hledger-web HTTP 500 when using -f - (journal read from standard input)

[lestephane]

this works

$ ~/.local/bin/hledger-web -f test.journal

this doesn't

$ ~/.local/bin/hledger-web -f - < test.journal
11/Feb/2020:14:43:35 +0200 [Info#yesod-core] Application launched @(yesod-core-1.6.16.1-Y4Wlt7bfWTEbaIiws0fJN:Yesod.Core.Dispatch src/Yesod/Core/Dispatch.hs:163:11)
Serving web UI and API on 127.0.0.1:5000 with base url http://127.0.0.1:5000
This server will exit after 2m with no browser windows open (or press ctrl-c)
Opening web browser...
11/Feb/2020:14:43:35 +0200 [Error#yesod-core] <stdin>: hGetBuffering: illegal operation (handle is closed) @(yesod-core-1.6.16.1-Y4Wlt7bfWTEbaIiws0fJN:Yesod.Core.Class.Yesod src/Yesod/Core/Class/Yesod.hs:688:5)
11/Feb/2020:14:43:35 +0200 [Error#yesod-core] Error handler errored out: InternalError "<stdin>: hGetBuffering: illegal operation (handle is closed)" @(yesod-core-1.6.16.1-Y4Wlt7bfWTEbaIiws0fJN:Yesod.Core.Internal.Run src/Yesod/Core/Internal/Run.hs:210:21)
127.0.0.1 - - [11/Feb/2020:14:43:35 +0200] "GET / HTTP/1.1" 500 21 "" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:72.0) Gecko/20100101 Firefox/72.0"
127.0.0.1 - - [11/Feb/2020:14:43:35 +0200] "GET /favicon.ico HTTP/1.1" 200 - "" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:72.0) Gecko/20100101 Firefox/72.0"

[simonmichael]

Thanks for the report. See the earlier #950 and #978. Could you perhaps investigate and find out what happened with #978 ?

[simonmichael]

PS documented at https://hledger.org/hledger-web.html#bugs, but if we don't fix this it should at least give a clear error at the start.

[simonmichael]

This was fixed.