107 lines
2.3 KiB
Go
107 lines
2.3 KiB
Go
package views
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import (
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"sync"
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"github.com/zclconf/go-cty/cty"
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"github.com/hashicorp/terraform/addrs"
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"github.com/hashicorp/terraform/plans"
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"github.com/hashicorp/terraform/states"
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"github.com/hashicorp/terraform/terraform"
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)
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// countHook is a hook that counts the number of resources
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// added, removed, changed during the course of an apply.
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type countHook struct {
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Added int
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Changed int
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Removed int
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ToAdd int
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ToChange int
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ToRemove int
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ToRemoveAndAdd int
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pending map[string]plans.Action
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sync.Mutex
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terraform.NilHook
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}
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var _ terraform.Hook = (*countHook)(nil)
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func (h *countHook) Reset() {
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h.Lock()
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defer h.Unlock()
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h.pending = nil
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h.Added = 0
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h.Changed = 0
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h.Removed = 0
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}
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func (h *countHook) PreApply(addr addrs.AbsResourceInstance, gen states.Generation, action plans.Action, priorState, plannedNewState cty.Value) (terraform.HookAction, error) {
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h.Lock()
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defer h.Unlock()
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if h.pending == nil {
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h.pending = make(map[string]plans.Action)
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}
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h.pending[addr.String()] = action
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return terraform.HookActionContinue, nil
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}
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func (h *countHook) PostApply(addr addrs.AbsResourceInstance, gen states.Generation, newState cty.Value, err error) (terraform.HookAction, error) {
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h.Lock()
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defer h.Unlock()
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if h.pending != nil {
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pendingKey := addr.String()
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if action, ok := h.pending[pendingKey]; ok {
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delete(h.pending, pendingKey)
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if err == nil {
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switch action {
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case plans.CreateThenDelete, plans.DeleteThenCreate:
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h.Added++
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h.Removed++
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case plans.Create:
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h.Added++
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case plans.Delete:
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h.Removed++
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case plans.Update:
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h.Changed++
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}
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}
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}
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}
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return terraform.HookActionContinue, nil
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}
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func (h *countHook) PostDiff(addr addrs.AbsResourceInstance, gen states.Generation, action plans.Action, priorState, plannedNewState cty.Value) (terraform.HookAction, error) {
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h.Lock()
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defer h.Unlock()
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// We don't count anything for data resources
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if addr.Resource.Resource.Mode == addrs.DataResourceMode {
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return terraform.HookActionContinue, nil
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}
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switch action {
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case plans.CreateThenDelete, plans.DeleteThenCreate:
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h.ToRemoveAndAdd += 1
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case plans.Create:
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h.ToAdd += 1
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case plans.Delete:
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h.ToRemove += 1
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case plans.Update:
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h.ToChange += 1
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}
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return terraform.HookActionContinue, nil
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}
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