3 files changed, 78 insertions, 12 deletions

diff --git a/internal/utils/tty.go b/internal/utils/tty.go
new file mode 100644
index 0000000..4ac367d
--- /dev/null
+++ b/internal/utils/tty.go
@@ -0,0 +1,19 @@
+package utils
+
+import (
+	"os"
+
+	"golang.org/x/term"
+)
+
+func IsTerminal() bool {
+	return term.IsTerminal(int(os.Stdout.Fd()))
+}
+
+func IsStderrTerminal() bool {
+	return term.IsTerminal(int(os.Stderr.Fd()))
+}
+
+func isTerminal() bool {
+	return IsTerminal()
+}
diff --git a/internal/utils/version.go b/internal/utils/version.go
index 46ebb73..ab72bfb 100644
--- a/internal/utils/version.go
+++ b/internal/utils/version.go
@@ -4,7 +4,9 @@ import (
 	"fmt"
 	"os"
 	"os/exec"
+	"path/filepath"
 	"runtime/debug"
+	"strconv"
 	"strings"
 	"syscall"
 
@@ -83,10 +85,21 @@ func isNewerVersion(remote, local string) bool {
 	localParts := strings.Split(local, ".")
 
 	for i := 0; i < len(remoteParts) && i < len(localParts); i++ {
-		if remoteParts[i] > localParts[i] {
+		r, errR := strconv.Atoi(remoteParts[i])
+		l, errL := strconv.Atoi(localParts[i])
+		if errR != nil || errL != nil {
+			if remoteParts[i] > localParts[i] {
+				return true
+			}
+			if remoteParts[i] < localParts[i] {
+				return false
+			}
+			continue
+		}
+		if r > l {
 			return true
 		}
-		if remoteParts[i] < localParts[i] {
+		if r < l {
 			return false
 		}
 	}
@@ -125,26 +138,36 @@ func promptAndUpdate(newVersion string) {
 	restartSelf()
 }
 
+func resolveInstalledBinary() (string, error) {
+	if gobin := os.Getenv("GOBIN"); gobin != "" {
+		return filepath.Join(gobin, "dborg"), nil
+	}
+
+	gopath := os.Getenv("GOPATH")
+	if gopath == "" {
+		out, err := exec.Command("go", "env", "GOPATH").Output()
+		if err != nil {
+			return "", fmt.Errorf("could not determine GOPATH: %w", err)
+		}
+		gopath = strings.TrimSpace(string(out))
+	}
+
+	return filepath.Join(gopath, "bin", "dborg"), nil
+}
+
 func restartSelf() {
-	executable, err := os.Executable()
+	newBinary, err := resolveInstalledBinary()
 	if err != nil {
-		fmt.Fprintf(os.Stderr, "Failed to get executable path: %v\n", err)
+		fmt.Fprintf(os.Stderr, "Failed to locate installed binary: %v\n", err)
 		os.Exit(1)
 	}
 
 	args := os.Args[1:]
 
-	err = syscall.Exec(executable, append([]string{executable}, args...), os.Environ())
+	err = syscall.Exec(newBinary, append([]string{newBinary}, args...), os.Environ())
 	if err != nil {
 		fmt.Fprintf(os.Stderr, "Failed to restart: %v\n", err)
 		os.Exit(1)
 	}
 }
 
-func isTerminal() bool {
-	fileInfo, err := os.Stdout.Stat()
-	if err != nil {
-		return false
-	}
-	return (fileInfo.Mode() & os.ModeCharDevice) != 0
-}
diff --git a/internal/utils/version_test.go b/internal/utils/version_test.go
index e3a27b1..9db181a 100644
--- a/internal/utils/version_test.go
+++ b/internal/utils/version_test.go
@@ -72,6 +72,30 @@ func TestIsNewerVersion(t *testing.T) {
 			local:    "v0.5.0",
 			expected: true,
 		},
+		{
+			name:     "double digit patch newer",
+			remote:   "v1.0.12",
+			local:    "v1.0.9",
+			expected: true,
+		},
+		{
+			name:     "double digit patch older",
+			remote:   "v1.0.9",
+			local:    "v1.0.12",
+			expected: false,
+		},
+		{
+			name:     "double digit patch same",
+			remote:   "v1.0.12",
+			local:    "v1.0.12",
+			expected: false,
+		},
+		{
+			name:     "double digit minor newer",
+			remote:   "v1.10.0",
+			local:    "v1.9.0",
+			expected: true,
+		},
 	}
 
 	for _, tt := range tests {