k"gH_FdZddlZddlZddlZddlmZmZddlmZddlm Z ddl Z ddl m Z ddl mZddlmZmZdd lmZmZd ZGd d eZGd deZGddeZdZdZGddeZGdde ZGddZGddeZGddeZ y)z Base classes for writing management commands (named commands which can be executed through ``django-admin`` or ``manage.py``). N)ArgumentParser HelpFormatter)partial) TextIOBase)checks)ImproperlyConfigured) color_styleno_style)DEFAULT_DB_ALIAS connections__all__c(eZdZdZddfd ZxZS) CommandErrora Exception class indicating a problem while executing a management command. 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N)missing_args_messagecalled_from_command_linec @||_||_t| di|y)Nr$)r'r(rr)rr'r(rrs rrzCommandParser.__init__7s%%9!(@% "6"rc|jr/|s-td|Ds|j|jt|||S)Nc3@K|]}|jd yw)-N) startswith).0args r z+CommandParser.parse_args..As@CCNN3//@s)r'anyerrorr parse_args)rr namespacers rr3zCommandParser.parse_args>s@  $ $ C@4@@ JJt00 1w!$ 22rcX|jrt| |ytd|z)Nz Error: %s)r(rr2r)rmessagers rr2zCommandParser.errorFs(  ( ( GM' "{W45 5rc |jdt|}t|trt ||j |d<t |di|S)N parser_class)r(r$)gettype issubclassr&rr(radd_subparsers)rrr8rs rr<zCommandParser.add_subparsersLsQzz.$t*= lM 2%,)-)F)F&F> "w%///r)NN) rrrrrr3r2r<r r!s@rr&r&0s('+T#36 00rr&c|jr|jtjd<|jr+tj j d|jyy)z Include any default options that all commands should accept here so that ManagementUtility can handle them before searching for user commands. DJANGO_SETTINGS_MODULErN)settingsosenviron pythonpathsyspathinsert)optionss rhandle_default_optionsrGVsH /6/?/? +, 7--.rcfd}|S)zEDecorator that forces a command to run with translations deactivated.cddlm}|j}|j |i|}||j ||S#||j |wwxYw)Nr) translation) django.utilsrJ get_languagedeactivate_allactivate)rrrJ saved_localeres handle_funcs rwrapperz no_translations..wrapperesj,"//1 ""$ 3t.v.C'$$\2 '$$\2(s AAr$)rQrRs` rno_translationsrSbs  Nrc:eZdZdZhdZdZfdZfdZxZS)DjangoHelpFormatterz Customized formatter so that command-specific arguments appear in the --help output before arguments common to all commands. > --version --no-color --settings --traceback --verbosity --pythonpath --force-color --skip-checksc$t|fdS)Nc^t|jjztk7Sr)setoption_strings show_last)ars rz8DjangoHelpFormatter._reordered_actions..s"3q'7'7#84>>#ISU#Rr)key)sorted)ractionss` r_reordered_actionsz&DjangoHelpFormatter._reordered_actionss R  rcLt|||j|g|i|yr)r add_usagerh)rusagergrrrs rrjzDjangoHelpFormatter.add_usages' %!8!8!ASDSFSrcBt||j|yr)r add_argumentsrh)rrgrs rrmz!DjangoHelpFormatter.add_argumentss d55g>?r) rrrrrbrhrjrmr r!s@rrUrUts& I T@@rrUcfeZdZdZedZej dZd dZdZdZ dZ d d Z y) OutputWrapperz& Wrapper around stdout/stderr c|jSr) _style_funcrs r style_funczOutputWrapper.style_funcsrcH|r|jr||_yd|_y)Nc|Srr$xs rrdz*OutputWrapper.style_func..sr)isattyrq)rrss rrszOutputWrapper.style_funcs $++-)D *D rc.||_d|_||_yr)_outrsending)routr{s rrzOutputWrapper.__init__s  rc.t|j|Sr)getattrrz)rnames r __getattr__zOutputWrapper.__getattr__styy$''rcft|jdr|jjyy)Nflush)hasattrrzrrrs rrzOutputWrapper.flushs# 499g & IIOO  'rcft|jdxr|jjS)Nrx)rrzrxrrs rrxzOutputWrapper.isattys%tyy(+B 0@0@0BBrNc| |jn|}|r|j|s||z }|xs |j}|jj ||yr)r{endswithrsrzwrite)rmsgrsr{s rrzOutputWrapper.writesJ &F #,,v. 6MC24??   3(r) )NN) rrrrpropertyrssetterrrrrxrr$rrrorosO  ++  (C)rroceZdZdZdZdZdZdZdZdZ dZ e Z ddZ d Zd Zd Zd Zd ZdZdZddddej,dfdZdZdZy) BaseCommanda The base class from which all management commands ultimately derive. Use this class if you want access to all of the mechanisms which parse the command-line arguments and work out what code to call in response; if you don't need to change any of that behavior, consider using one of the subclasses defined in this file. If you are interested in overriding/customizing various aspects of the command-parsing and -execution behavior, the normal flow works as follows: 1. ``django-admin`` or ``manage.py`` loads the command class and calls its ``run_from_argv()`` method. 2. The ``run_from_argv()`` method calls ``create_parser()`` to get an ``ArgumentParser`` for the arguments, parses them, performs any environment changes requested by options like ``pythonpath``, and then calls the ``execute()`` method, passing the parsed arguments. 3. The ``execute()`` method attempts to carry out the command by calling the ``handle()`` method with the parsed arguments; any output produced by ``handle()`` will be printed to standard output and, if the command is intended to produce a block of SQL statements, will be wrapped in ``BEGIN`` and ``COMMIT``. 