Oryx: Build with .NET 6 (#298)

* Oryx: Install dotnet 3.1 runtime

* fix tests

* build with .NET 6 + add tests

* add tests

* fix tests

* shellcheck: nit

4 files changed, 16 insertions, 10 deletions

diff --git a/src/oryx/devcontainer-feature.json b/src/oryx/devcontainer-feature.json
index 2596bd9..5c64344 100644
--- a/src/oryx/devcontainer-feature.json
+++ b/src/oryx/devcontainer-feature.json
@@ -1,6 +1,6 @@
 {
     "id": "oryx",
-    "version": "1.0.11",
+    "version": "1.0.12",
     "name": "Oryx",
     "description": "Installs the oryx CLI",
     "documentationURL": "https://github.com/devcontainers/features/tree/main/src/oryx",
diff --git a/src/oryx/install.sh b/src/oryx/install.sh
index 054983a..aa4af2c 100755
--- a/src/oryx/install.sh
+++ b/src/oryx/install.sh
@@ -116,9 +116,8 @@ echo "Installing Oryx..."
 # Ensure apt is in non-interactive to avoid prompts
 export DEBIAN_FRONTEND=noninteractive
 
-
 # Install dependencies
-check_packages git sudo curl ca-certificates apt-transport-https gnupg2 dirmngr libc-bin
+check_packages git sudo curl ca-certificates apt-transport-https gnupg2 dirmngr libc-bin moreutils
 
 if ! cat /etc/group | grep -e "^oryx:" > /dev/null 2>&1; then
     groupadd -r oryx
@@ -127,16 +126,23 @@ usermod -a -G oryx "${USERNAME}"
 
 # Required to decide if we want to clean up dotnet later.
 DOTNET_INSTALLATION_PACKAGE=""
+DOTNET_BINARY=""
+
+if dotnet --version > /dev/null ; then
+    DOTNET_BINARY=$(which dotnet)
+fi
 
-# Install dotnet unless available
-if ! dotnet --version > /dev/null ; then
-    echo "'dotnet' was not detected. Attempting to install the latest version of the dotnet sdk to build oryx."
+# Oryx needs to be built with .NET 6
+if [[ "${DOTNET_BINARY}" = "" ]] || [[ "$(dotnet --version)" != *"6"* ]] ; then
+    echo "'dotnet 6' was not detected. Attempting to install .NET 6 to build oryx."
     install_dotnet_using_apt
 
     if ! dotnet --version > /dev/null ; then
         echo "(!) Please install Dotnet before installing Oryx"
         exit 1
     fi
+
+    DOTNET_BINARY="/usr/bin/dotnet"
 fi
 
 BUILD_SCRIPT_GENERATOR=/usr/local/buildscriptgen
@@ -150,8 +156,8 @@ git clone --depth=1 https://github.com/microsoft/Oryx $GIT_ORYX
 
 $GIT_ORYX/build/buildSln.sh
 
-dotnet publish -property:ValidateExecutableReferencesMatchSelfContained=false -r linux-x64 -o ${BUILD_SCRIPT_GENERATOR} -c Release $GIT_ORYX/src/BuildScriptGeneratorCli/BuildScriptGeneratorCli.csproj
-dotnet publish -r linux-x64 -o ${BUILD_SCRIPT_GENERATOR} -c Release $GIT_ORYX/src/BuildServer/BuildServer.csproj
+${DOTNET_BINARY} publish -property:ValidateExecutableReferencesMatchSelfContained=false -r linux-x64 -o ${BUILD_SCRIPT_GENERATOR} -c Release $GIT_ORYX/src/BuildScriptGeneratorCli/BuildScriptGeneratorCli.csproj
+${DOTNET_BINARY} publish -r linux-x64 -o ${BUILD_SCRIPT_GENERATOR} -c Release $GIT_ORYX/src/BuildServer/BuildServer.csproj
 
 chmod a+x ${BUILD_SCRIPT_GENERATOR}/GenerateBuildScript
 
diff --git a/src/python/devcontainer-feature.json b/src/python/devcontainer-feature.json
index fbbf62c..b96511b 100644
--- a/src/python/devcontainer-feature.json
+++ b/src/python/devcontainer-feature.json
@@ -1,6 +1,6 @@
 {
   "id": "python",
-  "version": "1.0.14",
+  "version": "1.0.15",
   "name": "Python",
   "documentationURL": "https://github.com/devcontainers/features/tree/main/src/python",
   "description": "Installs the provided version of Python, as well as PIPX, and other common Python utilities.  JupyterLab is conditionally installed with the python feature. Note: May require source code compilation.",
diff --git a/src/python/install.sh b/src/python/install.sh
index 79ab7de..d823cc9 100755
--- a/src/python/install.sh
+++ b/src/python/install.sh
@@ -17,7 +17,7 @@ export PIPX_HOME=${PIPX_HOME:-"/usr/local/py-utils"}
 
 USERNAME=${USERNAME:-"automatic"}
 UPDATE_RC=${UPDATE_RC:-"true"}
-USE_ORYX_IF_AVAILABLE=${USE_ORYX_IF_AVAILABLE:-"true"}
+USE_ORYX_IF_AVAILABLE=${USEORYXIFAVAILABLE:-"true"}
 
 INSTALL_JUPYTERLAB=${INSTALLJUPYTERLAB:-"false"}
 CONFIGURE_JUPYTERLAB_ALLOW_ORIGIN=${CONFIGUREJUPYTERLABALLOWORIGIN:-""}