replace password cmd with go-bits implementation

go.mod

@@ -7,6 +7,7 @@ require (
 	github.com/gophercloud/utils v0.0.0-20231010081019-80377eca5d56
 	github.com/olekukonko/tablewriter v0.0.5
 	github.com/sapcc/go-api-declarations v1.10.5
+	github.com/sapcc/go-bits v0.0.0-20231213211425-ddd5e41f8535
 	github.com/sapcc/gophercloud-sapcc v0.0.0-20231214091214-e4517ca1b6a4
 	github.com/spf13/cobra v1.8.0
 )

go.sum

@@ -17,8 +17,12 @@ github.com/olekukonko/tablewriter v0.0.5/go.mod h1:hPp6KlRPjbx+hW8ykQs1w3UBbZlj6
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
 github.com/sapcc/go-api-declarations v1.10.5 h1:1jGXudH2kcS0JCfGqooHszhSIe7BCvqu7QYJdqfas0A=
 github.com/sapcc/go-api-declarations v1.10.5/go.mod h1:83R3hTANhuRXt/pXDby37IJetw8l7DG41s33Tp9NXxI=
+github.com/sapcc/go-bits v0.0.0-20231213211425-ddd5e41f8535 h1:spliyqfKEO+098p/TBNjNIhXoyCqj1Zf+pROsaoN9SQ=
+github.com/sapcc/go-bits v0.0.0-20231213211425-ddd5e41f8535/go.mod h1:jsn7K60WbjIzXz5V38eeHP2SNsBsCpFOtbXOSsBZXoQ=
 github.com/sapcc/gophercloud-sapcc v0.0.0-20231214091214-e4517ca1b6a4 h1:bPzqErdlvFN8KkZorXj0Js2bIMrSAt5oGdo65ncjnSM=
 github.com/sapcc/gophercloud-sapcc v0.0.0-20231214091214-e4517ca1b6a4/go.mod h1:W7BMHKOIhBMtBOqCDBT4APx7A48q7wt9i0jPB0PDXLs=
+github.com/sergi/go-diff v1.3.1 h1:xkr+Oxo4BOQKmkn/B9eMK0g5Kg/983T9DqqPHwYqD+8=
+github.com/sergi/go-diff v1.3.1/go.mod h1:aMJSSKb2lpPvRNec0+w3fl7LP9IOFzdc9Pa4NFbPK1I=
 github.com/spf13/cobra v1.8.0 h1:7aJaZx1B85qltLMc546zn58BxxfZdR/W22ej9CFoEf0=
 github.com/spf13/cobra v1.8.0/go.mod h1:WXLWApfZ71AjXPya3WOlMsY9yMs7YeiHhFVlvLyhcho=
 github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=

internal/cmd/root.go

@@ -19,13 +19,12 @@ import (
 	"fmt"
 	"net/http"
 	"os"
-	"os/exec"
-	"strings"
 
 	"github.com/gophercloud/gophercloud"
 	"github.com/gophercloud/gophercloud/openstack"
 	"github.com/gophercloud/utils/client"
 	"github.com/gophercloud/utils/openstack/clientconfig"
+	"github.com/sapcc/go-bits/secrets"
 	"github.com/sapcc/gophercloud-sapcc/clients"
 	"github.com/spf13/cobra"
 
@@ -109,14 +108,8 @@ func authenticate() (*gophercloud.ProviderClient, error) {
 	// Update OpenStack environment variables, if value(s) provided as flag.
 	updateOpenStackEnvVars()
 
-	pwCmd := os.Getenv("OS_PW_CMD")
-	if pwCmd != "" && os.Getenv("OS_PASSWORD") == "" {
-		// Retrieve user's password from external command.
-		out, err := exec.Command("sh", "-c", pwCmd).Output()
-		if err != nil {
-			return nil, util.WrapError(err, fmt.Sprintf("could not retrieve user password using: %s", pwCmd))
-		}
-		setenvIfVal("OS_PASSWORD", strings.TrimSuffix(string(out), "\n"))
+	if err := secrets.GetPasswordFromCommandIfRequested(); err != nil {
+		return nil, err
 	}
 	ao, err := clientconfig.AuthOptions(nil)
 	if err != nil {

vendor/modules.txt

@@ -41,6 +41,11 @@ github.com/sapcc/go-api-declarations/internal/marshal
 github.com/sapcc/go-api-declarations/limes
 github.com/sapcc/go-api-declarations/limes/rates
 github.com/sapcc/go-api-declarations/limes/resources
+# github.com/sapcc/go-bits v0.0.0-20231213211425-ddd5e41f8535
+## explicit; go 1.21
+github.com/sapcc/go-bits/logg
+github.com/sapcc/go-bits/osext
+github.com/sapcc/go-bits/secrets
 # github.com/sapcc/gophercloud-sapcc v0.0.0-20231214091214-e4517ca1b6a4
 ## explicit; go 1.21
 github.com/sapcc/gophercloud-sapcc/clients