From 583310290cf6fb5a841489aa5e12f7ac6036ac59 Mon Sep 17 00:00:00 2001
From: Benedikt Schwab <benedikt.schwab@tum.de>
Date: Mon, 20 Nov 2023 20:26:07 +0100
Subject: [PATCH 1/3] added basic build ci workflow

---
 .github/workflows/build-citydb-tool.yml | 28 +++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 .github/workflows/build-citydb-tool.yml

diff --git a/.github/workflows/build-citydb-tool.yml b/.github/workflows/build-citydb-tool.yml
new file mode 100644
index 00000000..2b69d121
--- /dev/null
+++ b/.github/workflows/build-citydb-tool.yml
@@ -0,0 +1,28 @@
+name: Build citydb-tool
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: ${{matrix.os}}-latest
+    strategy:
+      matrix:
+        os: ['ubuntu', 'windows']
+        java: [ '11' ]
+        distribution: [ 'temurin' ]
+      fail-fast: false
+
+    steps:
+      - name: "Checkout"
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+      - name: "Set up Java"
+        uses: actions/setup-java@v3
+        with:
+          distribution: ${{ matrix.distribution }}
+          java-version: ${{ matrix.java }}
+      - name: "Grant execute permission for gradlew"
+        run: chmod +x ./gradlew
+      - name: "Build with Gradle"
+        run: ./gradlew build

From 4739216dfe12ea7296c8eca74a0d87b0a002ce87 Mon Sep 17 00:00:00 2001
From: Benedikt Schwab <benedikt.schwab@tum.de>
Date: Tue, 21 Nov 2023 09:28:59 +0100
Subject: [PATCH 2/3] added ci build badge

---
 README.md | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index da0805c4..baa751c5 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,5 @@
+![Gradle build](https://img.shields.io/github/actions/workflow/status/3dcitydb/citydb-tool/build-citydb-tool.yml?logo=Gradle&logoColor=white&style=flat-square)
+
 # citydb-tool
 3D City Database 5.0 CLI to import/export city model data and to run database operations
 
@@ -63,4 +65,4 @@ The script automatically downloads all required dependencies for building and ru
 are connected to the internet. The build process runs on all major operating systems and only requires a Java 11 JDK or
 higher to run.
 
-If the build was successful, you will find the citydb-tool package under `citydb-cli/build/install`.
\ No newline at end of file
+If the build was successful, you will find the citydb-tool package under `citydb-cli/build/install`.

From aa3f197be33547bb31fca5cf8b8051392825ea70 Mon Sep 17 00:00:00 2001
From: Claus Nagel <cnagel@virtualcitysystems.de>
Date: Wed, 22 Nov 2023 08:18:30 +0100
Subject: [PATCH 3/3] fixed reading multiple files from a single ZIP

---
 .../java/org/citydb/core/file/input/ZipInputFile.java     | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/citydb-core/src/main/java/org/citydb/core/file/input/ZipInputFile.java b/citydb-core/src/main/java/org/citydb/core/file/input/ZipInputFile.java
index 09f25bd7..422acc9f 100644
--- a/citydb-core/src/main/java/org/citydb/core/file/input/ZipInputFile.java
+++ b/citydb-core/src/main/java/org/citydb/core/file/input/ZipInputFile.java
@@ -76,6 +76,14 @@ public URI getFileURI() {
     }
 
     private FileSystem getFileSystem() {
+        if (fileSystem == null) {
+            try {
+                fileSystem = FileSystems.getFileSystem(fileURI);
+            } catch (Throwable e) {
+                //
+            }
+        }
+
         if (fileSystem == null) {
             try {
                 fileSystem = FileSystems.newFileSystem(fileURI, Collections.emptyMap());