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Prerequisites

Currently rhc is written under the assumption that it is running on a Red Hat Enterprise Linux distribution. It will likely work on other RHEL-compatible distributions, but may require additional packages or adjustments in order to fully function.

Building

It is possible to build rhc binary simply by running:

make

If you want to install rhc into system, then it is recommended to create RPM package and install rhc using package manager like dnf. You can create RPM package using packit CLI too:

packit build locally

Remote Debugging

If you run rhc in a virtual machine, it is still possible to run rhc in a debugger. Within the virtual machine, install dlv:

sudo go install github.com/go-delve/delve/cmd/dlv@latest

You may need to open TCP port 2345 in the virtual machine. For example, to open the port using firewalld, run:

sudo firewall-cmd --zone public --add-port 2345/tcp --permanent

Run dlv debug:

sudo /root/go/bin/dlv debug --api-version 2 --headless --listen 0.0.0.0:2345 ./ -- connect --username NNN --password ***

Once dlv is running, connect to the service, using either dlv attach from your host, or by creating a launch configuration in Visual Studio Code:

{
    "name": "Connect to server",
    "type": "go",
    "request": "attach",
    "mode": "remote",
    "remotePath": "${workspaceFolder}",
    "port": 2345,
    "host": "192.168.122.98"
}

Make sure to replace "host" with your virtual machine's IP address.

Code Guidelines

  • Commits follow the Conventional Commits pattern.
  • Commit messages should include a concise subject line that completes the following phrase: "when applied, this commit will...". The body of the commit should further expand on this statement with additional relevant details.
  • Communicate errors through return values, not logging. Library functions in particular should follow this guideline. You never know under which condition a library function will be called, so excessive logging should be avoided.
  • Code should exist in a package only if it can be useful when imported exclusively.
  • Code can exist in a package if it provides an alternative interface to another package, and the two packages cannot be imported together.

Required Reading

In addition to these 3 "classics", A collection of Go style guides contains a wealth of resources on writing idiomatic Go.

Contact

Chat on Matrix: #yggd:matrix.org.