Current File : //opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyc
�
�M!Vc @ s� d d l Z d d l Z d d l m Z d d l m Z d d l m Z e j d � Z d e f d � � YZ
d e
f d � � YZ d
e
f d � � YZ d e
f d
� � YZ
d e f d � � YZ d e f d � � YZ d � Z d S( i����Ni ( t util( t compats (?:(.+?)@)?(\w+)?((?:\+|-)\d+)t
RevisionErrorc B s e Z RS( ( t __name__t
__module__( ( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyR s t RangeNotAncestorErrorc B s e Z d � Z RS( c C sB | | _ | | _ t t | � j d | p- d | p6 d f � d S( Ns- Revision %s is not an ancestor of revision %st base( t lowert uppert superR t __init__( t selfR R ( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyR
s
( R R R
( ( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyR s t
MultipleHeadsc B s e Z d � Z RS( c C s? | | _ | | _ t t | � j d | d j | � f � d S( Ns6 Multiple heads are present for given argument '%s'; %ss , ( t headst argumentR R R
t join( R R
R ( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyR
s
( R R R
( ( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyR s t ResolutionErrorc B s e Z d � Z RS( c C s# t t | � j | � | | _ d S( N( R R R
R ( R t messageR ( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyR
$ s ( R R R
( ( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyR # s t RevisionMapc B sR e Z d Z d � Z e j d � � Z e j d � � Z e j d � � Z e j d � � Z e j d � � Z
d � Z e d � Z
d � Z e d
� Z d d � Z d � Z d
� Z d � Z d � Z d d � Z e d � Z e d � Z d � Z d � Z e e e d � Z d e e d � Z d e e d � Z e d � Z e e d � Z RS( s� Maintains a map of :class:`.Revision` objects.
:class:`.RevisionMap` is used by :class:`.ScriptDirectory` to maintain
and traverse the collection of :class:`.Script` objects, which are
themselves instances of :class:`.Revision`.
c C s
| | _ d S( s
Construct a new :class:`.RevisionMap`.
:param generator: a zero-arg callable that will generate an iterable
of :class:`.Revision` instances to be used. These are typically
:class:`.Script` subclasses within regular Alembic use.
N( t
_generator( R t generator( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyR
2 s c C s | j | j S( s� All "head" revisions as strings.
This is normally a tuple of length one,
unless unmerged branches are present.
:return: a tuple of string revision numbers.
( t
_revision_mapR
( R ( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyR
< s
c C s | j | j S( s� All "base" revisions as strings.
These are revisions that have a ``down_revision`` of None,
or empty tuple.
:return: a tuple of string revision numbers.
( R t bases( R ( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyR I s
c C s | j | j S( se All "real" head revisions as strings.
:return: a tuple of string revision numbers.
( R t _real_heads( R ( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyR V s c C s | j | j S( se All "real" base revisions as strings.
:return: a tuple of string revision numbers.
( R t _real_bases( R ( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyR ` s c
C sQ i } t j � } t j � } d | _ d | _ t � } t � } x� | j � D]� } | j | k r{ t j d | j � n | | | j <| j r� | j
| � n | j r� | j
| � n | j
| j � | j
| j � | j r� | j | j f 7_ n | j
rO | j | j f 7_ qO qO Wx | D] } | j | | � q'Wx | D] } | j | | � qHWx� | j � D]� } xz | j D]o } | | k r�t j d | | f � n | | } | j | � | | j k r�| j | � n | j | � qWqoWd | d <| d <t | � | _ t | � | _ x$ | D] } | j | | d t �q-W| S( s_ memoized attribute, initializes the revision map from the
initial collection.
