mirror of
https://github.com/kubernetes-sigs/kustomize.git
synced 2026-05-18 05:15:19 +00:00
6fd0330b80
Enable varcheck and fix found issues Add ineffassign to list of checks and fix found issues Added nakedret and fixed found issues Add interfacer check and fix found issue Add lll and fix found issues Add deadcode linter, remove unused code
59 lines
1.5 KiB
Go
59 lines
1.5 KiB
Go
/*
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Copyright 2018 The Kubernetes Authors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package diff
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import (
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"io"
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"os"
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"github.com/kubernetes-sigs/kustomize/pkg/exec"
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)
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// program wraps the system diff program.
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// If specified, the value of KUBERNETES_EXTERNAL_DIFF environment variable
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// will be used instead of simply `diff(1)`.
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type program struct {
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stdout io.Writer
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stderr io.Writer
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}
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func newProgram(out, errOut io.Writer) *program {
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return &program{
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stdout: out,
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stderr: errOut,
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}
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}
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func (d *program) makeCommand(args ...string) exec.Cmd {
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diff := "diff"
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if envDiff := os.Getenv("KUBERNETES_EXTERNAL_DIFF"); envDiff != "" {
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diff = envDiff
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} else {
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args = append([]string{"-u", "-N"}, args...)
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}
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cmd := exec.New().Command(diff, args...)
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cmd.SetStdout(d.stdout)
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cmd.SetStderr(d.stderr)
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return cmd
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}
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// run runs the detected diff program. `from` and `to` are the directory to diff.
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func (d *program) run(from, to string) error {
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d.makeCommand(from, to).Run() // Ignore diff return code
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return nil
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}
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