Dockerfile for building pfalcon's branch of micropython

Dockerfile

FROM ubuntu:bionic

ARG DEBIAN_FRONTEND=noninteractive

RUN apt-get update -qq \
    && apt-get install -qqy \
    autoconf \
    automake \
    bash \
    bison \
    build-essential \
    bzip2 \
    flex \
    g++ \
    gawk \
    gcc \
    git \
    gperf \
    help2man \
    libexpat-dev \
    libffi-dev \
    libtool \
    libtool-bin \
    make \
    ncurses-dev \
    pkg-config \
    python \
    python-dev \
    python-serial \
    python3 \
    python3-pip \
    sed \
    texinfo \
    unrar-free \
    unzip \
    wget \ 
    && apt-get clean \
    && rm -rf /var/lib/apt/lists/*

RUN pip3 install pyparsing

RUN useradd --no-create-home micropython

RUN mkdir /esp
RUN chown -R micropython:micropython esp
USER micropython
WORKDIR /esp

# Download crosstool-NG and build it:
RUN git clone -b xtensa-1.22.x https://github.com/espressif/crosstool-NG.git
RUN cd crosstool-NG && ./bootstrap && ./configure --enable-local && make install

# Build the toolchain:
RUN cd crosstool-NG && ./ct-ng xtensa-esp32-elf
RUN cd crosstool-NG && ./ct-ng build
RUN cd crosstool-NG && chmod -R u+w builds/xtensa-esp32-elf

ARG BRANCH=master

# Find correct version of esp-idf, depends on selected branch
ADD --chown=micropython:micropython https://raw.githubusercontent.com/pfalcon/micropython/$BRANCH/ports/esp32/Makefile /tmp/ESP32-Makefile

RUN git clone https://github.com/espressif/esp-idf.git
RUN cd esp-idf && cat /tmp/ESP32-Makefile | grep "^ESPIDF_SUPHASH_V4" | awk '{print $NF}' | xargs git checkout
RUN cd esp-idf && git submodule update --init --recursive

ENV PATH="${PATH}:/esp/crosstool-NG/builds/xtensa-esp32-elf/bin"
ENV ESPIDF="/esp/esp-idf"

# Cache buster for git clone #https://stackoverflow.com/questions/36996046/how-to-prevent-dockerfile-caching-git-clone
ADD https://api.github.com/repos/pfalcon/micropython/git/refs/heads/$BRANCH version.json
RUN git clone --recursive https://github.com/pfalcon/micropython.git \
    && cd micropython && git checkout $BRANCH && git submodule update --init

RUN make --directory /esp/micropython -C mpy-cross

RUN make --directory /esp/micropython/ports/unix


# add modules to be frozen in the built firmware, customize as required
RUN cd /esp/micropython/ports/unix && ./pycopy -m upip install -p ../esp32/modules \
    micropython-uasyncio \
    micropython-uaiohttpclient \
    micropython-logging

# add drivers to be frozen in the built firmware, customize as required
RUN ln /esp/micropython/drivers/display/ssd1306.py /esp/micropython/ports/esp8266/modules/ssd1306.py
RUN ln /esp/micropython/drivers/sdcard/sdcard.py /esp/micropython/ports/esp8266/modules/sdcard.py

# or download from github
RUN wget -O /esp/micropython/ports/esp8266/modules/bmp280.py  https://raw.githubusercontent.com/dafvid/micropython-bmp280/master/bmp280.py

# install required pyparsing version
USER root 
RUN pip3 install "pyparsing==2.3.1"
# Finally build the firmware
RUN make --directory /esp/micropython/ports/esp32

Usage:

docker build -t pycopy https://gist.githubusercontent.com/tdamsma/b49359448924d7aa816d50be2170a610/raw/c12ffbf690fb56a5e9f327cdd2cb81b631db3d5d/Dockerfile
docker create --name pycopy pycopy
docker cp pycopy:/esp/micropython/ports/esp32/build-GENERIC/firmware.bin firmware.bin

Should result in a firmware.bin file with some frozen modules

Thanks for putting this together! I've tried and failed to get PyCopy built on my machine, and this is a much better way of doing it.

@etjones, you're welcome. I was meaning to somehow get this merged in the docs or something, but haven't gotten to it yet. Glad it worked

Well, not sure it worked yet... Got through an hour of builds, and it looks like there may have been a change in the pycopy repo that builds the executable as pycopy rather than micropython:

From the end of my run:

CC modusocket.c
CC modffi.c
CC ../../lib/mp-readline/readline.c
CC ../../lib/timeutils/timeutils.c
CC ../../lib/oofatfs/ff.c
CC ../../lib/oofatfs/ffunicode.c
LINK pycopy
   text	   data	    bss	    dec	    hex	filename
      2	      0	      0	      2	      2	build/build/frozen.o
   4976	   3720	      0	   8696	   21f8	build/build/frozen_mpy.o
 319619	   6280	   2184	 328083	  50193	pycopy
make: Leaving directory '/esp/micropython/ports/unix'
Removing intermediate container ec15544e3e7c
 ---> e3a6509150ff
Step 26/28 : RUN cd /esp/micropython/ports/unix && ./micropython -m upip install -p ../esp32/modules   micropython-uasyncio   micropython-uaiohttpclient   micropython-urequests   micropython-logging
 ---> Running in b117c8fff6a7
/bin/sh: 1: ./micropython: not found
The command '/bin/sh -c cd /esp/micropython/ports/unix && ./micropython -m upip install -p ../esp32/modules   micropython-uasyncio   micropython-uaiohttpclient   micropython-urequests   micropython-logging' returned a non-zero code: 127

So... I'll let you know if I can convince this to work. It may just be a matter of changing the executable in command 26

Good to know, I'll update it if needed

Indeed this fixes it, I have updated the gist and build instructions, they work for me now

Just worked for me, too. Thanks!