22387d24cd
This change flips the polarity on parallelism: rather than having a --serialize flag, we will have a --parallel=P flag, and by default we will shut off parallelism. We aren't benefiting from it at the moment (until we implement pulumi/pulumi-fabric#106), and there are more hidden dependencies in places like AWS Lambdas and Permissions than I had realized. We may revisit the default, but this allows us to bite off the messiness of dependsOn only when we benefit from it. And in any case, the --parallel=P capability will be useful.
30 lines
1.5 KiB
Go
30 lines
1.5 KiB
Go
// Copyright 2016-2017, Pulumi Corporation. All rights reserved.
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package plugin
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import (
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"io"
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"github.com/pulumi/pulumi-fabric/pkg/tokens"
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)
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// LanguageRuntime is a convenient interface for interacting with language runtime plugins. These tend to be
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// dynamically loaded as plugins, although this interface hides this fact from the calling code.
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type LanguageRuntime interface {
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// Closer closes any underlying OS resources associated with this plugin (like processes, RPC channels, etc).
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io.Closer
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// Run executes a program in the language runtime for planning or deployment purposes. If info.DryRun is true,
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// the code must not assume that side-effects or final values resulting from resource deployments are actually
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// available. If it is false, on the other hand, a real deployment is occurring and it may safely depend on these.
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Run(info RunInfo) (string, error)
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}
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// RunInfo contains all of the information required to perform a plan or deployment operation.
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type RunInfo struct {
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Pwd string // the program's working directory.
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Program string // the path to the program to execute.
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Args []string // any arguments to pass to the program.
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Config map[tokens.ModuleMember]string // the configuration variables to apply before running.
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DryRun bool // true if we are performing a dry-run (plan).
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Parallel int // the degree of parallelism for resource operations (<=1 for serial).
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}
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