running a command in a directory using std.process

2013-10-24 Thread Benjamin Thaut 
As far as I can tell std.process can only run commands in the working 
directory of the currently executing function. I want to execute a 
certain program inside a subdirectory on windows and can't get it to work:


myproject
 |- subdir

So my executable has myproject as working directory. And I want to 
execute dmd with subdir as working directory.

--
Kind Regards
Benjamin Thaut

Re: running a command in a directory using std.process

2013-10-24 Thread simendsjo 
On Thursday, 24 October 2013 at 06:25:40 UTC, Benjamin Thaut 
wrote:
As far as I can tell std.process can only run commands in the 
working directory of the currently executing function. I want 
to execute a certain program inside a subdirectory on windows 
and can't get it to work:


myproject
 |- subdir

So my executable has myproject as working directory. And I 
want to execute dmd with subdir as working directory.


Isn't it possible to execute a command like cd subdir  dmd?

Re: running a command in a directory using std.process

2013-10-24 Thread Timothee Cour 
+1
this is a command use case. Further,relying on shell such as  cd subdir 
foo is fragile: if it fails, we're not sure whether it's because it
couldn't cd to subdir or because of foo.

Woudl the following be as efficient?
system_in_dir(string dir, string action){
auto path=getcwd
scope(exit)
  chdir(path)
chdir(dir)
system(action)
}


On Thu, Oct 24, 2013 at 12:43 AM, Benjamin Thaut c...@benjamin-thaut.dewrote:

 Am 24.10.2013 09:06, schrieb simendsjo:

  On Thursday, 24 October 2013 at 06:25:40 UTC, Benjamin Thaut wrote:

 As far as I can tell std.process can only run commands in the working
 directory of the currently executing function. I want to execute a
 certain program inside a subdirectory on windows and can't get it to
 work:

 myproject
  |- subdir

 So my executable has myproject as working directory. And I want to
 execute dmd with subdir as working directory.


 Isn't it possible to execute a command like cd subdir  dmd?


 Thanks. That works. It still would be nice if std.process had this in its
 API.


 --
 Kind Regards
 Benjamin Thaut

Re: running a command in a directory using std.process

2013-10-24 Thread Benjamin Thaut 

Am 24.10.2013 19:03, schrieb Timothee Cour:

+1
this is a command use case. Further,relying on shell such as  cd subdir
 foo is fragile: if it fails, we're not sure whether it's because it
couldn't cd to subdir or because of foo.

Woudl the following be as efficient?
system_in_dir(string dir, string action){
auto path=getcwd
scope(exit)
   chdir(path)
chdir(dir)
system(action)
}



Well at least the windows API call CreateProcess already has a parameter 
which you can use to specify the working directory. Its just not exposed 
in the implementation of std.process. I don't know how things are on 
linux though.


Kind Regards
Benjamin Thaut