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schema.go
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schema.go
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package cuegen
import (
"cuelang.org/go/cue/ast"
"cuelang.org/go/cue/format"
// Populating default environment in order to walk it and generate Cue types.
"github.com/benthosdev/benthos/v4/internal/config/schema"
)
// GenerateSchema generates a Cue schema which includes definitions for the
// configuration file structure and component configs.
func GenerateSchema(sch schema.Full) ([]byte, error) {
root := &ast.File{
Decls: []ast.Decl{
&ast.Package{
Name: ast.NewIdent("benthos"),
},
},
}
configDecls, err := doConfig(sch)
if err != nil {
return nil, err
}
root.Decls = append(root.Decls, configDecls...)
inputDecls, err := doComponents(
sch.Inputs,
&componentOptions{
collectionIdent: identInputCollection,
disjunctionIdent: identInputDisjunction,
canLabel: true,
canPreProcess: true,
},
)
if err != nil {
return nil, err
}
root.Decls = append(root.Decls, inputDecls...)
outputDecls, err := doComponents(
sch.Outputs,
&componentOptions{
collectionIdent: identOutputCollection,
disjunctionIdent: identOutputDisjunction,
canLabel: true,
canPreProcess: true,
},
)
if err != nil {
return nil, err
}
root.Decls = append(root.Decls, outputDecls...)
processorDecls, err := doComponents(
sch.Processors,
&componentOptions{
collectionIdent: identProcessorCollection,
disjunctionIdent: identProcessorDisjunction,
canLabel: true,
},
)
if err != nil {
return nil, err
}
root.Decls = append(root.Decls, processorDecls...)
cacheDecls, err := doComponents(
sch.Caches,
&componentOptions{
collectionIdent: identCacheCollection,
disjunctionIdent: identCacheDisjunction,
canLabel: true,
},
)
if err != nil {
return nil, err
}
root.Decls = append(root.Decls, cacheDecls...)
rateLimitDecls, err := doComponents(
sch.RateLimits,
&componentOptions{
collectionIdent: identRateLimitCollection,
disjunctionIdent: identRateLimitDisjunction,
canLabel: true,
},
)
if err != nil {
return nil, err
}
root.Decls = append(root.Decls, rateLimitDecls...)
bufferDecls, err := doComponents(
sch.Buffers,
&componentOptions{
collectionIdent: identBufferCollection,
disjunctionIdent: identBufferDisjunction,
},
)
if err != nil {
return nil, err
}
root.Decls = append(root.Decls, bufferDecls...)
metricDecls, err := doComponents(
sch.Metrics,
&componentOptions{
collectionIdent: identMetricCollection,
disjunctionIdent: identMetricDisjunction,
},
)
if err != nil {
return nil, err
}
root.Decls = append(root.Decls, metricDecls...)
tracerDecls, err := doComponents(
sch.Tracers,
&componentOptions{
collectionIdent: identTracerCollection,
disjunctionIdent: identTracerDisjunction,
},
)
if err != nil {
return nil, err
}
root.Decls = append(root.Decls, tracerDecls...)
scannerDecls, err := doComponents(
sch.Scanners,
&componentOptions{
collectionIdent: identScannerCollection,
disjunctionIdent: identScannerDisjunction,
},
)
if err != nil {
return nil, err
}
root.Decls = append(root.Decls, scannerDecls...)
return format.Node(root)
}