internal: Improve error message consistency

internal/execx/compose.go

@@ -1,11 +0,0 @@
-package execx
-
-import (
-	"github.com/tkw1536/goprogram/stream"
-)
-
-// Compose runs a docker-compose command in a specific directory, with the provided arguments and streams.
-// It then waits for the process to exit, and returns the exit code.
-func Compose(io stream.IOStream, workdir string, args ...string) int {
-	return Exec(io, workdir, "docker", append([]string{"compose"}, args...)...)
-}

internal/execx/look.go

@@ -0,0 +1,15 @@
+package execx
+
+import (
+	"os/exec"
+	"path/filepath"
+)
+
+// LookPathAbs is like [exec.LookPath], but always returns an absolute path
+func LookPathAbs(file string) (string, error) {
+	path, err := exec.LookPath(file)
+	if err != nil {
+		return "", err
+	}
+	return filepath.Abs(path)
+}