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Exact lookup

1. indexLookupEntry :: IndexCallbacks -> DirectoryEntry -> IO (Some IndexEntry, Maybe DirectoryEntry)

   hackage-security	Hackage.Security.Client

   Look up an entry by DirectoryEntry Since these DirectoryEntrys must come from somewhere (probably from the Directory), it is assumed that they are valid; if they are not, an (unchecked) exception will be thrown. This function also returns the DirectoryEntry of the next file in the index (if any) for the benefit of clients who wish to walk through the entire index.

2. indexLookupFile :: IndexCallbacks -> forall dec . () => IndexFile dec -> IO (Maybe (IndexEntry dec))

   hackage-security	Hackage.Security.Client

   Look up an entry by IndexFile Returns Nothing if the IndexFile does not refer to an existing file.

3. indexLookupFileEntry :: IndexCallbacks -> forall dec . () => DirectoryEntry -> IndexFile dec -> IO (IndexEntry dec)

   hackage-security	Hackage.Security.Client

   Variation if both the DirectoryEntry and the IndexFile are known You might use this when scanning the index using directoryEntries.

4. indexLookupFileInfo :: IndexCallbacks -> (Throws InvalidPackageException, Throws VerificationError) => PackageIdentifier -> IO (Trusted FileInfo)

   hackage-security	Hackage.Security.Client

   Get file info (including hash) (wrapper around indexLookupFile)

5. indexLookupHash :: IndexCallbacks -> (Throws InvalidPackageException, Throws VerificationError) => PackageIdentifier -> IO (Trusted Hash)

   hackage-security	Hackage.Security.Client

   Get the SHA256 hash for a package (wrapper around indexLookupInfo) In addition to the exceptions thrown by indexLookupInfo, this will also throw an exception if the SHA256 is not listed in the FileMap (again, this will not happen with a well-formed Hackage index.)

6. indexLookupMetadata :: IndexCallbacks -> Throws InvalidPackageException => PackageIdentifier -> IO (Trusted Targets)

   hackage-security	Hackage.Security.Client

   Lookup package metadata (wrapper around indexLookupFile) This will throw an (unchecked) exception if the targets.json file could not be parsed.

7. targetsLookup :: TargetPath -> Targets -> Maybe FileInfo

   hackage-security	Hackage.Security.Client

   No documentation available.

8. formatsLookup :: HasFormat fs f -> Formats fs a -> a

   hackage-security	Hackage.Security.Client.Formats

   No documentation available.

9. targetsLookup :: TargetPath -> Targets -> Maybe FileInfo

   hackage-security	Hackage.Security.Server

   No documentation available.

10. tarIndexLookup :: TarIndex -> Path Tar -> Maybe TarIndexEntry

    hackage-security	Hackage.Security.Util.Path

    No documentation available.

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