s% Revision %s is present more than onces- Revision %s referenced from %s is not presentt map_branch_labels( ( N( ( t sqlautilt
OrderedSetR R t setR t revisionR t warnt
branch_labelst addt dependenciest is_baset
_is_real_baset _map_branch_labelst _add_depends_ont valuest _all_down_revisionst add_nextrevt _versioned_down_revisionst discardt Nonet tupleR
R t
_add_branchest False(
R t map_R
R t has_branch_labelst has_depends_onR t revt downrevt
down_revision( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyR j sT
c C s` | j r\ xP | j D]B } | | k rK t d | | j | | j f � � n | | | <q Wn d S( Ns; Branch name '%s' in revision %s already used by revision %s( R t _orig_branch_labelsR R ( R R R/ t branch_label( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyR$ � s c C s� | r | j | | � n | j r� | j j | j � x6 | j | g | d t �D] } | j j | j � qQ W| } xN | r� | j r� | j r� | j j | j � | j r� | | j } qw Pqw Wn d S( Nt include_dependencies( R$ R t updatet _get_descendant_nodesR. t _is_real_branch_pointt is_merge_pointR4 ( R R R/ R t nodet parent( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyR- � s
c s; | j r7 t � f d � t j | j � D� � | _ n d S( Nc 3 s | ] } � | j Vq d S( N( R ( t .0t dep( R/ ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pys <genexpr>� s ( R! R, R t to_tuplet _resolved_dependencies( R R R/ ( ( R/ sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyR% � s c s� | j } | r6 � j | k r6 t j d � j � n+ | ra � j | k ra t d � j � � n � | � j <| j � | � | j � | � � j r� | j � j f 7_ n � j r� | j
� j f 7_
n xH � j D]= } | | k rt j d | � f � n | | j � � q� W� j
rSt � f d � | j D� � � j f | _ n � j r�t � f d � | j D� � � j f | _ n d S( s� add a single revision to an existing map.
This method is for single-revision use cases, it's not
appropriate for fully populating an entire revision map.
s% Revision %s is present more than onces revision %s not in maps- Revision %s referenced from %s is not presentc 3 s9 | ]/ } | t � j � j � j g � k r | Vq d S( N( R R' t unionR ( R> t head( R ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pys <genexpr>� s c 3 s9 | ]/ } | t � j � j � j g � k r | Vq d S( N( R R) RB R ( R> RC ( R ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pys <genexpr>� s N( R R R R t ExceptionR- R% R" R R# R R' R( t
_is_real_headR, R t is_headR
( R R t _replaceR/ R3 ( ( R sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyt add_revision� s6
c C sn | j } | r$ | j | | � } n t | � d k rX t | | rL d | n d � � n | rf | d Sd Sd S( s� Return the current head revision.
If the script directory has multiple heads
due to branching, an error is raised;
:meth:`.ScriptDirectory.get_heads` should be
preferred.
:param branch_label: optional branch name which will limit the
heads considered to those which include that branch_label.
:return: a string revision number.
.. seealso::
:meth:`.ScriptDirectory.get_heads`
i s %s@headRC i N( R
t filter_for_lineaget lenR R+ ( R R6 t
current_heads( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyt get_current_head� s c C s | j | j | � S( N( RI R ( R t
identifier( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyt _get_base_revisions s c sz t | t t t t f � rD t g | D] } � j | � ^ q% d � S� j | � \ } � t � � f d � | D� � Sd S( s� Return the :class:`.Revision` instances with the given rev id
or identifiers.
May be given a single identifier, a sequence of identifiers, or the
special symbols "head" or "base". The result is a tuple of one
or more identifiers, or an empty tuple in the case of "base".
In the cases where 'head', 'heads' is requested and the
revision map is empty, returns an empty tuple.
Supports partial identifiers, where the given identifier
is matched against all identifiers that start with the given
characters; if there is exactly one match, that determines the
full revision.
c 3 s! | ] } � j | � � Vq d S( N( t _revision_for_ident( R> t rev_id( R6 R ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pys <genexpr>/ s N( ( t
isinstancet listR, R t frozensett sumt
get_revisionst _resolve_revision_number( R t id_t id_elemt resolved_id( ( R6 R sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyRU s )c C s\ | j | � \ } } t | � d k r9 t | | � � n | rL | d } n | j | | � S( s Return the :class:`.Revision` instance with the given rev id.
