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    [Tutorial] SketchUp Ruby C Extension

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    • D Offline
      designingcrime
      last edited by

      I have been working on a plugin to upload and download files to a webserver through http requests. I found this project on the forums a while ago but It wasn't working.

      Link Preview Image
      GitHub - danawoodman/google-sketchup-file-downloader: [NOT MAINTAINED] A generic and reusable SketchUp Ruby C extension file downloading utility to be used within SketchUp plugins.

      [NOT MAINTAINED] A generic and reusable SketchUp Ruby C extension file downloading utility to be used within SketchUp plugins. - danawoodman/google-sketchup-file-downloader

      favicon

      GitHub (github.com)

      Now I have it working and the C Extension compiled fine in Os X.

      I have been trying to figure out how to compile it in Windows now so that the plugin can be cross-platform. I started reading this thread but its kind of confusing for me. After following the instructions in this project (which I think are a product of this thread)

      404 — Bitbucket

      favicon

      (bitbucket.org)

      I can compile the example code here with extconf.rb and nmake. However compiling dana's extension is a bit more complicated because it links to libcurl.

      there is a line in extconf.rb to check for curllib

      Make sure the cURL library is installed.

      have_library("curl")

      its not

      checking for main() in curl.lib... no
      creating Makefile

      So when using nmake I get this error

      fatal error C1083: Cannot open include file: 'curl/types.h': No such file or directory

      I downloaded libcurl(curl-7.26.0-devel-mingw64, im on windows 7 and not sure which is the best)

      So I can't figure out how to tell nmake to include the path, or where it looks for these files.

      Does anyone have experience making ruby c extensions on windows and know how to include 3rd party libraries?

      Any help would be appreciated.

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      • thomthomT Offline
        thomthom
        last edited by

        I tried to compile Dana's library as well, but since the GiHub project doesn't include the CURL files it failed. And none of the packages I found at the CURL sitecontained the linked files. I asked Dana for which package he used, but it doesn't seem he found it again.

        There's another thread around here that talks about Dana's repository.

        Need to find out what CURL files are required.

        Thomas Thomassen — SketchUp Monkey & Coding addict
        List of my plugins and link to the CookieWare fund

        1 Reply Last reply Reply Quote 0
        • I Offline
          ishboo
          last edited by

          Hey y'all,

          I have not tried compiling on windows since I own a mac. On Mac libcurl is installed system wide so it is more straightforward setting it up.

          One thing that may work is trying to install libcurl using Cygwin and then trying to compile it in Cygwin as well.

          I have a coworker who runs windows, so I'll have him an I check it out next week and see what we can find out!

          SketchUp plugin marketplace: http://extendsketchup.com/

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          • Dan RathbunD Offline
            Dan Rathbun
            last edited by

            @thomthom said:

            There's another thread around here that talks about Dana's repository.

            This one?
            http://forums.sketchucation.com/viewtopic.php?f=180&t=38689&p=415237#p415237

            I'm not here much anymore.

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            • D Offline
              designingcrime
              last edited by

              @thomthom said:

              I tried to compile Dana's library as well, but since the GiHub project doesn't include the CURL files it failed. And none of the packages I found at the CURL sitecontained the linked files. I asked Dana for which package he used, but it doesn't seem he found it again.

              There's another thread around here that talks about Dana's repository.

              Need to find out what CURL files are required.

              Link Preview Image
              GitHub - danawoodman/google-sketchup-file-downloader: [NOT MAINTAINED] A generic and reusable SketchUp Ruby C extension file downloading utility to be used within SketchUp plugins.

              [NOT MAINTAINED] A generic and reusable SketchUp Ruby C extension file downloading utility to be used within SketchUp plugins. - danawoodman/google-sketchup-file-downloader

              favicon

              GitHub (github.com)

              I had no problem building Dana's library on OS X. Like he said curl ships with OS X so it should be on your system, I think you can check by typing which curl in the Terminal. For some reason if its not there I recommend just downloading from macports and making sure its location is in your System PATH.

