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Maint: split out OpenVPN version functions to openvpn/config/version.go

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This commit is contained in:
Quentin McGaw (desktop)
2021-08-18 20:46:20 +00:00
parent 7a1d0ff3ec
commit 9e5400f52d
2 changed files with 39 additions and 31 deletions
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31
internal/openvpn/config/command.go
View File

@@ -5,7 +5,6 @@ import (
"errors" "errors"
"fmt" "fmt"
"os/exec" "os/exec"
"strings"
"syscall" "syscall"
"github.com/qdm12/gluetun/internal/constants" "github.com/qdm12/gluetun/internal/constants"
@@ -44,33 +43,3 @@ func (c *Configurator) Start(ctx context.Context, version string, flags []string
return c.cmder.Start(cmd) return c.cmder.Start(cmd)
} }
type VersionGetter interface {
Version24(ctx context.Context) (version string, err error)
Version25(ctx context.Context) (version string, err error)
}
func (c *Configurator) Version24(ctx context.Context) (version string, err error) {
return c.version(ctx, binOpenvpn24)
}
func (c *Configurator) Version25(ctx context.Context) (version string, err error) {
return c.version(ctx, binOpenvpn25)
}
var ErrVersionTooShort = errors.New("version output is too short")
func (c *Configurator) version(ctx context.Context, binName string) (version string, err error) {
cmd := exec.CommandContext(ctx, binName, "--version")
output, err := c.cmder.Run(cmd)
if err != nil && err.Error() != "exit status 1" {
return "", err
}
firstLine := strings.Split(output, "\n")[0]
words := strings.Fields(firstLine)
const minWords = 2
if len(words) < minWords {
return "", fmt.Errorf("%w: %s", ErrVersionTooShort, firstLine)
}
return words[1], nil
}

39
internal/openvpn/config/version.go Normal file
View File

@@ -0,0 +1,39 @@
package config
import (
"context"
"errors"
"fmt"
"os/exec"
"strings"
)
type VersionGetter interface {
Version24(ctx context.Context) (version string, err error)
Version25(ctx context.Context) (version string, err error)
}
func (c *Configurator) Version24(ctx context.Context) (version string, err error) {
return c.version(ctx, binOpenvpn24)
}
func (c *Configurator) Version25(ctx context.Context) (version string, err error) {
return c.version(ctx, binOpenvpn25)
}
var ErrVersionTooShort = errors.New("version output is too short")
func (c *Configurator) version(ctx context.Context, binName string) (version string, err error) {
cmd := exec.CommandContext(ctx, binName, "--version")
output, err := c.cmder.Run(cmd)
if err != nil && err.Error() != "exit status 1" {
return "", err
}
firstLine := strings.Split(output, "\n")[0]
words := strings.Fields(firstLine)
const minWords = 2
if len(words) < minWords {
return "", fmt.Errorf("%w: %s", ErrVersionTooShort, firstLine)
}
return words[1], nil
}