73 lines
2.0 KiB
Go
73 lines
2.0 KiB
Go
// Copyright 2019 The gVisor Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// go_marshal is a code generation utility for automatically generating code to
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// marshal go data structures to memory.
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//
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// This binary is typically run as part of the build process, and is invoked by
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// the go_marshal bazel rule defined in defs.bzl.
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//
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// See README.md.
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package main
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import (
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"flag"
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"fmt"
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"os"
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"strings"
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"gvisor.dev/gvisor/tools/go_marshal/gomarshal"
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)
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var (
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pkg = flag.String("pkg", "", "output package")
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output = flag.String("output", "", "output file")
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outputTest = flag.String("output_test", "", "output file for tests")
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imports = flag.String("imports", "", "comma-separated list of extra packages to import in generated code")
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)
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func main() {
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flag.Usage = func() {
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fmt.Fprintf(os.Stderr, "Usage: %s <input go src files>\n", os.Args[0])
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flag.PrintDefaults()
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}
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flag.Parse()
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if len(flag.Args()) == 0 {
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flag.Usage()
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os.Exit(1)
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}
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if *pkg == "" {
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flag.Usage()
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fmt.Fprint(os.Stderr, "Flag -pkg must be provided.\n")
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os.Exit(1)
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}
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var extraImports []string
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if len(*imports) > 0 {
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// Note: strings.Split(s, sep) returns s if sep doesn't exist in s. Thus
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// we check for an empty imports list to avoid emitting an empty string
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// as an import.
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extraImports = strings.Split(*imports, ",")
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}
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g, err := gomarshal.NewGenerator(flag.Args(), *output, *outputTest, *pkg, extraImports)
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if err != nil {
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panic(err)
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}
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if err := g.Run(); err != nil {
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panic(err)
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}
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}
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