .e.g. fitscheck example.fits Verifies and optionally re-writes the CHECKSUM and DATASUM keywords for a .fits file. Optionally detects and fixes FITS standard compliance problems. s-ks --checksumtdestt checksum_kindttypetchoicetchoiceststandardt nonstandardteithertnonethelps6Choose FITS checksum mode or none. Defaults standard.tdefaulttmetavars([standard | nonstandard | either | none]s-ws--writet write_files6Write out file checksums and/or FITS compliance fixes.tactiont store_trues-fs--forcetforces1Do file update even if original checksum was bad.s-cs --compliancet compliances-Do FITS compliance checking; fix if possible.s-is--ignore-missingtignore_missingsIgnore missing checksums.s-vs --verbosetverbosesGenerate extra output.( tlentoptparset OptionParserttextwraptdedenttstript add_optiontFalset parse_argstOPTIONSR(targstparsert fits_files((s@lib/python2.7/site-packages/astropy/io/fits/scripts/fitscheck.pythandle_options@s@         cCs_tjrtjtjƒntjtjƒtjƒ}|jtj dƒƒtj |ƒdS(Ns %(message)s( R"RtlogtsetLeveltloggingtINFOtWARNINGt StreamHandlert setFormattert Formattert addHandler(thandler((s@lib/python2.7/site-packages/astropy/io/fits/scripts/fitscheck.pyt setup_loggingus   cCsd}ytj|dtjƒ}WnYtk r}}ddjt|ƒjdƒdƒjƒ}t j dj ||ƒƒdSXtj sóxit |ƒD]X\}}|jsÆt j dj ||ƒƒdS|js”t j dj ||ƒƒdSq”Wn|st jd j |ƒƒn|S( sR Prints a message if any HDU in `filename` has a bad checksum or datasum. itchecksums.. t is BAD {!r} {}s-MISSING {!r} .. Checksum not found in HDU #{}s,MISSING {!r} .. Datasum not found in HDU #{}sOK {!r}(RtopenR"Rt UserWarningtjointstrtsplitRR'twarningtformatRt enumeratet _checksumt_datasumtinfo(tfilenameterrorsthdulisttwt remaindertithdu((s@lib/python2.7/site-packages/astropy/io/fits/scripts/fitscheck.pytverify_checksums€s(,        cCsitj|ƒ}y|jdƒWnBtjk rd}tjdj|ƒt|ƒjddƒƒdSXdS(s#Check for FITS standard compliance.t exceptionsNONCOMPLIANT {!r} .. {}s R3ii( RR4tverifyt VerifyErrorR'R9R:R7treplace(R?RAtexc((s@lib/python2.7/site-packages/astropy/io/fits/scripts/fitscheck.pytverify_complianceœs cCs}tj|dtƒ}zVy;tjr*dnd}|j|dtjdtd|ƒWntjk rinXWd|jƒXdS(sœ Sets the ``CHECKSUM`` and ``DATASUM`` keywords for each HDU of `filename`. Also updates fixes standards violations if possible and requested. tdo_not_scale_image_datat silentfixRR2t overwritet output_verifyN( RR4tTrueR"RtwritetoRRItclose(R?RARP((s@lib/python2.7/site-packages/astropy/io/fits/scripts/fitscheck.pytupdate©scCs•yat|ƒ}tjr't|ƒ}nd}tjrB|dksKtjrXt|ƒn||SWn-tk r}tj dj ||ƒƒdSXdS(sa Handle a single .fits file, returning the count of checksum and compliance errors. isEXCEPTION {!r} .. {}iN( RFR"RRLRRRTt ExceptionR'RR:(R?tchecksum_errorstcompliance_errorste((s@lib/python2.7/site-packages/astropy/io/fits/scripts/fitscheck.pyt process_file»s    cCspd}ttjdƒ}tƒx|D]}|t|ƒ7}q'W|r`tjdj|ƒƒntt |ƒƒS(sš Processes command line parameters into options and files, then checks or update FITS DATASUM and CHECKSUM keywords for the specified files. iis {} errors( R&tsystargvR1RYR'R9R:tinttbool(R@R%R?((s@lib/python2.7/site-packages/astropy/io/fits/scripts/fitscheck.pytmainÏs (t__doc__R)RRZRtwarningstRt getLoggerR'tfilterwarningsR&R1RFRLRTRYR^(((s@lib/python2.7/site-packages/astropy/io/fits/scripts/fitscheck.pyt,s"      5