hello world

scripts/bootstrap

@@ -0,0 +1,8 @@
+#!/bin/bash
+set -e
+set -x
+
+cd $(dirname $0)/..
+
+apt-get update
+apt-get install -y build-essential wget libncurses5-dev unzip bc curl python rsync ccache

scripts/build-common

@@ -0,0 +1,151 @@
+#!/bin/bash
+set -e
+
+: ${ARTIFACTS:=$(pwd)/assets}
+: ${BUILD:=$(pwd)/build}
+: ${CONFIG:=$(pwd)/config}
+: ${DIST:=$(pwd)/dist}
+
+DOCKER_FILE=${CONFIG}/.dockerfile
+
+mkdir -p ${BUILD} ${DIST}
+
+busybox_install()
+{
+    local conf=$1
+    local bbconf=$2
+    local target=$3
+
+    if [ "$#" = "2" ]; then
+        target=$2
+        bbconf=
+    fi
+
+    apt-get update
+    apt-get install -y build-essential wget libncurses5-dev unzip bc
+
+    cd ${BUILD}
+
+    local buildroot=$(ls -1 ${ARTIFACTS}/buildroot-*.tar.bz2)
+
+    if [ ! -e "${buildroot}" ]; then
+        echo "Failed to find busybox archive, found : ${buildroot}" 1>&2
+        return 1
+    else
+        buildroot=$(basename $buildroot)
+    fi
+
+    rm -rf ${buildroot/.tar.bz2//}
+    tar xvjf ${ARTIFACTS}/${buildroot}
+    cd ${buildroot/.tar.bz2//}
+
+    cp $conf .config
+    if [ -n "$bbconf" ]; then
+        cp $bbconf package/busybox/
+    fi
+    make oldconfig
+    make
+
+    cp output/images/rootfs.tar $target
+}
+
+write_base()
+{
+    if [ "${BASE_WRITTEN}" = "true" ]; then
+        return
+    fi
+
+    mkdir -p $(dirname ${DOCKER_FILE})
+
+    cat > ${DOCKER_FILE} << EOF
+FROM ${DOCKER_BASE:=ubuntu:14.04.2}
+ENV TERM xterm
+WORKDIR /source
+EOF
+
+    BASE_WRITTEN=true
+}
+
+run()
+{
+    local content
+
+    while [ $# -gt 1 ]; do
+        case $1 in
+            --assets)
+                shift 1
+                if [ -e "$1" ]; then
+                content="$content\nCOPY $1 /source/$1"
+                else
+                    content="$content\nCOPY $1 /source/"
+                fi
+                ;;
+        esac
+
+        shift 1
+    done
+
+    write_base
+    if [ -n "$content" ]; then
+        echo -e "$content" >> ${DOCKER_FILE}
+    fi
+    if [ -n "$1" ]; then
+    echo -e "\nCOPY $1 /source/$1" >> ${DOCKER_FILE}
+    echo -e "RUN /source/$1" >> ${DOCKER_FILE}
+    fi
+
+    if [ "$RUN_EXEC" = "true" ]; then
+        $1
+    fi
+}
+
+finish()
+{
+    if [ "$RUN_EXEC" = true ]; then
+        return 0
+    fi
+    local cmd="docker build -t ${DOCKER_IMAGE} -f ${DOCKER_FILE} ."
+    echo Running $cmd
+    echo Pwd $(pwd)
+
+    cat ${DOCKER_FILE}
+
+    $cmd
+}
+
+reset_docker_build()
+{
+    BASE_WRITTEN=false
+}
+
+check()
+{
+    local hash=$1
+    local file=$2
+
+    if [ ! -e "$file" ]; then
+        return 1
+    fi
+
+    CURRENT=$(sha1sum $file | awk '{print $1}')
+
+    [ "$hash" = "$CURRENT" ]
+}
+
+download()
+{
+    mkdir -p ${ARTIFACTS}
+
+    local url=$2
+    local file=${ARTIFACTS}/$(basename $2)
+    local hash=$1
+
+    if ! check $hash $file; then
+        curl -sL $url > $file
+    fi
+
+    if ! check $hash $file; then
+        echo "ERROR: $file does not match checksum $hash, got $CURRENT" 1>&2
+        return 1
+    fi
+}

scripts/build-kernel

@@ -0,0 +1,35 @@
+#!/bin/bash
+
+cd $(dirname $0)/..
+
+source scripts/build-common
+
+apt-get install -y build-essential libncurses5-dev bc ccache
+
+export CCACHE_DIR="${HOME}/.kernel-ccache"
+export CC="ccache gcc"
+export PATH="/usr/lib/ccache:$PATH"
+KERNEL="$(cd ${ARTIFACTS}; echo Ubuntu-*.tar.*)"
+DIR=linux-${KERNEL/.tar.*//}
+
+cd ${BUILD}
+
+if [ ! -e ${DIR} ]; then
+    echo Extracting ${ARTIFACTS}/Ubuntu-*.tar.*
+    TEMP=$(mktemp -d -p ${BUILD})
+    trap "rm -rf ${TEMP}" exit
+
+    tar xf ${ARTIFACTS}/Ubuntu-*.tar.* -C $TEMP
+    mv ${TEMP}/${DIR} ${DIR}
+fi
+
+
+cd ${DIR}
+cp ${CONFIG}/kernel-config .config
+
+make oldconfig
+make -j$(nproc) tar-pkg
+
+mkdir -p ${DIST}/kernel
+mv linux*.tar ${DIST}/kernel
+make headers_install INSTALL_HDR_PATH=${DIST}/kernel/headers

scripts/ci

@@ -0,0 +1,17 @@
+#!/bin/bash
+set -e
+
+cd $(dirname $0)/..
+
+DOCKER_IMAGE=${DOCKER_IMAGE:=rancher-os-kernel-build}
+
+source scripts/build-common
+
+run --assets ./scripts/build-common \
+    ./scripts/bootstrap
+run ./scripts/download
+run --assets ./config/kernel-config \
+    ./scripts/build-kernel
+run ./scripts/package
+
+finish

scripts/clean

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+cd $(dirname $0)/..
+
+rm -rf build dist

scripts/download

@@ -0,0 +1,41 @@
+#!/bin/bash
+set -e
+set -x
+
+cd $(dirname $0)/..
+
+: ${ARTIFACTS:=$(pwd)/assets}
+
+check()
+{
+    local hash=$1
+    local file=$2
+
+    if [ ! -e "$file" ]; then
+        return 1
+    fi
+
+    CURRENT=$(sha1sum $file | awk '{print $1}')
+
+    [ "$hash" = "$CURRENT" ]
+}
+
+download()
+{
+    mkdir -p ${ARTIFACTS}
+
+    local url=$2
+    local file=${ARTIFACTS}/$(basename $2)
+    local hash=$1
+
+    if ! check $hash $file; then
+        curl -sL $url > $file
+    fi
+
+    if ! check $hash $file; then
+        echo "ERROR: $file does not match checksum $hash, got $CURRENT" 1>&2
+        return 1
+    fi
+}
+
+download 982ecdb9d2482e06d08e6ca02d8bef8787948061 https://github.com/rancherio/linux/archive/Ubuntu-3.19.0-22.22.tar.gz

scripts/package

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+cd $(dirname $0)/..
+
+. scripts/build-common
+
+mkdir -p ${DIST}/artifacts