4c527410a3
This endpoint is relatively expensive, as it returns a large amount of data for each stack (essentially the stack's entire checkpoint). We currently call this endpoint in a few places that really just need information about a single stack. In these places we should simply interact with that stack directly. After these changes, there is only one call to the `stacks` endpoint on the startup path: `upgradeConfigurationFiles` loops over all of the stacks in each backend and attempts to upgrade each stack's configuration. Once we no longer need to do this we will not be hitting the `stacks` endpoint on each CLI invocation.
58 lines
1.4 KiB
Go
58 lines
1.4 KiB
Go
// Copyright 2016-2018, Pulumi Corporation. All rights reserved.
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package state
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import (
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"github.com/pulumi/pulumi/pkg/backend"
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"github.com/pulumi/pulumi/pkg/tokens"
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"github.com/pulumi/pulumi/pkg/workspace"
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)
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// Stack returns an stack name after ensuring the stack exists. When an empty stack name is passed, the
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// "current" ambient stack is returned.
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func Stack(name tokens.QName, backends []backend.Backend) (backend.Stack, error) {
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if name == "" {
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return CurrentStack(backends)
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}
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// If not using the current stack, check all of the known backends to see if they know about it.
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for _, be := range backends {
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stack, err := be.GetStack(name)
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if err != nil {
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return nil, err
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}
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if stack != nil {
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return stack, nil
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}
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}
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return nil, nil
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}
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// CurrentStack reads the current stack and returns an instance connected to its backend provider.
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func CurrentStack(backends []backend.Backend) (backend.Stack, error) {
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w, err := workspace.New()
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if err != nil {
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return nil, err
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}
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stackName := w.Settings().Stack
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if stackName == "" {
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return nil, nil
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}
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return Stack(stackName, backends)
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}
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// SetCurrentStack changes the current stack to the given stack name.
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func SetCurrentStack(name tokens.QName) error {
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// Switch the current workspace to that stack.
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w, err := workspace.New()
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if err != nil {
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return err
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}
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w.Settings().Stack = name
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return w.Save()
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}
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