Embed

https://colobu.com/2021/01/17/go-embed-tutorial/

https://blog.jetbrains.com/go/2021/06/09/how-to-use-go-embed-in-go-1-16/

字符串文件

package main
import (
    _ "embed"
    "fmt"
)
//go:embed hello.txt
var s string
func main() {
    fmt.Println(s)
}

文件夹

package main
import (
    "embed"
    "fmt"
)
//go:embed p
var f embed.FS
func main() {
    data, _ := f.ReadFile("p/hello.txt")
    fmt.Println(string(data))
    data, _ = f.ReadFile("p/hello2.txt")
    fmt.Println(string(data))
}

通用文件

https://github.com/pocketbase/pocketbase/blob/master/ui/embed.go

embed.go

// Package ui handles the PocketBase Admin frontend embedding.
package ui

import (
    "embed"

    "github.com/labstack/echo/v5"
)

//go:embed all:dist
var distDir embed.FS

//go:embed dist/index.html
var indexHTML embed.FS

// DistDirFS contains the embedded dist directory files (without the "dist" prefix)
var DistDirFS = echo.MustSubFS(distDir, "dist")

// DistIndexHTML contains the embedded dist/index.html file (without the "dist" prefix)
var DistIndexHTML = echo.MustSubFS(indexHTML, "dist")