Get the hash of a script's absolute path.
Two hashes will be the same as long as the absolute paths are the same.
Modulecabal-install-3.18.1.0Haskell2010
Distribution.Client.ScriptUtils
Utilities to help commands with scripts
Synopsis
- value getScriptHash
- value getScriptCacheDirectory
- value ensureScriptCacheDirectory
- value withContextAndSelectors
- data AcceptNoTargets
- data TargetContext
- type TargetsAction
- value updateContextAndWriteProjectFile
- value updateContextAndWriteProjectFile'
- value fakeProjectSourcePackage
- value lSrcpkgDescription
- value movedExePath
- Packagecabal-install-3.18.1.0
- Exports12
- LanguageHaskell2010
- LicenceBSD-3-Clause
- SourceScriptUtils.hs
Get the directory for caching a script build.
The only identity of a script is it's absolute path, so append the
hashed path to the script-builds dir to get the cache directory.
Get the directory for caching a script build and ensure it exists.
The only identity of a script is it's absolute path, so append the
hashed path to the script-builds dir to get the cache directory.
value
withContextAndSelectors :: Verbosity-> AcceptNoTargetsWhat your command should do when no targets are found.
-> Maybe ComponentKindA target filter
-> NixStyleFlags aCommand line flags
-> [String]Target strings or a script and args.
-> GlobalFlagsGlobal flags.
-> CurrentCommandCurrent Command (usually for error reporting).
-> TargetsAction [TargetSelector] b-> IO b
Determine whether the targets represent regular targets or a script and return the proper context and target selectors. Die with an error message if selectors are valid as neither regular targets or as a script.
In the case that the context refers to a temporary directory, delete it after the action finishes.
What your command should do when no targets are found.
Constructors
RejectNoTargetsAcceptNoTargetsreturn a default TargetSelector
Instances2Eq, Show
Eq AcceptNoTargetsDefined in cabal-install-3.18.1.0 · Distribution.Client.ScriptUtilsShow AcceptNoTargetsDefined in cabal-install-3.18.1.0 · Distribution.Client.ScriptUtils
Information about the context in which we found the TargetSelectors.
Constructors
ProjectContextThe target selectors are part of a project.
GlobalContextThe target selectors are from the global context.
ScriptContext FilePath ExecutableThe target selectors refer to a script. Contains the path to the script and the executable metadata parsed from the script
Instances2Eq, Show
Eq TargetContextDefined in cabal-install-3.18.1.0 · Distribution.Client.ScriptUtilsShow TargetContextDefined in cabal-install-3.18.1.0 · Distribution.Client.ScriptUtils
An action working with selected targets within a context.
Add the executable metadata to the context and write a .cabal file.
Add the SourcePackage to the context and use it to write a .cabal file.
The base for making a SourcePackage for a fake project. It needs a Library or Executable depending on the command.
value
lSrcpkgDescription :: Functor f => LensLike f (SourcePackage loc) (SourcePackage loc) GenericPackageDescription GenericPackageDescriptionA lens for the srcpkgDescription field of SourcePackage
Find the path of an exe that has been relocated with a "-o" option