Upgraded to 20.04

Dockerfile

@@ -1,21 +1,19 @@
-FROM ubuntu:bionic
-
-
-RUN apt-get update && \
-DEBIAN_FRONTEND=noninteractive apt-get install -y gnupg wget 
+FROM ubuntu:focal
 
 RUN \
-echo "deb http://apt.llvm.org/bionic/ llvm-toolchain-bionic-9 main" >> /etc/apt/sources.list && \
-wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key > llvm_key && apt-key add llvm_key
+apt-get update && apt-get install -y software-properties-common
 
-RUN \
+RUN add-apt-repository universe && \
+apt-get update && apt install -y python2 curl && \
+curl https://bootstrap.pypa.io/get-pip.py --output get-pip.py  && \
+python2 get-pip.py 
+
+RUN  \
 apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y \
- libllvm-9-ocaml-dev libllvm9 llvm-9 llvm-9-dev llvm-9-doc llvm-9-examples llvm-9-runtime \
- clang-9 clang-tools-9 clang-9-doc libclang-common-9-dev libclang-9-dev libclang1-9 clang-format-9 python-clang-9 clangd-9 \
- libfuzzer-9-dev \
- lldb-9 \
- lld-9 \
- libc++-9-dev libc++abi-9-dev \
+ clang \
+ clang-tools \
+ libclang-dev \
+ clangd clang-format \
  autoconf \
  automake \
  bsdmainutils \
@@ -48,7 +46,6 @@ apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y \
  ninja-build \
  openssh-server \
  pkg-config \
- python-pip \
  screen \
  silversearcher-ag \
  sudo \
@@ -75,7 +72,7 @@ apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y \
  mono-runtime \
  libfsharp-core4.3-cil \
  libmono-system-net-http4.0-cil \
- mono-reference-assemblies-4.0 \
+ mono-devel \
  bash-completion \
  libpq-dev \
  libpqxx-dev \
@@ -83,23 +80,11 @@ apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y \
  parallel \
 # aws tools
  awscli \
+ ccache \
  && rm -rf /var/lig/apt/lists/*
 
 
-run \
-update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-9 100; \
-update-alternatives --install /usr/bin/clang clang /usr/bin/clang-9 100; \
-update-alternatives --install /usr/bin/clangd clangd /usr/bin/clangd-9 100; \
-update-alternatives --config clang; \
-update-alternatives --config clang++
-
-run update-alternatives --config clangd
-
-# this is done here so that ccache sees clang++ installed, not clang-9
-RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y ccache 
-
-
-run pip install pybars3 paramiko mkdocs
+run pip2 install pybars3 paramiko mkdocs
 run npm install -g npx
 
 # fix locale so we can run tmux
@@ -107,7 +92,7 @@ run sed -i 's/# en_US.UTF-8 UTF-8/en_US.UTF-8 UTF-8/' /etc/locale.gen
 ENV LANG='en_US.utf8' LANGUAGE='en_US:en' LC_ALL='en_US.utf8' TZ='America/Chicago'
 run locale-gen
 
-# expand libc sources
+# expand libc sources for ease fo debugging
 run cd /usr/src/glibc ; tar xvf glibc-*.tar.xz
 
 # build cgdb (the version shipped with ubuntu is too old)
@@ -139,7 +124,7 @@ imap jj <Esc> \n\
 # for netcore3 reference https://github.com/dotnet/dotnet-docker/blob/master/3.0/sdk/bionic/amd64/Dockerfile
 # taken from https://dotnet.microsoft.com/learn/dotnet/hello-world-tutorial/install
 
-RUN wget -q https://packages.microsoft.com/config/ubuntu/18.04/packages-microsoft-prod.deb -O packages-microsoft-prod.deb \
+RUN wget -q https://packages.microsoft.com/config/ubuntu/20.04/packages-microsoft-prod.deb -O packages-microsoft-prod.deb \
     && sudo dpkg -i packages-microsoft-prod.deb \
     && sudo apt-get update \
     && sudo apt-get install apt-transport-https -y \
@@ -157,19 +142,19 @@ ENV DOTNET_RUNNING_IN_CONTAINER=true \
 # Trigger first run experience by running arbitrary cmd
 RUN dotnet help
 
