fedora-repoquery (empty) → 0.1.0

raw patch · 12 files changed

+1425/−0 lines, 12 filesdep +basedep +bodhidep +bytestring

Dependencies added: base, bodhi, bytestring, cached-json-file, directory, extra, filepath, http-client, http-directory, optparse-applicative, regex-compat, simple-cmd, simple-cmd-args, text, time

Files

COPYING +674/−0
ChangeLog.md +4/−0
README.md +55/−0
fedora-repoquery.cabal +98/−0
src/Cache.hs +51/−0
src/Common.hs +28/−0
src/List.hs +30/−0
src/Main.hs +65/−0
src/Query.hs +230/−0
src/Types.hs +107/−0
src/URL.hs +52/−0
test/tests.hs +31/−0

+ COPYING view

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+ ChangeLog.md view

@@ -0,0 +1,4 @@+# Revision history for fedora-repoquery++## 0.1.0 (2023-05-07)+- initial release with support for fedora releases, epel, eln and centos stream

+ README.md view

@@ -0,0 +1,55 @@+# fedora-repoquery++A work-in-progress wrapper for dnf repoquery.++## Usage+Usage examples:++`fdrq rawhide firefox`++`fdrq f38 --requires podman`++etc++```shellsession+$ fdrq --version+0.1.0+$ fdrq --help+Fedora repoquery tool++Usage: fdrq [--version] [(-q|--quiet) | (-v|--verbose)] [-K|--koji]+            [--centos-devel | --test] [(-m|--mirror URL) | (-D|--dl)]+            [(-s|--source) | (-a|--arch ARCH)] [-d|--debug]+            ((-z|--cache-size) | (-e|--cache-clean-empty) | (-l|--list) |+              RELEASE [[REPOQUERY_OPTS] [PACKAGE]...])+  Tool for querying Fedora repos for packages.++Available options:+  -h,--help                Show this help text+  --version                Show version+  -q,--quiet               Avoid output to stderr+  -v,--verbose             Show stderr from dnf repoquery+  -K,--koji                Use Koji buildroot+  --centos-devel           Use centos-stream development compose+  --test                   Use centos-stream test compose [default: production]+  -m,--mirror URL          Fedora mirror [default:+                           https://download.fedoraproject.org/pub]+  -D,--dl                  Use dl.fp.o+  -s,--source              Query source repos+  -a,--arch ARCH           Specify arch [default: x86_64]+  -d,--debug               Show some debug output+  -z,--cache-size          Show total dnf repo metadata cache disksize+  -e,--cache-clean-empty   Remove empty dnf caches+  -l,--list                List Fedora versions+```++## Installation+fedora-repoquery can be installed from+[copr](https://copr.fedorainfracloud.org/coprs/petersen/fedora-repoquery/)++## Building from source+Use `stack install` or `cabal install`.++## Contributing++fedora-repoquery is distributed under the GPL license version 3 or later.