              Dana's library currently has some inconsistencies about the name of the extension and class its building which creates some problems, in some places it is called file_downloader and in others its called fileDownloader. Change all references to file_downloader to fileDownloader. and run ruby extonf.rb then make.(ignore cmake, because his CMakeList.txt file isn't setup to link libcurl) You will notice a line in extconf.rb

              Make sure the cURL library is installed.

              have_library("curl")

              this basically makes sure that when you compile, curl can be found and linked. When running extconf.rb if you see a line like this
              checking for curl... yes
              this means you will be good to go when you run make

              after building you can check and make sure libcurl is linked to your extension by typing in
              otool -L fileDownloader.bundle

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              • D Offline
                designingcrime
                last edited by

                @ishboo said:

                Hey y'all,

                I have not tried compiling on windows since I own a mac. On Mac libcurl is installed system wide so it is more straightforward setting it up.

                One thing that may work is trying to install libcurl using Cygwin and then trying to compile it in Cygwin as well.

                I have a coworker who runs windows, so I'll have him an I check it out next week and see what we can find out!

                Dana, that would be great if you could ask around. As soon as I get this cross compiled, I will clean all the code up, package it nicely and send you a pull request. btw, I also added upload and basic authentication functionality to the utility as well. My head is kinda spinning around with all the different compilers on windows. I'll spend a day looking into Cygwin soon.

                1 Reply Last reply Reply Quote 0
                • thomthomT Offline
                  thomthom
                  last edited by

                  Did you look at the Hello World example I posted at BitBucket for compiling on Windows and OSX PPC/Intel?

                  Thomas Thomassen — SketchUp Monkey & Coding addict
                  List of my plugins and link to the CookieWare fund

                  1 Reply Last reply Reply Quote 0
                  • D Offline
                    designingcrime
                    last edited by

                    @thomthom said:

                    Did you look at the Hello World example I posted at BitBucket for compiling on Windows and OSX PPC/Intel?

                    Yeah I can get that to compile fine. Where run into problems is linking curllib (or in general linking a c library in wndows) which Is not an issue with your Hello World Example since it doesn't reference any 3rd party libraries

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                    • thomthomT Offline
                      thomthom
                      last edited by

                      I'd be very interested in hearing how you get on with it and any description/mini-tutorial if you would care to do one. I'm very fresh to C so I'd love to learn this.

                      Thomas Thomassen — SketchUp Monkey & Coding addict
                      List of my plugins and link to the CookieWare fund

                      1 Reply Last reply Reply Quote 0
                      • I Offline
                        ishboo
                        last edited by

                        I talked to my colleague and we're gonna try to hack on it this Saturday at our weekly hackathon. Will update if we get around to it. 😄

                        SketchUp plugin marketplace: http://extendsketchup.com/

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                        • Dan RathbunD Offline
                          Dan Rathbun
                          last edited by

                          As as I mentioned before.. there are already Ruby bindings.

                          Curb looks like the most recent, it was last updated June 29, 2012:
                          http://rubygems.org/gems/curb

                          I'm not here much anymore.

                          1 Reply Last reply Reply Quote 0
                          • Dan RathbunD Offline
                            Dan Rathbun
                            last edited by

                            Stay away from Cygwin.

                            If you cannot use MSVS.. at least use MingGW.

                            Here's the link to download the source (which comes with precompiled binaries for curl.exe)
                            http://curl.haxx.se/gknw.net/7.26.0/dist-w32/curl-7.26.0-devel-mingw32.zip

                            OR.. if you just simply want the precompiled binaries (without source):
                            http://curl.haxx.se/gknw.net/7.26.0/dist-w32/curl-7.26.0-rtmp-ssh2-ssl-sspi-zlib-idn-static-bin-w32.zip
                            Has both pre-compiled curl.exe and libcurl.dll, as well as a few more dll files.


                            And how to build on various platforms:
                            http://curl.haxx.se/docs/install.html

                            💭

                            I'm not here much anymore.

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                            • I Offline
                              ishboo
                              last edited by

                              Thanks for the links Dan 👍

                              @dan rathbun said:

                              As as I mentioned before.. there are already Ruby bindings.

                              Curb looks like the most recent, it was last updated June 29, 2012:
                              http://rubygems.org/gems/curb

                              I would assume this would mean the end user would need to install the gem for it to work?

