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module Rules.Documentation (
-- * Rules
buildPackageDocumentation, documentationRules,
-- * Utilities
haddockDependencies
) where
import Hadrian.BuildPath
import Hadrian.Haskell.Cabal
import Hadrian.Haskell.Cabal.Type
import Rules.Generate (ghcPrimDependencies)
import Base
import Context
import Expression (getContextData, interpretInContext, (?), package)
import Flavour
import Oracles.ModuleFiles
import Packages
import Settings
import Target
import Utilities
import Data.List (union)
import qualified Data.Set as Set
import qualified Text.Parsec as Parsec
docRoot :: FilePath
docRoot = "docs"
htmlRoot :: FilePath
htmlRoot = docRoot -/- "html"
pdfRoot :: FilePath
pdfRoot = docRoot -/- "pdfs"
infoRoot :: FilePath
infoRoot = docRoot -/- "info"
archiveRoot :: FilePath
archiveRoot = docRoot -/- "archives"
manPageBuildPath :: FilePath
manPageBuildPath = "docs/users_guide/build-man/ghc.1"
-- TODO: Get rid of this hack.
docContext :: Context
docContext = vanillaContext Stage2 (library "Documentation" "docs")
docPaths :: [FilePath]
docPaths = ["libraries", "users_guide", "Haddock"]
pathPdf :: FilePath -> FilePath
pathPdf path = pdfRoot -/- path <.> ".pdf"
pathIndex :: FilePath -> FilePath
pathIndex path = htmlRoot -/- path -/- "index.html"
pathArchive :: FilePath -> FilePath
pathArchive path = archiveRoot -/- path <.> "html.tar.xz"
-- TODO: Get rid of this hack.
pathPath :: FilePath -> FilePath
pathPath "GHCUsersGuide" = "docs/users_guide"
pathPath "users_guide" = "docs/users_guide"
pathPath "Haddock" = "utils/haddock/doc"
pathPath _ = ""
-- | Build all documentation
documentationRules :: Rules ()
documentationRules = do
buildDocumentationArchives
buildHtmlDocumentation
buildManPage
buildPdfDocumentation
buildSphinxInfoGuide
-- a phony rule that runs Haddock for "Haskell Hierarchical Libraries" and
-- the "GHC-API"
"docs-haddock" ~> do
root <- buildRoot
need [ root -/- pathIndex "libraries" ]
-- a phony rule that runs Haddock, builds the User's guide, builds
-- Haddock's manual, and builds man pages
"docs" ~> do
root <- buildRoot
doctargets <- ghcDocs =<< flavour
let html = htmlRoot -/- "index.html" -- also implies "docs-haddock"
archives = map pathArchive docPaths
pdfs = map pathPdf $ docPaths \\ ["libraries"]
targets = -- include PDFs unless --docs=no-sphinx[-pdf] is
-- passed.
concat [ pdfs | SphinxPDFs `Set.member` doctargets ]
-- include manpage unless --docs=no-sphinx[-man] is given.
++ [ manPageBuildPath | SphinxMan `Set.member` doctargets ]
-- include toplevel html target uness we neither want
-- haddocks nor html pages produced by sphinx.
++ [ html | Set.size (doctargets `Set.intersection`
Set.fromList [Haddocks, SphinxHTML]
) > 0 ]
-- include archives for whatever targets remain from
-- the --docs arguments we got.
++ [ ar
| (ar, doc) <- zip archives docPaths
, archiveTarget doc `Set.member` doctargets ]
need $ map (root -/-) targets
where archiveTarget "libraries" = Haddocks
archiveTarget _ = SphinxHTML
------------------------------------- HTML -------------------------------------
-- | Build rules for HTML documentation.
buildHtmlDocumentation :: Rules ()
buildHtmlDocumentation = do
mapM_ buildSphinxHtml $ docPaths \\ ["libraries"]
buildLibraryDocumentation
root <- buildRootRules
root -/- htmlRoot -/- "index.html" %> \file -> do
doctargets <- ghcDocs =<< flavour
-- We include the HTML output of haddock for libraries unless
-- told not to (e.g with --docs=no-haddocks). Likewise for
-- the HTML version of the users guide or the Haddock manual.
