Download SDK separately (unix)

# Conflicts:
#	azure-pipelines.yml
#	build.sh

.gitignore

@@ -210,3 +210,4 @@ obj-Skia/
 coc-settings.json
 .ccls-cache
 .ccls
+sdk

build.sh

@@ -20,55 +20,11 @@ SCRIPT_DIR=$(cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd)
 ###########################################################################
 
 BUILD_PROJECT_FILE="$SCRIPT_DIR/nukebuild/_build.csproj"
-TEMP_DIRECTORY="$SCRIPT_DIR//.tmp"
-
-DOTNET_GLOBAL_FILE="$SCRIPT_DIR//global.json"
-DOTNET_INSTALL_URL="https://raw.githubusercontent.com/dotnet/cli/master/scripts/obtain/dotnet-install.sh"
-DOTNET_CHANNEL="Current"
 
 export DOTNET_CLI_TELEMETRY_OPTOUT=1
 export DOTNET_SKIP_FIRST_TIME_EXPERIENCE=1
 export NUGET_XMLDOC_MODE="skip"
 
-###########################################################################
-# EXECUTION
-###########################################################################
-
-function FirstJsonValue {
-    perl -nle 'print $1 if m{"'$1'": "([^"\-]+)",?}' <<< ${@:2}
-}
-
-# If global.json exists, load expected version
-if [ -f "$DOTNET_GLOBAL_FILE" ]; then
-    DOTNET_VERSION=$(FirstJsonValue "version" $(cat "$DOTNET_GLOBAL_FILE"))
-    if [ "$DOTNET_VERSION" == ""  ]; then
-        unset DOTNET_VERSION
-    fi
-fi
-
-# If dotnet is installed locally, and expected version is not set or installation matches the expected version
-if [[ -x "$(command -v dotnet)" && (-z ${DOTNET_VERSION+x} || $(dotnet --version) == "$DOTNET_VERSION") || "$SKIP_DOTNET_DOWNLOAD" == "1" ]]; then
-    export DOTNET_EXE="$(command -v dotnet)"
-else
-    DOTNET_DIRECTORY="$TEMP_DIRECTORY/dotnet-unix"
-    export DOTNET_EXE="$DOTNET_DIRECTORY/dotnet"
-    
-    # Download install script
-    DOTNET_INSTALL_FILE="$TEMP_DIRECTORY/dotnet-install.sh"
-    mkdir -p "$TEMP_DIRECTORY"
-    curl -Lsfo "$DOTNET_INSTALL_FILE" "$DOTNET_INSTALL_URL"
-    chmod +x "$DOTNET_INSTALL_FILE"
-    
-    # Install by channel or version
-    if [ -z ${DOTNET_VERSION+x} ]; then
-        "$DOTNET_INSTALL_FILE" --install-dir "$DOTNET_DIRECTORY" --channel "$DOTNET_CHANNEL" --no-path
-    else
-        "$DOTNET_INSTALL_FILE" --install-dir "$DOTNET_DIRECTORY" --version "$DOTNET_VERSION" --no-path
-    fi
-fi
-
-export PATH=$DOTNET_DIRECTORY:$PATH
-
-echo "Microsoft (R) .NET Core SDK version $("$DOTNET_EXE" --version)"
+dotnet --info
 
-"$DOTNET_EXE" run --project "$BUILD_PROJECT_FILE" -- ${BUILD_ARGUMENTS[@]}
+dotnet run --project "$BUILD_PROJECT_FILE" -- ${BUILD_ARGUMENTS[@]}