tools/fastdds/fastdds needs shebang

[SubaruArai]

Is there an already existing issue for this?

• I have searched the existing issues

Expected behavior

The scripts should run regardless of the shell used.

Current behavior

It doesn't run with non-POSIX compliant shells (e.g. fish)

Steps to reproduce

1. start a fish shell (or any non-POSIX compliant shells, that doesn't support var=xxx)
2. run fastdds or ros-discovery
3. see how it fails

Fast DDS version/commit

All 2.x.x versions

Platform/Architecture

Ubuntu Focal 20.04 amd64, Ubuntu Focal 20.04 arm64

Transport layer

Default configuration, UDPv4 & SHM

Additional context

It is solvable by adding following shebang:

#! /usr/bin/env sh

To those 2 files:

• tools/fastdds/fastdds
• tools/fastdds/ros-discovery

XML configuration file

No response

Relevant log output

No response

Network traffic capture

No response

[SubaruArai]

I can't sign the DCO anytime soon, so I posted as an issue.

[JLBuenoLopez]

Thanks for your report @SubaruArai,

I have issued #3732 to improve the scripts portability.

Regarding the DCO, the only requirement is that your commit is signed which is easy to do using the option -s when committing: git commit -s. So next time you can contribute yourself if you want.

I have labeled this feature as enhancement and consequently I am moving the ticket to the Ideas discussion forum as per Fast DDS CONTRIBUTING guidelines