68 lines
1.7 KiB
Go
68 lines
1.7 KiB
Go
package command
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import (
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"errors"
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"fmt"
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"time"
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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. This is different then Meta.State
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// in the way that backups are done. This configures backups to be timestamped
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// rather than just the original state path plus a backup path.
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func (c *StateMeta) State(m *Meta) (state.State, error) {
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// Disable backups since we wrap it manually below
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m.backupPath = "-"
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// Get the state (shouldn't be wrapped in a backup)
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s, err := m.State()
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if err != nil {
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return nil, err
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}
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// Determine the backup path. stateOutPath is set to the resulting
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// file where state is written (cached in the case of remote state)
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backupPath := fmt.Sprintf(
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"%s.%d.%s",
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m.stateOutPath,
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time.Now().UTC().Unix(),
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DefaultBackupExtension)
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// Wrap it for backups
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s = &state.BackupState{
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Real: s,
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Path: backupPath,
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}
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return s, nil
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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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