62 lines
1.2 KiB
Go
62 lines
1.2 KiB
Go
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package internal
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import (
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"encoding/json"
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"reflect"
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"runtime"
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)
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// Environment describes the application's environment.
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type Environment struct {
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Compiler string `env:"runtime.Compiler"`
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GOARCH string `env:"runtime.GOARCH"`
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GOOS string `env:"runtime.GOOS"`
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Version string `env:"runtime.Version"`
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NumCPU int `env:"runtime.NumCPU"`
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}
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var (
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// SampleEnvironment is useful for testing.
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SampleEnvironment = Environment{
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Compiler: "comp",
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GOARCH: "arch",
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GOOS: "goos",
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Version: "vers",
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NumCPU: 8,
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}
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)
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// NewEnvironment returns a new Environment.
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func NewEnvironment() Environment {
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return Environment{
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Compiler: runtime.Compiler,
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GOARCH: runtime.GOARCH,
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GOOS: runtime.GOOS,
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Version: runtime.Version(),
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NumCPU: runtime.NumCPU(),
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}
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}
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// MarshalJSON prepares Environment JSON in the format expected by the collector
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// during the connect command.
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func (e Environment) MarshalJSON() ([]byte, error) {
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var arr [][]interface{}
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val := reflect.ValueOf(e)
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numFields := val.NumField()
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arr = make([][]interface{}, numFields)
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for i := 0; i < numFields; i++ {
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v := val.Field(i)
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t := val.Type().Field(i).Tag.Get("env")
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arr[i] = []interface{}{
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t,
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v.Interface(),
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}
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}
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return json.Marshal(arr)
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}
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