let targets = [ "libraries" | Haddocks `Set.member` doctargets ]
++ concat [ ["users_guide", "Haddock"]
| SphinxHTML `Set.member` doctargets ]
need $ map ((root -/-) . pathIndex) targets
copyFileUntracked "docs/index.html" file
-- | Compile a Sphinx ReStructured Text package to HTML.
buildSphinxHtml :: FilePath -> Rules ()
buildSphinxHtml path = do
root <- buildRootRules
root -/- htmlRoot -/- path -/- "index.html" %> \file -> do
let dest = takeDirectory file
rstFilesDir = pathPath path
rstFiles <- getDirectoryFiles rstFilesDir ["**/*.rst"]
need (map (rstFilesDir -/-) rstFiles)
build $ target docContext (Sphinx Html) [pathPath path] [dest]
------------------------------------ Haddock -----------------------------------
-- | Build the haddocks for GHC's libraries.
buildLibraryDocumentation :: Rules ()
buildLibraryDocumentation = do
root <- buildRootRules
-- Building the "Haskell Hierarchical Libraries" index
root -/- htmlRoot -/- "libraries/index.html" %> \file -> do
need [ "libraries/prologue.txt" ]
-- We want Haddocks for everything except `rts` to be built, but we
-- don't want the index to be polluted by stuff from `ghc`-the-library
-- (there will be a separate top-level link to those Haddocks).
haddocks <- allHaddocks
let neededDocs = filter (\x -> takeFileName x /= "rts.haddock") haddocks
libDocs = filter (\x -> takeFileName x /= "ghc.haddock") neededDocs
need neededDocs
build $ target docContext (Haddock BuildIndex) libDocs [file]
allHaddocks :: Action [FilePath]
allHaddocks = do
pkgs <- stagePackages Stage1
sequence [ pkgHaddockFile $ vanillaContext Stage1 pkg
| pkg <- pkgs, isLibrary pkg, pkgName pkg /= "rts" ]
-- Note: this build rule creates plenty of files, not just the .haddock one.
-- All of them go into the 'docRoot' subdirectory. Pedantically tracking all
-- built files in the Shake database seems fragile and unnecessary.
buildPackageDocumentation :: Rules ()
buildPackageDocumentation = do
root <- buildRootRules
-- Per-package haddocks
root -/- htmlRoot -/- "libraries/*/haddock-prologue.txt" %> \file -> do
ctx <- pkgDocContext <$> getPkgDocTarget root file
-- This is how @ghc-cabal@ used to produces "haddock-prologue.txt" files.
syn <- pkgSynopsis (Context.package ctx)
desc <- pkgDescription (Context.package ctx)
let prologue = if null desc then syn else desc
liftIO $ writeFile file prologue
root -/- htmlRoot -/- "libraries/*/*.haddock" %> \file -> do
context <- pkgDocContext <$> getPkgDocTarget root file
need [ takeDirectory file -/- "haddock-prologue.txt"]
haddocks <- haddockDependencies context
-- `ghc-prim` has a source file for 'GHC.Prim' which is generated just
-- for Haddock. We need to 'union' (instead of '++') to avoid passing
-- 'GHC.PrimopWrappers' (which unfortunately shows up in both
-- `generatedSrcs` and `vanillaSrcs`) to Haddock twice.
generatedSrcs <- interpretInContext context (Expression.package ghcPrim ? ghcPrimDependencies)
vanillaSrcs <- hsSources context
let srcs = vanillaSrcs `union` generatedSrcs
need $ srcs ++ haddocks
-- Build Haddock documentation
-- TODO: Pass the correct way from Rules via Context.
