#10205: On Windows ghc-pkg always reports cache out of date -------------------------------------+------------------------------------- Reporter: hgolden | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: ghc-pkg | Version: 7.10.1 Keywords: | Operating System: Windows Architecture: x86 | Type of failure: Incorrect result Test Case: | at runtime Blocking: | Blocked By: Differential Revisions: | Related Tickets: -------------------------------------+------------------------------------- When I ran {{{ghc-pkg list}}} on Windows, it reported that the global and user caches were out of date. As instructed, I recached both caches. Despite this, I continued to get the same error message. It appears that the timestamp on the package.conf.d directory is always a few milliseconds later than the timestamp of the package cache, even after recaching, as shown by the log excerpt below. Original error: {{{ C:\Users\hgolden\AppData\Roaming>ghc-pkg check WARNING: cache is out of date: C:\Users\hgolden\AppData\Roaming\ghc\i386-mingw32-7.10.1\package.conf.d\package.cache ghc will see an old view of this package db. Use 'ghc-pkg recache' to fix. WARNING: cache is out of date: C:/Program Files/MinGHC-7.10.1/ghc-7.10.1\lib\package.conf.d\package.cache ghc will see an old view of this package db. Use 'ghc-pkg recache' to fix. [snip...] }}} Checking timestamps: {{{ C:\Users\hgolden\AppData\Roaming>ghc-pkg -v2 list Timestamp 2015-03-27 21:18:29.5247984 UTC for C:\Users\hgolden\AppData\Roaming\ghc\i386-mingw32-7.10.1\package.conf.d\pa ckage.cache Timestamp 2015-03-27 21:18:29.5277984 UTC for C:\Users\hgolden\AppData\Roaming\ghc\i386-mingw32-7.10.1\package.conf.d (N EWER than cache) WARNING: cache is out of date: C:\Users\hgolden\AppData\Roaming\ghc\i386-mingw32-7.10.1\package.conf.d\package.cache ghc will see an old view of this package db. Use 'ghc-pkg recache' to fix. [snip...] Timestamp 2015-03-27 21:15:48.6285984 UTC for C:/Program Files/MinGHC-7.10.1/ghc-7.10.1\lib\package.conf.d\package.cache Timestamp 2015-03-27 21:15:48.6835984 UTC for C:/Program Files/MinGHC-7.10.1/ghc-7.10.1\lib\package.conf.d (NEWER than c ache) WARNING: cache is out of date: C:/Program Files/MinGHC-7.10.1/ghc-7.10.1\lib\package.conf.d\package.cache ghc will see an old view of this package db. Use 'ghc-pkg recache' to fix. [snip...] }}} Recaching as instructed: {{{ C:\Users\hgolden\AppData\Roaming>ghc-pkg -v2 recache --user [snip...] modifying: Just "C:\\Users\\hgolden\\AppData\\Roaming\\ghc\\i386-mingw32-7.10.1\\package.conf.d" flag db stack: ["C:\\Users\\hgolden\\AppData\\Roaming\\ghc\\i386-mingw32-7.10.1\\package.conf.d"] writing cache C:\Users\hgolden\AppData\Roaming\ghc\i386-mingw32-7.10.1\package.conf.d\package.cache C:\Users\hgolden\AppData\Roaming>ghc-pkg -v2 recache --global [snip...] modifying: Just "C:/Program Files/MinGHC-7.10.1/ghc-7.10.1\\lib\\package.conf.d" flag db stack: ["C:/Program Files/MinGHC-7.10.1/ghc-7.10.1\\lib\\package.conf.d"] writing cache C:/Program Files/MinGHC-7.10.1/ghc-7.10.1\lib\package.conf.d\package.cache }}} Looking at timestamps after recaching: {{{ C:\Users\hgolden\AppData\Roaming>ghc-pkg -v2 list Timestamp 2015-03-27 21:21:50.3341984 UTC for C:\Users\hgolden\AppData\Roaming\ghc\i386-mingw32-7.10.1\package.conf.d\pa ckage.cache Timestamp 2015-03-27 21:21:50.3371984 UTC for C:\Users\hgolden\AppData\Roaming\ghc\i386-mingw32-7.10.1\package.conf.d (N EWER than cache) WARNING: cache is out of date: C:\Users\hgolden\AppData\Roaming\ghc\i386-mingw32-7.10.1\package.conf.d\package.cache ghc will see an old view of this package db. Use 'ghc-pkg recache' to fix. [snip...] Timestamp 2015-03-27 21:23:05.4329984 UTC for C:/Program Files/MinGHC-7.10.1/ghc-7.10.1\lib\package.conf.d\package.cache Timestamp 2015-03-27 21:23:05.4359984 UTC for C:/Program Files/MinGHC-7.10.1/ghc-7.10.1\lib\package.conf.d (NEWER than c ache) WARNING: cache is out of date: C:/Program Files/MinGHC-7.10.1/ghc-7.10.1\lib\package.conf.d\package.cache ghc will see an old view of this package db. Use 'ghc-pkg recache' to fix. C:\Users\hgolden\AppData\Roaming> }}} Timestamps have changed, but each directory's timestamp is still a few milliseconds after each cache file's timestamp. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10205 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler