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package terraform
import (
"github.com/hashicorp/terraform/addrs"
"github.com/hashicorp/terraform/configs"
"github.com/hashicorp/terraform/providers"
)
// ProviderEvalTree returns the evaluation tree for initializing and
// configuring providers.
func ProviderEvalTree(n *NodeApplyableProvider, config *configs.Provider) EvalNode {
var provider providers.Interface
addr := n.Addr
relAddr := addr.ProviderConfig
seq := make([]EvalNode, 0, 5)
seq = append(seq, &EvalInitProvider{
TypeName: relAddr.Type,
Addr: addr.ProviderConfig,
})
// Input stuff
seq = append(seq, &EvalOpFilter{
Ops: []walkOperation{walkImport},
Node: &EvalSequence{
Nodes: []EvalNode{
&EvalGetProvider{
Addr: addr,
Output: &provider,
},
},
},
})
seq = append(seq, &EvalOpFilter{
Ops: []walkOperation{walkValidate},
Node: &EvalSequence{
Nodes: []EvalNode{
&EvalGetProvider{
Addr: addr,
Output: &provider,
},
&EvalValidateProvider{
Addr: relAddr,
Provider: &provider,
Config: config,
},
},
},
})
// Apply stuff
seq = append(seq, &EvalOpFilter{
Ops: []walkOperation{walkRefresh, walkPlan, walkApply, walkDestroy, walkImport},
Node: &EvalSequence{
Nodes: []EvalNode{
&EvalGetProvider{
Addr: addr,
Output: &provider,
},
},
},
})
// We configure on everything but validate, since validate may
// not have access to all the variables.
seq = append(seq, &EvalOpFilter{
Ops: []walkOperation{walkRefresh, walkPlan, walkApply, walkDestroy, walkImport},
Node: &EvalSequence{
Nodes: []EvalNode{
&EvalConfigProvider{
Addr: relAddr,
Provider: &provider,
Config: config,
},
},
},
})
return &EvalSequence{Nodes: seq}
}
// CloseProviderEvalTree returns the evaluation tree for closing
// provider connections that aren't needed anymore.
func CloseProviderEvalTree(addr addrs.AbsProviderConfig) EvalNode {
return &EvalCloseProvider{Addr: addr.ProviderConfig}
}
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