Change file check to also check file size (-f => -s)

Because the `fetch` wget wrapper outputs files to stdout we may end up in a
situation where wget fails but the files are still created. This can happen
e.g. when the host date is out of sync leading to a failed certificate
check, resulting in the creation of empty key files.

Once the empty files have been created the template will try to use them which
causes the certificate check to fail.

By using `-s` instead of `-f` the template will re-fetch the files unless they
exist AND have a size greater than zero.

Signed-off-by: Rune Juhl Jacobsen <runejuhl@petardo.dk>
This commit is contained in:
Rune Juhl Jacobsen 2017-09-18 19:56:42 +02:00
parent 89dd4bff65
commit fc20af631e
No known key found for this signature in database
GPG Key ID: BBD52EE014FD0F92

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@ -185,7 +185,7 @@ fetch_apk_keys() {
echo "$APK_KEYS_SHA256" | while read -r line; do
keyname="${line##* }"
if [ ! -f "$keyname" ]; then
if [ ! -s "$keyname" ]; then
fetch "$APK_KEYS_URI/$keyname" > "$keyname"
fi
echo "$line" | sha256sum -c -
@ -210,7 +210,7 @@ fetch_apk_static() {
fetch "$MIRROR_URL/latest-stable/main/$arch/${pkg_name}-${pkg_ver}.apk" \
| tar -xz -C "$dest" sbin/ # --extract --gzip --directory
[ -f "$dest/sbin/apk.static" ] || die 2 'apk.static not found'
[ -s "$dest/sbin/apk.static" ] || die 2 'apk.static not found'
local keyname=$(echo "$dest"/sbin/apk.static.*.pub | sed 's/.*\.SIGN\.RSA\.//')
openssl dgst -sha1 \