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In order to include condition block results in the JSON plan output, we must store them in the plan and its serialization. Terraform can evaluate condition blocks multiple times, so we must be able to update the result. Accordingly, the plan.Conditions object is a map with keys representing the condition block's address. Condition blocks are not referenceable in any other context, so this address form cannot be used anywhere in the configuration. The commit includes a new test case for the JSON output of a refresh-only plan, which is currently the only way for a failing condition result to be rendered through this path.
54 lines
1.4 KiB
Go
54 lines
1.4 KiB
Go
package plans
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import (
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"sync"
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"github.com/hashicorp/terraform/internal/addrs"
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"github.com/zclconf/go-cty/cty"
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)
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// Conditions describes a set of results for condition blocks evaluated during
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// the planning process. In normal operation, each result will either represent
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// a passed check (Result is cty.True) or a deferred check (Result is
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// cty.UnknownVal(cty.Bool)). Failing checks result in errors, except in
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// refresh-only mode.
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//
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// The map key is a string representation of the check rule address, which is
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// globally unique. Condition blocks can be evaluated multiple times during the
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// planning operation, so we must be able to update an existing result value.
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type Conditions map[string]*ConditionResult
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type ConditionResult struct {
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Address addrs.Checkable
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Result cty.Value
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Type addrs.CheckType
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ErrorMessage string
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}
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func NewConditions() Conditions {
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return make(Conditions)
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}
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func (c Conditions) SyncWrapper() *ConditionsSync {
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return &ConditionsSync{
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results: c,
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}
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}
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// ConditionsSync is a wrapper around a Conditions that provides a
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// concurrency-safe interface to add or update a condition result value.
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type ConditionsSync struct {
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lock sync.Mutex
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results Conditions
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}
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func (cs *ConditionsSync) SetResult(addr addrs.Check, result *ConditionResult) {
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if cs == nil {
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panic("SetResult on nil Conditions")
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}
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cs.lock.Lock()
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defer cs.lock.Unlock()
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cs.results[addr.String()] = result
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}
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