• Chris (13/13) Nov 27 2014 [Maybe this has been asked before.]
• Gary Willoughby (4/9) Nov 27 2014 dub compiles and links every file in the source folder whether
• Chris (6/15) Nov 27 2014 I compiled the exact same files. I excluded those I didn't need
• CraigDillabaugh (5/21) Nov 27 2014 When you build with dub it should print out (if I remember
• Chris (9/33) Nov 27 2014 dub says:
• CraigDillabaugh (8/42) Nov 27 2014 I am sure there is some way to get it to print out exactly what
• Chris (19/66) Nov 28 2014 Nope, --verbose doesn't tell me anything useful in this regard.
• Mike Wey (4/11) Nov 27 2014 dub builds with --debug by default.
• Kapps (3/18) Nov 28 2014 Dub builds with debug symbols by default. Using dub build -v will

"Chris" <wendlec tcd.ie> writes:

[Maybe this has been asked before.]

I usually use dub to create and build projects. I built one of 
the projects with dub and then by hand with dmd[1] passing all 
the files etc. Turned out that the executable built with dub was 
1.4 MB whereas the one built by hand was only 807 kB. Why is that?

Another thing, I've spotted a typo in dub's[2] command line help:

clean [<package>]     Removes intermetiate build files and cached 
build
                         results

It should read "intermediate" (with "d"), else it sounds like the 
Goths in Asterix :-)



[1] dmd 2.066.0
[2] DUB version 0.9.22, built on Sep 16 2014

"Gary Willoughby" <dev nomad.so> writes:

On Thursday, 27 November 2014 at 09:33:49 UTC, Chris wrote:
 I usually use dub to create and build projects. I built one of 
 the projects with dub and then by hand with dmd[1] passing all 
 the files etc. Turned out that the executable built with dub 
 was 1.4 MB whereas the one built by hand was only 807 kB. Why 
 is that?

dub compiles and links every file in the source folder whether 
it's used or not. Whereas with dmd or rdmd you only compile and 
link the files you actually use.

"Chris" <wendlec tcd.ie> writes:

On Thursday, 27 November 2014 at 12:29:03 UTC, Gary Willoughby 
wrote:
 On Thursday, 27 November 2014 at 09:33:49 UTC, Chris wrote:
 I usually use dub to create and build projects. I built one of 
 the projects with dub and then by hand with dmd[1] passing all 
 the files etc. Turned out that the executable built with dub 
 was 1.4 MB whereas the one built by hand was only 807 kB. Why 
 is that?

 dub compiles and links every file in the source folder whether 
 it's used or not. Whereas with dmd or rdmd you only compile and 
 link the files you actually use.

I compiled the exact same files. I excluded those I didn't need 
in the dub configuration like so:

"excludedSourceFiles": [...]

But dub's executable is bigger.

"CraigDillabaugh" <craig.dillabaugh gmail.com> writes:

On Thursday, 27 November 2014 at 13:56:19 UTC, Chris wrote:
 On Thursday, 27 November 2014 at 12:29:03 UTC, Gary Willoughby 
 wrote:
 On Thursday, 27 November 2014 at 09:33:49 UTC, Chris wrote:
 I usually use dub to create and build projects. I built one 
 of the projects with dub and then by hand with dmd[1] passing 
 all the files etc. Turned out that the executable built with 
 dub was 1.4 MB whereas the one built by hand was only 807 kB. 
 Why is that?

 dub compiles and links every file in the source folder whether 
 it's used or not. Whereas with dmd or rdmd you only compile 
 and link the files you actually use.

 I compiled the exact same files. I excluded those I didn't need 
 in the dub configuration like so:

 "excludedSourceFiles": [...]

 But dub's executable is bigger.

When you build with dub it should print out (if I remember 
correctly, its been a little while) the command it uses to build 
your code.  Is there any difference between that command and your 
'by hand' version?

"Chris" <wendlec tcd.ie> writes:

On Thursday, 27 November 2014 at 13:59:23 UTC, CraigDillabaugh 
wrote:
 On Thursday, 27 November 2014 at 13:56:19 UTC, Chris wrote:
 On Thursday, 27 November 2014 at 12:29:03 UTC, Gary Willoughby 
 wrote:
 On Thursday, 27 November 2014 at 09:33:49 UTC, Chris wrote:
 I usually use dub to create and build projects. I built one 
 of the projects with dub and then by hand with dmd[1] 
 passing all the files etc. Turned out that the executable 
 built with dub was 1.4 MB whereas the one built by hand was 
 only 807 kB. Why is that?

 dub compiles and links every file in the source folder 
 whether it's used or not. Whereas with dmd or rdmd you only 
 compile and link the files you actually use.

 I compiled the exact same files. I excluded those I didn't 
 need in the dub configuration like so:

 "excludedSourceFiles": [...]

 But dub's executable is bigger.

 When you build with dub it should print out (if I remember 
 correctly, its been a little while) the command it uses to 
 build your code.  Is there any difference between that command 
 and your 'by hand' version?

dub says:

Compiling using dmd...
Linking...

I have the exact same setting, I think. I don't build for release 
with either method.

dmd file1.d file2.d file3.d ...

