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// Copyright 2019 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Package generator provides tools for generating clients.
package generator
import (
"context"
"fmt"
"log"
"os"
"os/exec"
"strings"
)
// Generate generates genproto and gapics.
func Generate(ctx context.Context, googleapisDir, genprotoDir, gocloudDir, protoDir string) error {
if err := regenGenproto(ctx, genprotoDir, googleapisDir, protoDir); err != nil {
return fmt.Errorf("error generating genproto (may need to check logs for more errors): %v", err)
}
if err := generateGapics(ctx, googleapisDir, protoDir, gocloudDir, genprotoDir); err != nil {
return fmt.Errorf("error generating gapics (may need to check logs for more errors): %v", err)
}
return nil
}
// build attemps to build all packages recursively from the given directory.
func build(dir string) error {
c := command("go", "build", "./...")
c.Stdout = os.Stdout
c.Stderr = os.Stderr
c.Dir = dir
return c.Run()
}
// vet runs linters on all .go files recursively from the given directory.
func vet(dir string) error {
c := command("goimports", "-w", ".")
c.Stdout = os.Stdout
c.Stderr = os.Stderr
c.Dir = dir
if err := c.Run(); err != nil {
return err
}
c = command("gofmt", "-s", "-d", "-w", "-l", ".")
c.Stdout = os.Stdout
c.Stderr = os.Stderr
c.Dir = dir
return c.Run()
}
type cmdWrapper struct {
*exec.Cmd
}
func command(name string, arg ...string) *cmdWrapper {
return &cmdWrapper{exec.Command(name, arg...)}
}
func (cw *cmdWrapper) Run() error {
log.Printf(">>>> %v <<<<", strings.Join(cw.Cmd.Args, " ")) // NOTE: we have some multi-line commands, make it clear where the command starts and ends
return cw.Cmd.Run()
}
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