If a symbolic name such as "head" or "base" is given, resolves
the identifier into the current head or base revision. If the symbolic
name refers to multiples, :class:`.MultipleHeads` is raised.
Supports partial identifiers, where the given identifier
is matched against all identifiers that start with the given
characters; if there is exactly one match, that determines the
full revision.
i i ( RV RJ R RO ( R RW RY R6 ( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyt get_revision2 s
c C sk y | j | } WnO t k
rb y | j | � } Wn$ t k
rZ t d | | � � qg X| Sn X| Sd S( Ns No such branch: '%s'( R t KeyErrorRO R ( R R6 t
branch_revt
nonbranch_rev( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyt _resolve_branchH s
c C sT | r | j | � } n d } y | j | } Wn� t k
rg | j D]! } | rI | j | � rI | ^ qI } | r� | j | | � } n | s� t d | | � � qt | � d k r� t d | d j d � | d d !D� � f | � � q| j | d } n X| rP| d k rP| j | j
| j
� sPt d | j
| f | � � qPn | S( Ns No such revision or branch '%s'i s) Multiple revisions start with '%s': %s...s , c s s | ] } d | Vq d S( s '%s'N( ( R> t r( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pys <genexpr>m s i i s* Revision %s is not a member of branch '%s'( R^ R+ R R[ t
startswithRI R RJ R t _shares_lineageR ( R RY t check_branchR\ R t xt revs( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyRO V s8
! ! c C sv | j | � \ } } g } | r1 | j | � n | rG | j | � n g | D]$ } | j | | d | �rN | ^ qN S( NR7 ( RV t appendt extendRa ( R t targetst
check_againstR7 RW R6 t sharest tg( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyRI z s
c C s� | s
t St | t � s+ | j | � } n g t j | d d �D]* } t | t � se | j | � n | ^ qA } t t | j | g d | �� j | j
| g d | �� j | � � S( Nt defaultR7 ( ( t TrueRQ t RevisionRO R R@ t boolR R9 RB t _get_ancestor_nodest intersection( R t targett test_against_revsR7 t test_against_rev( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyRa � s C c C s� t | t j � r9 d | k r9 | j d d � \ } } n d } | j | d k r� | rq | j | j | � | f S| j | f Snv | d k r� | j | � } | r� | f | f Sd | f Sn; | d k s� | d k r� d | f St
j | d d �| f Sd S( Nt @i R
RC R Rk ( ( ( RQ R t string_typest splitR+ R RI R
R RL R R@ ( R RW R6 t current_head( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyRV � s"
c C s� t | t j � r. t j | � } | s2 d Sn d St | j d � � } | j d � } | j d � }
| rx | rx d n d } | r� |
r� d |
} n1 | r� | j d � r� | } q� d | } n d } | }
n2 |
r� d |
}
n | r� d | }
n d }
| } t | j
| |
d | d
| �� } | r�|
rO| j d |
| f � } n | j | � } | j d � rvd } q�| d k r�t | � d } q�t j
t | � d d d � } x7 | D] } | j | | j k r�Pq�q�Wd } n d } | rQ| | | | } | r�| r�t | � t | | � k r�t d
| t | � f � � q�n] | d | | | !} | r�| r�t | � t | � | k r�t d
| t | � f � � n t | � S( Ni i i i s %s@headRC s %s@baseR t inclusivet
implicit_bases %s@%si����s1 Relative revision %s didn't produce %d migrations( RQ R Ru t _relative_destinationt matchR+ t intt groupR` RR t _iterate_revisionsRZ RJ t rangeR t absR t iter( R t destinationt sourcet
is_upwardsRy Rx t assert_relative_lengthR{ t relativet symbolR6 t reldeltat from_t to_Rd t
symbol_revt indext range_( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyt _relative_iterate� sr
c C sl | j | | t | | | � } | r( | S| j | | t | | | � } | rP | S| j | | d | d | �S( su Iterate through script revisions, starting at the given
upper revision identifier and ending at the lower.