+ fedora-repoquery.cabal view

@@ -0,0 +1,98 @@+name:                fedora-repoquery+version:             0.1.0+synopsis:            Fedora repoquery tool+description:+        CLI tool for querying the location and version of Fedora packages+license:             GPL-3+license-file:        COPYING+author:              Jens Petersen <juhpetersen@gmail.com>+maintainer:          Jens Petersen <juhpetersen@gmail.com>+copyright:           2021-2023  Jens Petersen <juhpetersen@gmail.com>+category:            Utility+homepage:            https://github.com/juhp/fedora-repoquery+bug-reports:         https://github.com/juhp/fedora-repoquery/issues+build-type:          Simple+extra-doc-files:     README.md+                     ChangeLog.md+cabal-version:       2.0+tested-with:         GHC == 8.4.4, GHC == 8.6.5, GHC == 8.8.4, GHC == 8.10.7++source-repository head+  type:                git+  location:            https://github.com/juhp/fedora-repoquery.git++executable fdrq+  main-is:             Main.hs+  autogen-modules:     Paths_fedora_repoquery+  other-modules:       Paths_fedora_repoquery+                       Cache+                       Common+                       List+                       Query+                       Types+                       URL+  hs-source-dirs:      src+  build-depends:       base < 5,+                       bodhi,+                       bytestring,+                       cached-json-file,+                       directory,+                       extra,+                       filepath,+                       http-client,+                       http-directory >= 0.1.4 && (< 0.1.6 || >= 0.1.8),+                       optparse-applicative,+                       regex-compat,+                       simple-cmd,+                       simple-cmd-args,+                       text,+                       time++  default-language:    Haskell2010+  ghc-options:         -Wall+  if impl(ghc >= 8.0)+    ghc-options:       -Wcompat+                       -Widentities+                       -Wincomplete-uni-patterns+                       -Wincomplete-record-updates+                       -Wredundant-constraints+  if impl(ghc >= 8.2)+    ghc-options:       -fhide-source-paths+  if impl(ghc >= 8.4)+    ghc-options:       -Wmissing-export-lists+                       -Wpartial-fields+  if impl(ghc >= 8.10)+    ghc-options:       -Wunused-packages++-- library+--   build-depends:       base < 5+--   default-language:    Haskell2010+--   exposed-modules:     Distribution.Fedora.Repoquery+--   hs-source-dirs:      src++--   ghc-options:         -Wall+--   if impl(ghc >= 8.0)+--     ghc-options:       -Wcompat+--                        -Widentities+--                        -Wincomplete-uni-patterns+--                        -Wincomplete-record-updates+--                        -Wredundant-constraints+--   if impl(ghc >= 8.2)+--     ghc-options:       -fhide-source-paths+--   if impl(ghc >= 8.4)+--     ghc-options:       -Wmissing-export-lists+--                        -Wpartial-fields+--   if impl(ghc >= 8.10)+--     ghc-options:       -Wunused-packages++test-suite test+    main-is: tests.hs+    type: exitcode-stdio-1.0+    hs-source-dirs: test++    default-language: Haskell2010++    ghc-options:   -Wall+    build-depends: base >= 4 && < 5+                 , simple-cmd+    build-tool-depends: fedora-repoquery:fdrq

+ src/Cache.hs view

@@ -0,0 +1,51 @@+module Cache+  (cacheSize,+   cleanEmptyCaches)+where++import Control.Monad+import Data.List.Extra+import SimpleCmd+import System.Directory+import System.FilePath++cacheDir :: IO FilePath+cacheDir = do+  dirs <- lines <$> shell "ls -d /var/tmp/dnf-*"+  case dirs of+    [] -> error' "no /var/tmp/dnf-*/ cache found"+    [d] -> return d+    _ -> error' "More than one /var/tmp/dnf-*/ cache found"++cacheSize :: IO ()+cacheSize = do+  cache <- cacheDir+  cmd_ "du" ["-sh", cache]++cleanEmptyCaches :: IO ()+cleanEmptyCaches = do+  cache <- cacheDir+  withCurrentDirectory cache $ do+    repocaches <- groupOn cachePrefix .+                  filter (\ f -> '.' `notElem` f && '-' `elem` f) <$>+                  listDirectory "."+    mapM_ removeEmptyCaches repocaches+  where+    removeEmptyCaches :: [FilePath] -> IO ()+    removeEmptyCaches [] = return ()+    removeEmptyCaches (r:rs) = do+      let repodata = r </> "repodata"+      exists <- doesDirectoryExist repodata+      if exists+        then do+        files <- listDirectory repodata+        when (null files) $ do+          putStrLn $ "removing " ++ r+          removeDirectory repodata+          removeDirectory r+        else putStrLn ("removing " ++ r) >> removeDirectory r+      removeEmptyCaches rs++-- "AppStream-8-312ff1df17be2171" -> "AppStream-8-"+cachePrefix :: FilePath -> String+cachePrefix = dropWhileEnd (/= '-')

+ src/Common.hs view

@@ -0,0 +1,28 @@+{-# LANGUAGE CPP #-}++module Common (+  Manager,+  warning,+#if !MIN_VERSION_http_directory(0,1,6)+  noTrailingSlash+#endif+  ) where++import Network.HTTP.Client (Manager)+#if !MIN_VERSION_http_directory(0,1,6)+import qualified Data.Text as T+#endif++#if MIN_VERSION_simple_cmd(0,2,0)+import SimpleCmd (warning)+#else+import System.IO (hPutStrLn, stderr)++warning :: String -> IO ()+warning = hPutStrLn stderr+#endif++#if !MIN_VERSION_http_directory(0,1,6)+noTrailingSlash :: T.Text -> T.Text+noTrailingSlash = T.dropWhileEnd (== '/')+#endif