                              SketchUp plugin marketplace: http://extendsketchup.com/

                              1 Reply Last reply Reply Quote 0
                              • thomthomT Offline
                                thomthom
                                last edited by

                                @ishboo said:

                                I talked to my colleague and we're gonna try to hack on it this Saturday at our weekly hackathon. Will update if we get around to it. 😄

                                👍 👍

                                Thomas Thomassen — SketchUp Monkey & Coding addict
                                List of my plugins and link to the CookieWare fund

                                1 Reply Last reply Reply Quote 0
                                • thomthomT Offline
                                  thomthom
                                  last edited by

                                  @dan rathbun said:

                                  Stay away from Cygwin.

                                  If you cannot use MSVS.. at least use MingGW.

                                  Why is this?

                                  Thomas Thomassen — SketchUp Monkey & Coding addict
                                  List of my plugins and link to the CookieWare fund

                                  1 Reply Last reply Reply Quote 0
                                  • Dan RathbunD Offline
                                    Dan Rathbun
                                    last edited by

                                    @ishboo said:

                                    Thanks for the links Dan 👍

                                    @dan rathbun said:

                                    As as I mentioned before.. there are already Ruby bindings.

                                    Curb looks like the most recent, it was last updated June 29, 2012:
                                    http://rubygems.org/gems/curb

                                    I would assume this would mean the end user would need to install the gem for it to work?

                                    Well, no... gems do not work with Sketchup embedded Ruby.

                                    Actually want is probably needed is to look at the handfull of gems and write a Sketchup friendly "clone".

                                    I'm not here much anymore.

                                    1 Reply Last reply Reply Quote 0
                                    • Dan RathbunD Offline
                                      Dan Rathbun
                                      last edited by

                                      @thomthom said:

                                      @dan rathbun said:

                                      Stay away from Cygwin.

                                      If you cannot use MSVS.. at least use MingGW.

                                      Why is this?

                                      My advice. (From what I have read.)

                                      If you want expert advice, ask Luis Lavena over at the Ruby Installer project forum.

                                      I'm not here much anymore.

                                      1 Reply Last reply Reply Quote 0
                                      • Dan RathbunD Offline
                                        Dan Rathbun
                                        last edited by

                                        On this subject:

                                        Redirecting to Google Groups

                                        favicon

                                        (groups.google.com)

                                        I'm not here much anymore.

                                        1 Reply Last reply Reply Quote 0
                                        • D Offline
                                          designingcrime
                                          last edited by

                                          Hey guys, so I finally got a Ruby C extension to compile on both os x and windows and link curllib. I got a lot of help from Luis at the RubyInstaller group and ended up using RubyInstaller and DevKit to link curl and build using the gcc compiler included with devkit.
                                          Here is the extension. Its a modified version of Dana's sketchup downloader, but also included uploading, basic http authentication and ssl certificate checking(all through curl). I provided instructions on how to build on both os x and windows.

                                          https://github.com/sunglass/SunglassPlugins/tree/master/SG-SketchupHook/src/Connection%20Manager

                                          Thanks for all your help guys.

                                          Dana - Lets get your Sketchup downloader plugin working.

                                          1 Reply Last reply Reply Quote 0
                                          • thomthomT Offline
                                            thomthom
                                            last edited by

                                            @designingcrime said:

                                            Hey guys, so I finally got a Ruby C extension to compile on both os x and windows and link curllib. I got a lot of help from Luis at the RubyInstaller group and ended up using RubyInstaller and DevKit to link curl and build using the gcc compiler included with devkit.
                                            Here is the extension. Its a modified version of Dana's sketchup downloader, but also included uploading, basic http authentication and ssl certificate checking(all through curl). I provided instructions on how to build on both os x and windows.

                                            https://github.com/sunglass/SunglassPlugins/tree/master/SG-SketchupHook/src/Connection%20Manager

                                            Thanks for all your help guys.

                                            Dana - Lets get your Sketchup downloader plugin working.

                                             :heart_eyes:
                                            

                                            Thomas Thomassen — SketchUp Monkey & Coding addict
                                            List of my plugins and link to the CookieWare fund

                                            1 Reply Last reply Reply Quote 0
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