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csv.go
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csv.go
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// Copyright 2019 Google Inc. All Rights Reserved.
//
// 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"
"encoding/csv"
"os"
"github.com/golang/glog"
"github.com/google/go-licenses/licenses"
"github.com/spf13/cobra"
)
var (
csvHelp = "Prints all licenses that apply to one or more Go packages and their dependencies."
csvCmd = &cobra.Command{
Use: "csv <package> [package...]",
Short: csvHelp,
Long: csvHelp + packageHelp,
Args: cobra.MinimumNArgs(1),
RunE: csvMain,
}
gitRemotes []string
)
func init() {
csvCmd.Flags().StringArrayVar(&gitRemotes, "git_remote", []string{"origin", "upstream"}, "Remote Git repositories to try")
rootCmd.AddCommand(csvCmd)
}
func csvMain(_ *cobra.Command, args []string) error {
writer := csv.NewWriter(os.Stdout)
classifier, err := licenses.NewClassifier(confidenceThreshold)
if err != nil {
return err
}
libs, err := licenses.Libraries(context.Background(), classifier, ignore, args...)
if err != nil {
return err
}
for _, lib := range libs {
licenseURL := "Unknown"
licenseName := "Unknown"
if lib.LicensePath != "" {
name, _, err := classifier.Identify(lib.LicensePath)
if err == nil {
licenseName = name
} else {
glog.Errorf("Error identifying license in %q: %v", lib.LicensePath, err)
}
url, err := lib.FileURL(context.Background(), lib.LicensePath)
if err == nil {
licenseURL = url
} else {
glog.Warningf("Error discovering license URL: %s", err)
}
}
if err := writer.Write([]string{lib.Name(), licenseURL, licenseName}); err != nil {
return err
}
}
writer.Flush()
return writer.Error()
}