package config
import (
+ "bytes"
"fmt"
"io"
+ "io/ioutil"
+ "os"
+ "os/exec"
"git.curoverse.com/arvados.git/lib/cmd"
"git.curoverse.com/arvados.git/sdk/go/ctxlog"
}
return 0
}
+
+var CheckCommand cmd.Handler = checkCommand{}
+
+type checkCommand struct{}
+
+func (checkCommand) RunCommand(prog string, args []string, stdin io.Reader, stdout, stderr io.Writer) int {
+ var err error
+ defer func() {
+ if err != nil {
+ fmt.Fprintf(stderr, "%s\n", err)
+ }
+ }()
+ if len(args) != 0 {
+ err = fmt.Errorf("usage: %s <config-src.yaml && echo 'no changes needed'", prog)
+ return 2
+ }
+ log := &plainLogger{w: stderr}
+ buf, err := ioutil.ReadAll(stdin)
+ if err != nil {
+ return 1
+ }
+ withoutDepr, err := load(bytes.NewBuffer(buf), log, false)
+ if err != nil {
+ return 1
+ }
+ withDepr, err := load(bytes.NewBuffer(buf), nil, true)
+ if err != nil {
+ return 1
+ }
+ cmd := exec.Command("diff", "-u", "--label", "without-deprecated-configs", "--label", "relying-on-deprecated-configs", "/dev/fd/3", "/dev/fd/4")
+ for _, obj := range []interface{}{withoutDepr, withDepr} {
+ y, _ := yaml.Marshal(obj)
+ pr, pw, err := os.Pipe()
+ if err != nil {
+ return 1
+ }
+ defer pr.Close()
+ go func() {
+ io.Copy(pw, bytes.NewBuffer(y))
+ pw.Close()
+ }()
+ cmd.ExtraFiles = append(cmd.ExtraFiles, pr)
+ }
+ diff, err := cmd.CombinedOutput()
+ if bytes.HasPrefix(diff, []byte("--- ")) {
+ fmt.Fprintln(stdout, "Your configuration is relying on deprecated entries. Suggest making the following changes.")
+ stdout.Write(diff)
+ return 1
+ } else if len(diff) > 0 {
+ fmt.Fprintf(stderr, "Unexpected diff output:\n%s", diff)
+ return 1
+ } else if err != nil {
+ return 1
+ }
+ if log.used {
+ return 1
+ }
+ return 0
+}
+
+type plainLogger struct {
+ w io.Writer
+ used bool
+}
+
+func (pl *plainLogger) Warnf(format string, args ...interface{}) {
+ pl.used = true
+ fmt.Fprintf(pl.w, format+"\n", args...)
+}