The traversal uses strictly the `down_revision`
marker inside each migration script, so
it is a requirement that upper >= lower,
else you'll get nothing back.
The iterator yields :class:`.Revision` objects.
Rx Ry ( R� Rl R. R~ ( R R R Ry Rx R� t relative_uppert relative_lower( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyt iterate_revisions s c C s7 | r d � } n d � } | j | | d | d | �S( Nc S s | j S( N( t _all_nextrev( R2 ( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyt <lambda>* s c S s | j S( N( t nextrev( R2 ( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyR� , s R/ t check( t _iterate_related_revisions( R Rg R/ R� R7 t fn( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyR9 & s
c C s7 | r d � } n d � } | j | | d | d | �S( Nc S s | j S( N( R' ( R2 ( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyR� 6 s c S s | j S( N( R) ( R2 ( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyR� 8 s R/ R� ( R� ( R Rg R/ R� R7 R� ( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyRo 2 s
c
# s � d k r | j � n t � } t j � } x� | D]� } | j | � | rY t � } n xs | r� | j � } | r� | j | � n | | k r� q\ n | j | � | j � f d � | | � D� � | Vq\ W| r4 | j | � j
| g � r4 t d | j � � q4 q4 Wd S( Nc 3 s | ] } � | Vq d S( N( ( R> RP ( R/ ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pys <genexpr>S s s= Requested revision %s overlaps with other requested revisions(
R+ R R t collectionst dequeRe t popR Rf Rp t
differenceR R (
R R� Rg R/ R� t seent todoRq t
per_targetR2 ( ( R/ sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyR� > s,
!c # s_ � j | � } t | t j � o- | j d � } t j � j | � � } | rb | rb t � � n t � j | d t
�� } | r� � j � j | � � } n | rP| rPt � j | � � }
t � j | � � } t � } | j
|
� j
| � }
xF |
D]> } x5 | j D] } � j | |
k r Pq q W| j | � q� W| j | � } nW | r�t � j � j � � } | j | � } n' | s�t � j � j � � } n | } t d � | D� � j d � � j | d t
�D� � � � s�t | | � � n t � f d � � f d � � D� D� � } t j � f d � | D� � } t
} x� rM| sft d � � n t } | s�| j t � f d � | D� d
d � �� | j | � n x� | rI| j � } � j | j � t
} | j g t | j � D]2 } � j | | k r�| � k r�� j | ^ q�� | rA| | k rAq�n | Vq�WqKW| s[t � d S(
s� iterate revisions from upper to lower.
The traversal is depth-first within branches, and breadth-first
across branches as a whole.
s @baseR� c s s | ] } | j Vq d S( N( R ( R> R2 ( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pys <genexpr>� s c s s | ] } | j Vq d S( N( R ( R> R2 ( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pys <genexpr>� s c 3 s< | ]2 } | j r t � j | j � � d k r | Vq d S( i N( R: RJ Rp R� ( R> R2 ( t total_space( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pys <genexpr>� s c 3 s | ] } � j | Vq d S( N( R ( R> R2 ( R ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pys <genexpr>� s c 3 s$ | ] } | j � k r | Vq d S( N( R ( R> R_ ( R� ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pys <genexpr>� s s5 Dependency resolution failed; iteration can't proceedc 3 s' | ] } | j j � � s | Vq d S( N( R� Rp ( R> R2 ( R� ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pys <genexpr>� s t keyc S s | j r
d Sd S( Ni i ( t is_branch_point( R2 ( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyR� � s N(! RU RQ R Ru t endswithR t dedupe_tuplet
StopIterationR Ro Rl RN R9 R� R' R R RB R Rp R R� R� R R. t
extendleftt sortedt difference_updatet popleftt removeR t reversedt AssertionError( R R R Rx Ry t requested_lowerst limit_to_lower_brancht upperst upper_ancestorst lowerst lower_ancestorst lower_descendantst base_lowerst candidate_lowersR2 R3 t branch_todoR� t total_space_modified( ( R R� sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyR~ Z s� !
