generate systemd: quote arguments with whitespace

Make sure that arguments with whitespace are properly quoted so they are
interpreted as one (and not multiple ones) by systemd.

Now `-e tz="america/new york"` will be generated as `-e "tz=america/new york"`.
The quotes are moving but the argument is still correct.

Fixes: #7285
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>

1 files changed, 13 insertions, 0 deletions

diff --git a/pkg/systemd/generate/common.go b/pkg/systemd/generate/common.go
index d6d18a810..1fc4479ff 100644
--- a/pkg/systemd/generate/common.go
+++ b/pkg/systemd/generate/common.go
@@ -1,6 +1,7 @@
 package generate
 
 import (
+	"strconv"
 	"strings"
 
 	"github.com/pkg/errors"
@@ -53,3 +54,15 @@ func filterPodFlags(command []string) []string {
 	}
 	return processed
 }
+
+// quoteArguments makes sure that all arguments with at least one whitespace
+// are quoted to make sure those are interpreted as one argument instead of
+// multiple ones.
+func quoteArguments(command []string) []string {
+	for i := range command {
+		if strings.ContainsAny(command[i], " \t") {
+			command[i] = strconv.Quote(command[i])
+		}
+	}
+	return command
+}