Duet3D Logo Duet3D
    • Tags
    • Documentation
    • Order
    • Register
    • Login

    [DSF Extension] Exec On MCode (was: Shutdown SBC)

    Scheduled Pinned Locked Moved
    DSF Development
    22
    117
    9.9k
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • Greg_the_makerundefined
      Greg_the_maker
      last edited by

      Hello,

      I'm a complete idiot when it comes to programming and I am finding the instructions a little vague. I feel I need some assistance please 🙂

      The Installation is as follows.

      a3fd2a10-0826-4fe3-95d4-9a67debde466-image.png

      Download.

      Does this mean git clone? That's what I did anyway.

      Rename to just execonmcode

      Rename what? There are a load of .go files in the directory, do I rename one of those?

      chmod etc

      The rest of the install I can manage. I think.

      Thank you for your time.

      wilrikerundefined 1 Reply Last reply Reply Quote 0
      • PCRundefined
        PCR
        last edited by PCR

        look some pots up. I made a video about this @Greg_the_maker

        1 Reply Last reply Reply Quote 0
        • Greg_the_makerundefined
          Greg_the_maker
          last edited by

          What is it i need to be looking for?

          1 Reply Last reply Reply Quote 0
          • PCRundefined
            PCR @PCR
            last edited by

            @PCR said in [DSF Extension] Exec On MCode (was: Shutdown SBC):

            made a little videos how to install it. Mainly for my own reference later

            How to install and test

            How to make it as a systemservice

            Here you go

            1 Reply Last reply Reply Quote 0
            • Greg_the_makerundefined
              Greg_the_maker
              last edited by

              thank you 🙂

              1 Reply Last reply Reply Quote 0
              • wilrikerundefined
                wilriker @Greg_the_maker
                last edited by

                @Greg_the_maker Thanks for pointing that out. I will point the download instructions towards the GitHub Releases page. For there it should be clear what is meant by renaming also.

                Manuel
                Duet 3 6HC (v0.6) with RPi 4B on a custom Cartesian
                with probably always latest firmware/DWC (incl. betas or self-compiled)
                My Tool Collection

                1 Reply Last reply Reply Quote 1
                • Greg_the_makerundefined
                  Greg_the_maker
                  last edited by

                  Is tehre a way to get terminal messages displayed in the console?

                  For example I need to see a list of usb devices with lsusb, is it possible to have that list returned as an M117 message or similar?

                  wilrikerundefined 1 Reply Last reply Reply Quote 0
                  • wilrikerundefined
                    wilriker @Greg_the_maker
                    last edited by

                    @Greg_the_maker In theory this is possible. Right now successful execution will discard the application output and error in execution results in an error being sent to DCS what failed (e.g. file not found but still not the output of the application).

                    I could add that but I am not sure how it will deal with line-breaks.

                    Manuel
                    Duet 3 6HC (v0.6) with RPi 4B on a custom Cartesian
                    with probably always latest firmware/DWC (incl. betas or self-compiled)
                    My Tool Collection

                    Greg_the_makerundefined 1 Reply Last reply Reply Quote 0
                    • Greg_the_makerundefined
                      Greg_the_maker @wilriker
                      last edited by

                      @wilriker Ahh ok. was just a thought. would be a nice feature to have though 😉

                      wilrikerundefined 1 Reply Last reply Reply Quote 0
                      • wilrikerundefined
                        wilriker @Greg_the_maker
                        last edited by wilriker

                        @Greg_the_maker I have to correct myself. In case of an error it will indeed return the output of stdout and stderr combined as an error message. But since we are in short-lived world things can be changed quickly and thus:

                        Release v5.1.2

                        This release adds a new flag -returnOutput to be able to send the collected output of a successful run back to DCS. Prior this was only the case if the execution of the command failed.
                        Note that this cannot be combined with -execAsync.

                        Download

                        As usual get it from GitHub Releases page.

                        Manuel
                        Duet 3 6HC (v0.6) with RPi 4B on a custom Cartesian
                        with probably always latest firmware/DWC (incl. betas or self-compiled)
                        My Tool Collection

                        Greg_the_makerundefined oozeBotundefined 2 Replies Last reply Reply Quote 4
                        • Greg_the_makerundefined
                          Greg_the_maker @wilriker
                          last edited by

                          @wilriker Fantastic! Works exactly as desired. Have my upvote!

                          1 Reply Last reply Reply Quote 0
                          • oozeBotundefined
                            oozeBot @wilriker
                            last edited by

                            @wilriker Could you please provide a simple example of using the -returnOutput flag? Thanks

                            wilrikerundefined 1 Reply Last reply Reply Quote 0
                            • wilrikerundefined
                              wilriker @oozeBot
                              last edited by wilriker

                              @oozeBot said in [DSF Extension] Exec On MCode (was: Shutdown SBC):

                              @wilriker Could you please provide a simple example of using the -returnOutput flag? Thanks

                              Simple example:

                              execonmode -mCode 7777 -command "whoami" -returnOutput
                              

                              will not just confirm successful completion of the command but as part of this return the output of whoami (that returns the user execonmcode is started as, so probably root) so you can see it e.g. in DWC.

