30 lines
920 B
Go
30 lines
920 B
Go
package main
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import (
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"encoding/json"
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"fmt"
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"os"
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"mesh-delivery-builder/internal/build"
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)
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// capacityFrom is the build capacity of each node (ADR 0478 clause 3): the module's setting `capacity`, `<node>=<steps at
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// once>` pairs separated by commas, laid into the settings file the controller composes (issue 1661); empty is one step at a
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// time on every node. With no settings file named, fallback is read instead, for a run outside the module's launch.
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func capacityFrom(path, fallback string) (map[string]int, error) {
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if path == "" {
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return build.ParseCapacity(fallback)
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}
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raw, err := os.ReadFile(path)
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if err != nil {
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return nil, fmt.Errorf("the settings file: %w", err)
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}
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var s struct {
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Capacity string `json:"capacity"`
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}
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if err := json.Unmarshal(raw, &s); err != nil {
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return nil, fmt.Errorf("the settings file %s is not JSON: %w", path, err)
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}
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return build.ParseCapacity(s.Capacity)
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}
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