40 lines
974 B
Go
40 lines
974 B
Go
//go:build !dev
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// Package web embeds the frontend build (web/dist, generated by pnpm build) in the Go binary.
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// Use -tags dev during development; Vite serves the frontend, as described in embed_dev.go.
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package web
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import (
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"bytes"
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"embed"
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"fmt"
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"io/fs"
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)
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//go:embed all:dist
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var dist embed.FS
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func Dist() fs.FS {
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sub, err := fs.Sub(dist, "dist")
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if err != nil {
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panic(err) // The compile-time constant path cannot fail.
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}
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return sub
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}
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// BuildVersion shares the page entry's build identifier and fails explicitly when production output is missing.
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func BuildVersion() (string, error) {
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html, err := fs.ReadFile(Dist(), "index.html")
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if err != nil {
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return "", err
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}
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marker := []byte(`<meta name="rawmark-version" content="`)
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if start := bytes.Index(html, marker); start >= 0 {
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rest := html[start+len(marker):]
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if end := bytes.IndexByte(rest, '"'); end > 0 {
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return string(rest[:end]), nil
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}
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}
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return "", fmt.Errorf("缺少构建版本")
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}
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