N(! R R t __doc__R
R t memoized_propertyR
R R R R R$ Rl R- R% R. RH R+ RL RN RU RZ R^ RO RI Ra RV R� R� R9 Ro R� R~ ( ( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyR ) s6
; * % N Rm c B s� e Z d Z e � Z e � Z d
Z d
Z d
Z d
Z
d
d
d � Z d � Z d � Z
e d � � Z e d � � Z e d � � Z e d � � Z e d � � Z e d � � Z e d
� � Z e d � � Z e d � � Z RS( so Base class for revisioned objects.
The :class:`.Revision` class is the base of the more public-facing
:class:`.Script` object, which represents a migration script.
The mechanics of revision management and traversal are encapsulated
within :class:`.Revision`, while :class:`.Script` applies this logic
to Python files in a version directory.
c C s^ | | _ t | � | _ t | � | _ d | _ t j | d d �| _ t | j � | _ d S( NRk ( ( (
R t tuple_rev_as_scalarR4 R! RA R R@ R5 R R ( R R R4 R! R ( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyR
� s c C s{ t | j � t | j � g } | j r> | j d | j � n | j r^ | j d | j � n d | j j d j | � f S( Ns dependencies=%rs branch_labels=%rs %s(%s)s , ( t reprR R4 R! Re R t __class__R R ( R t args( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyt __repr__ s c C sO | j j | j g � | _ | j | j k rK | j j | j g � | _ n d S( N( R� RB R R) R� ( R R ( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyR( s c C s t j | j d d �| j S( NRk ( ( R R@ R4 RA ( R ( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyR' s c C s t j | j d d �S( NRk ( ( R R@ R4 ( R ( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyR) ! s c C s t | j � S( s Return True if this :class:`.Revision` is a 'head' revision.
This is determined based on whether any other :class:`.Script`
within the :class:`.ScriptDirectory` refers to this
:class:`.Script`. Multiple heads can be present.
( Rn R� ( R ( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyRF % s c C s t | j � S( N( Rn R� ( R ( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyRE 0 s c C s
| j d k S( s< Return True if this :class:`.Revision` is a 'base' revision.N( R4 R+ ( R ( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyR" 4 s c C s | j d k o | j d k S( sr Return True if this :class:`.Revision` is a "real" base revision,
e.g. that it has no dependencies either.N( R4 R+ R! ( R ( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyR# : s c C s t | j � d k S( s+ Return True if this :class:`.Script` is a branch point.
A branchpoint is defined as a :class:`.Script` which is referred
to by more than one succeeding :class:`.Script`, that is more
than one :class:`.Script` has a `down_revision` identifier pointing
here.
i ( RJ R� ( R ( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyR� D s
c C s t | j � d k S( sz Return True if this :class:`.Script` is a 'real' branch point,
taking into account dependencies as well.
i ( RJ R� ( R ( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyR: P s c C s t | j � d k S( s6 Return True if this :class:`.Script` is a merge point.i ( RJ R) ( R ( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyR; X s N( R R R� RS R� R� R+ R R4 R! R R
R� R( t propertyR' R) RF RE R" R# R� R: R; ( ( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyRm � s&
c C s, | s
d St | � d k r$ | d S| Sd S( Ni i ( R+ RJ ( R2 ( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyR� _ s
( t reR� t R t
sqlalchemyR R t compileRz RD R R R R t objectR Rm R� ( ( ( sH /opt/alt/python27/lib/python2.7/site-packages/alembic/script/revision.pyt <module> s
� � ��
Mini Shell