From 30344b07bb5e7c54f1c8e4e35b6d3f34e10c37c1 Mon Sep 17 00:00:00 2001
From: Jens Petersen <juhpetersen@gmail.com>
Date: Tue, 30 Dec 2025 21:52:05 +0800
Subject: [PATCH] drop outdated etc/diskspace: use stack-clean-old instead

[skip ci]
---
 etc/diskspace/remove-old-stack-work-libs.hs | 123 --------------------
 1 file changed, 123 deletions(-)
 delete mode 100755 etc/diskspace/remove-old-stack-work-libs.hs

diff --git a/etc/diskspace/remove-old-stack-work-libs.hs b/etc/diskspace/remove-old-stack-work-libs.hs
deleted file mode 100755
index f3962257..00000000
--- a/etc/diskspace/remove-old-stack-work-libs.hs
+++ /dev/null
@@ -1,123 +0,0 @@
-#!/usr/bin/env stack
--- stack --resolver lts-19.33 script
-
--- Utility to remove old libs installed under .stack-work/ to save diskspace
-
-import Control.Monad
-import Data.List
-import System.Directory
-import System.FilePath
-import System.Environment
-import Text.Regex.TDFA
-
--- keep 2 latest builds
-keepBuilds :: Int
-keepBuilds = 2
-
-main :: IO ()
-main = do
-  args <- getArgs
-  case args of
-    [stream] -> do
-      home <- getHomeDirectory
-      withCurrentDirectory (home </> "stackage/automated/work" </> stream </> "unpack-dir") $ do
-        cleanStackWorkInstall
-        putStrLn ""
-        cleanStackWorkPackages
-    _ -> error "arg should be 'lts-XX' or 'nightly'"
-
-  -- navigates to: .stack-work/install/x86_64-linux*/*/*/lib/x86_64-linux-ghc-*
-cleanStackWorkInstall :: IO ()
-cleanStackWorkInstall =
-  withCurrentDirectory ".stack-work/install"
-  $ withOneDirectory_ -- "x86_64-linux*"
-  $ withOneDirectory_ -- hash
-  $ withOneDirectory $ \ghcver ->
-  withCurrentDirectory ("lib" </> "x86_64-linux-ghc-" ++ ghcver) $ do
-  getCurrentDirectory >>= putStrLn
-  files <- sort <$> listDirectory "."
-  let (dynlibs,libdirs) = partition (".so" `isExtensionOf`) files
-      pkglibdirs = groupBy samePkgLibDir libdirs
-      pkgdynlibs = groupBy samePkgDynLib dynlibs
-  mapM_ (removeOlder removeDirectoryRecursive) pkglibdirs
-  mapM_ (removeOlder removeFile) pkgdynlibs
-  where
-    samePkgLibDir l1 l2 = pkgDirName l1 == pkgDirName l2
-      where
-        pkgDirName p =
-          if length p < 25
-          then error $ p ++ " too short to be in correct name-version-hash format"
-          else extractNameInternal p
-
-    extractNameInternal :: String -> String
-    extractNameInternal p =
-      let (name,match',internal) = p =~ "-[0-9.]+-[0-9A-Za-z]{19,22}" :: (String, String, String)
-      in if null match' || null name then error $ p ++ " not in correct name-version-hash format"
-         else name ++ internal
-
-    samePkgDynLib d1 d2 = pkgDynName d1 == pkgDynName d2
-      where
-        pkgDynName p =
-          if length p < 42
-          then error $ p ++ " too short to be libHSname-version-hash-ghc*.so format"
-          else (extractNameInternal . removeDashSegment) p
-
-    removeDashSegment = dropWhileEnd (/= '-')
-
-
-removeOlder :: (FilePath -> IO ()) -> [FilePath] -> IO ()
-removeOlder remover files = do
-  oldfiles <- drop keepBuilds . reverse <$> sortByAge files
-  mapM_ remover oldfiles
-
-sortByAge :: [FilePath] -> IO [FilePath]
-sortByAge files = do
-  timestamps <- mapM getModificationTime files
-  let fileTimes = zip files timestamps
-  return $ map fst $ sortBy compareSnd fileTimes
-  where
-    compareSnd (_,t1) (_,t2) = compare t1 t2
-
--- navigates to:
--- unpacked/*/.stack-work/dist/x86_64-linux-tinfo6/Cabal-3.8.1.0/build/
-cleanStackWorkPackages :: IO ()
-cleanStackWorkPackages =
-  withCurrentDirectory "unpacked" $ do
-  getCurrentDirectory >>= putStrLn
-  pkgs <- listDirectory "."
-  forM_ pkgs $ \pkg ->
-    withCurrentDirectory (pkg </> ".stack-work/dist") $ do
-    -- [(dyn,stat)]
-    libs <- do
-      platforms <- listDirectory "." -- "x86_64-linux-tinfo6*"
-      forM platforms $ \pl ->
-        withCurrentDirectory pl $
-        withOneDirectory -- "Cabal-*"
-        $ \cbl ->
-        withCurrentDirectory "build" $ do
-        ls <- sort <$> listDirectory "."
-        files <- filterM doesFileExist ls
-        let (dynlibs,others) = partition (".so" `isExtensionOf`) files
-            statlibs = filter (".a" `isExtensionOf`) others
-        let dir = pl </> cbl </> "build"
-        return (map (dir </>) dynlibs, map (dir </>) statlibs)
-    removeOlder removeFile $ concatMap fst libs
-    removeOlder removeFile $ concatMap snd libs
-
-withOneDirectory_ :: IO a -> IO a
-withOneDirectory_ act = do
-  ls <- listDirectory "."
-  case ls of
-    [l] -> withCurrentDirectory l act
-    _ -> do
-      cwd <- getCurrentDirectory
-      error $ show (length ls) ++ " directories found in " ++ cwd ++ ": " ++ unwords ls
-
-withOneDirectory :: (FilePath -> IO a) -> IO a
-withOneDirectory act = do
-  ls <- listDirectory "."
-  case ls of
-    [l] -> withCurrentDirectory l $ act l
-    _ -> do
-      cwd <- getCurrentDirectory
-      error $ show (length ls) ++ " directories found in " ++ cwd ++ ": " ++ unwords ls