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|P�_VB � @ sr d Z ddlmZmZ ddlZddlZddlZddlZzDddl m
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�Z"dZ#g d�Z$dZ%dZ&dZ'dZ(G dd� de�Z)G dd� de*�Z+G dd� de+�Z,G dd� de+�Z-G d d � d e�Z.e/d k�rne.ej0d d �Z1e1j2�3� Z3e4e3�5d�� dS )!zX Representation of Debian binary package (.deb) files
Debfile Classes
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S )%�DebParta� 'Part' of a .deb binary package.
A .deb package is considered as made of 2 parts: a 'data' part
(corresponding to the possibly compressed 'data.tar' archive embedded
in a .deb) and a 'control' part (the 'control.tar.gz' archive). Each of
them is represented by an instance of this class. Each archive should
be a compressed tar archive although an uncompressed data.tar is permitted;
supported compression formats are: .tar.gz, .tar.bz2, .tar.xz .
When referring to file members of the underlying .tar.gz archive, file
names can be specified in one of 3 formats "file", "./file", "/file". In
all cases the file is considered relative to the root of the archive. For
the control part the preferred mechanism is the first one (as in
deb.control.get_content('control') ); for the data part the preferred
mechanism is the third one (as in deb.data.get_file('/etc/vim/vimrc') ).
c C s || _ d | _d S r )�_DebPart__member�
_DebPart__tgz)�self�memberr r r �__init__] s zDebPart.__init__c
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d}~0 0 n td| ��| j S )z�Return a TarFile object corresponding to this part of a .deb
package.
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compressed tar archives, not only gzipped ones.
N� )� r, r r Zunxzz--stdoutFc s � � � j� j�S r )�signal�SIGPIPE�SIG_DFLr �r- r r r | s z DebPart.tgz.<locals>.<lambda>)�stdin�stdoutZuniversal_newlinesZ
preexec_fnz%sz!command has failed with code '%s'zr:*)�fileobj�modez#tarfile has returned an error: '%s'z"part '%s' has unexpected extension)r' r& �name�os�path�splitext� PART_EXTS� DATA_PART� CTRL_PART�sys� version_info�
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� $ z DebPart.tgzc C s2 | � d�r| dd� } n| � d�r.| dd� } | S )zw try (not so hard) to obtain a member file name in a form relative
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zDebPart.__normalize_memberc C s* t �|�}| �� �� }d| |v p(||v S )z.Check if this part contains a given file name.rO )r% �_DebPart__normalize_memberrN �getnames)r( rS �namesr r r �has_file� s
�zDebPart.has_fileNc C s d S r r �r( rS �encoding�errorsr r r �get_file� s zDebPart.get_filec C s d S r r rX r r r r[ � s c C s� t �|�}z| �� �d| �}W n ty@ | �� �|�}Y n0 |du rRtd��|dur�tjd dkr�ddl}t |d�s�dd� |_
|j |||d �S ddl }|du r�d
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|||d �S |S ) z�Return a file object corresponding to a given file name.
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otherwise, it will return binary data.
rO Nz File not found inside packager r, �flushc S s d S r r r r r r r � r z"DebPart.get_file.<locals>.<lambda>�rY rZ �strict)rZ )r% rT rN Z extractfile�KeyErrorr r< r= r? �hasattrr\ �
TextIOWrapper�codecs� EncodedFile)r( rS rY rZ Zfobjr? rb r r r r[ � s$
c C s d S r r rX r r r � get_content� s zDebPart.get_contentc C s d S r r rX r r r rd � s c C s, | j |||d�}d}|r(|�� }|�� |S )z�Return the string content of a given file, or None (e.g. for
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r] N)r[ rD �close)r( rS rY rZ r Zcontentr r r rd � s
c C s t | �� �� �S r )�iterrN rU �r( r r r �__iter__� s zDebPart.__iter__c C s
| � |�S r �rW �r( rS r r r � __contains__ s zDebPart.__contains__r r, c C s
| � |�S r ri rj r r r �has_key s zDebPart.has_keyc C s
| � |�S r )rd rj r r r � __getitem__ s zDebPart.__getitem__c C s | j �� d S r )r& re rg r r r re s z
DebPart.close)NN)N)NN)NN)N)NN)r" r# r$ �__doc__r* rN � staticmethodrT rW r r[ rd rh rk r< r= rl rm re r r r r r% K s6 1
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r% c @ s e Zd ZdS )�DebDataNr! r r r r rp s rp c @ sB e Zd Zdd� Zdd� Zed
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DebControlc C s6 i }t D ](}| �|�r| �|�}|dur|||< q|S )zo Return a dictionary of maintainer scripts (postinst, prerm, ...)
mapping script names to script text. N)�
MAINT_SCRIPTSrW rd )r( �scriptsrS rL r r r rs s
zDebControl.scriptsc C s t | �t��S )z� Return the debian/control as a Deb822 (a Debian-specific dict-like
class) object.
