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c n | j }t | dk rt j d |d S )Nr z"Multiple version_locations presentr )_version_locationslenr r< )r? locs r@ versionszScriptDirectory.versionsl s4 % s88a<<#$HII Iq6MrB c | j rd | j D S t j t j | j d fS )Nc p g | ]3}t j t j | 4S )r9 r= r> r coerce_resource_to_filename).0locations r@
z6ScriptDirectory._version_locations..w sA @ J JKK rB rG )r( r9 r= r> joinr# r? s r@ rD z"ScriptDirectory._version_locationst s] ! J $ 6
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| }t | || }||V d S )Nc P g | ]#}t j | !|$S rJ )r9 r= exists)rL verss r@ rN z3ScriptDirectory._load_revisions.. s< 7>>$'' rB zJFile %s loaded twice! ignoring. Please ensure version_locations is unique.)r( rD rG setScript _list_py_dirr9 r= realpathr warnaddbasenamedirname_from_filename) r? pathsdupesrU file_path real_pathfilenamedir_namescripts r@ r7 z ScriptDirectory._load_revisions~ s0 ! $ 3 EE ]OE D # 0 0t < <
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script_locationNz0No 'script_location' key found in configuration.r& r( version_path_separator :;)Nspacer9 rk rl c g | ]}||S rJ rJ )rL xs r@ rN z/ScriptDirectory.from_config.. s- ) ) ) a)) ) )rB zV'%s' is not a valid value for version_path_separator; expected 'space', 'os', ':', ';'prepend_sys_pathr r1 truer% r* r, r" r- post_write_hooks) r% r& r* r, r( r- r/ r1 r2 )get_main_optionr r< intr9 pathsep_split_on_space_commasplitKeyError
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j | j d | d } ~ ww xY w)NzgRequested range %(start)s:%(end)s does not refer to ancestor/descendant revisions along the same branchr r zMultiple head revisions are present for given argument '%(head_arg)s'; please specify a specific target revision, '@%(head_arg)s' to narrow to a specific head, or 'heads' for all heads)head_argheadsz(Can't locate revision identified by '%s'r )r RangeNotAncestorErrorr r lowerupperr r<
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D-AA22D-?CD-!C66D- D((D-baser headc # K | || 5 | j ||dd D ]}t t | V ddd dS # 1 swxY w Y dS )a- Iterate through all revisions.
:param base: the base revision, or "base" to start from the
empty revision.
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all head revisions. May also be "head" to indicate a single
head revision.
r TF) inclusiveassert_relative_lengthN)r r8 iterate_revisionsr rW )r? r r revs r@ walk_revisionsz ScriptDirectory.walk_revisions s
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_RevIdType Tuple[Optional[Script], ...]c | 5 t t t t df | j | cddd S # 1 swxY w Y dS )zReturn the :class:`.Script` instance with the given rev identifier,
symbolic name, or sequence of identifiers.
.N)r r r r rW r8
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* HV$%t'8'I'I#'N'N s AA%%A),A)Optional[Script]c | 5 t t t | j | cddd S # 1 swxY w Y dS )zReturn the :class:`.Script` instance with the given rev id.
.. seealso::
:meth:`.ScriptDirectory.get_revisions`
N)r r r rW r8 get_revisionr s r@ r z ScriptDirectory.get_revision> s
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* O O($*;*H*H*M*MNN O O O O O O O O O O O O O O O O O Os 8AA !A %Optional[Union[str, Tuple[str, ...]]]c | 5 | j | \ }}ddd n # 1 swxY w Y |sdS |dk r|S |d S )z[Convert a symbolic revision, i.e. 'head' or 'base', into
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G^^Jq6Ms ?AAr !Union[str, Tuple[str, ...], None]r kwr c f t t t | j j ||fi | S )a Iterate through script revisions, starting at the given
upper revision identifier and ending at the lower.
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marker inside each migration script, so
it is a requirement that upper >= lower,
else you'll get nothing back.
The iterator yields :class:`.Script` objects.
.. seealso::
:meth:`.RevisionMap.iterate_revisions`
)r r rW r8 r )r? r r r s r@ r z!ScriptDirectory.iterate_revisions[ s; * V /D /u C C C C
rB c | d 5 | j cddd S # 1 swxY w Y dS )aG 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.
:return: a string revision number.
