Refactor github workflows (babelfish-for-postgresql#95)

Remove a lot of duplicated code between the various workflows by using Github composite actions.

.github/composite-actions/build-extensions/action.yml

@@ -0,0 +1,18 @@
+name: 'Build Extensions'
+runs:
+  using: "composite"
+  steps:
+    - name: Build Extensions
+      run: |
+        export PG_CONFIG=~/postgres/bin/pg_config
+        export PG_SRC=~/work/babelfish_extensions/postgresql_modified_for_babelfish
+        export cmake=$(which cmake)
+        cd contrib/babelfishpg_money
+        make && make install
+        cd ../babelfishpg_common
+        make && make install
+        cd ../babelfishpg_tds
+        make && make install
+        cd ../babelfishpg_tsql
+        make && make install
+      shell: bash

.github/composite-actions/build-modified-postgres/action.yml

@@ -0,0 +1,16 @@
+name: 'Build Modified Postgres'
+
+runs:
+  using: "composite"
+  steps:
+    - name: Checkout, Build, and Install the Modified PostgreSQL Instance and Run Tests
+      run: |
+        cd ..
+        git clone https://github.com/babelfish-for-postgresql/postgresql_modified_for_babelfish.git
+        cd postgresql_modified_for_babelfish
+        ./configure --prefix=$HOME/postgres/ --with-python PYTHON=/usr/bin/python2.7 --enable-debug CFLAGS="-ggdb" --with-libxml --with-uuid=ossp --with-icu
+        make -j 4 2>error.txt
+        make install
+        make check
+        cd contrib && make && sudo make install
+      shell: bash

.github/composite-actions/compile-antlr/action.yml

@@ -0,0 +1,22 @@
+name: 'Compile ANTLR'
+
+runs:
+  using: "composite"
+  steps:  
+
+    - name: Compile ANTLR
+      run: |
+        ANTLR_VERSION=4.9.3
+        
+        cd contrib/babelfishpg_tsql/antlr/thirdparty/antlr/
+        sudo cp "antlr-$ANTLR_VERSION-complete.jar" /usr/local/lib
+        cd ..
+        wget "http://www.antlr.org/download/antlr4-cpp-runtime-$ANTLR_VERSION-source.zip"
+        unzip -d antlr4 "antlr4-cpp-runtime-$ANTLR_VERSION-source.zip"
+        cd antlr4
+        mkdir build && cd build
+        cmake .. -D ANTLR_JAR_LOCATION="/usr/local/lib/antlr-$ANTLR_VERSION-complete.jar" -DCMAKE_INSTALL_PREFIX=/usr/local -DWITH_DEMO=True
+        make -j 4
+        sudo make install
+        cp "/usr/local/lib/libantlr4-runtime.so.$ANTLR_VERSION" ~/postgres/lib/
+      shell: bash

.github/composite-actions/install-dependencies/action.yml

@@ -0,0 +1,12 @@
+name: 'Install Dependencies'
+runs:
+  using: "composite"
+  steps:
+    - name: Install Dependencies
+      run: |
+        cd ~
+        sudo apt-get update
+        curl https://packages.microsoft.com/keys/microsoft.asc | sudo apt-key add -
+        curl https://packages.microsoft.com/config/ubuntu/20.04/prod.list | sudo tee /etc/apt/sources.list.d/msprod.list
+        sudo apt-get install uuid-dev openjdk-8-jre libicu-dev libxml2-dev openssl libssl-dev python-dev libossp-uuid-dev libpq-dev cmake pkg-config g++ build-essential bison mssql-tools unixodbc-dev
+      shell: bash

.github/composite-actions/install-extensions/action.yml

@@ -0,0 +1,21 @@
+name: 'Install Extensions'
+
+runs:
+  using: "composite"
+  steps:
+    - name: Install Extensions
+      run: |
+        cd ~
+        export PATH=/opt/mssql-tools/bin:$PATH
+        ~/postgres/bin/initdb -D ~/postgres/data/
+        ~/postgres/bin/pg_ctl -D ~/postgres/data/ -l logfile start
+        cd postgres/data
+        sudo sed -i "s/#listen_addresses = 'localhost'/listen_addresses = '*'/g" postgresql.conf
+        sudo sed -i "s/#shared_preload_libraries = ''/shared_preload_libraries = 'babelfishpg_tds'/g" postgresql.conf
+        ipaddress=$(ifconfig eth0 | grep 'inet ' | cut -d: -f2 | awk '{ print $2}')
+        sudo echo "host    all             all             $ipaddress/32            trust" >> pg_hba.conf
+        ~/postgres/bin/pg_ctl -D ~/postgres/data/ -l logfile restart
+        cd ~/work/babelfish_extensions/babelfish_extensions/
+        sudo ~/postgres/bin/psql -d postgres -U runner -v user="jdbc_user" -v db="jdbc_testdb" -f .github/scripts/create_extension.sql
+        sqlcmd -S localhost -U "jdbc_user" -P 12345678 -Q "SELECT @@version GO"
+      shell: bash

.github/workflows/dotnet-tests.yml

@@ -0,0 +1,60 @@
+name: Dotnet Framework Tests
+on: [push, pull_request]
+
+jobs:
+  run-babelfish-dotnet-tests:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        id: checkout
+
+      - name: Install Dependencies
+        id: install-dependencies
+        if: always()
+        uses: ./.github/composite-actions/install-dependencies
+
+      - name: Build Modified Postgres
+        id: build-modified-postgres
+        if: always() && steps.install-dependencies.outcome == 'success'
+        uses: ./.github/composite-actions/build-modified-postgres
+
+      - name: Compile ANTLR
+        id: compile-antlr
+        if: always() && steps.build-modified-postgres.outcome == 'success'
+        uses: ./.github/composite-actions/compile-antlr
+
+      - name: Build Extensions
+        id: build-extensions
+        if: always() && steps.compile-antlr.outcome == 'success'
+        uses: ./.github/composite-actions/build-extensions
+
+      - name: Install Extensions
+        id: install-extensions
+        if: always() && steps.build-extensions.outcome == 'success'
+        uses: ./.github/composite-actions/install-extensions
+
+      - name: Install Dotnet
+        id: install-dotnet
+        if: always() && steps.install-extensions.outcome == 'success'
+        run: | 
+          cd ~
+          wget https://packages.microsoft.com/config/ubuntu/20.04/packages-microsoft-prod.deb -O packages-microsoft-prod.deb
+          sudo dpkg -i packages-microsoft-prod.deb
+          rm packages-microsoft-prod.deb
+          sudo apt-get install -y apt-transport-https
+          sudo apt-get install -y dotnet-sdk-5.0
+          sudo apt-get install -y apt-transport-https
+          sudo apt-get install -y aspnetcore-runtime-5.0
+
+      - name: Run Dotnet Tests
+        if: always() && steps.install-dotnet.outcome == 'success'
+        run: |
+          cd test/dotnet
+          dotnet build
+          babel_URL=localhost \
+            babel_port=1433 \
+            babel_databaseName=master \
+            babel_user=jdbc_user \
+            babel_password=12345678 \
+            testName="all---TestUDD.txt;TestChar.txt;TestSqlVariant.txt;TestVarChar.txt;TestTvp.txt;TestAuthentication.txt;TestText.txt" \
+            dotnet test