exherbo-cabal (empty) → 0.1.0.0
raw patch · 6 files changed
+824/−0 lines, 6 filesdep +Cabaldep +basedep +bytestringsetup-changed
Dependencies added: Cabal, base, bytestring, containers, haddock-library, http-client, pcre-light, pretty
Files
- LICENSE +339/−0
- README.md +23/−0
- Setup.hs +2/−0
- exherbo-cabal.cabal +83/−0
- src/ExRender.hs +277/−0
- src/Main.hs +100/−0
+ LICENSE view
@@ -0,0 +1,339 @@+ GNU GENERAL PUBLIC LICENSE+ Version 2, June 1991++ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA+ Everyone is permitted to copy and distribute verbatim copies+ of this license document, but changing it is not allowed.++ Preamble++ The licenses for most software are designed to take away your+freedom to share and change it. By contrast, the GNU General Public+License is intended to guarantee your freedom to share and change free+software--to make sure the software is free for all its users. This+General Public License applies to most of the Free Software+Foundation's software and to any other program whose authors commit to+using it. (Some other Free Software Foundation software is covered by+the GNU Lesser General Public License instead.) You can apply it to+your programs, too.++ When we speak of free software, we are referring to freedom, not+price. 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See the+ GNU General Public License for more details.++ You should have received a copy of the GNU General Public License along+ with this program; if not, write to the Free Software Foundation, Inc.,+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.++Also add information on how to contact you by electronic and paper mail.++If the program is interactive, make it output a short notice like this+when it starts in an interactive mode:++ Gnomovision version 69, Copyright (C) year name of author+ Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.+ This is free software, and you are welcome to redistribute it+ under certain conditions; type `show c' for details.++The hypothetical commands `show w' and `show c' should show the appropriate+parts of the General Public License. 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+ README.md view
@@ -0,0 +1,23 @@+Description+===========+Generate package description from .cabal files in format of exheres-0 for+Exherbo Linux.++Usage+-----+As a source you can use one of the following reference:+- ./LOCAL-FILE.cabal and /LOCAL-FILE.cabal: read from LOCAL-FILE.cabal+- PACKAGE-VERSION: fetch appropriate package from Hackage++You can either pass sources as a list of arguments or as lines of standard+input if no arguments provided.++Examples+--------+```+> exherbo-cabal mtl-2.2.1+> exherbo-cabal mtl transformers+> echo yesod-core | exherbo-cabal+> exherbo-cabal ./exherbo-cabal.cabal+> find /tmp/index -name \*.cabal | exherbo-cabal+```
+ Setup.hs view
@@ -0,0 +1,2 @@+import Distribution.Simple+main = defaultMain
+ exherbo-cabal.cabal view
@@ -0,0 +1,83 @@+-- Initial exherbo-cabal.cabal generated by cabal init. For further +-- documentation, see http://haskell.org/cabal/users-guide/++-- The name of the package.+name: exherbo-cabal++-- The package version. See the Haskell package versioning policy (PVP) +-- for standards guiding when and how versions should be incremented.+-- http://www.haskell.org/haskellwiki/Package_versioning_policy+-- PVP summary: +-+------- breaking API changes+-- | | +----- non-breaking API additions+-- | | | +--- code changes with no API change+version: 0.1.0.0++-- A short (one-line) description of the package.+synopsis: Exheres generator for cabal packages++-- A longer description of the package.