Cannot read netlist when .cmp does not exist

[Martin d'Allens]

Steps to reproduce :
- Create empty new project
- Open EEschema
- Optionnally place some components and associate their footprints with cvpcb
- Generate the netlist
- Make sure no .cmp file has been created at this point. I understand they are an alternative way to associate footprints and symbols.
- Open pcbnew
- Open its netlist window
- Click on "Read current netlist"

What happens :
- Reading the netlist fails, because a ".cmp" file cannot be read. The following message is displayed :
   Erreurr lors du chargement de la netliste.
   IO_ERROR: Ne peut pas ouvrir le fichier '/home/user/tmp/tmp.cmp' en lecture
   from /build/kicad-OYOLBG/kicad-0.201506092253+5726~23~ubuntu15.04.1/kicad/common/richio.cpp : FILE_LINE_READER() : line 188

What should happen :
- This file should be skipped if it does not exist.

Workaround :
- Create an empty file at this location. Everything works fine after running "touch /home/user/tmp/tmp.cmp".

Application: kicad
Version: 0.201506092253+5726~23~ubuntu15.04.1-product release build
wxWidgets: Version 3.0.2 (debug,wchar_t,compiler with C++ ABI 1002,GCC 4.9.2,wx containers,compatible with 2.8)
Platform: Linux 3.19.0-18-generic x86_64, 64 bit, Little endian, wxGTK
Boost version: 1.54.0
         USE_WX_GRAPHICS_CONTEXT=OFF
         USE_WX_OVERLAY=OFF
         KICAD_SCRIPTING=ON
         KICAD_SCRIPTING_MODULES=ON
         KICAD_SCRIPTING_WXPYTHON=ON
         USE_FP_LIB_TABLE=HARD_CODED_ON
         BUILD_GITHUB_PLUGIN=ON

[Nick Østergaard (nickoe)]

Hmm, that seems to be an error introduced with this announcement, https://lists.launchpad.net/kicad-developers/msg18480.html.

[Chris Pavlina (pavlina-chris)]

Confirmed. Even though we're not generating these anymore, pcbnew still defaults to loading from them.

[Wayne Stambaugh (stambaughw)]

That didn't take long. I just haven't got around to removing that
option from the dialog. How difficult is it so select the read from
netlist option until I get to it?

On 6/11/2015 5:57 PM, Chris Pavlina wrote:
> Confirmed. Even though we're not generating these anymore, pcbnew still
> defaults to loading from them.
>
> ** Changed in: kicad
> Status: New => Confirmed
>
> ** Changed in: kicad
> Importance: Undecided => Medium
>

[jean-pierre charras (jp-charras)]

"Select the read from netlist option" is a project option and is saved in the .pro.

@Wayne:
I have a fix on my working copy about that.
I don't know if you have made some work about that, but I can commit it if you want.

[Chris Pavlina (pavlina-chris)]

Wayne - indeed, that works fine, I've been doing that all along. I still confirmed it as a bug because I don't think most people know about that option, and I wasn't sure if you were still working on it.

[Wayne Stambaugh (stambaughw)]

@JP

If you've got it fixed already, go ahead and commit your changes. I
haven't even started working on it yet.

On 6/12/2015 2:11 AM, jean-pierre charras wrote:
> "Select the read from netlist option" is a project option and is saved
> in the .pro.
>
> @Wayne:
> I have a fix on my working copy about that.
> I don't know if you have made some work about that, but I can commit it if you want.
>