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.get_content('control') )r rd � CONTROL_FILErg r r r �
debcontrol* s zDebControl.debcontrolNc C s d S r r �r( rY rZ r r r r 4 s zDebControl.md5sumsc C s d S r r rv r r r r 9 s c C s� | � t�stdt ��| jt||d�}i }d}|du r:d}|�� D ]H}|�|��dd�\}}tjd dkr�t |t
�r�|� � ||< qB|||< qB|� � |S ) a� Return a dictionary mapping filenames (of the data part) to
md5sums. Fails if the control part does not contain a 'md5sum' file.
Keys of the returned dictionary are the left-hand side values of lines
in the md5sums member of control.tar.gz, usually file names relative to
the file system root (without heading '/' or './').
The returned keys are Unicode objects if an encoding is specified,
otherwise binary. The returned values are always Unicode.z('%s' file not found, can't list MD5 sumsr] z
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r+ r r, )
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isinstance�bytes�decodere ) r( rY rZ Zmd5_fileZsums�newline�lineZmd5rS r r r r > s
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dd� Zdd� ZdS ) �DebFilea� Representation of a .deb file (a Debian binary package)
DebFile objects have the following (read-only) properties:
- version debian .deb file format version (not related with the
contained package version), 2.0 at the time of writing
for all .deb packages in the Debian archive
- data DebPart object corresponding to the data.tar.gz (or
other compressed or uncompressed tar) archive contained
in the .deb file
- control DebPart object corresponding to the control.tar.gz (or
other compressed tar) archive contained in the .deb
file
N�rc s� t �| |||� t| �� �� � fdd�}t� vr<tdt ��i | _t| �|t ���| jt < t
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<listcomp>w r zBDebFile.__init__.<locals>.compressed_part_name.<locals>.<listcomp>z9missing required part in given .deb (expected one of: %s)r+ z>too many parts in given .deb (was looking for only one of: %s)r ) r9 r: r; �append� intersection�setr �len�list)r� Z
candidates�parts�Z actual_namesr� r �compressed_part_nameu s"
�� ��z.DebFile.__init__.<locals>.compressed_part_namez4missing required part in given .deb (expected: '%s'))r r* r� rU � INFO_PARTr �_DebFile__partsrq � getmemberr; rp r: �_DebFile__pkgnamerD �strip�_DebFile__versionre )r( �filenamer4 r3 r� r r r� r r* p s( ��� �
zDebFile.__init__c C s | � � d | _d S )N�package)ru r� rg r r r Z__updatePkgName� s zDebFile.__updatePkgNamec C s | j S r )r� rg r r r �version� s zDebFile.versionc C s
| j t S r )r� r: rg r r r rL � s z DebFile.datac C s
| j t S r )r� r; rg r r r r � s zDebFile.controlc C s
| j �� S )z See .control.debcontrol() )r ru rg r r r ru � s zDebFile.debcontrolc C s
| j �� S )z See .control.scripts() )r rs rg r r r rs � s zDebFile.scriptsc C s d S r r rv r r r r � s zDebFile.md5sumsc C s d S r r rv r r r r � s c C s | j j||d�S )z See .control.md5sums() r] )r r rv r r r r � s c C sl | j du r| �� t| j t| j fD ]@}| j�|�r&tj| j�|�d�}|� � }|�
� t |� S q&dS )z� Return a Changelog object for the changelog.Debian.gz of the
present .deb package. Return None if no changelog can be found. N)r3 ) r� �_DebFile__updatePkgName�CHANGELOG_DEBIAN�CHANGELOG_NATIVErL rW �gzipZGzipFiler[ rD re r )r( rS r Z
raw_changelogr r r � changelog� s
� zDebFile.changelogc C s | j �� | j�� d S r )r re rL rg r r r re � s
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