From 7228a96d49c8090ec5547ffdf0d6fd2324d7a3f2 Mon Sep 17 00:00:00 2001
From: jbeisner <jbeisner@microsoft.com>
Date: Fri, 16 Mar 2018 19:56:02 +0000
Subject: [PATCH 1/3] The '-n' option to 'cp' does not exist for Alpine; don't
 use "$ID.$VERSION_ID" for the error message.

---
 scripts/obtain/dotnet-install.sh | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/scripts/obtain/dotnet-install.sh b/scripts/obtain/dotnet-install.sh
index 04b5a38203..1a32fa2c77 100755
--- a/scripts/obtain/dotnet-install.sh
+++ b/scripts/obtain/dotnet-install.sh
@@ -139,7 +139,7 @@ get_linux_platform_name() {
         fi
     fi
 
-    say_verbose "Linux specific platform name and version could not be detected: $ID.$VERSION_ID"
+    say_verbose "Linux specific platform name and version could not be detected: UName = $uname"
     return 1
 }
 
@@ -163,7 +163,7 @@ get_current_os_name() {
         fi
     fi
 
-    say_err "OS name could not be detected: $ID.$VERSION_ID"
+    say_err "OS name could not be detected: UName = $uname"
     return 1
 }
 
@@ -188,7 +188,7 @@ get_legacy_os_name() {
         fi
     fi
 
-    say_verbose "Distribution specific OS name and version could not be detected: $ID.$VERSION_ID"
+    say_verbose "Distribution specific OS name and version could not be detected: UName = $uname"
     return 1
 }
 
@@ -570,7 +570,7 @@ copy_files_or_dirs_from_list() {
     local root_path="$(remove_trailing_slash "$1")"
     local out_path="$(remove_trailing_slash "$2")"
     local override="$3"
-    local override_switch=$(if [ "$override" = false ]; then printf -- "-n"; fi)
+    local override_switch=$(if [ "$override" = false ] && [[ $linux_platform_name != 'alpine'* ]]; then printf -- "-n"; fi)
 
     cat | uniq | while read -r file_path; do
         local path="$(remove_beginning_slash "${file_path#$root_path}")"
@@ -878,7 +878,7 @@ do
             echo "          Possible values:"
             echo "          - dotnet     - the Microsoft.NETCore.App shared runtime"
             echo "          - aspnetcore - the Microsoft.AspNetCore.App shared runtime"
-            echo "  --skip-non-versioned-files         Skips non-versioned files if they already exist, such as the dotnet executable."
+            echo "  --skip-non-versioned-files         Skips non-versioned files if they already exist, such as the dotnet executable. (not supported for Alpine)"
             echo "      -SkipNonVersionedFiles"
             echo "  --dry-run,-DryRun                  Do not perform installation. Display download link."
             echo "  --no-path, -NoPath                 Do not set PATH for the current process."

From ef2621aff858de2759235171fee37dabaeaa9090 Mon Sep 17 00:00:00 2001
From: jbeisner <jbeisner@microsoft.com>
Date: Fri, 16 Mar 2018 22:01:16 +0000
Subject: [PATCH 2/3] Try "cp -R -u"  for alpine variants.

---
 scripts/obtain/dotnet-install.sh | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/scripts/obtain/dotnet-install.sh b/scripts/obtain/dotnet-install.sh
index 1a32fa2c77..216341a97d 100755
--- a/scripts/obtain/dotnet-install.sh
+++ b/scripts/obtain/dotnet-install.sh
@@ -145,13 +145,13 @@ get_linux_platform_name() {
 
 get_current_os_name() {
     eval $invocation
+    linux_platform_name="unknown"
 
     local uname=$(uname)
     if [ "$uname" = "Darwin" ]; then
         echo "osx"
         return 0
     elif [ "$uname" = "Linux" ]; then
-        local linux_platform_name
         linux_platform_name="$(get_linux_platform_name)" || { echo "linux" && return 0 ; }
 
         if [[ $linux_platform_name == "rhel.6" || $linux_platform_name == "alpine.3.6" ]]; then
@@ -570,7 +570,14 @@ copy_files_or_dirs_from_list() {
     local root_path="$(remove_trailing_slash "$1")"
     local out_path="$(remove_trailing_slash "$2")"
     local override="$3"
-    local override_switch=$(if [ "$override" = false ] && [[ $linux_platform_name != 'alpine'* ]]; then printf -- "-n"; fi)
+    local override_switch=$(
+        if [ "$override" = false ]; then
+            if [[ $linux_platform_name == 'alpine'* ]]; then 
+                printf -- "-u";
+            else
+                printf -- "-n";
+            fi
+        fi)
 
     cat | uniq | while read -r file_path; do
         local path="$(remove_beginning_slash "${file_path#$root_path}")"

From f97d234fcc2444ebb9230f094b0d66f5140a0307 Mon Sep 17 00:00:00 2001
From: jbeisner <jbeisner@microsoft.com>
Date: Fri, 16 Mar 2018 22:02:49 +0000
Subject: [PATCH 3/3] Fixing a comment...

---
 scripts/obtain/dotnet-install.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/obtain/dotnet-install.sh b/scripts/obtain/dotnet-install.sh
index 216341a97d..00a42d872c 100755
--- a/scripts/obtain/dotnet-install.sh
+++ b/scripts/obtain/dotnet-install.sh
@@ -885,7 +885,7 @@ do
             echo "          Possible values:"
             echo "          - dotnet     - the Microsoft.NETCore.App shared runtime"
             echo "          - aspnetcore - the Microsoft.AspNetCore.App shared runtime"
-            echo "  --skip-non-versioned-files         Skips non-versioned files if they already exist, such as the dotnet executable. (not supported for Alpine)"
+            echo "  --skip-non-versioned-files         Skips non-versioned files if they already exist, such as the dotnet executable."
             echo "      -SkipNonVersionedFiles"
             echo "  --dry-run,-DryRun                  Do not perform installation. Display download link."
             echo "  --no-path, -NoPath                 Do not set PATH for the current process."