-# Install PowerShell global tool
-ENV POWERSHELL_VERSION=7.0.0-preview.4 \
-    POWERSHELL_DISTRIBUTION_CHANNEL=PSDocker-DotnetCoreSDK-Ubuntu-18.04
+# Install PowerShell global too# l
+# ENV POWERSHELL_VERSION=7.0.0-preview.4 \
+#     POWERSHELL_DISTRIBUTION_CHANNEL=PSDocker-DotnetCoreSDK-Ubuntu-18.04
 
-RUN curl -SL --output PowerShell.Linux.x64.$POWERSHELL_VERSION.nupkg https://pwshtool.blob.core.windows.net/tool/$POWERSHELL_VERSION/PowerShell.Linux.x64.$POWERSHELL_VERSION.nupkg \
-    && powershell_sha512='0fb0167e13560371bffec38a4a87bf39377fa1a5cc39b3a078ddec8803212bede73e5821861036ba5c345bd55c74703134c9b55c49385f87dae9e2de9239f5d9' \
-    && echo "$powershell_sha512  PowerShell.Linux.x64.$POWERSHELL_VERSION.nupkg" | sha512sum -c - \
-    && mkdir -p /usr/share/powershell \
-    && dotnet tool install --add-source / --tool-path /usr/share/powershell --version $POWERSHELL_VERSION PowerShell.Linux.x64 \
-    && rm PowerShell.Linux.x64.$POWERSHELL_VERSION.nupkg \
-    && ln -s /usr/share/powershell/pwsh /usr/bin/pwsh \
-    # To reduce image size, remove the copy nupkg that nuget keeps.
-    && find /usr/share/powershell -print | grep -i '.*[.]nupkg$' | xargs rm	
+# RUN curl -SL --output PowerShell.Linux.x64.$POWERSHELL_VERSION.nupkg https://pwshtool.blob.core.windows.net/tool/$POWERSHELL_VERSION/PowerShell.Linux.x64.$POWERSHELL_VERSION.nupkg \
+#     && powershell_sha512='0fb0167e13560371bffec38a4a87bf39377fa1a5cc39b3a078ddec8803212bede73e5821861036ba5c345bd55c74703134c9b55c49385f87dae9e2de9239f5d9' \
+#     && echo "$powershell_sha512  PowerShell.Linux.x64.$POWERSHELL_VERSION.nupkg" | sha512sum -c - \
+#     && mkdir -p /usr/share/powershell \
+#     && dotnet tool install --add-source / --tool-path /usr/share/powershell --version $POWERSHELL_VERSION PowerShell.Linux.x64 \
+#     && rm PowerShell.Linux.x64.$POWERSHELL_VERSION.nupkg \
+#     && ln -s /usr/share/powershell/pwsh /usr/bin/pwsh \
+#     # To reduce image size, remove the copy nupkg that nuget keeps.
+#     && find /usr/share/powershell -print | grep -i '.*[.]nupkg$' | xargs rm	
 
 #vsdbg for remote .net core debugging	
 RUN wget https://aka.ms/getvsdbgsh -O - 2>/dev/null | /bin/sh /dev/stdin -v latest -l ~/vsdbg
@@ -183,9 +168,9 @@ copy sqlite-version-3.26.0.zip extension-functions.c build_sqlite.sh /
 run ./build_sqlite.sh && rm -rf /sqlite-version-3.26.0/
 
 
-#git-lfs
-copy git-lfs /usr/bin/
-run chmod +x /usr/bin/git-lfs && git lfs install
+# #git-lfs
+# copy git-lfs /usr/bin/
+# run chmod +x /usr/bin/git-lfs && git lfs install
 
 ##### Onload Stuff #####