1 files changed, 99 insertions, 0 deletions
diff --git a/builder/dnbd3-rootfs/scripts/utils.sh b/builder/dnbd3-rootfs/scripts/utils.sh
new file mode 100644
index 00000000..3c72dbca
--- /dev/null
+++ b/builder/dnbd3-rootfs/scripts/utils.sh
@@ -0,0 +1,99 @@
+UTILS_KERNEL_MODULE_DIRECTORY="builder/dnbd3-qcow2-rootfs/kernel_modules/"
+UTILS_STANDARD_OUTPUT=/dev/null
+UTILS_ERROR_OUTPUT=/dev/null
+
+function utils_log() {
+    # Handles logging messages. Returns non zero and exit on log level
+    # error to support chaining the message into toolchain.
+    #
+    # Examples:
+    #
+    # >>> build_initramfs_log
+    # info: test
+    # >>> build_initramfs_log debug message
+    # debug: message
+    # >>> build_initramfs_log info message '\n'
+    #
+    # info: message
+    local loggingType='info' && \
+    local message="$1" && \
+    if [ "$2" ]; then
+        loggingType="$1"
+        message="$2"
+    fi
+    if [ "$_VERBOSE" == 'yes' ] || [ "$loggingType" == 'error' ] || \
+       [ "$loggingType" == 'critical' ]; then
+        if [ "$3" ]; then
+            echo -e -n "$3"
+        fi
+        echo -e "${loggingType}: $message"
+    fi
+    if [ "$loggingType" == 'error' ]; then
+        exit 1
+    fi
+    return 0
+}
+function compile_nbd() {
+    # Downloads and compiles nbd.
+    #
+    # Examples:
+    #
+    # >>> build_initramfs_compile_nbd
+    # ...
+    # Provides the following file:
+    # ${_KERNEL_MODULE_DIRECTORY}/nbd/nbd.ko
+    pushd "${_KERNEL_MODULE_DIRECTORY}/nbd" \
+        1>"$_STANDARD_OUTPUT" 2>"$_ERROR_OUTPUT" && \
+    build_initramfs_log 'Compile the nbd kernel module.' && \
+    make 1>"$_STANDARD_OUTPUT" 2>"$_ERROR_OUTPUT" && \
+    popd 1>"$_STANDARD_OUTPUT" 2>"$_ERROR_OUTPUT"
+    return $?
+    # TODO make clean
+}
+function compile_dnbd3() {
+    # Downloads and compiles dnbd3.
+    #
+    # Examples:
+    #
+    # >>> build_initramfs_compile_dnbd3
+    # ...
+    # Provides the following file:
+    # ${_KERNEL_MODULE_DIRECTORY}/dnbd3/build/dnbd3.ko
+    rm --recursive --force ${_KERNEL_MODULE_DIRECTORY}/dnbd3 \
+        1>"$_STANDARD_OUTPUT" 2>"$_ERROR_OUTPUT" && \
+    pushd $_KERNEL_MODULE_DIRECTORY \
+        1>"$_STANDARD_OUTPUT" 2>"$_ERROR_OUTPUT" && \
+    git clone git://git.openslx.org/dnbd3.git \
+        1>"$_STANDARD_OUTPUT" 2>"$_ERROR_OUTPUT" && \
+    cd dnbd3 1>"$_STANDARD_OUTPUT" 2>"$_ERROR_OUTPUT" && \
+    ./build.sh 1>"$_STANDARD_OUTPUT" 2>"$_ERROR_OUTPUT" && \
+    popd 1>"$_STANDARD_OUTPUT" 2>"$_ERROR_OUTPUT"
+    return $?
+    # TODO rm -rf build
+}
+function compile_systemd_preserve_process_marker() {
+    # Compiles simple c program.
+    pushd && \
+    make && \
+    popd
+    return $?
+}
+function utils_dependency_check() {
+    # This function check if all given dependencies are present.
+    #
+    # Examples:
+    #
+    # >>> build_initramfs_perform_dependency_check "mkdir pacstrap mktemp"
+    # ...
+    local dependenciesToCheck="$1" && \
+    local result=0 && \
+    local dependency && \
+    for dependency in ${dependenciesToCheck[*]}; do
+        if ! hash "$dependency" 1>"$_STANDARD_OUTPUT" 2>/dev/null; then
+            build_initramfs_log 'critical' \
+                "Needed dependency \"$dependency\" isn't available." && \
+            result=1
+        fi
+    done
+    return $result
+}