+description: Generate package description from .cabal files in format+ of exheres-0 for Exherbo Linux.++-- The license under which the package is released.+license: GPL-2++-- The file containing the license text.+license-file: LICENSE++-- The package author(s).+author: Mykola Orliuk++-- An email address to which users can send suggestions, bug reports, and +-- patches.+maintainer: virkony@gmail.com++-- A copyright notice.+-- copyright: ++category: Distribution++build-type: Simple++-- Extra files to be distributed with the package, such as examples or a +-- README.+extra-source-files: README.md++-- Constraint on the version of Cabal needed to build this package.+cabal-version: >=1.10++source-repository head+ type: git+ location: https://github.com/ony/exherbo-cabal++executable exherbo-cabal+ -- .hs or .lhs file containing the Main module.+ main-is: Main.hs+ + -- Modules included in this executable, other than Main.+ other-modules: ExRender+ + -- LANGUAGE extensions used by modules in this package.+ other-extensions:+ FlexibleInstances,+ OverloadedStrings,+ UnicodeSyntax,+ ViewPatterns+ + -- Other library packages from which modules are imported.+ build-depends:+ Cabal >=1.18 && <1.19,+ base >=4.7 && <4.8,+ bytestring >=0.10 && <0.11,+ containers,+ haddock-library >=1.0 && <1.3,+ http-client >=0.4 && <0.5,+ pcre-light <0.5,+ pretty >=1.1 && <1.2+ + -- Directories containing source files.+ -- hs-source-dirs: + hs-source-dirs: src+ + -- Base language which the package is written in.+ default-language: Haskell2010
+ src/ExRender.hs view
@@ -0,0 +1,277 @@+-- Copyright © 2015 Mykola Orliuk <virkony@gmail.com>+-- Distributed under the terms of the GNU General Public License v2++{-# LANGUAGE UnicodeSyntax, ViewPatterns #-}+{-# LANGUAGE OverloadedStrings #-}+{-# LANGUAGE FlexibleInstances #-}++module ExRender (exDisp, exDispQ, exRender) where++import Data.Maybe+import Data.List+import Data.Function+import qualified Data.Map as M+import Text.PrettyPrint++import Control.Arrow ((&&&))++import Distribution.Text+import Distribution.Package+import Distribution.Version+import Distribution.License+import Distribution.Compiler+import Distribution.System+import Distribution.PackageDescription+import Documentation.Haddock.Parser+import Documentation.Haddock.Types hiding (Version)++exWrapWidth ∷ Int+exWrapWidth = 80++exGHCVersion ∷ Version+exGHCVersion = Version [7, 8, 2] [] -- TODO: solve this hard-coded GHC version assumption++exKnownLicenses ∷ [String]+exKnownLicenses = ["CC0"]++dquoted ∷ String → String+dquoted [] = []+dquoted ('\\':xs) = "\\\\" ++ dquoted xs+dquoted ('"':xs) = "\\\"" ++ dquoted xs+dquoted (x:xs) = x : dquoted xs++softWidth ∷ Int → [String] → [[String]]+softWidth width = build 0 [] where+ build _ ys [] = [reverse ys]+ build 0 [] (w:ws) = build (length w) [w] ws+ build n ys (w:ws) | n' > width = reverse ys : build 0 [] (w:ws)+ | otherwise = build n' (w : ys) ws+ where+ n' = length w + n++reflow ∷ Int → String → Doc+reflow width = vcat . map (text . unwords) . softWidth width . words++-- |Wrap doc with spaces around+spaces ∷ Doc → Doc+spaces doc | isEmpty doc = empty+ | otherwise = space <> doc <> space++-- |Wrap with brackets non-empty doc+nbrackets ∷ Doc → Doc+nbrackets doc | isEmpty doc = empty+ | otherwise = brackets doc++class ExRender a where+ -- |Renders 'a' into a 'Doc' representing some part of exheres+ exDisp :: a → Doc++class ExRenderQ a where+ -- |Renders 'a' into a 'Doc' to be placed within double-quotes inside of exheres+ exDispQ :: a → Doc++instance ExRenderQ String where+ -- TODO: exDispQ = sep . map text . words . dquoted+ exDispQ = text . dquoted++instance