+ src/List.hs view

@@ -0,0 +1,30 @@+{-# LANGUAGE OverloadedStrings #-}++module List (+  listVersionsCmd+  ) where++import Control.Monad+import qualified Data.Text.IO as T+import Network.HTTP.Directory+--import SimpleCmd (error')++import Common+import Query (getFedoraServer, fedoraTop)+import Types+import URL++listVersionsCmd :: Verbosity -> RepoSource -> IO ()+-- listVersionsCmd _verbose _reposource =+--   error' "listing Centos Stream versions not supported"+--   --showReleaseCmd mgr server (RepoCentosStream chan) X86_64+-- listVersionsCmd _ RepoKoji =+--   error' "listing Koji versions not supported"+listVersionsCmd verbose reposource = do+  mgr <- httpManager+  -- FIXME handle non-fedora versions (eg epel)+  (url,_) <- getFedoraServer False mgr reposource fedoraTop ["releases"]+  let rurl = renderUrl url+  unless (verbose == Quiet) $ warning $! "<" ++ rurl ++ ">"+  -- FIXME filter very old releases+  httpDirectory mgr rurl >>= mapM_ (T.putStrLn . noTrailingSlash)

+ src/Main.hs view

@@ -0,0 +1,65 @@+{-# LANGUAGE CPP #-}+{-# LANGUAGE OverloadedStrings #-}++-- SPDX-License-Identifier: GPL-3.0-or-later++module Main (main) where++#if !MIN_VERSION_simple_cmd_args(0,1,4)+import Control.Applicative (+  many,+#if !MIN_VERSION_simple_cmd_args(0,1,3)+  (<|>)+#endif+  )+#endif+#if !MIN_VERSION_simple_cmd_args(0,1,7)+import Options.Applicative (eitherReader, maybeReader, ReadM)+#endif+import SimpleCmdArgs+import System.IO (BufferMode(NoBuffering), hSetBuffering, stdout)++--import Distribution.Fedora.Repoquery++import Cache+import List+import Paths_fedora_repoquery (version)+import Query+import Types++data Command = Query Release [String] | CacheSize | CacheEmpties | List++main :: IO ()+main = do+  hSetBuffering stdout NoBuffering+  simpleCmdArgs' (Just version) "Fedora repoquery tool"+    "Tool for querying Fedora repos for packages." $+    runMain+    <$> (flagWith' Quiet 'q' "quiet" "Avoid output to stderr" <|> flagWith Normal Verbose 'v' "verbose" "Show stderr from dnf repoquery")+    <*> (RepoSource+          <$> switchWith 'K' "koji" "Use Koji buildroot"+          <*> (flagLongWith' CentosDevel "centos-devel" "Use centos-stream development compose" <|>+               flagLongWith CentosProd CentosTest "test" "Use centos-stream test compose [default: production]")+          <*> ((Mirror <$> strOptionWith 'm' "mirror" "URL" ("Fedora mirror [default: " ++ downloadServer ++ "]")) <|>+               flagWith DownloadFpo DlFpo 'D' "dl" "Use dl.fp.o"))+    <*> (flagWith' Source 's' "source" "Query source repos" <|>+         optionalWith (eitherReader readArch) 'a' "arch" "ARCH" "Specify arch [default: x86_64]" X86_64)+    <*> switchWith 'd' "debug" "Show some debug output"+    <*> (flagWith' CacheSize 'z' "cache-size" "Show total dnf repo metadata cache disksize"+         <|> flagWith' CacheEmpties 'e' "cache-clean-empty" "Remove empty dnf caches"+         <|> flagWith' List 'l' "list" "List Fedora versions"+         <|> Query <$> argumentWith releaseM "RELEASE" <*> many (strArg "[REPOQUERY_OPTS] [PACKAGE]..."))+  where+    releaseM :: ReadM Release+    releaseM = maybeReader readRelease++runMain :: Verbosity -> RepoSource -> Arch -> Bool -> Command -> IO ()+runMain verbose reposource arch debug command = do+  case command of+    CacheSize -> cacheSize+    CacheEmpties -> cleanEmptyCaches+    List -> listVersionsCmd verbose reposource+    Query release args -> do+      if null args+      then showReleaseCmd debug reposource release arch+      else repoqueryCmd debug verbose release reposource arch args

