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digitalmars.D - rdmd problem

reply Comrad <comrad.karlovich gmail.com> writes:
I have a strange problem with rdmd:

 cat test.d



import std.stdio;
void main()
{
     writeln("Hello, world with automated script running!");
}

--------------------
This hangs, but if I remove compile options it does work. Overall 
it doesn't work with any compiler options.


 dmd --version


DMD64 D Compiler v2.085.0
Copyright (C) 1999-2019 by The D Language Foundation, All Rights 
Reserved written by Walter Bright


 lsb_release -a


No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 14.04.5 LTS
Release:        14.04
Codename:       trusty


 gcc --version


gcc (Ubuntu 4.9.4-2ubuntu1~14.04.1) 4.9.4
Copyright (C) 2015 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  
There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A 
PARTICULAR PURPOSE.
Apr 01 2019
next sibling parent reply Seb <seb wilzba.ch> writes:
On Monday, 1 April 2019 at 11:10:06 UTC, Comrad wrote:

 I have a strange problem with rdmd:

 cat test.d



 import std.stdio;
 void main()
 {
     writeln("Hello, world with automated script running!");
 }

 --------------------
 This hangs, but if I remove compile options it does work. 
 Overall it doesn't work with any compiler options.


 dmd --version


 DMD64 D Compiler v2.085.0
 Copyright (C) 1999-2019 by The D Language Foundation, All 
 Rights Reserved written by Walter Bright


 lsb_release -a


 No LSB modules are available.
 Distributor ID: Ubuntu
 Description:    Ubuntu 14.04.5 LTS
 Release:        14.04
 Codename:       trusty


 gcc --version


 gcc (Ubuntu 4.9.4-2ubuntu1~14.04.1) 4.9.4
 Copyright (C) 2015 Free Software Foundation, Inc.
 This is free software; see the source for copying conditions.  
 There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A 
 PARTICULAR PURPOSE.


Shebang only supports one argument on your OS.
See e.g. 
https://unix.stackexchange.com/questions/63979/shebang-line-with-usr-bin-env-command-argument-fails-on-linux

Please use the "Learn" forum the next time.
Apr 01 2019
parent Seb <seb wilzba.ch> writes:
On Monday, 1 April 2019 at 11:23:23 UTC, Seb wrote:

 On Monday, 1 April 2019 at 11:10:06 UTC, Comrad wrote:

 [...]


 Shebang only supports one argument on your OS.
 See e.g. 
 https://unix.stackexchange.com/questions/63979/shebang-line-with-usr-bin-env-command-argument-fails-on-linux

 Please use the "Learn" forum the next time.


To extend on this: as this is a well-known limitation, rdmd has 
the --shebang switch that can be used to indicate to rdmd to 
split the arguments itself.
Apr 01 2019
prev sibling next sibling parent reply Andre Pany <andre s-e-a-p.de> writes:
On Monday, 1 April 2019 at 11:10:06 UTC, Comrad wrote:

 I have a strange problem with rdmd:

 cat test.d



 import std.stdio;
 void main()
 {
     writeln("Hello, world with automated script running!");
 }

 --------------------
 This hangs, but if I remove compile options it does work. 
 Overall it doesn't work with any compiler options.


 dmd --version


 DMD64 D Compiler v2.085.0
 Copyright (C) 1999-2019 by The D Language Foundation, All 
 Rights Reserved written by Walter Bright


 lsb_release -a


 No LSB modules are available.
 Distributor ID: Ubuntu
 Description:    Ubuntu 14.04.5 LTS
 Release:        14.04
 Codename:       trusty


 gcc --version


 gcc (Ubuntu 4.9.4-2ubuntu1~14.04.1) 4.9.4
 Copyright (C) 2015 Free Software Foundation, Inc.
 This is free software; see the source for copying conditions.  
 There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A 
 PARTICULAR PURPOSE.


I am not sure wheter compiler arguments works at the shebang 
line. If it works there might be the issue, that the file is 
passed first to rdmd and then the compiler argument. Arguments 
after the file name are handled as application arguments and 
passed to the application.

What definitely works is using dub and single package file
https://dub.pm/advanced_usage
You can define the versions in the json/sdl section.

