enh: install.inc: try harder to hit GitHub API in CI

lib/shell/install.inc

@@ -54,37 +54,50 @@ set_download_url() {
     # shellcheck disable=SC2064
     trap "rm -f $payload" EXIT
 
-    _apicall "$RELEASE_API_URL" > "$payload"
-    if command -v jq >/dev/null; then
-        # If we have jq, we can do it properly
-        urls="$(jq -r '.[0].assets|.[]|.browser_download_url' < "$payload")"
-    elif perl -MJSON -e 1 2>/dev/null; then
-        # If we don't, there's a good chance we have Perl with the JSON module, use it
-        urls="$(perl -MJSON -e 'undef $/; $d=decode_json(<>); exit if ref $d ne "ARRAY"; foreach(@{ $d->[0]{assets} || [] }) { print $_->{browser_download_url}."\n" }' "$payload")"
-    else
-        # Otherwise, go the ugly way, don't bother the user in installing jq just for this need
-        urls="$(grep -Eo 'https://[a-z0-9./_-]+' "$payload")"
-    fi
-
-    url="$(echo "$urls" | grep -E "$pattern" | head -n1)"
+    maxtries=60
+    for try in $(seq 1 $maxtries); do
+        _apicall "$RELEASE_API_URL" > "$payload"
+        if command -v jq >/dev/null; then
+            # If we have jq, we can do it properly
+            urls="$(jq -r '.[0].assets|.[]|.browser_download_url' < "$payload")"
+        elif perl -MJSON -e 1 2>/dev/null; then
+            # If we don't, there's a good chance we have Perl with the JSON module, use it
+            urls="$(perl -MJSON -e 'undef $/; $d=decode_json(<>); exit if ref $d ne "ARRAY"; foreach(@{ $d->[0]{assets} || [] }) { print $_->{browser_download_url}."\n" }' "$payload")"
+        else
+            # Otherwise, go the ugly way, don't bother the user in installing jq just for this need
+            urls="$(grep -Eo 'https://[a-z0-9./_-]+' "$payload")"
+        fi
 
-    if [ -n "$url" ]; then
-        action_detail "$url"
-    elif [ ! -s "$payload" ]; then
-        action_error "API returned an empty body, did we hit the query limit?"
-        exit 1
-    elif [ -z "$urls" ]; then
-        action_error "Couldn't find any URL in the returned body, did we hit the query limit? Body follows:"
-        cat "$payload"
-        exit 1
-    else
-        action_error "Couldn't find a proper URL for your architecture ($arch), looked for pattern '$pattern'. You may have to compile $PROGRAM_NAME yourself!"
-        action_detail "Maybe the release asset naming pattern has changed and we're not aware, if you think one of the packages below match your OS & arch, you may download & install them manually:"
-        for line in $urls; do
-            action_detail "$line"
-        done
-        exit 1
-    fi
+        url="$(echo "$urls" | grep -E "$pattern" | head -n1)"
+
+        if [ -n "$url" ]; then
+            # success
+            action_detail "$url"
+            return 0
+        elif [ ! -s "$payload" ]; then
+            action_error "API returned an empty body, did we hit the query limit?"
+            if [ "$CI" = "true" ]; then
+                action_detail "... CI environment detected, try $try out of $maxtries, sleeping and retrying..."
+                sleep 63
+                continue
+            fi
+            exit 1
+        elif [ -z "$urls" ]; then
+            action_error "Couldn't find any URL in the returned body, did we hit the query limit? Body follows:"
+            cat "$payload"
+            exit 1
+        else
+            action_error "Couldn't find a proper URL for your architecture ($arch), looked for pattern '$pattern'. You may have to compile $PROGRAM_NAME yourself!"
+            action_detail "Maybe the release asset naming pattern has changed and we're not aware, if you think one of the packages below match your OS & arch, you may download & install them manually:"
+            for line in $urls; do
+                action_detail "$line"
+            done
+            exit 1
+        fi
+    done
+    # if we're here, we've reached maxtries
+    action_error "Reached max tries, aborting"
+    exit 1
 }
 
 prepare_temp_folder() {