scripts: ipkg-make-index.sh: dereference symbolic links

Use `stat -L` instead of `ls -l` to follow symbolic links when obtaining
the file size of .ipk archives.

Without this change, the size of the symlink, not the size of the target
file is encoded in the package index file.

Signed-off-by: Jo-Philipp Wich <jo@mein.io>
(cherry picked from commit ece5cab743f9df6c9655d6117e92fda110292173)
Fixes: e6af9c017b0c ("opkg: bump to version 2019-06-14")
[ rmilecki: this has to be backported due to the recent opkg update and
  cb6640381808 ("libopkg: check for file size mismatches") to fix false
  "opkg_install_pkg: Package size mismatch" errors ]
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>

diff --git a/scripts/ipkg-make-index.sh b/scripts/ipkg-make-index.sh
index dcd11ca191adc36d92d6790cb1a1e61a5be36dce..f6f15d7dd8c33969d81d43abed706513e3078b86 100755 (executable)
--- a/scripts/ipkg-make-index.sh
+++ b/scripts/ipkg-make-index.sh
@@ -17,7 +17,7 @@ for pkg in `find $pkg_dir -name '*.ipk' | sort`; do
        [[ "$name" = "kernel" ]] && continue
        [[ "$name" = "libc" ]] && continue
        echo "Generating index for package $pkg" >&2
-       file_size=$(ls -l $pkg | awk '{print $5}')
+       file_size=$(stat -L -c%s $pkg)
        sha256sum=$(mkhash sha256 $pkg)
        # Take pains to make variable value sed-safe
        sed_safe_pkg=`echo $pkg | sed -e 's/^\.\///g' -e 's/\\//\\\\\\//g'`