Kind regards
Andre
Apr 01 2019
next sibling parent reply Andrei Alexandrescu <SeeWebsiteForEmail erdani.org> writes:
On 4/1/19 7:23 AM, Andre Pany wrote:

 I am not sure wheter compiler arguments works at the shebang line.


Yah, that's the problem. I added the option --shebang 
(https://dlang.org/rdmd.html) for that reason, OP can you please try that?
Apr 01 2019
parent reply Comrad <comrad.karlovich gmail.com> writes:
On Monday, 1 April 2019 at 18:27:41 UTC, Andrei Alexandrescu 
wrote:

 On 4/1/19 7:23 AM, Andre Pany wrote:

 I am not sure wheter compiler arguments works at the shebang 
 line.


 Yah, that's the problem. I added the option --shebang 
 (https://dlang.org/rdmd.html) for that reason, OP can you 
 please try that?


So...
I was able finally to make it work:

 cat test.d



import std.stdio;
void main()
{
     writeln("Hello, world with automated script running!");
}
------------------------------------

This does work. But!!! The documentation have to be changed, 
because the recommended way to start the script is through `env` 
and it doesn't help at all.
Maybe I'm stupid, but it took for me some time to understand such 
an obvious (like it appeared to be later) thing.
Apr 05 2019
parent Andrei Alexandrescu <SeeWebsiteForEmail erdani.org> writes:
On 4/5/19 8:20 AM, Comrad wrote:

 This does work. But!!! The documentation have to be changed, because the 
 recommended way to start the script is through `env` and it doesn't help 
 at all.


Yes, these are conflicting. Can you please make the documentation change?
Apr 05 2019
prev sibling parent reply Comrad <comrad.karlovich gmail.com> writes:
On Monday, 1 April 2019 at 11:23:43 UTC, Andre Pany wrote:

 On Monday, 1 April 2019 at 11:10:06 UTC, Comrad wrote:

 I have a strange problem with rdmd:

 cat test.d



 import std.stdio;
 void main()
 {
     writeln("Hello, world with automated script running!");
 }

 --------------------
 This hangs, but if I remove compile options it does work. 
 Overall it doesn't work with any compiler options.


 dmd --version


 DMD64 D Compiler v2.085.0
 Copyright (C) 1999-2019 by The D Language Foundation, All 
 Rights Reserved written by Walter Bright


 lsb_release -a


 No LSB modules are available.
 Distributor ID: Ubuntu
 Description:    Ubuntu 14.04.5 LTS
 Release:        14.04
 Codename:       trusty


 gcc --version


 gcc (Ubuntu 4.9.4-2ubuntu1~14.04.1) 4.9.4
 Copyright (C) 2015 Free Software Foundation, Inc.
 This is free software; see the source for copying conditions.  
 There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A 
 PARTICULAR PURPOSE.


 I am not sure wheter compiler arguments works at the shebang 
 line. If it works there might be the issue, that the file is 
 passed first to rdmd and then the compiler argument. Arguments 
 after the file name are handled as application arguments and 
 passed to the application.

 What definitely works is using dub and single package file
 https://dub.pm/advanced_usage
 You can define the versions in the json/sdl section.

 Kind regards
 Andre


Sorry,
the documentation doesn't allow me to understand easily, how to 
use it without additional pain. The link you gave doesn't 
describe a clear method for those, who never used dub before.
Anyway... I was able to solve my problem in a convenient for me 


Thank you anyhow!
Apr 05 2019
parent reply Andre Pany <andre s-e-a-p.de> writes:
On Friday, 5 April 2019 at 12:27:25 UTC, Comrad wrote:

 On Monday, 1 April 2019 at 11:23:43 UTC, Andre Pany wrote:

 On Monday, 1 April 2019 at 11:10:06 UTC, Comrad wrote:

 [...]


 I am not sure wheter compiler arguments works at the shebang 
 line. If it works there might be the issue, that the file is 
 passed first to rdmd and then the compiler argument. Arguments 
 after the file name are handled as application arguments and 
 passed to the application.

 What definitely works is using dub and single package file
 https://dub.pm/advanced_usage
 You can define the versions in the json/sdl section.

 Kind regards
 Andre


 Sorry,
 the documentation doesn't allow me to understand easily, how to 
 use it without additional pain. The link you gave doesn't 
 describe a clear method for those, who never used dub before.
 Anyway... I was able to solve my problem in a convenient for me 


 Thank you anyhow!


