simplify Dockerfile, add travis CI

.travis.yml

@@ -0,0 +1,17 @@
+sudo: false
+language: c
+
+addons:
+  apt:
+    packages:
+    - build-essential
+    - git
+    - gcc-arm-none-eabi
+
+install:
+  - git clone https://github.com/libopencm3/libopencm3
+
+script:
+  - cd libopencm3; make; cd ..
+  - TOOLCHAIN_DIR=libopencm3 make
+  - cd firmware; TOOLCHAIN_DIR=libopencm3 make; cd ..

Dockerfile

@@ -2,18 +2,13 @@
 
 FROM ubuntu:14.04
 
-ENV GCC_ARM_VERSION 4.9.3.2015q2-1trusty1
+# update repositories
 
-# add and update package repositories
-
-RUN apt-key adv --keyserver keyserver.ubuntu.com --recv-keys FE324A81C208C89497EFC6246D1D8367A3421AFB
-RUN gpg --keyring /etc/apt/trusted.gpg --primary-keyring /etc/apt/trusted.gpg --fingerprint FE324A81C208C89497EFC6246D1D8367A3421AFB
-RUN echo "deb http://ppa.launchpad.net/terry.guo/gcc-arm-embedded/ubuntu trusty main" >> /etc/apt/sources.list && apt-get update
+RUN apt-get update
 
 # install build tools and dependencies
 
-RUN apt-get install -y build-essential git python
-RUN apt-get install -y gcc-arm-none-eabi=$GCC_ARM_VERSION
+RUN apt-get install -y build-essential git python gcc-arm-none-eabi
 
 # clone the source code
 

README.md

@@ -0,0 +1,28 @@
+TREZOR Firmware
+===============
+
+[![Build Status](https://travis-ci.org/trezor/trezor-mcu.svg?branch=master)](https://travis-ci.org/trezor/trezor-mcu)
+
+http://bitcointrezor.com/
+
+How to build TREZOR firmware?
+-----------------------------
+
+1. Install Docker (from docker.com or from your distribution repositories)
+2. `git clone https://github.com/trezor/trezor-mcu.git`
+3. `cd trezor-mcu`
+4. `./firmware-docker-build.sh TAG` (where TAG is v1.3.2 for example, if left blank the script builds latest commit)
+
+This creates file `output/trezor-TAG.bin` and prints its fingerprint at the last line of the build log.
+
+How to get fingerprint of firmware signed and distributed by SatoshiLabs?
+-------------------------------------------------------------------------
+
+1. Pick version of firmware binary listed on https://mytrezor.com/data/firmware/releases.json
+2. Download it: `wget -O trezor.signed.bin.hex https://mytrezor.com/data/firmware/trezor-1.1.0.bin.hex`
+3. `xxd -r -p trezor.signed.bin.hex trezor.signed.bin`
+4. `./firmware-fingerprint.sh trezor.signed.bin`
+
+Step 4 should produce the same sha256 fingerprint like your local build (for the same version tag).
+
+The reasoning for `firmware-fingerprint.sh` script is that signed firmware has special header holding signatures themselves, which must be avoided while calculating the fingerprint.

README.rst

@@ -1,26 +0,0 @@
-TREZOR Firmware
-===============
-
-http://bitcointrezor.com/
-
-How to build Trezor firmware?
------------------------------
-
-1. Install Docker (from docker.com or from your distribution repositories)
-2. ``git clone https://github.com/trezor/trezor-mcu.git``
-3. ``cd trezor-mcu``
-4. ``./firmware-docker-build.sh TAG`` (where TAG is v1.3.2 for example, if left blank the script builds latest commit)
-
-This creates file ``output/trezor-TAG.bin`` and prints its fingerprint at the last line of the build log.
-
-How to get fingerprint of firmware signed and distributed by SatoshiLabs?
--------------------------------------------------------------------------
-
-1. Pick version of firmware binary listed on https://mytrezor.com/data/firmware/releases.json
-2. Download it: ``wget -O trezor.signed.bin.hex https://mytrezor.com/data/firmware/trezor-1.1.0.bin.hex``
-3. ``xxd -r -p trezor.signed.bin.hex trezor.signed.bin``
-4. ``./firmware-fingerprint.sh trezor.signed.bin``
-
-Step 4 should produce the same sha256 fingerprint like your local build (for the same version tag).
-
-The reasoning for ``firmware-fingerprint.sh`` script is that signed firmware has special header holding signatures themselves, which must be avoided while calculating the fingerprint.