Add new project KDE-Thumbnailers (#13490)

KDE thumbnailers generate previews for various file formats across KDE
Plasma and Apps (like Dolphin).
Corresponding MR:
https://invent.kde.org/network/kio-extras/-/merge_requests/441

Author: amazingakai

projects/kde-thumbnailers/Dockerfile

@@ -0,0 +1,32 @@
+# Copyright 2025 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+################################################################################
+
+
+FROM gcr.io/oss-fuzz-base/base-builder
+
+RUN git clone --depth 1 https://invent.kde.org/network/kio-extras.git
+RUN git clone --depth 1 https://invent.kde.org/graphics/kdegraphics-thumbnailers.git
+RUN git clone --depth 1 https://invent.kde.org/sdk/kdesdk-thumbnailers.git
+RUN git clone --depth 1 https://invent.kde.org/multimedia/ffmpegthumbs.git
+
+RUN $SRC/kio-extras/thumbnail/autotests/ossfuzz/prepare_build.sh
+RUN $SRC/kdegraphics-thumbnailers/autotests/ossfuzz/prepare_build.sh
+RUN $SRC/kdesdk-thumbnailers/autotests/ossfuzz/prepare_build.sh
+RUN $SRC/ffmpegthumbs/autotests/ossfuzz/prepare_build.sh
+
+COPY build.sh $SRC
+
+WORKDIR $SRC

projects/kde-thumbnailers/build.sh

@@ -0,0 +1,22 @@
+#!/bin/bash -eu
+#
+# Copyright 2025 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+################################################################################
+
+$SRC/kio-extras/thumbnail/autotests/ossfuzz/build_fuzzers.sh
+$SRC/kdegraphics-thumbnailers/autotests/ossfuzz/build_fuzzers.sh
+$SRC/kdesdk-thumbnailers/autotests/ossfuzz/build_fuzzers.sh
+$SRC/ffmpegthumbs/autotests/ossfuzz/build_fuzzers.sh

projects/kde-thumbnailers/project.yaml

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+homepage: "https://invent.kde.org/network/kio-extras.git"
+language: c++
+primary_contact: [email protected]
+sanitizers:
+  - address
+  - undefined
+main_repo: "https://invent.kde.org/network/kio-extras.git"