80 lines
2.6 KiB
Go
80 lines
2.6 KiB
Go
package terraform
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import (
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"log"
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"github.com/hashicorp/terraform/internal/addrs"
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"github.com/hashicorp/terraform/internal/configs"
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"github.com/hashicorp/terraform/internal/states"
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"github.com/hashicorp/terraform/internal/tfdiags"
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"github.com/zclconf/go-cty/cty"
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)
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// Validate performs semantic validation of a configuration, and returns
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// any warnings or errors.
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//
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// Syntax and structural checks are performed by the configuration loader,
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// and so are not repeated here.
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//
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// Validate considers only the configuration and so it won't catch any
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// errors caused by current values in the state, or other external information
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// such as root module input variables. However, the Plan function includes
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// all of the same checks as Validate, in addition to the other work it does
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// to consider the previous run state and the planning options.
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func (c *Context) Validate(config *configs.Config) tfdiags.Diagnostics {
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defer c.acquireRun("validate")()
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var diags tfdiags.Diagnostics
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moreDiags := c.checkConfigDependencies(config)
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diags = diags.Append(moreDiags)
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// If required dependencies are not available then we'll bail early since
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// otherwise we're likely to just see a bunch of other errors related to
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// incompatibilities, which could be overwhelming for the user.
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if diags.HasErrors() {
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return diags
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}
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log.Printf("[DEBUG] Building and walking validate graph")
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// Validate is to check if the given module is valid regardless of
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// input values, current state, etc. Therefore we populate all of the
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// input values with unknown values of the expected type, allowing us
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// to perform a type check without assuming any particular values.
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varValues := make(InputValues)
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for name, variable := range config.Module.Variables {
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ty := variable.Type
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if ty == cty.NilType {
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// Can't predict the type at all, so we'll just mark it as
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// cty.DynamicVal (unknown value of cty.DynamicPseudoType).
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ty = cty.DynamicPseudoType
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}
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varValues[name] = &InputValue{
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Value: cty.UnknownVal(ty),
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SourceType: ValueFromUnknown,
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}
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}
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graph, moreDiags := ValidateGraphBuilder(&PlanGraphBuilder{
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Config: config,
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Plugins: c.plugins,
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State: states.NewState(),
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RootVariableValues: varValues,
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}).Build(addrs.RootModuleInstance)
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diags = diags.Append(moreDiags)
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if moreDiags.HasErrors() {
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return diags
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}
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walker, walkDiags := c.walk(graph, walkValidate, &graphWalkOpts{
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Config: config,
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})
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diags = diags.Append(walker.NonFatalDiagnostics)
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diags = diags.Append(walkDiags)
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if walkDiags.HasErrors() {
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return diags
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}
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return diags
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}
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