1 files changed, 139 insertions, 0 deletions
diff --git a/net/test/build_rootfs.sh b/net/test/build_rootfs.sh
new file mode 100755
index 0000000..ce09da1
--- /dev/null
+++ b/net/test/build_rootfs.sh
@@ -0,0 +1,139 @@
+#!/bin/bash
+#
+# Copyright (C) 2018 The Android Open Source Project
+#
+# 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.
+#
+
+set -e
+
+SCRIPT_DIR=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd -P)
+
+usage() {
+  echo -n "usage: $0 [-h] [-s wheezy|stretch] [-a amd64|arm64] "
+  echo "[-m http://mirror/debian] [-n net_test.rootfs.`date +%Y%m%d`]"
+  exit 1
+}
+
+mirror=http://ftp.debian.org/debian
+debootstrap=debootstrap
+suite=stretch
+arch=amd64
+
+while getopts ":hs:a:m:n:" opt; do
+  case $opt in
+    h)
+      usage
+      ;;
+    s)
+      if [ "$OPTARG" != "wheezy" -a "$OPTARG" != "stretch" ]; then
+        echo "Invalid suite: $OPTARG" >&2
+        usage
+      fi
+      suite=$OPTARG
+      ;;
+    a)
+      if [ "$OPTARG" != "amd64" -a "$OPTARG" != "arm64" ]; then
+        echo "Invalid arch: $OPTARG" >&2
+        usage
+      fi
+      arch=$OPTARG
+      ;;
+    m)
+      mirror=$OPTARG
+      ;;
+    n)
+      name=$OPTARG
+      ;;
+    \?)
+      echo "Invalid option: $OPTARG" >&2
+      usage
+      ;;
+    :)
+      echo "Invalid option: $OPTARG requires an argument" >&2
+      usage
+      ;;
+  esac
+done
+
+name=net_test.rootfs.$arch.`date +%Y%m%d`
+
+# Switch to qemu-debootstrap for incompatible architectures
+if [ "$arch" = "arm64" ]; then
+  debootstrap=qemu-debootstrap
+fi
+
+# Sometimes it isn't obvious when the script fails
+failure() {
+  echo "Filesystem generation process failed." >&2
+}
+trap failure ERR
+
+# Import the package list for this release
+packages=`cat $SCRIPT_DIR/rootfs/$suite.list | xargs | tr -s ' ' ','`
+
+# For the debootstrap intermediates
+workdir=`mktemp -d`
+workdir_remove() {
+  echo "Removing temporary files.." >&2
+  sudo rm -rf $workdir
+}
+trap workdir_remove EXIT
+
+# Run the debootstrap first
+cd $workdir
+sudo $debootstrap --arch=$arch --variant=minbase --include=$packages \
+                  $suite . $mirror
+# Workarounds for bugs in the debootstrap suite scripts
+for mount in `cat /proc/mounts | cut -d' ' -f2 | grep -e ^$workdir`; do
+  echo "Unmounting mountpoint $mount.." >&2
+  sudo umount $mount
+done
+# Copy the chroot preparation scripts, and enter the chroot
+for file in $suite.sh common.sh net_test.sh; do
+  sudo cp -a $SCRIPT_DIR/rootfs/$file root/$file
+  sudo chown root:root root/$file
+done
+sudo chroot . /root/$suite.sh
+
+# Leave the workdir, to build the filesystem
+cd -
+
+# For the final image mount
+mount=`mktemp -d`
+mount_remove() {
+ rmdir $mount
+ workdir_remove
+}
+trap mount_remove EXIT
+
+# Create a 1G empty ext3 filesystem
+truncate -s 1G $name
+mke2fs -F -t ext3 -L ROOT $name
+
+# Mount the new filesystem locally
+sudo mount -o loop -t ext3 $name $mount
+image_unmount() {
+  sudo umount $mount
+  mount_remove
+}
+trap image_unmount EXIT
+
+# Copy the patched debootstrap results into the new filesystem
+sudo cp -a $workdir/* $mount
+
+# Fill the rest of the space with zeroes, to optimize compression
+sudo dd if=/dev/zero of=$mount/sparse bs=1M 2>/dev/null || true
+sudo rm -f $mount/sparse
+
+echo "Debian $suite for $arch filesystem generated at '$name'."