~+hdZddlZddlmZddlZddlZddlZddlmZddlm Z ddl m Z m Z ddl mZmZddlZdZd Zd Zd ZGd d eZGddeZGddeZdZy)a Caches are used for multiple things: - To speed up asset building. Filter operations every step of the way can be cached, so that individual parts of a build that haven't changed can be reused. - Bundle definitions are cached when a bundle is built so we can determine whether they have changed and whether a rebuild is required. This data is not all stored in the same cache necessarily. The classes in this module provide the "environment.cache" object, but also serve in other places. N)path)six)BaseHunk)Filter freezedicts)md5_constructorpickle)FilesystemCache MemoryCache get_cachect|S)aEnsures ``data`` can be hashed(). Mostly needs to support dict. The other special types we use as hash keys (Hunks, Filters) already have a proper hash() method. See also ``make_md5``. Note that we do not actually hash the data for the memory cache. )r)datas B/var/www/html/venv/lib/python3.12/site-packages/webassets/cache.py make_hashablers t c~fdt}|D]}|j||jS)aMake a md5 hash based on``data``. Specifically, this knows about ``Hunk`` objects, and makes sure the actual content is hashed. This is very conservative, and raises an exception if there are data types that it does not explicitly support. This is because we had in the past some debugging headaches with the cache not working for this very reason. MD5 is faster than sha, and we don't care so much about collisions. We care enough however not to use hash(). c3Kt|tttfr|D]}|D]}|yt|trDt |j D]'}|D]}|||D]}|)yt|tr"|jjdyt|trt|jdyt|tjr|jdyt|tjr|yt|dr |j!D]}|y|djdyt|t"j$r&tt'|jdyt)dt+|zw)Nzutf-8idNonezCannot MD5 type %s) isinstancetuplelist frozensetdictsortedkeysrrencodeintstrr text_type binary_typehasattrrtypes FunctionTypehash ValueErrortype)objitemdkiwalks rr-zmake_md5..walk:sr cE43 4 -d,A1W, - d $CHHJ' /a)A')c!f.AQw. /X &((*##G, , S !c(//'* * S]] +**W% % S__ -I S$ #&&(^   [--( ( U// 0d3i.''0 01DI=> >sGG)rupdate hexdigest)rmd5r*r-s @rmake_md5r1,s<?2  C $Z 1  ==?rc< tj|S#YyxYw)z6Unpickle the string, or return ``None`` if that fails.N)r loads)strings r safe_unpickler5Ys ||F##sceZdZdZdZdZy) BaseCacheaAbstract base class. The cache key must be something that is supported by the Python hash() function. The cache value may be a string, or anything that can be pickled. Since the cache is used for multiple purposes, all webassets-internal code should always tag its keys with an id, like so: key = ("tag", actual_key) One cache instance can only be used safely with a single Environment. ct)z4Should return the cache contents, or False. NotImplementedErrorselfkeys rgetz BaseCache.getos "##rctNr9)r<r=values rsetz BaseCache.setts !##rN)__name__ __module__ __qualname____doc__r>rBrrr7r7as $ $rr7c(eZdZdZdZdZdZdZy)r aCaches stuff in the process memory. WARNING: Do NOT use this in a production environment, where you are likely going to have multiple processes serving the same app! Note that the keys are used as-is, not passed through hash() (which is a difference: http://stackoverflow.com/a/9022664/15677). However, the reason we don't is because the original value is nicer to debug. c.||_g|_i|_yr@)capacityrcache)r<rJs r__init__zMemoryCache.__init__s    rcLd|k(xsd|k(xst|t|k(S)zWReturn equality with the config values that instantiate this instance. FN)rr<others r__eq__zMemoryCache.__eq__s1~%u}%$x2e9$ %rcbtt|}|jj|dSr@)r1rrKr>r;s rr>zMemoryCache.gets&}S)*zz~~c4((rctt|}||j|< |jj ||jj ||jdtdt|j|jz }|jt|d|_|D]}|j|=y#t $rYwxYw)Nr) r1rrKrremover&appendmaxlenrJ)r<r=rA to_deleter)s rrBzMemoryCache.sets}S)* 3  II  S ! IIaAs499~dmm'C DE IIc)no.  !D 4  !   sC CCN)rCrDrErFrLrPr>rBrGrrr r xs %) !rr c.eZdZdZdZddZdZdZdZy) r z,Uses a temporary directory on the disk. Nc ||_||_yr@) directory new_file_mode)r<r[r\s rrLzFilesystemCache.__init__s"*rc`d|k(xs(|j|k(xst|t|k(S)zWReturn equality with the config values that instantiate this instance. T)r[rrNs rrPzFilesystemCache.__eq__s6u}%~~&%$x2e9$ %rctj|jdt|j|z} t |d} |j}|jt|}|tjd|z|S#t $r(}|jtjk7rYd}~yd}~wwxYw#|jwxYw)N%srbz Ignoring corrupted cache file %s)rjoinr[r1VopenIOErrorerrnoENOENTreadcloser5warningswarn)r<r=filenameferesult unpickleds rr>zFilesystemCache.gets99T^^THTVVS4I-IJ Xt$A  VVXF GGI!&)   MMB99B>Ccdt|j|z}tj|j|}t j d|z|j\}} tj|d5}tj|||jddd|j tj||jtjj|rtj|tj ||y#1swYxYw#tj|xYw)Nr_.)prefixdirwb)r1rbrrar[tempfilemkstemposfdopenr dumpflushr\chmodisfileunlinkrename)r<r=rr0rkfd temp_filenamerls rrBzFilesystemCache.setsXdffc**99T^^S1$,,C#INN$M 2t$  D!$   !!-(:(:;ww~~h' (# IImX .    IIm $ s%"D*8'DA>D*D'#D**Er@) rCrDrErFrbrLrPr>rBrGrrr r s" A+%$rr cH|syt|tr|St|trt|tr|S|durKt j |j d}t j|stj|n|}t||jS)z1Return a cache instance based on ``option``. NTz.webassets-cache) rr7r' issubclassrrar[existsrwmakedirsr cache_file_mode)optionctxr[s rr r s &)$ FD !j&Cx ~IIcmm-?@ {{9% KK " 9c&9&9 ::r)rFrwrreruri webassetsrwebassets.mergerwebassets.filterrrwebassets.utilsrr r#__all__rr1r5objectr7r r r rGrrrsl   $03  ; *Z$$.)!))!X6i6r;r