dynamicPrograms <- dynamicGhcPrograms =<< flavour
let haddockWay = if dynamicPrograms then dynamic else vanilla
statsFilesDir <- haddockStatsFilesDir
createDirectory statsFilesDir
build $ target (context {way = haddockWay}) (Haddock BuildPackage) srcs [file]
produces [
statsFilesDir </> pkgName (Context.package context) <.> "t"
]
data PkgDocTarget = DotHaddock PackageName | HaddockPrologue PackageName
deriving (Eq, Show)
pkgDocContext :: PkgDocTarget -> Context
pkgDocContext target = Context Stage1 (unsafeFindPackageByName name) vanilla
where
name = case target of DotHaddock n -> n
HaddockPrologue n -> n
parsePkgDocTarget :: FilePath -> Parsec.Parsec String () PkgDocTarget
parsePkgDocTarget root = do
_ <- Parsec.string root *> Parsec.optional (Parsec.char '/')
_ <- Parsec.string (htmlRoot ++ "/")
_ <- Parsec.string "libraries/"
pkgname <- Parsec.manyTill Parsec.anyChar (Parsec.char '/')
Parsec.choice
[ Parsec.try (Parsec.string "haddock-prologue.txt")
*> pure (HaddockPrologue pkgname)
, Parsec.string (pkgname <.> "haddock")
*> pure (DotHaddock pkgname)
]
getPkgDocTarget :: FilePath -> FilePath -> Action PkgDocTarget
getPkgDocTarget root path =
parsePath (parsePkgDocTarget root) "<doc target>" path
-------------------------------------- PDF -------------------------------------
-- | Build all PDF documentation
buildPdfDocumentation :: Rules ()
buildPdfDocumentation = mapM_ buildSphinxPdf docPaths
-- | Compile a Sphinx ReStructured Text package to LaTeX
buildSphinxPdf :: FilePath -> Rules ()
buildSphinxPdf path = do
root <- buildRootRules
root -/- pdfRoot -/- path <.> "pdf" %> \file -> do
withTempDir $ \dir -> do
let rstFilesDir = pathPath path
rstFiles <- getDirectoryFiles rstFilesDir ["**/*.rst"]
need (map (rstFilesDir -/-) rstFiles)
build $ target docContext (Sphinx Latex) [pathPath path] [dir]
build $ target docContext Xelatex [path <.> "tex"] [dir]
copyFileUntracked (dir -/- path <.> "pdf") file
------------------------------------ Info -- -----------------------------------
buildSphinxInfoGuide :: Rules ()
buildSphinxInfoGuide = do
root <- buildRootRules
let path = "GHCUsersGuide"
root -/- infoRoot -/- path <.> "info" %> \ file -> do
withTempDir $ \dir -> do
let rstFilesDir = pathPath path
rstFiles <- getDirectoryFiles rstFilesDir ["**/*.rst"]
need (map (rstFilesDir -/-) rstFiles)
build $ target docContext (Sphinx Info) [pathPath path] [dir]
cmd_ "make -C " [dir]
copyFileUntracked (dir -/- path <.> "info") file
------------------------------------ Archive -----------------------------------
-- | Build documentation archives.
buildDocumentationArchives :: Rules ()
buildDocumentationArchives = mapM_ buildArchive docPaths
buildArchive :: FilePath -> Rules ()
buildArchive path = do
root <- buildRootRules
root -/- pathArchive path %> \file -> do
root <- buildRoot
let src = root -/- pathIndex path
need [src]
build $ target docContext (Tar Create) [takeDirectory src] [file]
-- | Build the man page.
buildManPage :: Rules ()
buildManPage = do
root <- buildRootRules
root -/- manPageBuildPath %> \file -> do
need ["docs/users_guide/ghc.rst"]
withTempDir $ \dir -> do
build $ target docContext (Sphinx Man) ["docs/users_guide"] [dir]
copyFileUntracked (dir -/- "ghc.1") file
-- | Find the Haddock files for the dependencies of the current library.
haddockDependencies :: Context -> Action [FilePath]
haddockDependencies context = do
depNames <- interpretInContext context (getContextData depNames)
sequence [ pkgHaddockFile $ vanillaContext Stage1 depPkg
| Just depPkg <- map findPackageByName depNames, depPkg /= rts ]
|