41 lines
1.0 KiB
Go
41 lines
1.0 KiB
Go
package command
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import (
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"errors"
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"github.com/hashicorp/terraform/state"
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"github.com/hashicorp/terraform/terraform"
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)
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// StateMeta is the meta struct that should be embedded in state subcommands.
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type StateMeta struct{}
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// State returns the state for this meta.
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func (m *StateMeta) State(cm *Meta) (state.State, error) {
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return cm.State()
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}
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// filterInstance filters a single instance out of filter results.
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func (c *StateMeta) filterInstance(rs []*terraform.StateFilterResult) (*terraform.StateFilterResult, error) {
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var result *terraform.StateFilterResult
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for _, r := range rs {
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if _, ok := r.Value.(*terraform.InstanceState); !ok {
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continue
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}
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if result != nil {
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return nil, errors.New(errStateMultiple)
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}
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result = r
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}
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return result, nil
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}
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const errStateMultiple = `Multiple instances found for the given pattern!
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This command requires that the pattern match exactly one instance
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of a resource. To view the matched instances, use "terraform state list".
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Please modify the pattern to match only a single instance.`
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