[PATCH v2] installer-add-rootfs: wait for full target image build via do_build

["'Gourav Singh' via isar-users" <isar-users@googlegroups.com>]

Previously, the installer depended only on do_image_<type>, which was
derived from IMAGE_DATA_POSTFIX (e.g. do_image_wic for wic.zst). This
created a hidden ordering assumption that the image type being installed
was also the last artifact to be built.

This assumption breaks silently when target images include additional
build steps that run after the wic image, such as swupdate (.swu)
generation. In that case, the installer would start before all artifacts
were ready, missing files like the .swu image entirely.

Replace the derived do_image_<type> dependency with do_build, which is
the natural synchronization point signaling that a recipe is fully done.
This guarantees the installer only starts after all target image
artifacts are produced, regardless of which features are enabled.

As a result, the get_image_type() helper function is no longer needed
and is removed.

Fixes: a7364ea ("installer-add-rootfs: build target image for image data postfix")

Signed-off-by: Gourav Singh <gouravsingh@siemens.com>
---
 meta-isar/classes-recipe/installer-add-rootfs.bbclass | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/meta-isar/classes-recipe/installer-add-rootfs.bbclass b/meta-isar/classes-recipe/installer-add-rootfs.bbclass
index 69d87be8..111506df 100644
--- a/meta-isar/classes-recipe/installer-add-rootfs.bbclass
+++ b/meta-isar/classes-recipe/installer-add-rootfs.bbclass
@@ -56,10 +56,6 @@ def get_mc_depends(d, task):
         deps.append(f"mc:{installer_mc}:{installer_target_mc}:{image}:{task}")
     return " ".join(deps)

-def get_image_type(suffix):
-    image_type = suffix.split(".")[0]
-    return f"{image_type}"
-
 python() {
     entries = []

@@ -80,5 +76,5 @@ python() {
     d.setVar("ROOTFS_ADDITIONAL_FILES", " ".join(entries))
 }

-INSTALLER_TARGET_TASK ??="do_image_${@ get_image_type(d.getVar('IMAGE_DATA_POSTFIX'))}"
+INSTALLER_TARGET_TASK ??="do_build"
 do_rootfs_install[mcdepends] += "${@ get_mc_depends(d, d.getVar('INSTALLER_TARGET_TASK'))}"
--
2.39.5

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