+ src/Query.hs view

@@ -0,0 +1,230 @@+{-# LANGUAGE CPP, OverloadedStrings #-}++module Query (+  getFedoraServer,+  repoqueryCmd,+  showReleaseCmd,+  downloadServer,+  fedoraTop+  ) where++import Control.Monad.Extra+import qualified Data.ByteString.Char8 as B+import qualified Data.List as L+import Data.Maybe+import Data.Time.LocalTime (utcToLocalZonedTime)+import Fedora.Bodhi+import Network.HTTP.Directory+import SimpleCmd+import System.Cached.JSON+import System.Directory (doesFileExist)+import Text.Regex++#if !MIN_VERSION_simple_cmd(0,2,0)+import Common (warning)+#endif+import Types+import URL++showReleaseCmd :: Bool -> RepoSource -> Release  -> Arch -> IO ()+showReleaseCmd debug reposource release arch =+  void $ showRelease debug Normal False reposource release arch++repoqueryCmd :: Bool -> Verbosity -> Release -> RepoSource -> Arch -> [String]+             -> IO ()+repoqueryCmd debug verbose release reposource arch args = do+  repoConfigs <- showRelease debug verbose True reposource release arch+  let qfAllowed = not $ any (`elem` ["-i","--info","-l","--list","-s","--source","--nvr","--nevra","--envra","-qf","--queryformat"]) args+      queryformat = "%{name}-%{version}-%{release}.%{arch} (%{repoid})"+  -- LANG=C.utf8+  rhsm <- doesFileExist "/etc/dnf/plugins/subscription-manager.conf"+  let cmdargs = "repoquery" :+                ["--quiet" | verbose /= Verbose] +++                -- https://bugzilla.redhat.com/show_bug.cgi?id=1876828+                ["--disableplugin=subscription-manager" | rhsm] +++                (if qfAllowed then ["--qf", queryformat] else []) +++                ["--setopt=module_platform_id=platform:" ++ show release] +++                concatMap renderRepoConfig repoConfigs +++                args+  when debug $+    warning $ unwords $ "\ndnf" : map show cmdargs+  res <- cmdLines "dnf" cmdargs+  unless (null res) $ do+    unless (verbose == Quiet) $ warning ""+    putStrLn $ L.intercalate "\n" res++-- majorVersion :: Release -> String+-- majorVersion (Fedora n) = show n+-- majorVersion Rawhide = "rawhide"++repoVersion :: Release -> String -> String+repoVersion Rawhide _ = "fedora-rawhide"+repoVersion release repo =+  show release +++  case release of+    Centos _ -> '-':repo+    ELN -> '-':repo+    Fedora _ | repo == "updates" -> '-':repo+    _ -> ""++repoConfigArgs :: RepoSource -> Arch -> Release+               -> (String,URL) -> (String,(URL,[String]))+-- non-koji+repoConfigArgs (RepoSource False _chan mirror) arch release (repo,url) =+  -- FIXME default to system arch+  let archsuffix = if arch == X86_64 then "" else "-" ++ showArch arch+      reponame = repoVersion release repo ++ archsuffix +++                 case mirror of+                   DownloadFpo -> ""+                   Mirror serv ->+                     '-' : subRegex (mkRegex "https?://") serv ""+                   DlFpo -> "-dl.fpo"+      path =+        case release of+          Centos _ -> [repo, showArch arch] ++ (if arch == Source then ["tree"] else ["os"])+          ELN -> [repo, showArch arch] ++ (if arch == Source then ["tree"] else ["os"])+          EPEL _n -> ["Everything", showArch arch]+          EPELNext _n -> ["Everything", showArch arch]+          