ExRender Identifier where exDisp (_, s, _) = text s+instance ExRenderQ Identifier where exDispQ = exDisp++instance ExRenderQ id => ExRenderQ (DocH mod id) where+ exDispQ x = case x of+ DocEmpty → empty+ DocAppend a b → exDispQ a <> exDispQ b+ DocString s → exDispQ s+ DocParagraph a → exDispQ a+ DocIdentifier s → exDispQ s+ DocModule s → exDispQ s+ DocWarning a → exDispQ a+ DocEmphasis a → exDispQ a+ DocMonospaced a → exDispQ a+ DocBold a → exDispQ a+ DocHyperlink (Hyperlink _ (Just s)) → exDispQ s+ DocHyperlink (Hyperlink s Nothing) → exDispQ s+ DocPic _ → empty -- XXX: no images in description+ DocAName s → exDispQ s+ DocProperty s → exDispQ s+ DocExamples _ → empty -- XXX: examples are filtered out++instance ExRender LowerBound where+ exDisp (LowerBound v InclusiveBound) = ">=" <> disp v+ exDisp (LowerBound v ExclusiveBound) = ">" <> disp v++instance ExRender UpperBound where+ exDisp (UpperBound v InclusiveBound) = "<=" <> disp v+ exDisp (UpperBound v ExclusiveBound) = "<" <> disp v+ exDisp x = error $ "Unsupported UpperBound: " ++ show x++instance ExRender VersionInterval where+ exDisp (LowerBound v InclusiveBound,+ UpperBound v' InclusiveBound) | v == v' = brackets ("=" <> disp v)+ exDisp (LowerBound (Version [0] []) InclusiveBound, NoUpperBound) = empty+ exDisp (LowerBound (Version [0] []) InclusiveBound, ub) = brackets (exDisp ub)+ exDisp (lb, NoUpperBound) = brackets (exDisp lb)+ exDisp (lb, ub) = brackets (exDisp lb <> char '&' <> exDisp ub)++instance ExRender VersionRange where+ exDisp vr = case asVersionIntervals vr of+ [vi] → exDisp vi+ _ → error $ "Unsupported version range: " ++ display vr++instance ExRender Dependency where+ exDisp (Dependency n vr) = "dev-haskell/" <> disp n <> exDisp vr++instance ExRender License where+ exDisp (GPL Nothing) = "Unspecified-GPL"+ exDisp (GPL (Just v)) = "GPL-" <> disp v+ exDisp (AGPL (Just v)) = "AGPL-" <> disp v+ exDisp (LGPL Nothing) = "Unspecified-LGPL"+ exDisp (LGPL (Just v)) = "LGPL-" <> disp v+ exDisp (Apache Nothing) = "Unspecified-Apache"+ exDisp (Apache (Just v)) = "Apache-" <> disp v+ exDisp BSD3 = "BSD-3"+ exDisp BSD4 = "BSD-4"+ exDisp MIT = "MIT"+ exDisp (UnknownLicense "BSD2") = "BSD-2"+ exDisp (UnknownLicense "MPL-2") = "MPL-2.0"+ exDisp (UnknownLicense x) | x `elem` exKnownLicenses = text x+ exDisp x = error $ "Unsupported license: " ++ display x++instance ExRender GenericPackageDescription where+ exDisp descr = exheres where+ nameSelf = pkgName . package $ packageDescription descr+ ignoredPkgIds = map (fromJust . simpleParse) ["base", "ghc", "ghc-prim"]++ ignoredDep (Dependency n _) | n `elem` ignoredPkgIds = True+ ignoredDep _ = False+ ignoredTestDep (Dependency n _) | n == nameSelf = True+ ignoredTestDep d = ignoredDep d+ ignoredBinDep (Dependency n _) | n == nameSelf = True+ ignoredBinDep d = ignoredDep d++ exDepFn name deps = vcat [+ text ("$(" ++ name) <> " \"",+ nest 4 . vcat . map exDisp . mergeSortedDeps $ sortDeps deps,+ "\")"]++ exLibDeps | null libDeps = empty+ | otherwise = exDepFn "haskell_lib_dependencies" libDeps+ where+ libDeps = filter (not . ignoredDep) (collectLibDeps descr)++ exBinDeps | null binDeps = empty+ | otherwise = exDepFn "haskell_bin_dependencies" binDeps+ where+ binDeps = filter (not . ignoredBinDep) (collectBinDeps descr)++ exTestDeps = case condTestSuites descr of+ [] → empty+ _ → exDepFn "haskell_test_dependencies" testDeps where+ testDeps = filter (not . ignoredTestDep) (collectTestDeps descr)++ exDependencies = vcat [+ "DEPENDENCIES=\"",+ nest 4 exLibDeps,+ nest 4 exTestDeps,+ nest 4 exBinDeps,+ "\""]++ pkgDescr = packageDescription descr++ hasLib = isJust $ condLibrary descr+ hasBin = not . null $ condExecutables descr+ hasMods = maybe False (not . null . exposedModules . condTreeData) . condLibrary $ descr+ exRequire = "require hackage" <+> nbrackets exParams+ where+ exHasLib = if hasLib then empty else "has_lib=false"+ exHasBin = if hasBin then "has_bin=true" else empty+ exHasOptions | hasMods || not hasLib = empty+ | otherwise = hsep [+ "has_haddock=false",+ "has_hscolour=false",+ "has_profile=false"+ ]+ exParams = spaces $ exHasLib <+> exHasBin <+> exHasOptions++ exheres = vcat [+ "# Copyright 2015 Mykola Orliuk <virkony@gmail.com>",+ "# Distributed under the terms of the GNU General Public License v2",+ "# Generated for " <> disp (package pkgDescr),+ "",+ exRequire,+ "",+ exField "SUMMARY" (synopsis pkgDescr),+ exFieldDoc "DESCRIPTION" (exDispQ . toRegular . parseString $ description pkgDescr),+ exField "HOMEPAGE" (homepage pkgDescr),+ "",+ exField "LICENCES" (exRender $ license pkgDescr),+ exField "PLATFORMS" "~amd64",+ "",+ exDependencies,+ "",+ exField "BUGS_TO" "virkony@gmail.com",+ ""+ ]++-- |Collect dependencies from all 'CondTree' nodes of+-- 'GenericPackageDescription' using provided view+collectDeps ∷ (GenericPackageDescription → [CondTree ConfVar [Dependency] a])+ → GenericPackageDescription → [Dependency]+collectDeps view descr = concatMap build (view descr) where+ flags = M.fromList . map (flagName &&& id) $ genPackageFlags descr+ eval (Var (Flag k)) = flagDefault . fromJust $ M.lookup k flags+ eval (Var (OS Linux)) = True -- TODO: solve this hard-coded OS assumption+ eval (Var (OS _)) = False+ eval (Var (Arch X86_64)) = True -- TODO: support other platforms besides amd64+ eval (Var (Arch _)) = False+ eval (Var (Impl GHC vr)) = exGHCVersion `withinRange` vr+ eval (Var (Impl _ _)) = False -- XXX: no support for non-GHC compilers+ eval (Lit f) = f+ eval (CNot e) = not (eval e)+ eval (COr a b) = eval a || eval b+ eval (CAnd a b) = eval a || eval b+ -- eval e = error $ "Unsupported expr " ++ show e++ build t = condTreeConstraints t ++ concatMap buildOptional (condTreeComponents t)++ buildOptional (eval → True, t, _) = build t+ buildOptional (eval → False, _, Just t) = build t+ buildOptional (eval → False, _, Nothing) = []++collectLibDeps, collectBinDeps, collectTestDeps ∷ GenericPackageDescription → [Dependency]+collectLibDeps = collectDeps (maybeToList . condLibrary)+collectBinDeps = collectDeps (map snd . condExecutables)+collectTestDeps = collectDeps (map snd . condTestSuites)++-- |Render 'a' to a final part of Exheres+exRender ∷ ExRender a ⇒ a → String+exRender = render . exDisp++-- |Render a multi-line meta-field of Exheres if non-empty value+exFieldDoc ∷ String → Doc → Doc+exFieldDoc name value | isEmpty value = empty+ | otherwise = vcat [text name <> "=\"", value, char '"']++-- |Render a single-line with potential wrap meta-field of Exheres if non-empty value+exField ∷ String → String → Doc+exField _ "" = empty+exField name x | length singleLine < exWrapWidth = text singleLine+ | otherwise = exFieldDoc name (reflow exWrapWidth (dquoted x))+ where+ singleLine = name ++ "=\"" ++ dquoted x ++ "\""++-- |Sort dependencies according to Exherbo order+sortDeps ∷ [Dependency] → [Dependency]+sortDeps = sortBy (compare `on` display)++-- |Merge sorted deps to through applying the most tighten ones+mergeSortedDeps ∷ [Dependency] → [Dependency]+mergeSortedDeps [] = []+mergeSortedDeps [x] = [x]+mergeSortedDeps (x:y:z) = case (x, y) of+ (Dependency n v, Dependency n' v') | n == n' →+ mergeSortedDeps (Dependency n (intersectVersionRanges v v') : z)+ _ → x : mergeSortedDeps (y:z)++-- TODO: drop test deps that already in build+-- TODO: use renderStyle instead of manual wrapping
