63 lines
1.4 KiB
Go
63 lines
1.4 KiB
Go
//go:build !js
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// Package main provides a build-time CLI for generating Web Component JS bundles.
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// Reads a JSON slot map from stdin, writes the generated JS to stdout.
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//
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// Usage:
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//
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// echo '{"H":"nav-bar","C":"main-content"}' | go run ./cmd/codegen/ > components.js
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package main
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import (
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goio "io"
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core "dappco.re/go/core"
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"dappco.re/go/core/html/codegen"
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coreio "dappco.re/go/core/io"
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log "dappco.re/go/core/log"
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)
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func run(r goio.Reader, w goio.Writer) error {
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data, err := goio.ReadAll(r)
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if err != nil {
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return log.E("codegen", "reading stdin", err)
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}
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var slots map[string]string
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if result := core.JSONUnmarshal(data, &slots); !result.OK {
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err, _ := result.Value.(error)
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return log.E("codegen", "invalid JSON", err)
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}
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js, err := codegen.GenerateBundle(slots)
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if err != nil {
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return log.E("codegen", "generate bundle", err)
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}
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_, err = goio.WriteString(w, js)
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if err != nil {
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return log.E("codegen", "writing bundle", err)
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}
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return nil
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}
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func main() {
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stdin, err := coreio.Local.Open("/dev/stdin")
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if err != nil {
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panic(log.E("codegen.main", "open stdin", err))
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}
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stdout, err := coreio.Local.Create("/dev/stdout")
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if err != nil {
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panic(log.E("codegen.main", "open stdout", err))
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}
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defer func() {
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_ = stdin.Close()
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_ = stdout.Close()
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}()
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if err := run(stdin, stdout); err != nil {
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log.Error("codegen failed", "err", err)
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panic(err)
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}
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}
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