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observefs.go
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observefs.go
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// Copyright 2022 Namespace Labs Inc; All rights reserved.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
package debug
import (
"context"
"fmt"
"github.com/spf13/cobra"
"namespacelabs.dev/foundation/internal/cli/fncobra"
"namespacelabs.dev/foundation/internal/compute"
"namespacelabs.dev/foundation/internal/console"
"namespacelabs.dev/foundation/internal/parsing/module"
"namespacelabs.dev/foundation/internal/wscontents"
)
func newObserveFsCmd() *cobra.Command {
cmd := &cobra.Command{
Use: "observe-fs",
Short: "Continuously observe the filesystem, for debugging purposes.",
Args: cobra.NoArgs,
RunE: fncobra.RunE(func(ctx context.Context, args []string) error {
module, err := module.FindRoot(ctx, ".")
if err != nil {
return err
}
return compute.Continuously(ctx, &sinkObserve{
events: wscontents.Observe(module.Abs(), ".", true),
}, nil)
}),
}
return cmd
}
type sinkObserve struct {
events compute.Computable[wscontents.Versioned]
}
func (so *sinkObserve) Inputs() *compute.In { return compute.Inputs().Computable("events", so.events) }
func (so *sinkObserve) Updated(ctx context.Context, deps compute.Resolved) error {
fmt.Fprintf(console.Stdout(ctx), "%+v\n", deps)
return nil
}
func (so *sinkObserve) Cleanup(context.Context) error { return nil }