.. seealso::
:meth:`.ScriptDirectory.get_heads`
z}The script directory has multiple heads (due to branching).Please use get_heads(), or merge the branches using alembic merge.r N)r r8 get_current_headrP s r@ r z ScriptDirectory.get_current_headu s
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8 8 $5577 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8s =AA List[str]c 4 t | j j S )aU Return all "versioned head" revisions as strings.
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:return: a tuple of string revision numbers.
)rz r8 r rP s r@ get_headszScriptDirectory.get_heads s D%+,,,rB c | }t | dk rt j d |r|d S dS )a# Return the "base" revision as a string.
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preferred.
r z@The script directory has multiple bases. Please use get_bases().r N) get_basesrE r r< )r? basess r@ get_basezScriptDirectory.get_base sT u::>>#*
8O4rB c 4 t | j j S )zreturn all "base" revisions as strings.
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)rz r8 r rP s r@ r zScriptDirectory.get_bases s D%+,,,rB destination current_revList[RevisionStep]c d| 5 ||d } fdt t | D cd d d S # 1 swxY w Y d S )NzFDestination %(end)s is not a valid upgrade target from current head(s)r r T)
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s A A&&A*-A*c d| 5 ||d } fd|D cd d d S # 1 swxY w Y d S )NzHDestination %(end)s is not a valid downgrade target from current head(s)r T)select_for_downgradec Z g | ]'}t j j | (S rJ )r r downgrade_from_scriptr8 r s r@ rN z3ScriptDirectory._downgrade_revs.. sF '==%v rB )r r r s ` r@ _downgrade_revsz ScriptDirectory._downgrade_revs s
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|j dd j } | | |cd d d S # 1 swxY w Y d S ) NzCMultiple heads are present; please specify a single target revisionr r T)include_dependenciesc T g | ]$}t j |j d ddj %S )NFT)r r r r8 )rL r r? s r@ rN z/ScriptDirectory._stamp_revs.. sL !% & / $
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) D LL&&& %.DM4t7H D LL&&& w[ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ [ s H3II I c : t j | j d dS )zRun the script environment.
This basically runs the ``env.py`` script present
in the migration environment. It is called exclusively
by the command functions in :mod:`alembic.command`.
env.pyN)r load_python_filer# rP s r@ run_envzScriptDirectory.run_env= s
dh11111rB c t j t j | j d S )Nr )r9 r= r> rO r# rP s r@ env_py_locationz ScriptDirectory.env_py_locationH s( wrw||DHh ? ?@@@rB srcr c t j dt j | fi | j 5 t j ||| j fi | d d d d S # 1 swxY w Y d S Nz Generating )r statusr9 r= r> r2 template_to_filer, )r? r r r s r@ _generate_templatez"ScriptDirectory._generate_templateL s
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KT " " " # # # # # # # # # # # # # # # # # #s AA "A r= c t j | }t j | sIt j d| fi | j 5 t j | d d d d S # 1 swxY w Y d S d S )NzCreating directory )r9 r= r> rT r r r2 makedirs)r? r= s r@ _ensure_directoryz!ScriptDirectory._ensure_directoryX s wt$$w~~d## ",d,, 040C
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ww xY w|dS |r/|j) s(t j d|j d|d|j d j * | |S )a Generate a new revision file.
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:param revid: String revision id. Typically this
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:param message: the revision message, the one passed
by the -m argument to the ``revision`` command.
:param head: the head revision to generate against. Defaults
to the current "head" if no branches are present, else raises
an exception.
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actual head; otherwise, the selected head must be a head
(e.g. endpoint) revision.
:param refresh: deprecated.
Nr r z{Multiple heads are present; please specify the head revision on which the new revision should be based, or perform a merge.r r .r z"Duplicate head revisions specifiedr zAMultiple version locations present, please specify --version-pathz7Path %s is not represented in current version locationszeRevision %s is not a head revision; please specify --splice to create a new branch from this revisionc 8 g | ]\ }}||j v r|n|j S rJ )r r )rL r deps r@ rN z5ScriptDirectory.generate_revision.. sE ' ' ' !S c /// C ' ' 'rB c b g | ]+}t j | |f,S rJ )r r8 r )rL r r? s r@ rN z5ScriptDirectory.generate_revision.. sG % % % "$"3"@"@"E"EFFL% % %rB zscript.py.makoc 3 , K | ]}||j nd V d S r r )rL hs r@ z4ScriptDirectory.generate_revision.. s, KKAMajjtKKKKKKrB z
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down_revisionr r r commar zVersion z specified branch_labels z , however the migration file zb does not have them; have you upgraded your script.py.mako to include the 'branch_labels' section?)+rW
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