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print.go
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print.go
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/*
* Copyright 2022 Aspect Build Systems, Inc.
*
* 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 print
import (
"bytes"
"context"
"fmt"
"strings"
"github.com/spf13/cobra"
"aspect.build/cli/pkg/ioutils"
"github.com/bazelbuild/buildtools/edit"
)
type Print struct {
ioutils.Streams
}
func New(streams ioutils.Streams) *Print {
return &Print{
Streams: streams,
}
}
func (runner *Print) Run(ctx context.Context, cmd *cobra.Command, args []string) error {
var stdout bytes.Buffer
var stderr strings.Builder
opts := &edit.Options{
OutWriter: &stdout,
ErrWriter: &stderr,
NumIO: 200,
}
outputs, err := cmd.Flags().GetStringSlice("output")
if err != nil {
return fmt.Errorf("cannot parse output flag: %w", err)
}
if ret := edit.Buildozer(opts, append([]string{"print " + strings.Join(outputs, " ")}, args...)); ret != 0 {
return fmt.Errorf("buildozer exit %d: %s", ret, stderr.String())
}
// TODO: print to runner.Streams stdout
fmt.Print(stdout.String())
return nil
}