InvalidAbsDir "./stack-setupXXXXX" from Path.IO.listDirectory #1017
Description
When I execute stack setup I'm getting this error:
$ stack setup
InvalidAbsDir "./stack-setup31658"
This is thrown by Path.parseAbsDir in the path package (see line 79). I've modified Path.IO.listDirectory to print the filepath it is calling parseAbsDir on, so that the file path is printed each time and also so that I can get the stack trace up to that point.
This is the printed file paths and the stack trace:
"/home/rob/.stack/programs/i386-linux/ghc-7.10.2.tar.xz"
"/home/rob/.stack/programs/i386-linux/.."
*** Exception (reporting due to +RTS -xc): (THUNK_1_0), stack trace:
Path.CAF
--> evaluated by: Path.IO.listDirectory.\,
called from Path.IO.listDirectory,
called from Stack.Setup.listInstalled,
called from Stack.Setup.ensureGHC,
called from Stack.Types.StackT.>>=,
called from Main.setupCmd.\,
called from Main.withUserFileLock.\,
called from Main.withUserFileLock,
called from Main.setupCmd,
called from Main.main.\,
called from Data.Attoparsec.Args.withInterpreterArgs,
called from Main.main
I've raised this question with @chrisdone who believes that stack should canonicalize paths before calling parseAbsDir.