facebookincubator / TTPForge / 6906762180

69%

main: 67%

Pull #423

github

Add checks package for runtime condition verification

Summary:
This feature will power verification of:

* TTP Prerequisites (right tools being installed, running in correct environment, etc)
* Verification that individual steps return the correct results

I'm adding it as an isolated package for now, in a subsequent diff I will hook it into `step.go` like this:

```
// CommonStepFields contains the fields
// common to every type of step (such as Name).
// It centralizes validation to simplify the code
type CommonStepFields struct {
	Name        string         `yaml:"name,omitempty"`
	Description string         `yaml:"description,omitempty"`
	Checks      []checks.Check `yaml:"checks,omitempty"`
```

Note that this initial diff only contains one type of check (path existence) but others will be added shortly - wanted to keep it small to get comments on the overall structure first.

Differential Revision: D51428503

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