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Code Editor : cache.cpython-310.pyc
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Initialized using a directory path.c C s || _ t�tj�|d��| _d S )N�lock)�_path�apt_pkg�FileLock�os�path�join�_lock)�selfr' r r r �__init__@ s z_WrappedLock.__init__c C s: z| j �� W S tjy } z td| j|f ��d }~ww )Nz Failed to lock directory %s: %s)r) � __enter__r$ �Errorr r# )r* �er r r r, E s ���z_WrappedLock.__enter__c C s | j �|||�S �N)r) �__exit__)r* �typ�value� tracebackr r r r0 M s z_WrappedLock.__exit__N)r r r r r+ r, r0 r r r r r! ; s r! c @ s� e Zd ZdZd\dd�Zdd� Zdd � Zd d � Zd d � Zd]dd�Z dd� Z dd� Z dd� Z dd� Z dd� Zd]dd�Zd d � Zd d � Zd d!� Zd"d#� Zd$d%� Zd&d'� Zd(d)� Zd*d+� Zd^d,d-�Zed.d/� �Zed0d1� �Zed2d3� �Z d4d5� Z d]d6d7�Z d_d8d9�Z d:d;� Z < d`d=d>�Z! ? dad@dA�Z"dBdC� Z# d_dDdE�Z$dFdG� Z%dHdI� Z&dJdK� Z'dLdM� Z(dNdO� Z)dPdQ� Z*edRdS� �Z+edTdU� �Z,edVdW� �Z-edXdY� �Z.edZd[� �Z/dS )b�Cachea� Dictionary-like package cache. The APT cache file contains a hash table mapping names of binary packages to their metadata. A Cache object is the in-core representation of the same. It provides access to APTs idea of the list of available packages. The cache can be used like a mapping from package names to Package objects (although only getting items is supported). Keyword arguments: progress -- a OpProgress object, rootdir -- an alternative root directory. if that is given the system sources.list and system lists/files are not read, only file relative to the given rootdir, memonly -- build the cache in memory only. .. versionchanged:: 1.0 The cache now supports package names with special architecture qualifiers such as :all and :native. It does not export them in :meth:`keys()`, though, to keep :meth:`keys()` a unique set. NFc C sT t tjd �| _t tjd �| _t tjd �| _t tjd �| _ i | _ i | _ t � � | _t �� | _d| _d | _| �dd� | �dd� |rGtj�dd� |r�tj�|�}tj�|d �r`t�tj|d � tj�|d �rqt� tj|d � tj�d |� tj�d |d � tj�d tj� |d dd�� | � |� t� � tj� d�}t!|�| _"| �#|� d S )N����cache_post_open�_inc_changes_count�cache_post_changezDir::Cache::pkgcache� z/etc/apt/apt.confz/etc/apt/apt.conf.d�Dir�Dir::State::status�/var/lib/dpkg/statuszDir::bin::dpkg�usr�bin�dpkg�Dir::Cache::Archives)$r r$ r4 �_cache�DepCache� _depcache�PackageRecords�_records� SourceList�_list� _callbacks� _callbacks2�weakref�WeakValueDictionary�_weakref�WeakSet� _weakversions�_changes_count� _sorted_set�connect�config�setr& r' �abspath�exists�read_config_file�isdir�read_config_dirr( � _check_and_create_required_dirs� init_system�find_dirr! � _archive_lock�open)r* �progress�rootdir�memonly� archive_dirr r r r+ l sH ���� zCache.__init__c C � | j �� dS )zFix broken packages.N)rC � fix_broken�r* r r r rc � � zCache.fix_brokenc C s | j d7 _ dS )z Increase the number of changes� N)rO rd r r r r7 � � zCache._inc_changes_countc C sh ddg}g d�}|D ]}t j�|| �st �|| � q |D ]}t j�|| �s1t|| d��� q dS )zf check if the required apt directories/files are there and if not create them r< z/etc/apt/sources.list)z /var/lib/dpkgz /etc/apt/z /var/cache/apt/archives/partialz/var/lib/apt/lists/partial�wN)r& r' rU �makedirsr] �close)r* r_ �files�dirs�d�fr r r rY � s ����z%Cache._check_and_create_required_dirsc C sp || j v r| j | D ]}|dkr| �� q |� q || jv r4| j| D ]\}}}|| g|�R i |�� q#dS dS )z# internal helper to run a callback r7 N)rH r7 rI �r* �name�callback�args�kwdsr r r �_run_callbacks� s �zCache._run_callbacksc C s� |du r t jj�� }| �� || _| �d� t�|�| _ t� | j �| _ t� | j �| _ t�� | _| j�� d| _| �� tt�� �dk| _|�� | �d� dS )zY Open the package cache, after that it can be used like a dictionary N�cache_pre_openrf r6 )�aptr^ �baser rj � op_progressrt r$ r4 rA rB rC rD rE rF rG �read_main_listrP � _Cache__remap�len�get_architectures�_have_multi_arch�done)r* r^ r r r r] � s z Cache.openc C s� t | j�� �D ].}z| j| }W n ty Y qw z| j|jj|jjf |_W q ty5 | j|= Y qw t | j �D ]<}|j jj D ].}|j |j j krp|jdks]|j jdks]|j|j jkrp|j|j jkrp|j|j jkrp||_ nqB| j �|� q;dS )z�Called after cache reopen() to relocate to new cache. Relocate objects like packages and versions from the old underlying cache to the new one. r N)�listrL �keys�KeyErrorrA �_pkgrp � architecture� LookupErrorrN �package� version_list�hash�_cand�size� multi_arch�ver_str�remove)r* �key�pkg�ver�vr r r �__remap� s0 � �� ��z Cache.__remapc C s | ` ttjd�| _ dS )z Close the package cache N)rE r r$ rD rd r r r rj s z Cache.closec C s | S )z Enter the with statement r rd r r r r, s zCache.__enter__c C s | � � dS )z Exit the with statement N)rj )r* �exc_type� exc_valuer3 r r r r0 � zCache.__exit__c C sV z t |�}| j| }W n ty td| ��w | �|�s$td| ��| �|�}|S )z" look like a dictionary (get key) z!The cache has no package named %r)�strrA r� �_Cache__is_real_pkg�_rawpkg_to_pkg)r* r� �rawpkgr� r r r � __getitem__ s � zCache.__getitem__c C s" z| | W S t y | Y S w )zaReturn *self*[*key*] or *default* if *key* not in *self*. .. versionadded:: 1.1 )r� )r* r� �defaultr r r �get% s �z Cache.getc C s |j dd�}| j�|t| |��S )zgReturns the apt.Package object for an apt_pkg.Package object. .. versionadded:: 1.0.0 T��pretty)� get_fullnamerL � setdefaultr )r* r� �fullnamer r r r� 0 s zCache._rawpkg_to_pkgc c s4 � | � � D ]}t| | j| �}| j�||�V qd S r/ )r� r rA rL r� �r* �pkgnamer� r r r �__iter__: s � �zCache.__iter__c C � |j S )z8Check if the apt_pkg.Package provided is a real package.)� has_versions)r* r� r r r � __is_real_pkgE s zCache.__is_real_pkgc C � || v S r/ r �r* r� r r r �has_keyJ � z Cache.has_keyc C s, z | � | jt|� �W S ty Y dS w �NF)r� rA r� r� r� r r r � __contains__N s �zCache.__contains__c C s t | �� �S r/ )r{ r� rd r r r �__len__U � z Cache.__len__c s0 � j d u rt� fdd�� jjD ��� _ t� j �S )Nc 3 s& � | ]}� � |�r|jd d�V qdS )Tr� N)r� r� )�.0�prd r r � <genexpr>\ s � �z Cache.keys.<locals>.<genexpr>)rP �sortedrA �packagesr rd r rd r r� Y s � z Cache.keysc C s6 g }| j j}| jjD ]}||�s|�| �|�� q |S )z Get the marked changes )rC � marked_keeprA r� �appendr� )r* �changesr� r� r r r � get_changesa s �zCache.get_changesc C s | � � | j�|� | �� dS )z�Upgrade all packages. If the parameter *dist_upgrade* is True, new dependencies will be installed as well (and conflicting packages may be removed). The default value is False. N)�cache_pre_changerC �upgrader8 )r* � dist_upgrader r r r� k s z Cache.upgradec C s> | j du r td��t�| j�}t�� }|�|| j| j � |jS )z;Get the size of the packages that are required to download.N�&Cache object used after close() called) rE r r$ �PackageManagerrC �Acquire� get_archivesrG � fetch_needed)r* �pm�fetcherr r r �required_downloadw s � zCache.required_downloadc C � | j jS )z8Get the size of the additional required space on the fs.)rC �usr_sizerd r r r �required_space� � zCache.required_spacec C s^ t � }| jj}ttjtjf�}| jjD ]}||�}|r,|j s,|j |v r,|� |j dd�� q|S )zAReturn the packages not downloadable packages in reqreinst state.Tr� ) rS rC �get_candidate_ver� frozensetr$ �INSTSTATE_REINSTREQ�INSTSTATE_HOLD_REINSTREQrA r� � downloadable� inst_state�addr� )r* � reqreinstr� �statesr� �candr r r �req_reinstall_pkgs� s � �zCache.req_reinstall_pkgsc C s� |d u r t j�dd�}dd� |jD �}|r%|s%tdd�dd� |D �� ��|�� }d}d }|jD ]}|j|jkr9q0|j r=q0|d |j |j f 7 }d }q0||j krSt |��|rYt|��|S ) Nz APT::Get::AllowUnauthenticatedFc S s g | ]}|j s|�qS r )� is_trusted)r� �itemr r r � <listcomp>� s z&Cache._run_fetcher.<locals>.<listcomp>zUntrusted packages: %s� c s s � | ]}|j V qd S r/ )�desc_uri)r� �ir r r r� � s � z%Cache._run_fetcher.<locals>.<genexpr>r9 zFailed to fetch %s %s T)r$ rR �find_b�itemsr r( �run�status� STAT_DONE� STAT_IDLEr� � error_text�RESULT_CANCELLEDr r )r* r� �allow_unauthenticated� untrusted�res�failed�err_msgr� r r r � _run_fetcher� s4 �� � zCache._run_fetcherc C s4 | j du r td��|�|| j| j �sdS | �||�S )z fetch the needed archives Nr� F)rE r r� rG r� )r* r� r� r� r r r �_fetch_archives� s � zCache._fetch_archivesc C s~ |dur |dur t d��|du rtjj�� }|du r t�|�}| j� | �|t� | j �|�W d � S 1 s8w Y dS )a� Fetch the archives for all packages marked for install/upgrade. You can specify either an :class:`apt.progress.base.AcquireProgress()` object for the parameter *progress*, or specify an already existing :class:`apt_pkg.Acquire` object for the parameter *fetcher*. The return value of the function is undefined. If an error occurred, an exception of type :class:`FetchFailedException` or :class:`FetchCancelledException` is raised. The keyword-only parameter *allow_unauthenticated* specifies whether to allow unauthenticated downloads. If not specified, it defaults to the configuration option `APT::Get::AllowUnauthenticated`. .. versionadded:: 0.8.0 Nz'Takes a progress or a an Acquire object) � ValueErrorrv r^ �textr r$ r� r\ r� r� rC )r* r^ r� r� r r r �fetch_archives� s �$�zCache.fetch_archivesc C s6 z| j | }W n ty Y dS w t|jo|j �S )z0Return whether the package is a virtual package.F)rA r� �bool� has_providesr� r� r r r �is_virtual_package� s �zCache.is_virtual_packageTc C s� t � }| jj}z| j| }|jr|st|�W S W n ty% t|� Y S w |jD ]\}}} | j} |r9| || �krA|� | � | �� q)t|�S )a) Return a list of all packages providing a package. Return a list of packages which provide the virtual package of the specified name. If 'candidate_only' is False, return all packages with at least one version providing the virtual package. Otherwise, return only those packages where the candidate version provides the virtual package. If 'include_nonvirtual' is True then it will search for all packages providing pkgname, even if pkgname is not itself a virtual pkg. ) rS rC r� rA r� r r� � provides_list� parent_pkgr� r� ) r* r� �candidate_only�include_nonvirtual� providersr� �vp�provides� providesver�versionr� r r r �get_providing_packages� s � ��z Cache.get_providing_packagesr c C sf t tj�d���� |r?tj�d�}tj�d�}tj�d�}tj�dtj�|�� tj�dd� tj�dd� t� � }|� � n| j }zM|du rMt j j�� }z | j�|||�} W n tyg } zt| ��d} ~ ww | so|rot� �| W |r�tj�d|� tj�d|� tj�d|� W d � S |r�tj�d|� tj�d|� tj�d|� w w 1 s�w Y dS )a Run the equivalent of apt-get update. You probably want to call open() afterwards, in order to utilise the new cache. Otherwise, the old cache will be used which can lead to strange bugs. The first parameter *fetch_progress* may be set to an instance of apt.progress.FetchProgress, the default is apt.progress.FetchProgress() . sources_list -- Update a alternative sources.list than the default. Note that the sources.list.d directory is ignored in this case zDir::State::ListszDir::Etc::sourcelistzDir::Etc::sourcepartszAPT::List-Cleanup�xxx�0N)r! r$ rR r[ �findrS r& r' rT rF ry rG rv r^ rw r rA �update� SystemErrorr ) r* �fetch_progress�pulse_interval�raise_on_error� sources_list�old_sources_list�old_sources_list_d� old_cleanup�slistr� r. r r r r� sf � � ������� �����z Cache.updatec C s� z|� � W n ty |�� Y nw t�� }|r t�� z |�|�}W |r+t�� n|r3t�� w w z|�� W |S tyI |� � Y |S w )aY The first parameter *pm* refers to an object returned by apt_pkg.PackageManager(). The second parameter *install_progress* refers to an InstallProgress() object of the module apt.progress. This releases a system lock in newer versions, if there is any, and reestablishes it afterwards. ) � startUpdate�AttributeError� start_updater$ �pkgsystem_is_locked�pkgsystem_unlock_innerr� �pkgsystem_lock_inner� finishUpdate� finish_update)r* r� �install_progress� did_unlockr� r r r �install_archivesK s. � �� � � �zCache.install_archivesc C s� |du r t jj�� }|du rt jj�� }|dusJ �t�� �T t�| j�}t� |�}| j �6 | � |||�}| � ||�}||j krBn||jkrKtd��||jkrQntd| ��|�� q/W d � n1 sfw Y W d � n1 suw Y ||j kS )a! Apply the marked changes to the cache. The first parameter, *fetch_progress*, refers to a FetchProgress() object as found in apt.progress, the default being apt.progress.FetchProgress(). The second parameter, *install_progress*, is a apt.progress.InstallProgress() object. The keyword-only parameter *allow_unauthenticated* specifies whether to allow unauthenticated downloads. If not specified, it defaults to the configuration option `APT::Get::AllowUnauthenticated`. NTzinstallArchives() failedz<internal-error: unknown result code from InstallArchives: %s)rv r^ rw r r r$ � SystemLockr� rC r� r\ r� r �RESULT_COMPLETED� RESULT_FAILEDr� �RESULT_INCOMPLETE�shutdown)r* r� r r� r� r� r� r r r �commitm s< � �� �� � z Cache.commitc C rb )z Unmark all changes N)rC �initrd r r r �clear� re z Cache.clearc C � | � d� dS )z@ called internally if the cache has changed, emit a signal then r8 N�rt rd r r r r8 � re zCache.cache_post_changec C r )zS called internally if the cache is about to change, emit a signal then r� Nr rd r r r r� � � zCache.cache_pre_changec C s> |dkr t �dtd� || jvrg | j|< | j| �|� dS )z�Connect to a signal. .. deprecated:: 1.0 Please use connect2() instead, as this function is very likely to cause a memory leak. r7 zAconnect() likely causes a reference cycle, use connect2() instead� N)�warnings�warn�RuntimeWarningrH r� )r* rp rq r r r rQ � s � z Cache.connectc O s. || j vr g | j |< | j | �|||f� dS )a; Connect to a signal. The callback will be passed the cache as an argument, and any arguments passed to this function. Make sure that, if you pass a method of a class as your callback, your class