Cabal-3.16.0.0: A framework for packaging Haskell software
CopyrightLennart Kolmodin 2008 Francesco Ariis 2022
LicenseBSD3
Maintainercabal-devel@haskell.org
Portabilityportable
Safe HaskellNone
LanguageHaskell2010

Distribution.PackageDescription.Check

Description

This has code for checking for various problems in packages. There is one set of checks that just looks at a PackageDescription in isolation and another set of checks that also looks at files in the package. Some of the checks are basic sanity checks, others are portability standards that we'd like to encourage. There is a PackageCheck type that distinguishes the different kinds of checks so we can see which ones are appropriate to report in different situations. This code gets used when configuring a package when we consider only basic problems. The higher standard is used when preparing a source tarball and by Hackage when uploading new packages. The reason for this is that we want to hold packages that are expected to be distributed to a higher standard than packages that are only ever expected to be used on the author's own environment.

Synopsis

Package Checking

data CheckExplanation Source #

Explanations of PackageCheck's errors/warnings.

Constructors

COptONumber String WarnLang

Instances

Instances details

data CheckExplanationID Source #

Identifier for the specific CheckExplanation . This ensures `--ignore` can output a warning on unrecognised values. ☞ N.B.: should be kept in sync with CheckExplanation .

Instances

Instances details

type CheckExplanationIDString = String Source #

data PackageCheck Source #

Results of some kind of failed package check.

There are a range of severities, from merely dubious to totally insane. All of them come with a human readable explanation. In future we may augment them with more machine readable explanations, for example to help an IDE suggest automatic corrections.

Constructors

PackageBuildImpossible

This package description is no good. There's no way it's going to build sensibly. This should give an error at configure time.

PackageBuildWarning

A problem that is likely to affect building the package, or an issue that we'd like every package author to be aware of, even if the package is never distributed.

PackageDistSuspicious

An issue that might not be a problem for the package author but might be annoying or detrimental when the package is distributed to users. We should encourage distributed packages to be free from these issues, but occasionally there are justifiable reasons so we cannot ban them entirely.

PackageDistSuspiciousWarn

Like PackageDistSuspicious but will only display warnings rather than causing abnormal exit when you run 'cabal check'.

PackageDistInexcusable

An issue that is OK in the author's environment but is almost certain to be a portability problem for other environments. We can quite legitimately refuse to publicly distribute packages with these problems.

Instances

Instances details
Show PackageCheck Source #

Broken Show instance (not bijective with Read), alas external packages depend on it.

checkPackage :: GenericPackageDescription -> [PackageCheck] Source #

Check for common mistakes and problems in package descriptions.

This is the standard collection of checks covering all aspects except for checks that require looking at files within the package. For those see checkPackageFiles .

checkConfiguredPackage :: PackageDescription -> [PackageCheck] Source #

This function is an oddity due to the historical GenericPackageDescription/PackageDescription split. It is only maintained not to break interface, use checkPackage if possible.

wrapParseWarning :: FilePath -> PWarning -> PackageCheck Source #

Wraps ParseWarning into PackageCheck .

ppPackageCheck :: PackageCheck -> String Source #

Pretty printing PackageCheck .

ppCheckExplanationId :: CheckExplanationID -> CheckExplanationIDString Source #

A one-word identifier for each CheckExplanation.

isHackageDistError :: PackageCheck -> Bool Source #

Would Hackage refuse a package because of this error?

filterPackageChecksById Source #

Arguments

:: [PackageCheck]

Original checks.

-> [CheckExplanationID]

IDs to omit.

Filter Package Check by CheckExplanationID.

filterPackageChecksByIdString Source #

Arguments

:: [PackageCheck]

Original checks.

-> [CheckExplanationIDString]

IDs to omit, in String format.

Filter Package Check by Check explanation string.

Checking package contents

checkPackageFiles :: Verbosity -> PackageDescription -> FilePath -> IO [PackageCheck] Source #

Same as checkPackageFilesGPD , but working with PackageDescription .

This function is included for legacy reasons, use checkPackageFilesGPD if you are working with GenericPackageDescription .

checkPackageFilesGPD :: Verbosity -> GenericPackageDescription -> FilePath -> IO [PackageCheck] Source #

Sanity checks that require IO. checkPackageFiles looks at the files in the package and expects to find the package unpacked at the given filepath.

checkPackageContent :: Monad m => CheckPackageContentOps m -> GenericPackageDescription -> m [PackageCheck] Source #

Sanity check things that requires looking at files in the package. This is a generalised version of checkPackageFiles that can work in any monad for which you can provide CheckPackageContentOps operations.

The point of this extra generality is to allow doing checks in some virtual file system, for example a tarball in memory.

data CheckPackageContentOps (m :: Type -> Type) Source #

A record of operations needed to check the contents of packages. Abstracted over m to provide flexibility (could be IO, a .tar.gz file, etc).

Constructors

AltStyle によって変換されたページ (->オリジナル) /