Cabal-3.9.0.0: A framework for packaging Haskell software
CopyrightLennart Kolmodin 2008
LicenseBSD3
Maintainercabal-devel@haskell.org
Portabilityportable
Safe HaskellSafe-Inferred
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

ParseWarning FilePath PWarning 
NoNameField 
NoVersionField 
NoTarget 
UnnamedInternal 
DuplicateSections [UnqualComponentName] 
IllegalLibraryName PackageDescription 
NoModulesExposed Library 
SignaturesCabal2 
AutogenNotExposed 
AutogenIncludesNotIncluded 
NoMainIs Executable 
NoHsLhsMain 
MainCCabal1_18 
AutogenNoOther CEType UnqualComponentName 
AutogenIncludesNotIncludedExe 
TestsuiteTypeNotKnown TestType 
TestsuiteNotSupported TestType 
BenchmarkTypeNotKnown BenchmarkType 
BenchmarkNotSupported BenchmarkType 
NoHsLhsMainBench 
InvalidNameWin PackageDescription 
ZPrefix 
NoBuildType 
NoCustomSetup 
UnknownCompilers [String] 
UnknownLanguages [String] 
UnknownExtensions [String] 
LanguagesAsExtension [String] 
DeprecatedExtensions [(Extension, Maybe Extension)] 
MissingField CEField 
SynopsisTooLong 
ShortDesc 
InvalidTestWith [Dependency] 
ImpossibleInternalDep [Dependency] 
ImpossibleInternalExe [ExeDependency] 
MissingInternalExe [ExeDependency] 
NONELicense 
NoLicense 
AllRightsReservedLicense 
LicenseMessParse PackageDescription 
UnrecognisedLicense String 
UncommonBSD4 
UnknownLicenseVersion License [Version] 
NoLicenseFile 
UnrecognisedSourceRepo String 
MissingType 
MissingLocation 
MissingModule 
MissingTag 
SubdirRelPath 
SubdirGoodRelPath String 
OptFasm String 
OptViaC String 
OptHpc String 
OptProf String 
OptO String 
OptHide String 
OptMake String 
OptMain String 
OptONot String 
OptOOne String 
OptOTwo String 
OptSplitSections String 
OptSplitObjs String 
OptWls String 
OptExts String 
OptRts String 
OptWithRts String 
COptONumber String String 
COptCPP String 
OptAlternatives String String [(String, String)] 
RelativeOutside String FilePath 
AbsolutePath String FilePath 
BadRelativePAth String FilePath String 
DistPoint (Maybe String) FilePath 
GlobSyntaxError String String 
InvalidOnWin [FilePath] 
FilePathTooLong FilePath 
FilePathNameTooLong FilePath 
FilePathSplitTooLong FilePath 
FilePathEmpty 
CVTestSuite 
CVDefaultLanguage 
CVDefaultLanguageComponent 
CVExtraDocFiles 
CVMultiLib 
CVReexported 
CVMixins 
CVExtraFrameworkDirs 
CVDefaultExtensions 
CVExtensionsDeprecated 
CVSources 
CVExtraDynamic [[String]] 
CVVirtualModules 
CVSourceRepository 
CVExtensions CabalSpecVersion [Extension] 
CVCustomSetup 
CVExpliticDepsCustomSetup 
CVAutogenPaths 
GlobNoMatch String String 
GlobExactMatch String String FilePath 
GlobNoDir String String FilePath 
UnknownOS [String] 
UnknownArch [String] 
UnknownCompiler [String] 
BaseNoUpperBounds 
SuspiciousFlagName [String] 
DeclaredUsedFlags (Set FlagName) (Set FlagName) 
NonASCIICustomField [String] 
RebindableClash 
WErrorUnneeded String 
JUnneeded String 
FDeferTypeErrorsUnneeded String 
DynamicUnneeded String 
ProfilingUnneeded String 
UpperBoundSetup String 
DuplicateModule String [ModuleName] 
PotentialDupModule String [ModuleName] 
BOMStart FilePath 
NotPackageName FilePath String 
NoDesc 
MultiDesc [String] 
UnknownFile String (SymbolicPath PackageDir LicenseFile) 
MissingSetupFile 
MissingConfigureScript 
UnknownDirectory String FilePath 
MissingSourceControl 

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.

checkPackage :: GenericPackageDescription -> Maybe PackageDescription -> [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.

It requires the GenericPackageDescription and optionally a particular configuration of that package. If you pass Nothing then we just check a version of the generic description using flattenPackageDescription.

Checking package contents

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

Sanity check things that requires IO. It looks at the files in the package and expects to find the package unpacked in at the given file path.

checkPackageContent :: (Monad m, Applicative m) => CheckPackageContentOps m -> PackageDescription -> 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 Source #

A record of operations needed to check the contents of packages. Used by checkPackageContent.

checkPackageFileNames :: [FilePath] -> [PackageCheck] Source #

Check the names of all files in a package for portability problems. This should be done for example when creating or validating a package tarball.