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o ;je# � @ s� d Z ddlmZmZmZ ddlmZ ddlmZm Z ddl m Z ddl m Z dZG dd � d �ZG d d � d �ZG d d � d �ZG dd� d�Zdd� ZG dd� deee�ZdS )z8Contains implementations of database retrieveing objects� )�join� LazyMixin� hex_to_bin)� force_text)� BadObject�AmbiguousObjectName)�chain)�reduce)� ObjectDBR� ObjectDBW� FileDBBase� CompoundDB� CachingDBc @ s@ e Zd ZdZdd� Zdd� Zdd� Zdd � Zd d � Zd d � Z dS )r zkDefines an interface for object database lookup. Objects are identified either by their 20 byte bin shac C � | j S �N)Zhas_obj��self�sha� r �A/opt/saltstack/salt/lib/python3.10/site-packages/gitdb/db/base.py� __contains__ s zObjectDBR.__contains__c C � t d��)z� Whether the object identified by the given 20 bytes binary sha is contained in the database :return: True if the object identified by the given 20 bytes binary sha is contained in the database� To be implemented in subclass��NotImplementedErrorr r r r � has_object" s zObjectDBR.has_objectc C r )zW :return: OInfo instance :param sha: bytes binary sha :raise BadObject:r r r r r r �info+ � zObjectDBR.infoc C r )z[:return: OStream instance :param sha: 20 bytes binary sha :raise BadObject:r r r r r r �stream1 r zObjectDBR.streamc C � t � �)z+:return: amount of objects in this databaser �r r r r �size7 � zObjectDBR.sizec C r )zGReturn iterator yielding 20 byte shas for all objects in this data baser r r r r �sha_iter; r" zObjectDBR.sha_iterN) �__name__� __module__� __qualname__�__doc__r r r r r! r# r r r r r s r c @ s0 e Zd ZdZdd� Zdd� Zdd� Zdd � Zd S ) r z6Defines an interface to create objects in the databasec O s d | _ d S r �Z_ostream)r �args�kwargsr r r �__init__F s zObjectDBW.__init__c C s | j }|| _ |S )ab Adjusts the stream to which all data should be sent when storing new objects :param stream: if not None, the stream to use, if None the default stream will be used. :return: previously installed stream, or None if there was no override :raise TypeError: if the stream doesn't have the supported functionalityr( )r r Zcstreamr r r � set_ostreamJ s zObjectDBW.set_ostreamc C r )z� Return the output stream :return: overridden output stream this instance will write to, or None if it will write to the default streamr( r r r r �ostreamV s zObjectDBW.ostreamc C r )a� Create a new object in the database :return: the input istream object with its sha set to its corresponding value :param istream: IStream compatible instance. If its sha is already set to a value, the object will just be stored in the our database format, in which case the input stream is expected to be in object format ( header + contents ). :raise IOError: if data could not be writtenr r )r Zistreamr r r �store^ s zObjectDBW.storeN)r$ r% r& r' r+ r, r- r. r r r r r B s r c s0 e Zd ZdZ� fdd�Zdd� Zdd� Z� ZS )r z}Provides basic facilities to retrieve files of interest, including caching facilities to help mapping hexsha's to objectsc s t � �� || _dS )aY Initialize this instance to look for its files at the given root path All subsequent operations will be relative to this path :raise InvalidDBRoot: **Note:** The base will not perform any accessablity checking as the base might not yet be accessible, but become accessible before the first access.N)�superr+ � _root_path)r � root_path�� __class__r r r+ q s zFileDBBase.