+ src/Main.hs view
@@ -0,0 +1,100 @@+-- Copyright © 2015 Mykola Orliuk <virkony@gmail.com>+-- Distributed under the terms of the GNU General Public License v2++{-# LANGUAGE ViewPatterns, UnicodeSyntax #-}++module Main where++import Control.Applicative+import Control.Monad+import Control.Exception+import Data.Maybe+import Data.ByteString.Lazy.Char8 (unpack)++import System.Environment+import System.IO++import Distribution.Text+import Distribution.Package+import Distribution.License+import Distribution.Version+import Distribution.PackageDescription+import Distribution.PackageDescription.Parse+import Distribution.Verbosity+import Network.HTTP.Client++import qualified Text.Regex.PCRE.Light.Char8 as R++import ExRender++-- |Fetch content by provided URI+simpleFetch ∷ String → IO String+simpleFetch url = do+ let settings = defaultManagerSettings+ req ← parseUrl url+ withManager settings $ liftM (unpack . responseBody) . httpLbs req++licenseHints ∷ [(R.Regex, License)]+licenseHints = [+ (R.compile "http://creativecommons\\.org/publicdomain/zero/1\\.0/" [R.multiline], UnknownLicense "CC0"),+ (R.compile "http://www\\.apache\\.org/licenses/LICENSE-2\\.0" [R.multiline], Apache (Just $ Version [2, 0] [])),+ (R.compile "GNU AFFERO GENERAL PUBLIC LICENSE\\s*Version 3," [R.multiline], UnknownLicense "AGPL-3"),+ (R.compile "Mozilla Public License Version 2\\.0$" [R.multiline], UnknownLicense "MPL-2")+ ]++guessLicense ∷ String → IO License+guessLicense text | isJust foundLicense = return $ fromJust foundLicense where+ foundLicense = listToMaybe $ mapMaybe hint licenseHints+ hint (re, answer) = const answer <$> R.match re text []++guessLicense _ = return OtherLicense++hackageBaseUri ∷ String+hackageBaseUri = "http://hackage.haskell.org/package/"++fixLicense ∷ GenericPackageDescription → IO GenericPackageDescription+fixLicense descr | license pkgDescr == OtherLicense = adjustLicense+ | otherwise = return descr+ where+ pkgDescr = packageDescription descr+ packageUri = hackageBaseUri ++ display (package pkgDescr)+ adjustLicense = do+ let licensePath = licenseFile pkgDescr+ licenseContent ← simpleFetch (packageUri ++ "/src/" ++ licensePath)+ license' ← guessLicense licenseContent+ case license' of+ OtherLicense → do+ hPutStrLn stderr licenseContent+ return descr+ _ → do+ let pkgDescr' = pkgDescr { license = license' }+ descr' = descr { packageDescription = pkgDescr' }+ return descr'++-- |Fetch and parse cabal file for specific 'PackageIdentifier' using URL build+-- in form of http://hackage.haskell.org/package/<pkgid>/<pkgname>.cabal+fetchPackageDescription ∷ PackageIdentifier → IO GenericPackageDescription+fetchPackageDescription pkgid = do+ let cabalFile = display (packageName pkgid) ++ ".cabal"+ packageUri = hackageBaseUri ++ display pkgid+ url = packageUri ++ "/" ++ cabalFile+ ParseOk _ descr ← liftM parsePackageDescription $ simpleFetch url+ fixLicense descr++main ∷ IO ()+main = do+ args ← getArgs+ sources ← case args of+ [] → liftM lines getContents+ _ → return args+ forM_ sources $ \source → do+ descr ← case source of+ ('.':_) → readPackageDescription verbose source >>= fixLicense+ ('/':_) → readPackageDescription verbose source >>= fixLicense+ (simpleParse → Just pkgId) -> fetchPackageDescription pkgId+ _ -> error $ "Specified source " ++ show source+ ++ " neither starts with '.' or '/' (local file)"+ ++ " nor a valid packageIdentifier (to fetch from hackage)"+ let handler ∷ SomeException → IO ()+ handler e = hPutStrLn stderr $ "# Failed fetch/generate for " ++ show source ++ ": " ++ show e+ catch (evaluate (exRender descr) >>= putStrLn) handler