67 lines
2 KiB
Go
67 lines
2 KiB
Go
// Copyright 2016-2018, Pulumi Corporation.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package deploy
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import (
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"context"
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"github.com/pulumi/pulumi/sdk/v3/go/common/tokens"
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"github.com/pulumi/pulumi/sdk/v3/go/common/util/contract"
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"github.com/pulumi/pulumi/sdk/v3/go/common/util/result"
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)
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// NewFixedSource returns a valid planning source that is comprised of a list of pre-computed steps.
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func NewFixedSource(ctx tokens.PackageName, steps []SourceEvent) Source {
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return &fixedSource{ctx: ctx, steps: steps}
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}
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// A fixedSource just returns from a fixed set of resource states.
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type fixedSource struct {
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ctx tokens.PackageName
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steps []SourceEvent
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}
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func (src *fixedSource) Close() error { return nil }
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func (src *fixedSource) Project() tokens.PackageName { return src.ctx }
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func (src *fixedSource) Info() interface{} { return nil }
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func (src *fixedSource) Iterate(
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ctx context.Context, opts Options, providers ProviderSource) (SourceIterator, result.Result) {
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contract.Ignore(ctx) // TODO[pulumi/pulumi#1714]
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return &fixedSourceIterator{
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src: src,
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current: -1,
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}, nil
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}
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// fixedSourceIterator always returns nil, nil in response to Next, indicating that it is done.
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type fixedSourceIterator struct {
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src *fixedSource
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current int
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}
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func (iter *fixedSourceIterator) Close() error {
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return nil // nothing to do.
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}
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func (iter *fixedSourceIterator) Next() (SourceEvent, result.Result) {
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iter.current++
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if iter.current >= len(iter.src.steps) {
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return nil, nil
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}
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return iter.src.steps[iter.current], nil
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}
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