Passing code via stdin to Nim stopped working [regression Nim 0.19+]

[kaushalmodi]

In Nim 0.18.0 and earlier, it was possible to pass it code via stdin. But the same method of passing code via stdin doesn't work in Nim 0.19.0+.

Example

echo echo NimVersion | nim -r c -  

Current Output

In Nim 0.19.0+, we get this error:

command line(1, 2) Error: invalid command line option: '-'

Expected Output

Should print the value of NimVersion.

Additional Information

Ref: code-golf/code-golf#86 (comment)

[kaushalmodi]

@Araq This issue is still not fixed for me.

> echo echo NimVersion | nim -r c -
Hint: used config file '/home/kmodi/usr_local/apps/6/nim/devel/config/nim.cfg' [Conf]
Hint: used config file '/home/kmodi/usr_local/apps/6/nim/devel/config/config.nims' [Conf]
Hint: system [Processing]
Hint: widestrs [Processing]
Hint: io [Processing]
Hint: stdinfile [Processing]
CC: stdinfile
Hint:  [Link]
collect2: fatal error: can't open nm output: Success
compilation terminated.
Error: execution of an external program failed: 'gcc   -o /home/kmodi/sandbox/nim/bug_reports/nim_doc__wrong_file_name_in_idx/-  /tmp/kmodi/.cache/nim/-_d/stdlib_io.c.o /tmp/kmodi/.cache/nim/-_d/stdlib_system.c.o /tmp/kmodi/.cache/nim/-_d/stdinfile.c.o  -lm   -ldl'

Looks like now the echo echo NimVersion | nim -r c - command creates a binary named - literally!

.rwxr-xr-x 85k kmodi 24 May 13:14 -*

[Araq]

Works on Windows and afaict it never worked better, so it's not a regression anymore, shrug.

[Clyybber]

You can always use /dev/stdin instead of -.
I also can't remember - working.
This should still be fixed though..

[kaushalmodi]

@timotheecour Thanks for your fix in 1f7c907

Now it works!!

> echo echo NimVersion | nim -r --hints:off c -
1.1.1