[ptxdist] [PATCH v2] rauc: select on-target tools depending on bootloader

[Andreas Pretzsch <apr@cn-eng.de>]

RAUC relies on tools on the target to interact with the bootloader.
As the bootloader selection is not part of ptxconfig, but platformconfig,
have the user select the bootloader used on the target.
Based on this, auto-select the appropriate package:
  barebox: dt-utils (barebox-state)
  U-Boot: u-boot-tools (fw_printenv, fw_setenv)
  EFI: efibootmgr (efibootmgr)

Regarding GRUB support, grub-editenv from GRUB2 is required. Currently,
there is no "GRUB2" package in ptxdist, so no active option for it.

Signed-off-by: Andreas Pretzsch <apr@cn-eng.de>
---
Changes v1->v2:
  - add "if RUNTIME", as these are runtime dependencies
  - reorder down to the other runtime dependencies
  - omit RAUC_GRUB (no GRUB2 in ptxdist), but keep as comment
  - do not use choice, but single selections

Reason for single selections: Beside possible use cases where no specific
bootloader support at all is desired, symbols might be used later for other
decisions, even with multi-bootloader support.

 rules/rauc.in | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/rules/rauc.in b/rules/rauc.in
index 213a1211e..3c5f64b00 100644
--- a/rules/rauc.in
+++ b/rules/rauc.in
@@ -14,6 +14,10 @@ menuconfig RAUC
 	select JSON_GLIB			if RAUC_JSON
 	select SQUASHFS_TOOLS			if RUNTIME
 	select SQUASHFS_TOOLS_UNSQUASHFS	if RUNTIME
+	select DT_UTILS				if RUNTIME && RAUC_BAREBOX
+	select U_BOOT_TOOLS			if RUNTIME && RAUC_U_BOOT
+	#select GRUB2				if RUNTIME && RAUC_GRUB
+	select EFIBOOTMGR			if RUNTIME && RAUC_EFI
 	help
 	  Robust Auto-Update Controller. RAUC controls the update process on embedded linux systems.
 
@@ -78,4 +82,29 @@ config RAUC_BUNDLE_VERSION
 
 endif
 
+config RAUC_BAREBOX
+	bool "barebox support"
+	help
+	  To interact with barebox, barebox-state from dt-utils is used.
+	  Auto-select this package for installation on the target.
+config RAUC_U_BOOT
+	bool "U-Boot support"
+	help
+	  To interact with U-Boot, fw_printenv and fw_setenv from
+	  u-boot-tools are used.
+	  Auto-select this package for installation on the target.
+# Currently, there is no "GRUB2" package in ptxdist. Even with depends
+# on BROKEN, ptxdist will complain about undefined symbol GRUB2.
+# Still, keep this as reference, to have a complete bootloader list.
+#config RAUC_GRUB
+#	bool "GRUB support"
+#	help
+#	  To interact with GRUB2, grub-editenv from grub is used.
+#	  Auto-select this package for installation on the target.
+config RAUC_EFI
+	bool "EFI support"
+	help
+	  To interact with EFI, efibootmgr from efibootmgr is used.
+	  Auto-select this package for installation on the target.
+
 endif
-- 
2.19.1


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