77 lines
2.0 KiB
Go
77 lines
2.0 KiB
Go
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package inputs_procstat
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import (
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"fmt"
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"github.com/influxdata/toml"
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"github.com/influxdata/toml/ast"
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"github.com/influxdata/telegraf/internal/choice"
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"github.com/influxdata/telegraf/migrations"
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)
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// Migration function
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func migrate(tbl *ast.Table) ([]byte, string, error) {
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// Decode the old data structure
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var plugin map[string]interface{}
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if err := toml.UnmarshalTable(tbl, &plugin); err != nil {
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return nil, "", err
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}
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// Check for deprecated option(s) and migrate them
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var applied bool
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if oldUnits, found := plugin["supervisor_unit"]; found {
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applied = true
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// Check if the new option already exists and merge the two
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var units []string
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if newUnits, found := plugin["supervisor_units"]; found {
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nu, ok := newUnits.([]interface{})
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if !ok {
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return nil, "", fmt.Errorf("setting 'supervisor_units' has wrong type %T", newUnits)
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}
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for _, raw := range nu {
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u, ok := raw.(string)
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if !ok {
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return nil, "", fmt.Errorf("setting 'supervisor_units' contains wrong type %T", raw)
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}
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units = append(units, u)
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}
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}
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ou, ok := oldUnits.([]interface{})
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if !ok {
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return nil, "", fmt.Errorf("setting 'supervisor_unit' has wrong type %T", oldUnits)
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}
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for _, raw := range ou {
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u, ok := raw.(string)
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if !ok {
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return nil, "", fmt.Errorf("setting 'supervisor_unit' contains wrong type %T", raw)
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}
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if !choice.Contains(u, units) {
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units = append(units, u)
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}
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}
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plugin["supervisor_units"] = units
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// Remove deprecated setting
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delete(plugin, "supervisor_unit")
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}
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// No options migrated so we can exit early
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if !applied {
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return nil, "", migrations.ErrNotApplicable
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}
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// Create the corresponding plugin configurations
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cfg := migrations.CreateTOMLStruct("inputs", "procstat")
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cfg.Add("inputs", "procstat", plugin)
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output, err := toml.Marshal(cfg)
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return output, "", err
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}
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// Register the migration function for the plugin type
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func init() {
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migrations.AddPluginOptionMigration("inputs.procstat", migrate)
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}
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