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list.go
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list.go
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// +build go1.9
// Copyright 2018 Microsoft Corporation
//
// 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 cmd
import (
"encoding/json"
"io/ioutil"
"log"
"os"
"path/filepath"
"github.com/Azure/azure-sdk-for-go/tools/profileBuilder/model"
"github.com/spf13/cobra"
)
const (
inputLongName = "input"
inputShortName = "i"
inputDescription = "Specify the input JSON file to read for the list of packages."
)
// listCmd represents the list command
var listCmd = &cobra.Command{
Use: "list",
Short: "Creates a profile from a set of packages.",
Long: `Reads a list of packages from stdin, where each line is treated as a Go package
identifier. These packages are then used to create a profile.
Often, the easiest way of invoking this command will be using a pipe operator
to specify the packages to include.
Example:
$> ../model/testdata/smallProfile.txt > profileBuilder list --name small_profile
`,
Args: cobra.NoArgs,
Run: func(cmd *cobra.Command, args []string) {
logWriter := ioutil.Discard
if verboseFlag {
logWriter = os.Stdout
}
outputLog := log.New(logWriter, "[STATUS] ", 0)
errLog := log.New(os.Stderr, "[ERROR] ", 0)
if !filepath.IsAbs(outputRootDir) {
abs, err := filepath.Abs(outputRootDir)
if err != nil {
errLog.Fatalf("failed to convert to absolute path: %v", err)
}
outputRootDir = abs
}
outputLog.Printf("Output-Location set to: %s", outputRootDir)
inputFile, err := cmd.Flags().GetString(inputLongName)
if err != nil {
errLog.Fatalf("failed to get %s: %v", inputLongName, err)
}
data, err := ioutil.ReadFile(inputFile)
if err != nil {
errLog.Fatalf("failed to read list: %v", err)
}
var listDef model.ListDefinition
err = json.Unmarshal(data, &listDef)
if err != nil {
errLog.Fatalf("failed to unmarshal JSON: %v", err)
}
if clearOutputFlag {
if err := model.DeleteChildDirs(outputRootDir); err != nil {
errLog.Fatalf("Unable to clear output-folder: %v", err)
}
}
model.BuildProfile(listDef, profileName, outputRootDir, outputLog, errLog)
},
}
func init() {
rootCmd.AddCommand(listCmd)
listCmd.Flags().StringP(inputLongName, inputShortName, "", inputDescription)
listCmd.MarkFlagRequired(inputLongName)
}