mirror of
https://github.com/akvorado/akvorado.git
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78fb01c223
But not using it as some linters are either plain incorrect (the one suggesting to not use nil for `c.t.Context()`) or just debatable (checking for err value is a good practice, but there are good reasons to opt out in some cases).
50 lines
1.2 KiB
Go
50 lines
1.2 KiB
Go
// SPDX-FileCopyrightText: 2022 Free Mobile
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// SPDX-License-Identifier: AGPL-3.0-only
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package cmd
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import (
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"fmt"
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"akvorado/common/daemon"
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"akvorado/common/reporter"
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)
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// StartStopComponents activate/deactivate components in order.
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func StartStopComponents(r *reporter.Reporter, daemonComponent daemon.Component, otherComponents []interface{}) error {
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components := append([]interface{}{r, daemonComponent}, otherComponents...)
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startedComponents := []interface{}{}
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defer func() {
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for _, cmp := range startedComponents {
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if stopperC, ok := cmp.(stopper); ok {
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if err := stopperC.Stop(); err != nil {
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r.Err(err).Msg("unable to stop component, ignoring")
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}
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}
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}
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}()
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for _, cmp := range components {
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if starterC, ok := cmp.(starter); ok {
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if err := starterC.Start(); err != nil {
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return fmt.Errorf("unable to start component: %w", err)
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}
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}
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startedComponents = append([]interface{}{cmp}, startedComponents...)
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}
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r.Info().
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Str("version", Version).Str("build-date", BuildDate).
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Msg("akvorado has started")
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<-daemonComponent.Terminated()
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r.Info().Msg("stopping all components")
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return nil
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}
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type starter interface {
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Start() error
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}
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type stopper interface {
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Stop() error
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}
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