Oryx - Switch to .NET 7 (#522)

* Oryx - Switch to .NET 7

* fix test ; add test

* fix test - back compat

src/oryx/devcontainer-feature.json

 {
     "id": "oryx",
-    "version": "1.0.13",
+    "version": "1.1.0",
     "name": "Oryx",
     "description": "Installs the oryx CLI",
     "documentationURL": "https://github.com/devcontainers/features/tree/main/src/oryx",
@@ -14,6 +14,7 @@
         "PATH": "/usr/local/oryx:${PATH}"
     },
     "installsAfter": [
-        "ghcr.io/devcontainers/features/common-utils"
+        "ghcr.io/devcontainers/features/common-utils",
+        "ghcr.io/devcontainers/features/dotnet"
     ]
 }

src/oryx/install.sh

@@ -74,7 +74,7 @@ install_dotnet_using_apt() {
     echo "Attempting to auto-install dotnet..."
     install_from_microsoft_feed=false
     apt_get_update
-    DOTNET_INSTALLATION_PACKAGE="dotnet6"
+    DOTNET_INSTALLATION_PACKAGE="dotnet7"
     apt-get -yq install $DOTNET_INSTALLATION_PACKAGE || install_from_microsoft_feed="true"
 
     if [ "${install_from_microsoft_feed}" = "true" ]; then
@@ -82,7 +82,7 @@ install_dotnet_using_apt() {
         curl -sSL ${MICROSOFT_GPG_KEYS_URI} | gpg --dearmor > /usr/share/keyrings/microsoft-archive-keyring.gpg
         echo "deb [arch=${architecture} signed-by=/usr/share/keyrings/microsoft-archive-keyring.gpg] https://packages.microsoft.com/repos/microsoft-${ID}-${VERSION_CODENAME}-prod ${VERSION_CODENAME} main" > /etc/apt/sources.list.d/microsoft.list
         apt-get update -y
-        DOTNET_INSTALLATION_PACKAGE="dotnet-sdk-6.0"
+        DOTNET_INSTALLATION_PACKAGE="dotnet-sdk-7.0"
         DOTNET_SKIP_FIRST_TIME_EXPERIENCE="true" apt-get install -yq $DOTNET_INSTALLATION_PACKAGE
     fi
 
@@ -132,9 +132,9 @@ if dotnet --version > /dev/null ; then
     DOTNET_BINARY=$(which dotnet)
 fi
 
-# 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."
+# Oryx needs to be built with .NET 7
+if [[ "${DOTNET_BINARY}" = "" ]] || [[ "$(dotnet --version)" != *"7"* ]] ; then
+    echo "'dotnet 7' was not detected. Attempting to install .NET 7 to build oryx."
     install_dotnet_using_apt
 
     if ! dotnet --version > /dev/null ; then
@@ -154,7 +154,11 @@ mkdir -p ${ORYX}
 
 git clone --depth=1 https://github.com/microsoft/Oryx $GIT_ORYX
 
-$GIT_ORYX/build/buildSln.sh
+SOLUTION_FILE_NAME="Oryx.sln"
+echo "Building solution '$SOLUTION_FILE_NAME'..."
+
+cd $GIT_ORYX
+${DOTNET_BINARY} build "$SOLUTION_FILE_NAME" -c Debug
 
 ${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

test/oryx/install_prev_dotnet_and_oryx.sh

+#!/bin/bash
+
+set -e
+
+# Optional: Import test library
+source dev-container-features-test-lib
+
+check "Oryx version" oryx --version
+check "Dotnet is not removed if it is not installed by the Oryx Feature" dotnet --version
+
+# Install platforms with oryx build tool
+check "oryx-install-dotnet-2.1" oryx prep --skip-detection --platforms-and-versions dotnet=2.1.30
+check "dotnet-2-installed-by-oryx" ls /opt/dotnet/ | grep 2.1
+
+check "oryx-install-nodejs-12.22.11" oryx prep --skip-detection --platforms-and-versions nodejs=12.22.11
+check "nodejs-12.22.11-installed-by-oryx" ls /opt/nodejs/ | grep 12.22.11
+
+check "oryx-install-php-7.3.25" oryx prep --skip-detection --platforms-and-versions php=7.3.25
+check "php-7.3.25-installed-by-oryx" ls /opt/php/ | grep 7.3.25
+
+check "oryx-install-java-12.0.2" oryx prep --skip-detection --platforms-and-versions java=12.0.2
+check "java-12.0.2-installed-by-oryx" ls /opt/java/ | grep 12.0.2
+
+# Replicates Oryx's behavior for universal image
+mkdir -p /opt/oryx
+echo "vso-focal" >> /opt/oryx/.imagetype
+
+mkdir -p /opt/dotnet/lts
+cp -R /usr/local/dotnet/current/dotnet /opt/dotnet/lts
+cp -R /usr/local/dotnet/current/LICENSE.txt /opt/dotnet/lts
+cp -R /usr/local/dotnet/current/ThirdPartyNotices.txt /opt/dotnet/lts
+
+# Install platforms with oryx build tool
+check "oryx-install-dotnet-2.1-universal" oryx prep --skip-detection --platforms-and-versions dotnet=2.1.30
+check "dotnet-2-installed-by-oryx-universal" ls /opt/dotnet/ | grep 2.1
+
+check "oryx-install-nodejs-12.22.11-universal" oryx prep --skip-detection --platforms-and-versions nodejs=12.22.11
+check "nodejs-12.22.11-installed-by-oryx-universal" ls /opt/nodejs/ | grep 12.22.11
+
+check "oryx-install-php-7.3.25-universal" oryx prep --skip-detection --platforms-and-versions php=7.3.25
+check "php-7.3.25-installed-by-oryx-universal" ls /opt/php/ | grep 7.3.25
+
+check "oryx-install-java-12.0.2-universal" oryx prep --skip-detection --platforms-and-versions java=12.0.2
+check "java-12.0.2-installed-by-oryx-universal" ls /opt/java/ | grep 12.0.2
+
+# Report result
+reportResults

test/oryx/scenarios.json

 {
     "install_dotnet_and_oryx": {
+        "image": "ubuntu:focal",
+        "features": {
+            "dotnet": {
+                "version": "7",
+                "installUsingApt": "false"
+            },
+            "oryx": {}
+        }
+    },
+    "install_prev_dotnet_and_oryx": {
         "image": "ubuntu:focal",
         "features": {
             "dotnet": {