Fedora _ -> ["Everything", showArch arch] ++ (if arch == Source then ["tree"] else ["os" | repo /= "updates"])+          Rawhide -> ["Everything", showArch arch, if arch == Source then "tree" else "os"]+  in (reponame, (url, path))+-- koji+repoConfigArgs (RepoSource True _chan _mirror) arch release (repo,url) =+  let (compose,path) =+        case release of+          Rawhide -> (["repos", show release, "latest"],"")+          _ -> (["repos", show release ++ "-build/latest"],"")+      reponame = repo ++ "-" ++ show release ++ "-build" +++                 if arch == X86_64 then "" else "-" ++ showArch arch+  in (reponame, (url +//+ compose, [path, showArch arch, ""]))+-- repoConfigArgs url (RepoCentosStream chan) arch release repo =+--   let (compose,path) = (["composes", channel chan, "latest-CentOS-Stream", "compose"], repo)+--       reponame = repo ++ "-Centos-" ++ show release ++ "-Stream" ++ "-" ++ show chan ++ if arch == X86_64 then "" else "-" ++ showArch arch+--   in (reponame, (url +//+ compose, [path, showArch arch, "os/"]))++renderRepoConfig :: (String, URL) -> [String]+renderRepoConfig (name, url) =+  ["--repofrompath", name ++ "," ++ renderUrl url, "--repo", name]++showRelease :: Bool -> Verbosity -> Bool -> RepoSource -> Release -> Arch+            -> IO [(String, URL)]+showRelease debug verbose warn reposource@(RepoSource koji _chan _mirror) release arch = do+  mgr <- httpManager+  (url,path) <- getURL debug mgr reposource release+  let urlpath = url +//+ path+  when debug $ putStrLn $ renderUrl urlpath+  repos <-+    case release of+      -- RepoKoji -> ["koji-fedora"]+      Centos n -> return [("BaseOS",urlpath), ("AppStream",url), (if n >= 9 then "CRB" else "PowerTools",url)]+      ELN -> return [("BaseOS",urlpath), ("AppStream",urlpath), ("CRB",urlpath)]+      Rawhide -> return [("development", urlpath)]+      Fedora n -> do+        pending <- pendingFedoraRelease n+        return $+          if pending+          then [("development", urlpath)]+          else [("releases", urlpath),+                ("updates", url +//+ ["updates",show n])]+      EPEL _n -> return [("epel",urlpath)]+      EPELNext _n -> return [("epelnext",urlpath)]+  forM repos $ \repourl -> do+    let (reponame,(url',path')) = repoConfigArgs reposource arch release repourl+        baserepo = url' +//+ path'+    when debug $ do+      putStrLn $ "url" +-+ renderUrl url'+      putStrLn $ renderUrl baserepo+    ok <- httpExists mgr $ trailingSlash $ renderUrl baserepo+    if ok+      then do+      unless (verbose == Quiet) $ do+        mtime <- do+          let composeinfo =+                if koji+                then url' +//+ ["repo.json"]+                else+                  case release of+                    Centos _ -> url' +//+ ["COMPOSE_ID"] -- ["metadata","composeinfo.json"]+                    ELN -> url' +//+ ["metadata","composeinfo.json"]+                    EPEL _ -> url' +//+ ["Everything", "state"]+                    EPELNext _ -> url' +//+ ["Everything", "state"]+                    Fedora _ -> url' +//++                                if "updates" `L.isSuffixOf` reponame+                                then ["Everything", "state"]+                                