fiddle/go/buildlib/buidlib.go

package buildlib

import (
	"context"
	"fmt"
	"path/filepath"

	"go.skia.org/infra/fiddle/go/config"
	"go.skia.org/infra/go/buildskia"
	"go.skia.org/infra/go/exec"
	"go.skia.org/infra/go/sklog"
)

// BuildLib, given a directory that Skia is checked out into, builds libskia.a
// and fiddle_main.o.
func BuildLib(ctx context.Context, checkout, depotTools string) error {
	sklog.Info("Starting GNGen")
	if err := buildskia.GNGen(ctx, checkout, depotTools, "Release", config.GN_FLAGS); err != nil {
		return fmt.Errorf("Failed GN gen: %s", err)
	}

	sklog.Info("Building fiddle")
	if msg, err := buildskia.GNNinjaBuild(ctx, checkout, depotTools, "Release", "fiddle", true); err != nil {
		return fmt.Errorf("Failed ninja build of fiddle: %q %s", msg, err)
	}

	sklog.Info("Running the default fiddle")
	runFiddleCmd := &exec.Command{
		Name:       filepath.Join(checkout, "skia", "out", "Release", "fiddle"),
		Dir:        filepath.Join(checkout, "skia"),
		Env:        []string{"LD_LIBRARY_PATH=" + config.EGL_LIB_PATH},
		InheritEnv: true,
		LogStderr:  true,
		LogStdout:  true,
	}

	if err := exec.Run(ctx, runFiddleCmd); err != nil {
		return fmt.Errorf("Failed to run the default fiddle: %s", err)
	}

	return nil
}