make check-for-external-updates directly callable

scripts/check-for-external-updates.sh

@@ -3,35 +3,33 @@
 set -eEu
 set -o pipefail  # avoid masking failures in pipes
 
-if [[ -n "$CHECK_EXTERNAL_REPOS" ]];then
-    changes=0
-    latest_commits=(
-        e50e7c959b3ce853635d70585c213fdbf82acee5 # router-pics
-        4d066b22de7ddf8303faeeafabaa4618d9b0b4be # Freifunk-Router-Anleitungen
-        c37521feb4f1e71fe5da0863e1810771f96d9529 # freifunk-device-images
-        0f2479b8dd6ff60b49776464a934a59f32d1e36d # meshviewer-hwimages
-    )
+changes=0
+latest_commits=(
+    e50e7c959b3ce853635d70585c213fdbf82acee5 # router-pics
+    4d066b22de7ddf8303faeeafabaa4618d9b0b4be # Freifunk-Router-Anleitungen
+    c37521feb4f1e71fe5da0863e1810771f96d9529 # freifunk-device-images
+    0f2479b8dd6ff60b49776464a934a59f32d1e36d # meshviewer-hwimages
+)
 
-    for repo in \
-        https://github.com/belzebub40k/router-pics.git \
-        https://github.com/Moorviper/Freifunk-Router-Anleitungen \
-        https://github.com/nalxnet/freifunk-device-images \
-        https://github.com/freifunkstuff/meshviewer-hwimages
-    do
-        last_commit=$(git ls-remote "${repo}" HEAD | awk '{ print $1}')
-        if [[ " ${latest_commits[*]} " == *" ${last_commit} "* ]]; then
-            echo "No changes in repository $repo"
-        else
-            echo "Warning: repository $repo has changes!"
-            changes=$((changes+1))
-        fi
-    done
-
-    if ((changes > 0)); then
-        echo "Warning: $changes changes found".
-        exit 1
+for repo in \
+    https://github.com/belzebub40k/router-pics.git \
+    https://github.com/Moorviper/Freifunk-Router-Anleitungen \
+    https://github.com/nalxnet/freifunk-device-images \
+    https://github.com/freifunkstuff/meshviewer-hwimages
+do
+    last_commit=$(git ls-remote "${repo}" HEAD | awk '{ print $1}')
+    if [[ " ${latest_commits[*]} " == *" ${last_commit} "* ]]; then
+        echo "No changes in repository $repo"
+    else
+        echo "Warning: repository $repo has changes!"
+        changes=$((changes+1))
     fi
+done
 
-    echo "No changes found".
-    exit 0
+if ((changes > 0)); then
+    echo "Warning: $changes changes found".
+    exit 1
 fi
+
+echo "No changes found".
+exit 0