File: FileTime.hs

package info (click to toggle)
ghc 9.0.2-4
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 177,780 kB
  • sloc: haskell: 494,441; ansic: 70,262; javascript: 9,423; sh: 8,537; python: 2,646; asm: 1,725; makefile: 1,333; xml: 196; cpp: 167; perl: 143; ruby: 84; lisp: 7
file content (57 lines) | stat: -rw-r--r-- 1,679 bytes parent folder | download | duplicates (5)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
{-# LANGUAGE CPP #-}
module FileTime where
#include "util.inl"
import Data.Time.Clock (addUTCTime, getCurrentTime)

main :: TestEnv -> IO ()
main _t = do
  now <- getCurrentTime
  let someTimeAgo  = addUTCTime (-3600) now
      someTimeAgo' = addUTCTime (-7200) now

  T(expectIOErrorType) () isDoesNotExistError $
    getAccessTime "nonexistent-file"
  T(expectIOErrorType) () isDoesNotExistError $
    setAccessTime "nonexistent-file" someTimeAgo
  T(expectIOErrorType) () isDoesNotExistError $
    getModificationTime "nonexistent-file"
  T(expectIOErrorType) () isDoesNotExistError $
    setModificationTime "nonexistent-file" someTimeAgo

  writeFile  "foo" ""
  for_ [ "foo", ".", "" ] $ \ file -> do
    let mtime = someTimeAgo
        atime = someTimeAgo'

    atime1 <- getAccessTime file

    setModificationTime file mtime

    atime2 <- getAccessTime file
    mtime2 <- getModificationTime file

    -- modification time should be set with at worst 1 sec resolution
    T(expectNearTime) file mtime  mtime2 1

    -- access time should not change, although it may lose some precision
    -- on POSIX systems without 'utimensat'
    T(expectNearTime) file atime1 atime2 1

    setAccessTime file atime

    atime3 <- getAccessTime file
    mtime3 <- getModificationTime file

    when setAtime $ do
      -- access time should be set with at worst 1 sec resolution
      T(expectNearTime) file atime atime3 1

    -- modification time should not change, although it may lose some precision
    -- on POSIX systems without 'utimensat'
    T(expectNearTime) file mtime2 mtime3 1

  where

    testname = "FileTime"

    setAtime = T.readArg _t testname "set-atime" True