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@protonmail.com>
Link: https://github.com/openwrt/openwrt/pull/21993
Signed-off-by: Robert Marko <robimarko@gmail.com>
(cherry picked from commit fcb07b00ec22b90fc0cd790701982018ee345366)

diff --git a/package/Makefile b/package/Makefile
index 097ee17151ba8455baacdbad3bf4aaf6af63f5b6..bcf0a21bb4a46c4165585f3e416531dd8b601e03 100644 (file)
--- 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; \