else ["COMPOSE_ID"]+                    Rawhide -> url' +//+ ["COMPOSE_ID"]+          when debug $ putStrLn $ renderUrl composeinfo+          exists <- httpExists mgr (renderUrl composeinfo)+          if exists+            then httpLastModified mgr (renderUrl composeinfo)+            else return Nothing+        whenJust mtime $ \utc -> do+          date <- utcToLocalZonedTime utc+          (if warn then warning else putStrLn) $ show date ++ " <" ++ renderUrl url' ++ ">"+      return (reponame, url' +//+ path')+      else+        error' $ renderUrl baserepo ++ " not found"++downloadServer :: String+downloadServer = "https://download.fedoraproject.org/pub"++fedoraTop :: [String]+fedoraTop = ["fedora", "linux"]++epelTop :: [String]+epelTop = ["epel"]++getURL :: Bool -> Manager -> RepoSource -> Release -> IO (URL,[String])+getURL debug mgr reposource@(RepoSource koji chan _mirror) release =+  case release of+    Centos 9 ->+      let url = URL $+            if koji+            then "https://odcs.stream.centos.org"+            else "https://mirror.stream.centos.org/9-stream/"+      in return (url,[])+    Centos 8 ->+      return (URL "http://mirror.centos.org/centos/8-stream/", [])+    Centos _ -> error' "old Centos is not supported yet"+    ELN ->+      return (URL "https://odcs.fedoraproject.org/composes", [channel chan, "latest-Fedora-ELN", "compose"])+    -- FIXME hardcoded+    Fedora n | n < 36 ->+               return+               (URL "https://archives.fedoraproject.org/pub/archive/fedora/linux/releases", [show n])+    Rawhide -> getFedoraServer debug mgr reposource fedoraTop ["development", "rawhide"]+    Fedora n -> do+      pending <- pendingFedoraRelease n+      getFedoraServer debug mgr reposource fedoraTop+        [if pending then "development" else "releases", show n]+    EPEL n -> getFedoraServer debug mgr reposource epelTop [show n]+    EPELNext n -> getFedoraServer debug mgr reposource (epelTop ++ ["next"]) [show n]++pendingFedoraRelease :: Natural -> IO Bool+pendingFedoraRelease n = do+  pending <- mapMaybe (lookupKey "branch") <$> getCachedJSONQuery "fedora-bodhi-releases-pending" "fedora-bodhi-releases-pending" (bodhiReleases (makeKey "state" "pending")) 1000+  return $ show (Fedora n) `elem` pending++getFedoraServer :: Bool -> Manager -> RepoSource -> [String] -> [String]+                -> IO (URL,[String])+getFedoraServer debug mgr (RepoSource koji _ mirror) top path =+  if koji+  then return (URL "https://kojipkgs.fedoraproject.org",[])+  else+    case mirror of+      DownloadFpo -> do+        let url = URL downloadServer +//+ top ++ path+            rurl = renderUrl url+        redir <- httpRedirect mgr rurl+        case redir of+          Nothing -> do+            warning $ "no redirect for" +-+ rurl+            return (URL downloadServer +//+ top,path)+          Just actual -> do+            when debug $ do+              warning rurl+              warning $ "redirected to" +-+ show actual+            return (URL $ removeSubpath path $ B.unpack actual, path)+      -- FIXME how to handle any path+      Mirror serv -> return (URL serv,path)+      DlFpo -> return (URL "https://dl.fedoraproject.org/pub" +//+ top, path)

