filelist/osksdl: add new implementation

internal/filelist/osksdl/osksdl.go

@@ -0,0 +1,137 @@
+package osksdl
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"gitlab.com/postmarketOS/postmarketos-mkinitfs/internal/misc"
+)
+
+type OskSdl struct {
+	mesaDriver string
+}
+
+// New returns a new HookScripts that will use the given path to provide a list
+// of script files.
+func New(mesaDriverName string) *OskSdl {
+	return &OskSdl{
+		mesaDriver: mesaDriverName,
+	}
+}
+
+// Get a list of files and their dependencies related to supporting rootfs full
+// disk (d)encryption
+func (s *OskSdl) List() ([]string, error) {
+	if !misc.Exists("/usr/bin/osk-sdl") {
+		return nil, nil
+	}
+
+	confFiles := []string{
+		"/etc/osk.conf",
+		"/etc/ts.conf",
+		"/etc/pointercal",
+		"/etc/fb.modes",
+		"/etc/directfbrc",
+	}
+	files, err := misc.GetFiles(confFiles, false)
+	if err != nil {
+		return nil, fmt.Errorf("getFdeFiles: failed to add files: %w", err)
+	}
+
+	// osk-sdl
+	oskFiles := []string{
+		"/usr/bin/osk-sdl",
+		"/sbin/cryptsetup",
+		"/usr/lib/libGL.so.1",
+	}
+	if filelist, err := misc.GetFiles(oskFiles, true); err != nil {
+		return nil, fmt.Errorf("getFdeFiles: failed to add files: %w", err)
+	} else {
+		files = append(files, filelist...)
+	}
+
+	fontFile, err := getOskConfFontPath("/etc/osk.conf")
+	if err != nil {
+		return nil, fmt.Errorf("getFdeFiles: failed to add file %q: %w", fontFile, err)
+	}
+	files = append(files, fontFile)
+
+	// Directfb
+	dfbFiles := []string{}
+	err = filepath.Walk("/usr/lib/directfb-1.7-7", func(path string, f os.FileInfo, err error) error {
+		if filepath.Ext(path) == ".so" {
+			dfbFiles = append(dfbFiles, path)
+		}
+		return nil
+	})
+	if err != nil {
+		return nil, fmt.Errorf("getFdeFiles: failed to add file %w", err)
+	}
+	if filelist, err := misc.GetFiles(dfbFiles, true); err != nil {
+		return nil, fmt.Errorf("getFdeFiles: failed to add files: %w", err)
+	} else {
+		files = append(files, filelist...)
+	}
+
+	// tslib
+	tslibFiles := []string{}
+	err = filepath.Walk("/usr/lib/ts", func(path string, f os.FileInfo, err error) error {
+		if filepath.Ext(path) == ".so" {
+			tslibFiles = append(tslibFiles, path)
+		}
+		return nil
+	})
+	if err != nil {
+		return nil, fmt.Errorf("getFdeFiles: failed to add file: %w", err)
+	}
+	libts, _ := filepath.Glob("/usr/lib/libts*")
+	tslibFiles = append(tslibFiles, libts...)
+	if filelist, err := misc.GetFiles(tslibFiles, true); err != nil {
+		return nil, fmt.Errorf("getFdeFiles: failed to add files: %w", err)
+	} else {
+		files = append(files, filelist...)
+	}
+
+	// mesa hw accel
+	if s.mesaDriver != "" {
+		mesaFiles := []string{
+			"/usr/lib/libEGL.so.1",
+			"/usr/lib/libGLESv2.so.2",
+			"/usr/lib/libgbm.so.1",
+			"/usr/lib/libudev.so.1",
+			"/usr/lib/xorg/modules/dri/" + s.mesaDriver + "_dri.so",
+		}
+		if filelist, err := misc.GetFiles(mesaFiles, true); err != nil {
+			return nil, fmt.Errorf("getFdeFiles: failed to add files: %w", err)
+		} else {
+			files = append(files, filelist...)
+		}
+	}
+
+	return files, nil
+}
+
+func getOskConfFontPath(oskConfPath string) (string, error) {
+	var path string
+	f, err := os.Open(oskConfPath)
+	if err != nil {
+		return path, err
+	}
+	defer f.Close()
+	s := bufio.NewScanner(f)
+	for s.Scan() {
+		fields := strings.Fields(s.Text())
+		// "key = val" is 3 fields
+		if len(fields) > 2 && fields[0] == "keyboard-font" {
+			path = fields[2]
+		}
+	}
+	if !misc.Exists(path) {
+		return path, errors.New("Unable to find font: " + path)
+	}
+
+	return path, nil
+}