2eb86b24c2
This change implements some feedback from @ellismg.
* Make backend.Stack an interface and let backends implement it,
enabling dynamic type testing/casting to access information
specific to that backend. For instance, the cloud.Stack conveys
the cloud URL, org name, and PPC name, for each stack.
* Similarly expose specialized backend.Backend interfaces,
local.Backend and cloud.Backend, to convey specific information.
* Redo a bunch of the commands in terms of these.
* Keeping with this theme, turn the CreateStack options into an
opaque interface{}, and let the specific backends expose their
own structures with their own settings (like PPC name in cloud).
* Show both the org and PPC names in the cloud column printed in
the stack ls command, in addition to the Pulumi Cloud URL.
Unrelated, but useful:
* Special case the 401 HTTP response and make a friendly error,
to tell the developer they must use `pulumi login`. This is
better than tossing raw "401: Unauthorized" errors in their face.
* Change the "Updating stack '..' in the Pulumi Cloud" message to
use the correct action verb ("Previewing", "Destroying", etc).
61 lines
1.4 KiB
Go
61 lines
1.4 KiB
Go
// Copyright 2016-2017, 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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stacks, err := be.ListStacks()
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if err != nil {
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return nil, err
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}
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for _, stack := range stacks {
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if stack.Name() == name {
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return stack, nil
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}
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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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