51 lines
1.3 KiB
Go
51 lines
1.3 KiB
Go
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package statefile
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import (
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"encoding/json"
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"fmt"
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"github.com/hashicorp/terraform/tfdiags"
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)
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func readStateV3(src []byte) (*File, tfdiags.Diagnostics) {
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var diags tfdiags.Diagnostics
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sV3 := &stateV3{}
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err := json.Unmarshal(src, sV3)
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if err != nil {
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diags = diags.Append(jsonUnmarshalDiags(err))
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return nil, diags
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}
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file, prepDiags := prepareStateV3(sV3)
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diags = diags.Append(prepDiags)
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return file, diags
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}
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func prepareStateV3(sV3 *stateV3) (*File, tfdiags.Diagnostics) {
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var diags tfdiags.Diagnostics
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sV4, err := upgradeStateV3ToV4(sV3)
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if err != nil {
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diags = diags.Append(tfdiags.Sourceless(
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tfdiags.Error,
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upgradeFailed,
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fmt.Sprintf("Error upgrading state file format from version 3 to version 4: %s.", err),
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))
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return nil, diags
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}
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file, prepDiags := prepareStateV4(sV4)
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diags = diags.Append(prepDiags)
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return file, diags
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}
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// stateV2 is a representation of the legacy JSON state format version 3.
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//
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// It is only used to read version 3 JSON files prior to upgrading them to
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// the current format.
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//
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// The differences between version 2 and version 3 are only in the data and
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// not in the structure, so stateV3 actually shares the same structs as
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// stateV2. Type stateV3 represents that the data within is formatted as
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// expected by the V3 format, rather than the V2 format.
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type stateV3 stateV2
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