wasi-module-sdk-go/examples/hello_world_go/module/hello_world.go

55 lines
1.1 KiB
Go

package module
import (
"fmt"
"os"
"code.icb4dc0.de/buildr/wasi-module-sdk-go/exec"
"golang.org/x/exp/slog"
sdk "code.icb4dc0.de/buildr/wasi-module-sdk-go"
)
var _ sdk.Module = (*HelloWorld)(nil)
type HelloWorld struct {
Name string
}
func (h HelloWorld) Execute(ctx sdk.ExecutionContext) error {
logger := ctx.Logger()
logger.Info("Executing hello world", slog.String("name", h.Name))
if f, err := os.CreateTemp(ctx.OutDir(), "hello_world.*.txt"); err != nil {
return err
} else if err = f.Close(); err != nil {
return err
}
if foundPath, err := exec.LookPath("go"); err != nil {
return err
} else {
logger.Info("found path for go", slog.String("path", foundPath))
}
cmd := exec.NewCommand("/bin/bash", "-c", `set -ex; echo "Hello process execution!"`)
if err := cmd.Run(); err != nil {
return err
}
fmt.Println("Hello world")
_, _ = fmt.Fprint(ctx.StdOut(), "Hello world via pipeline")
return nil
}
func (HelloWorld) Category() sdk.Category {
return sdk.CategoryTask
}
func (HelloWorld) Type() string {
return "hello_world"
}