add -SharedRuntime switch support

scripts/obtain/dotnet-install.ps1

@@ -29,6 +29,9 @@
     Default: <auto> - this value represents currently running OS architecture
     Architecture of dotnet binaries to be installed.
     Possible values are: <auto>, x64 and x86
+.PARAMETER SharedRuntime
+    Default: false
+    Installs just the shared runtime bits, not the entire SDK
 .PARAMETER DebugSymbols
     If set the installer will include symbols in the installation.
 .PARAMETER DryRun
@@ -51,6 +54,7 @@ param(
    [string]$Version="Latest",
    [string]$InstallDir="<auto>",
    [string]$Architecture="<auto>",
+   [switch]$SharedRuntime,
    [switch]$DebugSymbols, # TODO: Switch does not work yet. Symbols zip is not being uploaded yet.
    [switch]$DryRun,
    [switch]$NoPath,
@@ -114,7 +118,14 @@ function Get-Version-Info-From-Version-Text([string]$VersionText) {
 function Get-Latest-Version-Info([string]$AzureFeed, [string]$AzureChannel, [string]$CLIArchitecture) {
     Say-Invocation $MyInvocation
 
-    $VersionFileUrl = "$AzureFeed/$AzureChannel/dnvm/latest.win.$CLIArchitecture.version"
+    $VersionFileUrl = $null
+    if ($SharedRuntime) {
+        $VersionFileUrl = "$AzureFeed/$AzureChannel/dnvm/latest.sharedfx.win.$CLIArchitecture.version"
+    }
+    else {
+        $VersionFileUrl = "$AzureFeed/$AzureChannel/dnvm/latest.win.$CLIArchitecture.version"
+    }
+    
     $Response = Invoke-WebRequest -UseBasicParsing $VersionFileUrl
 
     switch ($Response.Headers.'Content-Type'){
@@ -160,7 +171,13 @@ function Get-Download-Links([string]$AzureFeed, [string]$AzureChannel, [string]$
     Say-Invocation $MyInvocation
     
     $ret = @()
-    $files = @("dotnet-dev")
+    $files = @()
+    if ($SharedRuntime) {
+        $files += "dotnet";
+    }
+    else {
+        $files += "dotnet-dev";
+    }
     
     foreach ($file in $files) {
         $PayloadURL = "$AzureFeed/$AzureChannel/Binaries/$SpecificVersion/$file-win-$CLIArchitecture.$SpecificVersion.zip"

scripts/obtain/dotnet-install.sh

@@ -269,7 +269,12 @@ get_latest_version_info() {
     
     local osname=$(get_current_os_name)
     
-    local version_file_url="$azure_feed/$azure_channel/dnvm/latest.$osname.$normalized_architecture.version"
+    local version_file_url=null
+    if [ "$shared_runtime" = true ]; then
+        version_file_url="$azure_feed/$azure_channel/dnvm/latest.sharedfx.$osname.$normalized_architecture.version"
+    else
+        version_file_url="$azure_feed/$azure_channel/dnvm/latest.$osname.$normalized_architecture.version"
+    fi
     say_verbose "get_latest_version_info: latest url: $version_file_url"
     
     download $version_file_url
@@ -350,7 +355,13 @@ construct_download_link() {
     
     local osname=$(get_current_os_name)
     
-    local download_link="$azure_feed/$azure_channel/Binaries/$specific_version/dotnet-dev-$osname-$normalized_architecture.$specific_version.tar.gz"
+    local download_link=null
+    if [ "$shared_runtime" = true ]; then
+        download_link="$azure_feed/$azure_channel/Binaries/$specific_version/dotnet-$osname-$normalized_architecture.$specific_version.tar.gz"
+    else
+        download_link="$azure_feed/$azure_channel/Binaries/$specific_version/dotnet-dev-$osname-$normalized_architecture.$specific_version.tar.gz"
+    fi
+    
     echo "$download_link"
     return 0
 }
@@ -540,6 +551,7 @@ dry_run=false
 no_path=false
 azure_feed="https://dotnetcli.blob.core.windows.net/dotnet"
 verbose=false
+shared_runtime=false
 
 while [ $# -ne 0 ]
 do
@@ -561,6 +573,9 @@ do
             shift
             architecture="$1"
             ;;
+        --shared-runtime|-[Ss]hared[Rr]untime)
+            shared_runtime=true
+            ;;
         --debug-symbols|-[Dd]ebug[Ss]ymbols)
             debug_symbols=true
             ;;
@@ -594,6 +609,8 @@ do
             echo "      -InstallDir"
             echo "  --architecture <ARCHITECTURE>  Architecture of .NET Tools. Currently only x64 is supported."
             echo "      --arch,-Architecture,-Arch"
+            echo "  --shared-runtime               Installs just the shared runtime bits, not the entire SDK."
+            echo "      -SharedRuntime"
             echo "  --debug-symbols,-DebugSymbols  Specifies if symbols should be included in the installation."
             echo "  --dry-run,-DryRun              Do not perform installation. Display download link."
             echo "  --no-path, -NoPath             Do not set PATH for the current process."