U
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H=®dö ã @ s` d Z ddlmZ ddlmZ ddlZddlZddlZddlmZ ddl Z ddl
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Z
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ZG d d deZG dd deZG dd deZdd Zdd Zdd Zdd ZdZd d Zd d Zd d! Zd/d"d#Z d$d% Z G d&d' d'eZ G d(d) d)eZ d*d+ Z ddd#d%d+hZ!d,d- Z"e#d.kr\e" dS )0ag This is invoked in a subprocess to call the build backend hooks.
|
|
It expects:
|
- Command line args: hook_name, control_dir
|
- Environment variables:
|
PEP517_BUILD_BACKEND=entry.point:spec
|
PEP517_BACKEND_PATH=paths (separated with os.pathsep)
|
- control_dir/input.json:
|
- {"kwargs": {...}}
|
|
Results:
|
- control_dir/output.json
|
- {"return_val": ...}
|
é )Úglob)Ú import_moduleN)Újoiné c K s. t |ddd}tj| |f| W 5 Q R X d S )NÚwúutf-8©Úencoding©ÚopenÚjsonÚdump©ÚobjÚpathÚkwargsÚf© r úUD:\z\workplace\VsCode\pyvenv\venv\Lib\site-packages\pip/_vendor/pep517/_in_process.pyÚ
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C s, t | d}t |¡W 5 Q R £ S Q R X d S )NÚrbr r r r r r / s c @ s e Zd ZdZdd ZdS )ÚBackendUnavailablez&Raised if we cannot import the backendc C s
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|| _ d S r )Úmessage)r" r* r r r r# < s zBackendInvalid.__init__Nr$ r r r r r) : s r) c @ s e Zd ZdZdS )Ú HookMissingzARaised if a hook is missing and we are not executing the fallbackN©r% r& r' r( r r r r r+ @ s r+ c C s< t j t j | ¡¡} t j t j |¡¡}t j | |g¡|kS )z5Test if a file is located within the given directory.)Úosr ÚnormcaseÚabspathÚ commonprefix)ÚfilenameÚ directoryr r r Ú contained_inD s r3 c s¶ t j d¡} | r*| t j¡}|tjdd
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z Find and load the build backendÚPEP517_BACKEND_PATHNr ÚPEP517_BUILD_BACKENDú:c 3 s | ]}t j|V qd S r )r3 Ú__file__)Ú.0r ©r r r Ú <genexpr>[ s ÿz!_build_backend.<locals>.<genexpr>z(Backend was not loaded from backend-pathÚ.)r- ÚenvironÚgetÚsplitÚpathsepÚsysr Ú partitionr Ú ImportErrorr r Ú
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r( g Y S X || S dS ©zfInvoke the optional get_requires_for_build_wheel hook
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Returns [] if the hook is not defined.
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N)rI Ú get_requires_for_build_wheelÚAttributeError©Úconfig_settingsÚbackendÚhookr r r rK g s
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rK c C sJ t }z
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r: |s*t t|| | Y S X || |S dS )zÈInvoke optional prepare_metadata_for_build_wheel
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|
unless _allow_fallback is False in which case HookMissing is raised.
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N)rI Ú prepare_metadata_for_build_wheelrL r+ Ú _get_wheel_metadata_from_wheel)Úmetadata_directoryrN Ú_allow_fallbackrO rP r r r rQ u s
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rQ ZPEP517_ALREADY_BUILT_WHEELc C s@ g }| ¡ D ] }t d|¡}|r | |¡ q |r4|S tddS )z6Identify the .dist-info folder inside a wheel ZipFile.z[^/\\]+-[^/\\]+\.dist-info/z#No .dist-info folder found in wheelN)ÚnamelistÚreÚmatchÚappendÚ Exception)Zwhl_zipÚresr Úmr r r Ú_dist_info_files s r\ c C s ddl m} | ||¡}ttj |t¡d W 5 Q R X tj ||¡}|| }t|}|j ||d W 5 Q R X |d
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d¡d S )zBuild a wheel and extract the metadata from it.
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|
Fallback for when the build backend does not
|
define the 'get_wheel_metadata' hook.
|
r )ÚZipFiler )r Úmembersú/) Úzipfiler] Ú build_wheelr r- r r ÚWHEEL_BUILT_MARKERr\ Ú
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extractallr> )rO rS rN r] Z whl_basenameZwhl_fileZzipfZ dist_infor r r rR s
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rR c C sl | sdS t j | ¡}t j t|t¡s*dS tt j |d¡}|sLtd dS t |dkrdtd dS |d S )zHCheck for a wheel already built during the get_wheel_metadata hook.
|
Nz*.whlz+Found wheel built marker, but no .whl filesé zHFound multiple .whl files; unspecified behaviour. Will call build_wheel.r )
|
r- r ÚdirnameÚisfileÚpjoinrb r r ÚprintÚlen)rS Zmetadata_parentZ whl_filesr r r Ú_find_already_built_wheelª s rj c C s4 t |}|r$t || ¡ tj |¡S t | ||¡S )z»Invoke the mandatory build_wheel hook.
|
|
If a wheel was already built in the
|
prepare_metadata_for_build_wheel fallback, this
|
will copy it rather than rebuilding the wheel.
|
)rj ÚshutilÚcopy2r- r ÚbasenamerI ra )Úwheel_directoryrN rS Z prebuilt_whlr r r ra À s
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r( g Y S X || S dS rJ )rI Ú get_requires_for_build_sdistrL rM r r r ro Ð s
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ro c @ s e Zd ZdZdS )Ú_DummyExceptionz(Nothing should ever raise this exceptionNr, r r r r rp Þ s rp c @ s e Zd ZdZdd ZdS )ÚGotUnsupportedOperationz9For internal use when backend raises UnsupportedOperationc C s
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|| _ d S r r r! r r r r# ä s z GotUnsupportedOperation.__init__Nr$ r r r r rq â s rq c C sB t }z| | |¡W S t|dtk
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r< tt ¡ Y nX dS )z&Invoke the mandatory build_sdist hook.ÚUnsupportedOperationN)rI Ú build_sdistrE rp rq r rC )Úsdist_directoryrN rO r r r rs è s
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