does not contain a reference to the cache. Cyclic references to the cache can cause issues if the Cache object is replaced by a new one, because the cache keeps a lot of objects and tens of open file descriptors. currently only used for cache_{post,pre}_{changed,open}. .. versionadded:: 1.0 N)rI r� ro r r r �connect2� s zCache.connect2c C s t �| j�S )a� Return an `ActionGroup` object for the current cache. Action groups can be used to speedup actions. The action group is active as soon as it is created, and disabled when the object is deleted or when release() is called. You can use the action group as a context manager, this is the recommended way:: with cache.actiongroup(): for package in my_selected_packages: package.mark_install() This way, the action group is automatically released as soon as the with statement block is left. It also has the benefit of making it clear which parts of the code run with a action group and which don't. )r$ � ActionGrouprC rd r r r � actiongroup� s zCache.actiongroupc C sD t j�tj�d��}t �t j�|d��D ] }t�|d�r dS qdS )z�Return True if the dpkg was interrupted All dpkg operations will fail until this is fixed, the action to fix the system if dpkg got interrupted is to run 'dpkg --configure -a' as root. r; �updatesz[0-9]*TF) r& r' �dirnamer$ rR � find_file�listdirr( �fnmatch)r* �dpkg_status_dirrn r r r �dpkg_journal_dirty� s � �zCache.dpkg_journal_dirtyc C r� )z7Return the number of packages with broken dependencies.)rC � broken_countrd r r r r( r� zCache.broken_countc C r� )z2Return the number of packages marked for deletion.)rC � del_countrd r r r � delete_count r� zCache.delete_countc C r� )z6Return the number of packages marked for installation.)rC � inst_countrd r r r � install_count r� zCache.install_countc C r� )z-Return the number of packages marked as keep.)rC � keep_countrd r r r r- r� zCache.keep_count)NNFr/ )F)NNN)TF)Nr TN)0r r r r r+ rc r7 rY rt r] rz rj r, r0 r� r� r� r� r� r� r� r� r� r� r� �propertyr� r� r� r� r� r� r� r� r� r r r r8 r� rQ r r r' r( r* r, r- r r r r r4 R s� . $ � �" �! �3# �: r4 c @ s@ e Zd ZdZdd� Zdd� Zdd� Zdd � Zd d � Zd d � Z dS )�ProblemResolverzuResolve problems due to dependencies and conflicts. The first argument 'cache' is an instance of apt.Cache. c C s t �|j�| _|| _d S r/ )r$ r/ rC � _resolverrA �r* �cacher r r r+ # s zProblemResolver.__init__c C � | j �|j� dS )z'Reset the package to the default state.N)r0 r r� �r* r� r r r r ( rg zProblemResolver.clearc C r3 )z)Protect a package so it won't be removed.N)r0 �protectr� r4 r r r r5 - rg zProblemResolver.protectc C r3 )zMark a package for removal.N)r0 r� r� r4 r r r r� 2 rg zProblemResolver.removec C �" | j �� | j�� | j �� dS )z:Resolve dependencies, try to remove packages where needed.N)rA r� r0 �resolver8 rd r r r r7 7 � zProblemResolver.resolvec C r6 )z4Resolve dependencies, do not try to remove packages.N)rA r� r0 �resolve_by_keepr8 rd r r r r9 > r8 z ProblemResolver.resolve_by_keepN) r r r r r+ r r5 r� r7 r9 r r r r r/ s r/ c @ � e Zd ZdZdd� ZdS )�Filterz Filter base class c C s dS )zn Filter function, return True if the package matchs a filter criteria and False otherwise Tr �r* r� r r r �applyL s z Filter.applyN�r r r r r= r r r r r; I � r; c @ r: )�MarkedChangesFilterz( Filter that returns all