(dub compiles the same files, no release build)

"CraigDillabaugh" <craig.dillabaugh gmail.com> writes:

On Thursday, 27 November 2014 at 14:14:50 UTC, Chris wrote:
 On Thursday, 27 November 2014 at 13:59:23 UTC, CraigDillabaugh 
 wrote:
 On Thursday, 27 November 2014 at 13:56:19 UTC, Chris wrote:
 On Thursday, 27 November 2014 at 12:29:03 UTC, Gary 
 Willoughby wrote:
 On Thursday, 27 November 2014 at 09:33:49 UTC, Chris wrote:
 I usually use dub to create and build projects. I built one 
 of the projects with dub and then by hand with dmd[1] 
 passing all the files etc. Turned out that the executable 
 built with dub was 1.4 MB whereas the one built by hand was 
 only 807 kB. Why is that?

 dub compiles and links every file in the source folder 
 whether it's used or not. Whereas with dmd or rdmd you only 
 compile and link the files you actually use.

 I compiled the exact same files. I excluded those I didn't 
 need in the dub configuration like so:

 "excludedSourceFiles": [...]

 But dub's executable is bigger.

 When you build with dub it should print out (if I remember 
 correctly, its been a little while) the command it uses to 
 build your code.  Is there any difference between that command 
 and your 'by hand' version?

 dub says:

 Compiling using dmd...
 Linking...

 I have the exact same setting, I think. I don't build for 
 release with either method.

 dmd file1.d file2.d file3.d ...

 (dub compiles the same files, no release build)

I am sure there is some way to get it to print out exactly what 
it is doing. I've done it before when trying to figure out some 
compilation issues ... unfortunately it was a while ago and the 
machine I am at now doesn't have dub (or D for that matter) 
installed.

Maybe you need to give the the dub -v (--verbose) option.  Type 
'dub help' to check - again I can't do that right here.

"Chris" <wendlec tcd.ie> writes:

On Thursday, 27 November 2014 at 17:08:00 UTC, CraigDillabaugh
wrote:
 On Thursday, 27 November 2014 at 14:14:50 UTC, Chris wrote:
 On Thursday, 27 November 2014 at 13:59:23 UTC, CraigDillabaugh 
 wrote:
 On Thursday, 27 November 2014 at 13:56:19 UTC, Chris wrote:
 On Thursday, 27 November 2014 at 12:29:03 UTC, Gary 
 Willoughby wrote:
 On Thursday, 27 November 2014 at 09:33:49 UTC, Chris wrote:
 I usually use dub to create and build projects. I built 
 one of the projects with dub and then by hand with dmd[1] 
 passing all the files etc. Turned out that the executable 
 built with dub was 1.4 MB whereas the one built by hand 
 was only 807 kB. Why is that?

 dub compiles and links every file in the source folder 
 whether it's used or not. Whereas with dmd or rdmd you only 
 compile and link the files you actually use.

 I compiled the exact same files. I excluded those I didn't 
 need in the dub configuration like so:

 "excludedSourceFiles": [...]

 But dub's executable is bigger.

 When you build with dub it should print out (if I remember 
 correctly, its been a little while) the command it uses to 
 build your code.  Is there any difference between that 
 command and your 'by hand' version?

 dub says:

 Compiling using dmd...
 Linking...

 I have the exact same setting, I think. I don't build for 
 release with either method.

 dmd file1.d file2.d file3.d ...

 (dub compiles the same files, no release build)

 I am sure there is some way to get it to print out exactly what 
 it is doing. I've done it before when trying to figure out some 
 compilation issues ... unfortunately it was a while ago and the 
 machine I am at now doesn't have dub (or D for that matter) 
 installed.

 Maybe you need to give the the dub -v (--verbose) option.  Type 
 'dub help' to check - again I can't do that right here.

Nope, --verbose doesn't tell me anything useful in this regard.
Only stuff like

Refreshing local packages (refresh existing: true)...
Looking for local package map at
/var/lib/dub/packages/local-packages.json
...

I added a lot to the project yesterday, and still, the "pure"
dmd-compiled version is 1.9 MB whereas the dub-compiled version
is 3.5 MB. There is absolutely nothing in dub.json that links to
anything else.

Now, I've just created an empty test project with

$ dub init size

The executable is 940.5 kB

Then

$ dmd source/app.d -ofother

The executable is 548.0 kB

Try it yourself.

Mike Wey <mike-wey example.com> writes:

On 11/27/2014 03:14 PM, Chris wrote:
  dub says:

 Compiling using dmd...
 Linking...

 I have the exact same setting, I think. I don't build for release with
 either method.

 dmd file1.d file2.d file3.d ...

 (dub compiles the same files, no release build)

dub builds with --debug by default.

-- 
Mike Wey

"Kapps" <opantm2+spam gmail.com> writes:

On Thursday, 27 November 2014 at 09:33:49 UTC, Chris wrote:
 [Maybe this has been asked before.]

 I usually use dub to create and build projects. I built one of 
 the projects with dub and then by hand with dmd[1] passing all 
 the files etc. Turned out that the executable built with dub 
 was 1.4 MB whereas the one built by hand was only 807 kB. Why 
 is that?

 Another thing, I've spotted a typo in dub's[2] command line 
 help:

 clean [<package>]     Removes intermetiate build files and 
 cached build
                         results

 It should read "intermediate" (with "d"), else it sounds like 
 the Goths in Asterix :-)



 [1] dmd 2.066.0
 [2] DUB version 0.9.22, built on Sep 16 2014

Dub builds with debug symbols by default. Using dub build -v will 
tell you how it invokes DMD.