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package executable
import (
"os"
"path/filepath"
)
const (
GitlabShell = "gitlab-shell"
AuthorizedKeysCheck = "gitlab-shell-authorized-keys-check"
AuthorizedPrincipalsCheck = "gitlab-shell-authorized-principals-check"
)
type Executable struct {
Name string
RootDir string
}
var (
// osExecutable is overridden in tests
osExecutable = os.Executable
)
func New() (*Executable, error) {
path, err := osExecutable()
if err != nil {
return nil, err
}
rootDir, err := findRootDir(path)
if err != nil {
return nil, err
}
executable := &Executable{
Name: filepath.Base(path),
RootDir: rootDir,
}
return executable, nil
}
func findRootDir(path string) (string, error) {
// Start: /opt/.../gitlab-shell/bin/gitlab-shell
// Ends: /opt/.../gitlab-shell
rootDir := filepath.Dir(filepath.Dir(path))
pathFromEnv := os.Getenv("GITLAB_SHELL_DIR")
if pathFromEnv != "" {
if _, err := os.Stat(pathFromEnv); os.IsNotExist(err) {
return "", err
}
rootDir = pathFromEnv
}
return rootDir, nil
}
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