                              Manuel
                              Duet 3 6HC (v0.6) with RPi 4B on a custom Cartesian
                              with probably always latest firmware/DWC (incl. betas or self-compiled)
                              My Tool Collection

                              oozeBotundefined 2 Replies Last reply Reply Quote 0
                              • oozeBotundefined
                                oozeBot @wilriker
                                last edited by

                                @wilriker Thanks. So the return is echo'ed in DWC, correct? Could the return value be evaluated within conditional gCode?

                                garethkyundefined 1 Reply Last reply Reply Quote 0
                                • garethkyundefined
                                  garethky @oozeBot
                                  last edited by garethky

                                  @oozeBot said in [DSF Extension] Exec On MCode (was: Shutdown SBC):

                                  @wilriker Thanks. So the return is echo'ed in DWC, correct? Could the return value be evaluated within conditional gCode?

                                  I was thinking about this today. Currently there are no variables so there is nothing to write the result back to. (there is a result int from the last code but it can't contain other data types) I think we might have to wait for variables and then we could write the value back to a global.

                                  When that happens... it should be possible to set up an MCode that stores and retrieves values from a file on the SD card. So we could do what M500 does but with key/value semantics of M409:

                                  M7500 K"some.key" V"The value"
                                  M7500 K"some.other.key" V0.05
                                  

                                  and then get them back in a global with:

                                  M7500 K"some.key"
                                  echo {global.M7500_value}    ; or whatever you want to name it!
                                  

                                  and stored on disk as JSON:

                                  "some": {
                                      "key": "The Value"
                                      "other": {
                                          "key": 0.05
                                      }
                                  }
                                  
                                  1 Reply Last reply Reply Quote 1
                                  • EMRosaundefined
                                    EMRosa
                                    last edited by

                                    Great work! This is incredibly useful and appreciated!

                                    Is there a way to pass quotes through the -command argument?
                                    For example:

                                    execonmcode --command "sudo pkill -fx "blah, blah, blah"" -mCode 7720 -execAsync
                                    

                                    I've tried single quotes, escape characters, and changing it to an argument passed through the m-code command;

                                    execonmcode --command "sudo pkill -fx %F" -mCode 7720 -execAsync
                                    

                                    and then tried from DWC:

                                    M7720 F"python3 script.py"
                                    

                                    but the full argument gets lost. I foolishly tried double quotes and DSF crashed. haha.

                                    Please, forgive my inexperience. There is probably a simple answer to this, but it seems to escape my googling ability.

                                    wilrikerundefined 2 Replies Last reply Reply Quote 0
                                    • wilrikerundefined
                                      wilriker @EMRosa
                                      last edited by

                                      @EMRosa Quick answer is: this is currently not implemented.
                                      I'll think about adding it, though.

                                      Manuel
                                      Duet 3 6HC (v0.6) with RPi 4B on a custom Cartesian
                                      with probably always latest firmware/DWC (incl. betas or self-compiled)
                                      My Tool Collection

                                      EMRosaundefined 1 Reply Last reply Reply Quote 0
                                      • ukwebbundefined
                                        ukwebb
                                        last edited by

                                        followed your video and got it installed and working in 5 minutes - superb work - thanks

                                        1 Reply Last reply Reply Quote 0
                                        • EMRosaundefined
                                          EMRosa @wilriker
                                          last edited by

                                          @wilriker thanks for the quick reply! No worries; at least it wasn’t something related to my Linux-literacy (or lack thereof). Haha. Your work and efforts on this implementation are inspirational.

                                          1 Reply Last reply Reply Quote 0
                                          • wilrikerundefined
                                            wilriker @EMRosa
                                            last edited by wilriker

                                            @EMRosa said in [DSF Extension] Exec On MCode (was: Shutdown SBC):

                                            I've tried single quotes, escape characters, and changing it to an argument passed through the m-code command;

                                            execonmcode --command "sudo pkill -fx %F" -mCode 7720 -execAsync
                                            

                                            I thought about this some more and actually the above should work. Though probably as you use -fx on pkill this has to match the full commandline, i.e. you also have to specify the path to python3, so you will probably need use the following command:

                                            M7720 F"/usr/bin/python3 script.py"
                                            

                                            EDIT: to find the full commandline while your script.py is running use

                                            $ pgrep -fa "python3 script.py"
                                            

                                            This should give you the PID as well as the full command-line of your process.

                                            Manuel
                                            Duet 3 6HC (v0.6) with RPi 4B on a custom Cartesian
                                            with probably always latest firmware/DWC (incl. betas or self-compiled)
                                            My Tool Collection

                                            1 Reply Last reply Reply Quote 0
                                            • First post
                                              Last post
                                            Unless otherwise noted, all forum content is licensed under CC-BY-SA