diff --git a/.travis.yml b/.travis.yml
index bea3d17..7ba845a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -10,47 +10,7 @@ addons:
         - valgrind
 
 before_install:
-  - mkdir -p .deps
-  - cd .deps
-  - wget -O fuse-3.1.1.tar.gz https://github.com/libfuse/libfuse/archive/fuse-3.1.1.tar.gz
-  - tar -xf fuse-3.1.1.tar.gz
-  - cd libfuse-fuse-3.1.1
-  - ./makeconf.sh
-  - ./configure
-  - make
-  - sudo make install
-  - cd ..
-  - wget -O libwebsockets-3.1.0.tar.gz https://github.com/warmcat/libwebsockets/archive/v3.1.0.tar.gz
-  - tar -xf libwebsockets-3.1.0.tar.gz
-  - cd libwebsockets-3.1.0
-  - mkdir .build
-  - cd .build
-  - cmake ..
-  - make
-  - sudo make install
-  - cd ..
-  - cd ..
-  - wget -O libjansson-2.12.tar.gz https://github.com/akheron/jansson/archive/v2.12.tar.gz
-  - tar -xf libjansson-2.12.tar.gz
-  - cd jansson-2.12
-  - mkdir .build
-  - cd .build
-  - cmake ..
-  - make
-  - sudo make install
-  - cd ..
-  - cd ..
-  - wget -O gtest-1.8.1.tar.gz https://github.com/google/googletest/archive/release-1.8.1.tar.gz
-  - tar -xf gtest-1.8.1.tar.gz
-  - cd googletest-release-1.8.1
-  - mkdir .build
-  - cd .build
-  - cmake ..
-  - make
-  - sudo make install
-  - cd ..
-  - cd ..
-  - cd ..
+  - ./install_deps.sh
   - export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib
 
 
diff --git a/install_deps.sh b/install_deps.sh
new file mode 100755
index 0000000..a20b7c7
--- /dev/null
+++ b/install_deps.sh
@@ -0,0 +1,168 @@
+#!/bin/bash
+#
+# Checks for dependencies and install them, if needed.
+#
+# A valid package description is defined as follows:
+#  local <package>_name=<name>
+#  local <package>_type=<type>
+#  local <package>_archive=<archive>
+#  local <package>_dir=<dir>
+#  local <package>_url=<url>
+#
+# <package> - symbolid id of package
+# <name>    - name of the package (used for pkg-config)
+# <type>    - type of project ("cmake" or "autotools")
+# <archive> - archive file name
+# <dir>     - dir of package sources
+# <url>     - url of the project archive
+#
+# For examples, see below.
+
+#######################################
+# Installs a cmake package.
+#
+# Arguments:
+#   package - name of package
+# Returns:
+#   0 on success, otherwise failure
+#######################################
+function install_cmake_package() {
+    local package="$1"
+    local archive="${package}_archive"
+    local dir="${package}_dir"
+    local url="${package}_url"
+
+    wget -O "${!archive}" "${!url}" && \
+    tar -xf "${!archive}" && \
+    cd "${!dir}" && \
+    mkdir .build && \
+    cd .build && \
+    cmake .. && \
+    make && \
+    sudo make install && \
+    cd .. && \
+    cd ..
+
+    return "$?"
+}
+
+#######################################
+# Installs a autotools package.
+#
+# Arguments:
+#   package - name of package
+# Returns:
+#   0 on success, otherwise failure
+#######################################
+function install_autotools_package() {
+    local package="$1"
+    local archive="${package}_archive"
+    local dir="${package}_dir"
+    local url="${package}_url"
+
+    wget -O "${!archive}" "${!url}" && \
+    tar -xf "${!archive}" && \
+    cd "${!dir}" && \
+    ./makeconf.sh && \
+    ./configure && \
+    make && \
+    sudo make install && \
+    cd ..
+
+    return "$?"
+}
+
+#######################################
+# Checks, whether a package exists.
+#
+# Arguments:
+#   package_name - name of package
+# Returns:
+#   0 if package exists, otherwise failure
+#######################################
+function package_exists() {
+    local package_name="$1"
+
+    pkg-config --exists "${package_name}"
+    return "$?"
+}
+
+#######################################
+# Installs a package, if it is not available.
+#
+# Arguments:
+#   package - name of package
+# Returns:
+#   0 if package exists, otherwise failure
+#######################################
+function install_if_needed() {
+    local package="$1"
+    local package_name="${package}_name"
+    local package_type="${package}_type"
+    local result=0
+
+    package_exists "${!package_name}"
+    if [[ "$?" -ne 0 ]]; then
+        "install_${!package_type}_package" "$package"
+        result="$?"
+    fi
+
+    return "${result}"
+}
+
+#######################################
+# Main
+#
+# Arguments:
+#   None
+# Returns:
+#   0 on success, otherwise failure
+#######################################
+function main() {
+    rm -rf .deps
+    mkdir .deps
+    cd .deps
+
+    local packages=(fuse3 lws jansson gtest)
+
+    local fuse3_name=fuse3
+    local fuse3_type=autotools
+    local fuse3_archive=fuse-3.1.1.tar.gz
+    local fuse3_dir=libfuse-fuse-3.1.1
+    local fuse3_url=https://github.com/libfuse/libfuse/archive/fuse-3.1.1.tar.gz
+
+    local lws_name=libwebsockets
+    local lws_type=cmake
+    local lws_archive=libwebsockets-3.1.0.tar.gz
+    local lws_dir=libwebsockets-3.1.0
+    local lws_url=https://github.com/warmcat/libwebsockets/archive/v3.1.0.tar.gz
+
+    local jansson_name=jansson
+    local jansson_type=cmake
+    local jansson_archive=libjansson-2.12.tar.gz
+    local jansson_dir=jansson-2.12
+    local jansson_url=https://github.com/akheron/jansson/archive/v2.12.tar.gz
+ 
+    local gtest_name=gtest_main
+    local gtest_type=cmake
+    local gtest_archive=gtest-1.8.1.tar.gz
+    local gtest_dir=googletest-release-1.8.1
+    local gtest_url=https://github.com/google/googletest/archive/release-1.8.1.tar.gz
+
+    local result=0
+    local package=""
+    for package in "${packages[@]}" ; do
+        install_if_needed $package
+        result="$?"
+
+        if [[ "${result}" -ne 0 ]] ; then
+            cd ..
+            return "${result}"
+        fi
+    done
+
+    cd ..
+    return 0
+}
+
+main "$@"