[openwrt/openwrt] build: propagate errors when generating apk indexes

[LEDE Commits]

robimarko pushed a commit to openwrt/openwrt.git, branch openwrt-25.12:
https://git.openwrt.org/bffedc5784a44415152cf59fc180ebced4ac400f

commit bffedc5784a44415152cf59fc180ebced4ac400f
Author: Matt Merhar <mattmerhar at protonmail.com>
AuthorDate: Wed Feb 11 14:33:15 2026 -0500

    build: propagate errors when generating apk indexes
    
    The build would continue even if the some of the intermediate commands
    failed, as long as the last command in the final iteration of the loop
    was successful.
    
    Add 'set -e' to the subshell so that we immediately exit. Previously,
    only the exit status of the final make-index-json.py mattered.
    
    Fixes: https://github.com/openwrt/openwrt/issues/21981
    Signed-off-by: Matt Merhar <mattmerhar at protonmail.com>
    Link: https://github.com/openwrt/openwrt/pull/21993
    Signed-off-by: Robert Marko <robimarko at gmail.com>
    (cherry picked from commit fcb07b00ec22b90fc0cd790701982018ee345366)
---
 package/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/package/Makefile b/package/Makefile
index 097ee17151..bcf0a21bb4 100644
--- a/package/Makefile
+++ b/package/Makefile
@@ -129,6 +129,7 @@ $(curdir)/index: FORCE
 	@echo Generating package index...
 ifneq ($(CONFIG_USE_APK),)
 	@for d in $(PACKAGE_SUBDIRS); do \
+		set -e; \
 		mkdir -p $$d; \
 		cd $$d || continue; \
 		ls *.apk >/dev/null 2>&1 || continue; \