vm-bootstrap.sh

#!/usr/bin/env bash
set -ex

# This is based on https://github.com/esp8266/esp8266-wiki/wiki/Toolchain

# prepare the machine
sudo apt-get update
sudo apt-get -y install git autoconf build-essential \
     gperf bison flex texinfo libtool libncurses5-dev \
     wget gawk libc6-dev-amd64 python-pip libexpat-dev unzip

sudo pip install pyserial

if [ ! -d /opt/Espressif ]; then
  sudo mkdir /opt/Espressif
fi
sudo chown vagrant /opt/Espressif

# Build the cross-compiler
cd /opt/Espressif
if [ ! -d /opt/Espressif/crosstool-NG ]; then
  git clone -b lx106 https://github.com/jcmvbkbc/crosstool-NG.git
fi

cd /opt/Espressif/crosstool-NG

function gitsha() { git show --format=%H | head -1; }
OLDSHA=`gitsha`
git pull origin lx106

if [ "$OLDSHA" != `gitsha` ] || [ ! -d /opt/Espressif/crosstool-NG/builds ]; then
  ./bootstrap && ./configure -- prefix=`pwd` && make && make install
  ./ct-ng xtensa-lx106-elf
  ./ct-ng build
fi

PATH=$PWD/builds/xtensa-lx106-elf/bin:$PATH # for building the RTOS SDK later

# Setup the cross compiler
HAS_PATH=`cat ~/.bashrc | grep "$PWD/builds/xtensa-lx106-elf/bin:" || :`
if [ -z "$HAS_PATH" ]; then
  echo "# Add Xtensa Compiler Path" >> ~/.bashrc
  echo "export PATH=$PWD/builds/xtensa-lx106-elf/bin:\$PATH" >> ~/.bashrc
  echo "export XTENSA_TOOLS_ROOT=$PWD/builds/xtensa-lx106-elf/bin" >> ~/.bashrc
fi

cd /opt/Espressif/crosstool-NG/builds/xtensa-lx106-elf/bin
chmod u+w .
rm -f xt-*
for i in `ls xtensa-lx106*`; do
  XT_NAME=`echo -n $i | sed s/xtensa-lx106-elf-/xt-/`
  echo "symlinking: $XT_NAME"
  ln -s "$i" "$XT_NAME"
done
ln -s xt-cc xt-xcc # the RTOS SDK needs it

HAS_CROSS_COMPILE=`cat ~/.bashrc | grep "export CROSS_COMPILE" || :`
if [ -z "$HAS_CROSS_COMPILE" ]; then
  echo "# Cross Compilation Settings" >> ~/.bashrc
  echo "export CROSS_COMPILE=xtensa-lx106-elf-" >> ~/.bashrc
fi

# Set up the SDK
# TODO: can this be automated? is there a place to check what the latest SDK
# is, and then install it the same way each time? probably not -- updates to
# this repo will have to manually change this chunk of steps.
cd /opt/Espressif
LATEST_SDK_VERSION="esp_iot_sdk_v0.9.5"
CURRENT_SDK_VERSION=`readlink esp8266_sdk || :`

if [ "$LATEST_SDK_VERSION" != "$CURRENT_SDK_VERSION" ]; then
  rm -rf esp8266_sdk
  unzip -o /vagrant/tools/sdk/esp_iot_sdk_v0.9.5_15_01_23.zip
  mv License esp_iot_sdk_v0.9.5/
  mv release_note.txt esp_iot_sdk_v0.9.5/
  cd esp_iot_sdk_v0.9.5/include
  unzip -o /vagrant/tools/sdk/esp_iot_sdk_v0.9.5_15_01_23_patch1.zip  user_interface.h
  cd ../lib
  mv libmain.a libmain.a.old

  unzip -o /vagrant/tools/sdk/esp_iot_sdk_v0.9.5_15_01_23_patch1.zip libmain_fix_0.9.5.a
  mv libmain_fix_0.9.5.a libmain.a
  cd ../../
  ln -s esp_iot_sdk_v0.9.5 esp8266_sdk
  cp /vagrant/tools/sdk/extra-libs/* esp8266_sdk/lib/
  cd /opt/Espressif/esp8266_sdk
  tar -xzf /vagrant/tools/sdk/extra-includes/include.tgz
fi

HAS_SDK_BASE=`cat ~/.bashrc | grep "export SDK_BASE" || :`
if [ -z "$HAS_SDK_BASE" ]; then
  echo "# ESP8266 SDK Base" >> ~/.bashrc
  echo "export SDK_BASE=/opt/Espressif/esp8266_sdk" >> ~/.bashrc
fi

# Set up the RTOS SDK
cd /opt/Espressif
if [ ! -d /opt/Espressif/esp8266_rtos_sdk ]; then
  git clone https://github.com/espressif/esp_iot_rtos_sdk.git esp8266_rtos_sdk
  git clone https://github.com/espressif/esp_iot_rtos_sdk_lib.git esp8266_rtos_sdk_lib
  cp esp8266_rtos_sdk_lib/lib/* esp8266_rtos_sdk/lib
fi

cd /opt/Espressif/esp8266_rtos_sdk
git pull origin master
make


# Install ESP tool
sudo cp /vagrant/tools/esptool-0.0.3 /usr/local/bin/esptool

# Install esptool-py
cd /opt/Espressif
if [ ! -d /opt/Espressif/esptool-py ]; then
  git clone https://github.com/themadinventor/esptool esptool-py
fi
cd /opt/Espressif/esptool-py
git pull origin master
sudo ln -sf $PWD/esptool.py /usr/local/bin/