module.git should not reload flow components every time it polls

[erikbaranowski]

What's wrong?

module loaders commonly poll but they should not reload flow components unless a change is detected to the content of the module loader.

Steps to reproduce

use module.git and observe that components are restarted without modification each time it polls.

agent/component/module/git/git.go

Line 231 in 2c12db2

return c.mod.LoadFlowContent(args.Arguments, string(bb))

System information

No response

Software version

No response

Configuration

No response

Logs

No response

[rfratto]

Should the module code in Flow ignore calls to LoadConfig if the config bytes are unchanged? That would make this change available to all module loader components instead of just module.git.

[mattdurham]

That would work as long as we assume all child modules are updating when appropriate. Which I think is a safe assumption.