+ src/Types.hs view

@@ -0,0 +1,107 @@+{-# LANGUAGE OverloadedStrings #-}++module Types (+  Arch(..),+  readArch,+  showArch,+  Mirror(..),+  Natural,+  RepoSource(..),+  CentosChannel(..),+  channel,+  Verbosity(..),+  Release(..),+  readRelease+  ) where++import Data.Char (isDigit)+import Data.List.Extra+import Numeric.Natural++--import Distribution.Fedora.Repoquery++data Verbosity = Quiet | Normal | Verbose+  deriving Eq++data Arch = Source+          | X86_64+          | AARCH64+          | ARMV7HL+          | S390X+          | PPC64LE+          | I386+  deriving Eq++readArch :: String -> Either String Arch+readArch s =+  case lower s of+    "source" -> Right Source+    "x86_64" -> Right X86_64+    "aarch64" -> Right AARCH64+    "armv7hl" -> Right ARMV7HL+    "s390x" -> Right S390X+    "ppc64le" -> Right PPC64LE+    "i386" -> Right I386+    _ -> Left $ "unknown arch: " ++ s++showArch :: Arch -> String+showArch Source = "source"+showArch X86_64 = "x86_64"+showArch AARCH64 = "aarch64"+showArch ARMV7HL = "armv7hl"+showArch S390X = "s390x"+showArch PPC64LE = "ppc64le"+showArch I386 = "i386"++data Mirror = DownloadFpo | DlFpo | Mirror String+  deriving Eq++-- True for koji+data RepoSource = RepoSource Bool CentosChannel Mirror+  deriving Eq++data CentosChannel = CentosDevel | CentosTest | CentosProd+  deriving Eq++channel :: CentosChannel -> String+channel CentosDevel = "development"+channel CentosTest = "test"+channel CentosProd = "production"++instance Show CentosChannel where+  show CentosDevel = "devel"+  show CentosTest = "test"+  show CentosProd = "prod"++data Release = EPEL Natural | EPELNext Natural | Centos Natural | Fedora Natural | ELN | Rawhide+  deriving (Eq, Ord)++-- | Read a Release name, otherwise return an error message+eitherRelease :: String -> Either String Release+eitherRelease "rawhide" = Right Rawhide+-- FIXME add proper parsing:+eitherRelease "epel8-next" = Right $ EPELNext 8+eitherRelease "epel9-next" = Right $ EPELNext 9+eitherRelease ('e':'p':'e':'l':n) | all isDigit n = let br = EPEL (read n) in Right br+eitherRelease ('e':'l':n) | all isDigit n = let r = read n in Right (EPEL r)+eitherRelease ('c':n) | all isDigit n = let r = read n in Right (Centos r)+eitherRelease ('C':n) | all isDigit n = let r = read n in Right (Centos r)+eitherRelease "eln" = Right ELN+eitherRelease ('f':ns) | all isDigit ns = let r = read ns in Right (Fedora r)+eitherRelease ns | all isDigit ns = let r = read ns in Right (Fedora r)+eitherRelease cs = Left $ cs ++ " is not a known os release"++-- | Read a Fedora Release name+readRelease :: String -> Maybe Release+readRelease bs =+  case eitherRelease bs of+    Left _ -> Nothing+    Right br -> Just br++instance Show Release where+  show Rawhide = "rawhide"+  show (Fedora n) = "f" ++ show n+  show (EPEL n) = (if n <= 6 then "el" else "epel") ++ show n+  show (EPELNext n) = "epel" ++ show n ++ "-next"+  show ELN = "eln"+  show (Centos n) = 'c' : show n ++ "s"

+ src/URL.hs view

@@ -0,0 +1,52 @@+{-# LANGUAGE CPP #-}++module URL (+  (+//+),+  URL(..),+  renderUrl,+  removeSubpath+) where++import Data.List.Extra (dropSuffix)++#if MIN_VERSION_http_directory(0,1,9)+import Network.HTTP.Directory((+/+))+#endif++newtype URL = URL String+  deriving Eq++renderUrl :: URL -> String+renderUrl (URL url) = url++foldSlash :: [String] -> String+foldSlash = foldr (+/+) ""++infixr 5 +//++(+//+) :: URL -> [String] -> URL+(URL base) +//+ rel =+  URL $ base +/+ foldSlash rel++-- piecesToPath :: [String] -> String+-- piecesToPath =++-- unsafeURI :: T.Text -> URI+-- unsafeURI u =+--   case mkURI u of+--     Nothing -> error $ "failed to parse url: " ++ show u+--     Just uri -> uri++#if !MIN_VERSION_http_directory(0,1,9)+infixr 5 +/++(+/+) :: String -> String -> String+"" +/+ s = s+s +/+ "" = s+s +/+ t | last s == '/' = init s +/+ t+        | head t == '/' = s +/+ tail t+s +/+ t = s ++ "/" ++ t+#endif++removeSubpath :: [String] -> String -> String+removeSubpath path url =+  let url' = (if last url == '/' then init else id) url+  in dropSuffix (foldSlash path) url'

+ test/tests.hs view

@@ -0,0 +1,31 @@+import Control.Monad (unless)+import SimpleCmd++fdrq :: [String] -> IO ()+fdrq args = do+  putStrLn ""+  putStrLn $ "# " ++ head args+  let debug = False+  (ok, out, err) <- cmdFull "fdrq" (["-d" | debug] ++ args) ""+  if null err+    then if null out+         then error' "no output"+         else unless (length args == 1) $ error' "stderr empty"+    else putStrLn err+  putStrLn out+  unless ok $ error' "failed"++tests :: [[String]]+tests =+  [["rawhide", "coreutils"]+  ,["37", "fontconfig"]+  ,["eln", "ibus"]+  ,["epel9", "ghc"]+  ,["c9", "kernel"]+  ,["c8", "pandoc"]+  ]++main :: IO ()+main = do+  mapM_ fdrq tests+  putStrLn $ show (length tests) ++ " tests ran"