Adapt hold_box.sh script to run on Windows

[traversaro]

This permit to run the hold_box.script.sh experiment on Windows, as discussed in https://github.com/icub-tech-iit/ergocub-gazebo-simulations/issues/29#issuecomment-1067084821 .

The changes are the following:

• On Windows, neither Git Bash nor the system provide killall, so taskill is used instead.
• On Git Bash on Windows, string that start with / are implicitly interpreted as path and convert to a path, see https://github.com/bmatzelle/gow/issues/196 . To avoid problem related to this, we:
  • Set YARP_CLOCK to //clock on Windows
  • For yarp rpc calls, we specify the argument prefixed with a space, to avoid any problem (this strategy does not work when defining the YARP_CLOCK

The changes are unfortunatly far from being intuitive/mantainable, and this is the reason why for multiplatform multiprogram logic we use either yarpmanager of Python scripts that use the subprocess library ( https://docs.python.org/3/library/subprocess.html ).

[Nicogene]

The changes are unfortunatly far from being intuitive/mantainable, and this is the reason why for multiplatform multiprogram logic we use either yarpmanager of Python scripts that use the subprocess library ( https://docs.python.org/3/library/subprocess.html ).

You are right, if we want to invest time in multiplatform support we should replace the bash scripts. I can open an issue for tracking this activity @vvasco @vtikha In the meanwhile your changes @traversaro are fine! Merging

[traversaro]

Just for a reference on the strange escaping rule in Git Bash:

STraversaro@IITICUBLAP257 MINGW64 ~
$ TEST_VAR=/test cmd.exe /C "echo %TEST_VAR%"
C:/Program Files/Git/test

STraversaro@IITICUBLAP257 MINGW64 ~
$ TEST_VAR=/test/test2 cmd.exe /C "echo %TEST_VAR%"
C:/Program Files/Git/test/test2

STraversaro@IITICUBLAP257 MINGW64 ~
$ TEST_VAR=/test/test2:o cmd.exe /C "echo %TEST_VAR%"
/test/test2:o

STraversaro@IITICUBLAP257 MINGW64 ~
$ TEST_VAR=//test cmd.exe /C "echo %TEST_VAR%"
/test

STraversaro@IITICUBLAP257 MINGW64 ~
$ TEST_VAR=//test/test2 cmd.exe /C "echo %TEST_VAR%"
//test/test2

STraversaro@IITICUBLAP257 MINGW64 ~
$ TEST_VAR=//test cmd.exe /C "echo %TEST_VAR%"