add Github workflow to build the prereq Docker image for TravisCI build (#137)

* Create build-docker-prereq.ym

* Rename build-docker-prereq.ym to build-docker-prereq.yml

* Create prereq.Dockerfile

* Update build-docker-prereq.yml

* Update clone-mlir.sh

* Update build-docker-prereq.yml

* Update clone-mlir.sh

* Update build-docker-prereq.yml

* Update clone-mlir.sh

* Update prereq.Dockerfile

* Update clone-mlir.sh

* Update prereq.Dockerfile

* Update clone-mlir.sh

* Update build-docker-prereq.yml

* Update prereq.Dockerfile

* Update clone-mlir.sh

* Update build-docker-prereq.yml

* Update clone-mlir.sh

* Update Dockerfile

* Update .travis.yml

* Update .travis.yml

* Update Dockerfile

* Update Dockerfile

* Update build-docker-prereq.yml

* Update Dockerfile

* Update prereq.Dockerfile

* Update clone-mlir.sh

* Update build-docker-prereq.yml

* Update .travis.yml

Co-authored-by: Gheorghe-Teodor Bercea <gt.bercea@gmail.com>

.github/workflows/build-docker-prereq.yml

@@ -0,0 +1,28 @@
+# This workflow will run whenever there is a change to the version of LLVM the project is based on
+# It will create a new Docker image for the TravisCI build and push it to Docker Hub
+# This image contains the prereqs for building onnx-mlir including a precompiled copy of the appropriate
+# LLVM and MLIR code.
+
+name: Build Docker Prereq Image
+
+# Run this workflow when there is a change to clone-mlir.sh (that implies a new version of LLVM is being used)
+on:
+  push:
+    paths:
+    - 'utils/clone-mlir.sh'
+
+jobs:
+  # This workflow contains a single job called "build"
+  build:
+    # The type of runner that the job will run on
+    runs-on: ubuntu-latest
+
+    # Steps represent a sequence of tasks that will be executed as part of the job
+    steps:
+    # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+    - uses: actions/checkout@v2
+    - name: build image
+      run: |
+        docker build --tag onnxmlirczar/onnx-mlir-llvmimage:initial -f $GITHUB_WORKSPACE/.github/workflows/prereq.Dockerfile $GITHUB_WORKSPACE/utils
+        docker login -u onnxmlirczar -p 143f1da2-332f-45a1-8587-d6cb07c13230 
+        docker push onnxmlirczar/onnx-mlir-llvmimage:initial 

.github/workflows/prereq.Dockerfile

@@ -0,0 +1,43 @@
+FROM ubuntu:focal
+
+WORKDIR /build
+
+# install stuff that is needed for compiling LLVM, MLIR and ONNX
+RUN apt-get update
+RUN DEBIAN_FRONTEND=noninteractive apt-get install -y git cmake ninja-build libprotobuf-dev protobuf-compiler 
+RUN DEBIAN_FRONTEND=noninteractive \
+    apt-get update && \
+    apt-get -y install \
+        make build-essential libssl-dev zlib1g-dev libbz2-dev libreadline-dev \
+        libsqlite3-dev wget curl llvm libncurses5-dev libncursesw5-dev xz-utils \
+        libffi-dev liblzma-dev
+RUN git clone git://github.com/yyuu/pyenv.git .pyenv
+RUN git clone https://github.com/yyuu/pyenv-virtualenv.git ~/.pyenv/plugins/pyenv-virtualenv
+
+ENV HOME=/build
+ENV PYENV_ROOT=$HOME/.pyenv
+ENV PATH=$PYENV_ROOT/shims:$PYENV_ROOT/bin:$PATH
+
+RUN pyenv install 3.7.0
+
+RUN pyenv global 3.7.0
+RUN pyenv rehash
+
+# first install MLIR in llvm-project
+RUN mkdir bin
+ENV PATH=$PATH:/build/bin
+COPY clone-mlir.sh bin/clone-mlir.sh
+RUN chmod a+x bin/clone-mlir.sh
+RUN clone-mlir.sh
+
+WORKDIR /build/llvm-project/build
+RUN cmake -G Ninja ../llvm \
+   -DLLVM_ENABLE_PROJECTS=mlir \
+   -DLLVM_BUILD_EXAMPLES=ON \
+   -DLLVM_TARGETS_TO_BUILD="host" \
+   -DCMAKE_BUILD_TYPE=Release \
+   -DLLVM_ENABLE_ASSERTIONS=ON \
+   -DLLVM_ENABLE_RTTI=ON
+
+RUN cmake --build . --target -- ${MAKEFLAGS}
+RUN cmake --build . --target check-mlir

docker/Dockerfile

@@ -1,5 +1,7 @@
-FROM caoimhinuibrian/onnx-mlir-llvmimage:initial
+# Grab pre-built LLVM from github packages
+FROM onnxmlirczar/onnx-mlir-llvmimage:initial
 
+WORKDIR /build/bin
 WORKDIR /build
 ENV HOME=/build
 ENV PYENV_ROOT=$HOME/.pyenv
@@ -7,7 +9,6 @@ ENV PATH=$PYENV_ROOT/shims:$PYENV_ROOT/bin:$PATH
 RUN pyenv global 3.7.0
 RUN pyenv rehash
 
-RUN mkdir bin
 ENV PATH=$PATH:/build/bin
 RUN git clone --recursive https://github.com/onnx/onnx-mlir.git
 COPY compile-onnx-mlir.sh bin/compile-onnx-mlir.sh