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main.go
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main.go
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// Copyright 2022 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 main
import (
"context"
"flag"
"fmt"
"os"
"os/signal"
"strings"
"syscall"
"github.com/abcxyz/secure-setup-terraform/pkg/linter"
"github.com/abcxyz/secure-setup-terraform/pkg/version"
)
const lintCommandHelp = `
The "lint" command
EXAMPLES
lint-terraform <file1> <file2> <directory>
FLAGS
`
func main() {
if err := realMain(); err != nil {
fmt.Fprintln(os.Stderr, err.Error())
os.Exit(1)
}
}
func realMain() error {
ctx, done := signal.NotifyContext(context.Background(),
syscall.SIGINT, syscall.SIGTERM)
defer done()
f := flag.NewFlagSet("", flag.ExitOnError)
f.Usage = func() {
fmt.Fprintf(os.Stderr, "%s\n\n", strings.TrimSpace(lintCommandHelp))
f.PrintDefaults()
}
showVersion := f.Bool("version", false, "display version information")
if err := f.Parse(os.Args[1:]); err != nil {
return fmt.Errorf("failed to parse flags: %w", err)
}
if *showVersion {
fmt.Fprintln(os.Stderr, version.HumanVersion)
return nil
}
// The linter needs at least one file or directory
args := f.Args()
if got := len(args); got < 1 {
return fmt.Errorf("expected at least one argument, got %d", got)
}
if err := linter.RunLinter(ctx, args, &linter.TerraformLinter{}); err != nil {
return fmt.Errorf("error running linter %w", err)
}
return nil
}