No problem:)

Create a file sample.d with following content


/+ dub.sdl:
   name "sample"
   versions "test"
+/
void main() {
	import std.stdio : writeln;
	writeln("Hello, World!");
}

You can start it with "dub sample" or if you add the executable 
flag with "./sample.d".

With recent dub version you can name the file even without the .d 
extension and just start it with "./sample".

Kind regards
Andre
Apr 05 2019
parent Seb <seb wilzba.ch> writes:
On Friday, 5 April 2019 at 12:46:18 UTC, Andre Pany wrote:

 On Friday, 5 April 2019 at 12:27:25 UTC, Comrad wrote:

 [...]


 No problem:)

 Create a file sample.d with following content


 /+ dub.sdl:
   name "sample"
   versions "test"
 +/
 void main() {
 	import std.stdio : writeln;
 	writeln("Hello, World!");
 }

 You can start it with "dub sample" or if you add the executable 
 flag with "./sample.d".

 With recent dub version you can name the file even without the 
 .d extension and just start it with "./sample".

 Kind regards
 Andre


Also, in more recent versions of dub the "name" field got 
optional as well and will be automatically inferred if not set.
Apr 05 2019
prev sibling next sibling parent Andre Pany <andre s-e-a-p.de> writes:
On Monday, 1 April 2019 at 11:10:06 UTC, Comrad wrote:

 I have a strange problem with rdmd:

 cat test.d



 import std.stdio;
 void main()
 {
     writeln("Hello, world with automated script running!");
 }

 --------------------
 This hangs, but if I remove compile options it does work. 
 Overall it doesn't work with any compiler options.


 dmd --version


 DMD64 D Compiler v2.085.0
 Copyright (C) 1999-2019 by The D Language Foundation, All 
 Rights Reserved written by Walter Bright


 lsb_release -a


 No LSB modules are available.
 Distributor ID: Ubuntu
 Description:    Ubuntu 14.04.5 LTS
 Release:        14.04
 Codename:       trusty


 gcc --version


 gcc (Ubuntu 4.9.4-2ubuntu1~14.04.1) 4.9.4
 Copyright (C) 2015 Free Software Foundation, Inc.
 This is free software; see the source for copying conditions.  
 There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A 
 PARTICULAR PURPOSE.


I am not sure wheter compiler arguments works at the shebang 
line. If it works there might be the issue, that the file is 
passed first to rdmd and then the compiler argument. Arguments 
after the file name are handled as application arguments and 
passed to the application.

What definitely works is using dub and single package file
https://dub.pm/advanced_usage
You can define the versions in the json/sdl section.

Kind regards
Andre
Apr 01 2019
prev sibling parent Jonathan Marler <johnnymarler gmail.com> writes:
On Monday, 1 April 2019 at 11:10:06 UTC, Comrad wrote:

 I have a strange problem with rdmd:

 cat test.d



 import std.stdio;
 void main()
 {
     writeln("Hello, world with automated script running!");
 }

 --------------------
 This hangs, but if I remove compile options it does work. 
 Overall it doesn't work with any compiler options.


 dmd --version


 DMD64 D Compiler v2.085.0
 Copyright (C) 1999-2019 by The D Language Foundation, All 
 Rights Reserved written by Walter Bright


 lsb_release -a


 No LSB modules are available.
 Distributor ID: Ubuntu
 Description:    Ubuntu 14.04.5 LTS
 Release:        14.04
 Codename:       trusty


 gcc --version


 gcc (Ubuntu 4.9.4-2ubuntu1~14.04.1) 4.9.4
 Copyright (C) 2015 Free Software Foundation, Inc.
 This is free software; see the source for copying conditions.  
 There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A 
 PARTICULAR PURPOSE.


When I rewrote rdmd I read that some OS's don't support more than 
one argument on the shebang line, so I added support for "Source 
Compiler Directives".


//!version test
import std.stdio;
void main()
{
     writeln("Hello, world with automated script running!");
}


If you use rdmd quite a bit, you might want to consider switching 
to rund:

https://github.com/dragon-lang/rund

It runs about twice as fast because it only needs to run the 
compiler once instead of twice like rdmd does. I also fixed a 
fair number of bugs with rdmd when I rewrote it.  And if you find 
any issues with it, please let me know and I'll quickly make sure 
to get them fixed.
Apr 01 2019