4. If ``handle()`` or ``execute()`` raised any exception (e.g. ``CommandError``), ``run_from_argv()`` will instead print an error message to ``stderr``. Thus, the ``handle()`` method is typically the starting point for subclasses; many built-in commands and command types either place all of their logic in ``handle()``, or perform some additional parsing work in ``handle()`` and then delegate from it to more specialized methods as needed. Several attributes affect behavior at various steps along the way: ``help`` A short description of the command, which will be printed in help messages. ``output_transaction`` A boolean indicating whether the command outputs SQL statements; if ``True``, the output will automatically be wrapped with ``BEGIN;`` and ``COMMIT;``. Default value is ``False``. ``requires_migrations_checks`` A boolean; if ``True``, the command prints a warning if the set of migrations on disk don't match the migrations in the database. ``requires_system_checks`` A list or tuple of tags, e.g. [Tags.staticfiles, Tags.models]. System checks registered in the chosen tags will be checked for errors prior to executing the command. The value '__all__' can be used to specify that all system checks should be performed. Default value is '__all__'. To validate an individual application's models rather than all applications' models, call ``self.check(app_configs)`` from ``handle()``, where ``app_configs`` is the list of application's configuration provided by the app registry. ``stealth_options`` A tuple of any options the command uses which aren't defined by the argument parser. rFr )stderrstdoutr$Nct|xstj|_t|xstj|_|r |r t d|rt |_n5t||_|j j|j_ t|jttfs|jtk7r tdyy)Nz4'no_color' and 'force_color' can't be used together.z/requires_system_checks must be a list or tuple.)rorCrrrr styler ERRORrs isinstancerequires_system_checkslisttuple ALL_CHECKS TypeError)rrrno_color force_colors rrzBaseCommand.__init__s#F$8cjj9 #F$8cjj9  UV V !DJ$[1DJ%)ZZ%5%5DKK "466u F++z9MN N:Grc*tjS)z Return the Django version, which should be correct for all built-in Django commands. 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Nr$rrs rrmzBaseCommand.add_argumentsss rc||D]%}||jvstj|d<n|j|i|y)z Call the parser's add_argument() method, suppressing the help text according to BaseCommand.suppressed_base_arguments. rN)suppressed_base_argumentsargparseSUPPRESSr)rrrrr/s rrzBaseCommand.add_base_argumentysJ  Cd444!)!2!2v  T,V,rcH|j||}|jy)za Print the help message for this command, derived from ``self.usage()``. N)r print_help)rrrrs rrzBaseCommand.print_helps" ##Iz:rcd|_|j|d|d}|j|dd}t|}|j dd}t | |j |i| t'j(y#t$r}|jrt|tr'|jjt|dn4|jj|jjd |t!j"|j$Yd}~d}~wwxYw#t*$rYywxYw# t'j(w#t*$rYwwxYwxYw) aZ Set up any environment changes requested (e.g., Python path and Django settings), then run this command. If the command raises a ``CommandError``, intercept it and print it sensibly to stderr. If the ``--traceback`` option is present or the raised ``Exception`` is not ``CommandError``, raise it. TrrrNrr$c|Srr$rvs rrdz+BaseCommand.run_from_argv..sArz: )rrr3varspoprGexecuter tracebackrr#rrstrrrrCexitrr close_allr)rargvrrF cmd_optionsres r run_from_argvzBaseCommand.run_from_argvs7*.&##DGT!W5##DH-7m vr*w'  DLL$ .+ . %%' #  !-. !!#a&+6 !!akk.B.BA"FG HHQ\\ " " #(   %%''  saB0D2 D/BD*%E*D//E2 D>=D>E'EE' E$!E'#E$$E'c|dr|dr td|drtd|_n%|dr t|_d|j_|j drt|d|_|j drt|d|_|jrE|d s@|jtk(r|jn|j|j |jr|j|j|i|}|r|jrt |j d t"}|jj%|j&j)d |d |jj%|j&j+}|jj-||S) z Try to execute this command, performing system checks if needed (as controlled by the ``requires_system_checks`` attribute, except if force-skipped). rrz@The --no-color and --force-color options can't be used together.T)rNrr skip_checks)tagsdatabaser)rr rr rrsr9rorrrcheckrequires_migrations_checkscheck_migrationshandleoutput_transactionr r SQL_KEYWORDopsstart_transaction_sqlend_transaction_sqlr)rrrFoutput connections rrzBaseCommand.executesx = !gj&9R  = !$6DJ Z !DJ%)DKK " ;;x '(9:DK ;;x '(9:DK  & &w}/E**j8   ; ; <  * *  ! ! #d.g. &&(ZAQ)RS JJ**:>>+O+O+QRJJ**:>>+M+M+OP KK  f % rctj||||}d\}} } d} |r|D cgc]3} | jtjks!| j r2| 5} } |D cgc]H} tj| jcxkrtj krnn| j s| J}} |D cgc]H} tj | jcxkrtj krnn| j s| J}} |D cgc]H} tj | jcxkrtjkrnn| j s| J}} |D cgc]1} tj| jkr| j s| 3}} |df|df|df|df| dfg}|D]G\}}|s | t|z } fd |D}d jt|}| d |d |d z } I| rd }|r0| r| d z } | d | dk(rdn | dk(rdnd| zdt|| z dz } tfd|Dr/jj d|z| z| z}t||| z| z}|r<| rjj|dyj j|yycc} wcc} wcc} wcc} wcc} w)a Use the system check framework to validate entire Django project. 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