travis: fix set_repositories_for(), needs sudo

1 files changed, 4 insertions, 4 deletions

diff --git a/.travis/build-pkgs b/.travis/build-pkgs
index 57bbadd9f3..b6ab68a38e 100755
--- a/.travis/build-pkgs
+++ b/.travis/build-pkgs
@@ -38,15 +38,15 @@ changed_abuilds() {
 # $1: the target repository; main, community, or testing
 set_repositories_for() {
         local target_repo="$1"
-        local repos_file='/etc/apk/repositories'
+        local repos=''
 
-        printf '' > $repos_file
         local repo; for repo in main community testing; do
-                printf '%s\n' "$MIRROR_URI/$repo" >> $repos_file
+                repos="$repos $MIRROR_URI/$repo"
                 [ "$repo" = "$target_repo" ] && break
         done
 
-        apk update
+        sudo printf '%s\n' $repos > /etc/apk/repositories
+        sudo apk update
 }