marked changes c C s |j s |js |jr dS dS )NTF)�marked_install� marked_delete�marked_upgrader< r r r r= W s zMarkedChangesFilter.applyNr> r r r r r@ T r? r@ c @ r: )�InstalledFilterzMFilter that returns all installed packages. .. versionadded:: 1.0.0 c C r� r/ )� is_installedr< r r r r= e s zInstalledFilter.applyNr> r r r r rD _ s rD c @ s0 e Zd ZdZdd� Zdd� Zdd� Zdd � Zd S ) �_FilteredCacheHelperz:Helper class for FilteredCache to break a reference cycle.c C s, i | _ g | _|�d| j� |�d| j� d S )Nr8 r6 )� _filtered�_filtersr �filter_cache_post_changer1 r r r r+ m s z _FilteredCacheHelper.__init__c C s: i | _ |D ]}| jD ]}|�|�rd| j |j< nq qdS )z internal helper to refilter TN)rG rH r= rp )r* r2 r� rn r r r �_reapply_filterv s ���z$_FilteredCacheHelper._reapply_filterc C s g | _ | j �|� dS �z Set the current active filter.N)rH r� �r* �filterr r r � set_filter� s z _FilteredCacheHelper.set_filterc C s | � |� dS �z;Called internally if the cache changes, emit a signal then.N)rJ r1 r r r rI � r z-_FilteredCacheHelper.filter_cache_post_changeN)r r r r r+ rJ rN rI r r r r rF j s rF c @ sb e Zd ZdZddd�Zdd� Zdd� Zd d � Zd d � Zd d� Z dd� Z dd� Z dd� Z dd� Z dS )� FilteredCacheza A package cache that is filtered. Can work on a existing cache or create a new one Nc C s* |d u r t |�| _n|| _t| j�| _d S r/ )r4 r2 rF �_helper)r* r2 r^ r r r r+ � s zFilteredCache.__init__c C s t | jj�S r/ )r{ rQ rG rd r r r r� � r� zFilteredCache.__len__c C s | j | S r/ �r2 r� r r r r� � s zFilteredCache.__getitem__c c s � | j jD ]}| j| V qd S r/ )rQ rG r2 )r* r� r r r r� � s � �zFilteredCache.__iter__c C s | j j�� S r/ )rQ rG r� rd r r r r� � r� zFilteredCache.keysc C r� r/ r r� r r r r� � r� zFilteredCache.has_keyc C s, z | j | j| jjv W S ty Y dS w r� )r2 rp rQ rG r� r� r r r r� � s �zFilteredCache.__contains__c C s | j �|� | j�� dS rK )rQ rN r2 r8 rL r r r rN � s zFilteredCache.set_filterc C s | j �| j� dS rO )rQ rI r2 rd r r r rI � rg z&FilteredCache.filter_cache_post_changec C s t | j|�S )z)we try to look exactly like a real cache.)�getattrr2 r� r r r � __getattr__� r� zFilteredCache.__getattr__)NN)r r r r r+ r� r� r� r� r� r� rN rI rT r r r r rP � s rP c C � t d� d S )Nzcache pre changed��printrR r r r �cache_pre_changed� r� rX c C rU )Nzcache post changedrV rR r r r �cache_post_changed� r� rY c C s t d� t�� ttjj�� �} | �dt � | �dt � t d| v � | d }t |j � t t | �� | � � D ] }| | j |ks@J �q5| �� | �� }t t |�� |D ]}|j sXJ �qQdD ] }tj�|�sht�|� q[tj�dd� t�| j�}t�tjj�� �}| �||d� t d � t| �}|j �dt � |j �dt � |j �� |� t � � t t |�� |� � D ] }||| j ks�J �q�t t |�� t d � ttjj �� d �}|j �dt � |j �dt � |j �� |� t � � t t |�� |� � D ] }||| j ks�J �q�t t |�� dS ) zInternal test code.zCache self testr� r8 �aptitude)� /tmp/pytestz/tmp/pytest/partialr@ r[ Nz.Testing filtered cache (argument is old cache)z$Testing filtered cache (no argument))r^ ) rW r$ r r4 rv r^ r� r r rX rY rp r{ r� r� r� r& r' rU �mkdirrR rS r� rC r� r r� rP r2 rN r@ rw )r2 r� r� r� r" r� r� �filteredr r r �_test� sX � r^ �__main__)0� __future__r r% r& r rJ �typingr r r r r r r r r r r r$ � apt.packager r �apt.progress.textrv �apt.progress.baser r r �IOErrorr r r r � Exceptionr �objectr! r4 r/ r; r@ rD rF rP rX rY r^ r r r r r �<module> sD 4 P, $<9 �
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