__init__c C r )z':return: path at which this db operates)r0 r r r r r1 | r" zFileDBBase.root_pathc C s t | jt|��S )z~ :return: the given relative path relative to our database root, allowing to pontentially access datafiles)r r0 r )r Z rela_pathr r r �db_path� s zFileDBBase.db_path)r$ r% r& r' r+ r1 r4 � __classcell__r r r2 r r l s r c @ s e Zd ZdZddd�ZdS )r z/A database which uses caches to speed-up accessFc C s dS )ar Call this method if the underlying data changed to trigger an update of the internal caching structures. :param force: if True, the update must be performed. Otherwise the implementation may decide not to perform an update if it thinks nothing has changed. :return: True if an update was performed as something change indeedNr )r �forcer r r � update_cache� s zCachingDB.update_cacheN�F)r$ r% r& r' r7 r r r r r � s r c C sV t | t�r$| �� }|�dd� |D �� dd� |D �D ]}t||� qdS |�| � dS )zfFill output list with database from db, in order. Deals with Loose, Packed and compound databases.c s s � | ] }t |t�s|V qd S r �� isinstancer ��.0�dbr r r � <genexpr>� � � z'_databases_recursive.<locals>.<genexpr>c s s � | ] }t |t�r|V qd S r r9 r; r r r r> � r? N)r: r � databases�extend�_databases_recursive�append)Zdatabase�outputZdbsZcdbr r r rB � s �rB c sj e Zd ZdZ� fdd�Zdd� Zdd� Zdd � Zd d � Zd d � Z dd� Z dd� Z ddd�Z dd� Z � ZS )r z�A database which delegates calls to sub-databases. Databases are stored in the lazy-loaded _dbs attribute. Define _set_cache_ to update it with your databasesc s8 |dkr t � | _d S |dkrt� | _d S t� �|� d S )N�_dbs� _db_cache)�listrE �dictrF r/ � _set_cache_)r �attrr2 r r rI � s zCompoundDB._set_cache_c C sP z| j | W S ty Y nw | jD ]}|�|�r#|| j |< | S qt|��)zL:return: database containing the given 20 byte sha :raise BadObject:)rF �KeyErrorrE r r )r r r= r r r � _db_query� s � �zCompoundDB._db_queryc C s& z| � |� W dS ty Y dS w )NTF)rL r r r r r r � s �zCompoundDB.has_objectc C � | � |��|�S r )rL r r r r r r � � zCompoundDB.infoc C rM r )rL r r r r r r � rN zCompoundDB.streamc C s t dd� dd� | jD �d�S )z.:return: total size of all contained databasesc S s | | S r r )�x�yr r r �<lambda>� s z!CompoundDB.size.<locals>.<lambda>c s � � | ]}|� � V qd S r )r! r; r r r r> � � � z"CompoundDB.size.<locals>.<genexpr>r )r rE r r r r r! � s zCompoundDB.sizec C s t dd� | jD �� S )Nc s rR r )r# r; r r r r> � rS z&CompoundDB.sha_iter.<locals>.<genexpr>)r rE r r r r r# � s zCompoundDB.sha_iterc C s t | j�S )z7:return: tuple of database instances we use for lookups)�tuplerE r r r r r@ � s zCompoundDB.databasesFc C s6 | j �� d}| jD ]}t|t�r||�|�O }q |S )NF)rF �clearrE r: r r7 )r r6 �statr= r r r r7 � s �zCompoundDB.update_cachec C s� t � }t| |� t|�}t|�}|d dkr t|d �}nt|�}d}|D ]/}d}zt|d�r5|�|�}n|�||�}W n tyE Y q%w |rT|rR||krRt |��|}q%|s[t|��|S )z� :return: 20 byte binary sha1 from the given less-than-40 byte hexsha (bytes or str) :param partial_hexsha: hexsha with less than 40 byte :raise AmbiguousObjectName: � r �0N�partial_to_complete_sha_hex) rG rB r �lenr �hasattrrY Zpartial_to_complete_shar r )r Zpartial_hexshar@ Zlen_partial_hexshaZpartial_binsha� candidater= Z full_bin_shar r r rY � s4 � � �z&CompoundDB.partial_to_complete_sha_hexr8 )r$ r% r& r' rI rL r r r r! r# r@ r7 rY r5 r r r2 r r � s r N)r' Z gitdb.utilr r r Zgitdb.utils.encodingr Z gitdb.excr r � itertoolsr � functoolsr �__all__r r r r rB r r r r r �<module> s )*
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