Use dotnet-install.sh in .NET feature (#628)feature_dotnet_2.0.0

* Use dotnet-install.sh in .NET feature

* Use latest.version files

* Cleanup runtime args

* Use latest.version files in tests as well

* Improve tests, remove code duplication

* Add stderr helper

* Validate version inputs

* Use suggested description

Co-authored-by: Samruddhi Khandale <samruddhikhandale@github.com>

* Shorter version description

Co-authored-by: Samruddhi Khandale <samruddhikhandale@github.com>

* Shorter version description

Co-authored-by: Samruddhi Khandale <samruddhikhandale@github.com>

* Clean up apt lists

* Verify 7.0 is latest

* Fix PATH, add test for .NET global tools

* Include a copy of dotnet-install.sh in the Feature

* Configure useful env variables

* Use stringly typed booleans

* Keep imperative writing style in option hints

* Update maintainers

Co-authored-by: Samruddhi Khandale <samruddhikhandale@github.com>

* Move dotnet-install.sh into a vendor directory

* Refactor variables

* Amend

* Amend 2

* Use default options from devcontainer-feature.json

* Add back variables

* Fix shellchek warning in fetch_latest_sdk_version

* Inline install_version function

* Fix ShellCheck warnings

* Improve CSV parsing

* Default to latest when configuring an empty version

* Add support for runtime-only configurations

* Move 'none' check higher up

* Deduplicate helper functions, sort into files

* Address the user more directly in NOTES

* Remove unnecessary defaults

* Replace feature -> Feature

Co-authored-by: Samruddhi Khandale <samruddhikhandale@github.com>

* Add update-dotnet-install-script workflow

* Apply suggestions from code review

Co-authored-by: Samruddhi Khandale <samruddhikhandale@github.com>

* Don't skip ci for automated script update

---------

Co-authored-by: Samruddhi Khandale <samruddhikhandale@github.com>

1 files changed, 42 insertions, 0 deletions

diff --git a/src/dotnet/scripts/string-helpers.sh b/src/dotnet/scripts/string-helpers.sh
new file mode 100644
index 0000000..35b4017
--- /dev/null
+++ b/src/dotnet/scripts/string-helpers.sh
@@ -0,0 +1,42 @@
+#!/bin/bash
+#-------------------------------------------------------------------------------------------------------------
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License. See https://go.microsoft.com/fwlink/?linkid=2090316 for license information.
+#-------------------------------------------------------------------------------------------------------------
+#
+# Docs: https://github.com/devcontainers/features/tree/main/src/dotnet
+# Maintainer: The Dev Container spec maintainers
+
+# Removes leading and trailing whitespace from an input string
+# Usage: trim_whitespace <text>
+trim_whitespace() {
+    text="$1"
+
+    # Remove leading spaces
+    while [ "${text:0:1}" == " " ]; do
+        text="${text:1}"
+    done
+
+    # Remove trailing spaces
+    while [ "${text: -1}" == " " ]; do
+        text="${text:0:-1}"
+    done
+
+    echo "$text"
+}
+
+# Splits comma-separated values into an array while ignoring empty entries
+# Usage: split_csv <comma-separated-values>
+split_csv() {
+    local -a values=()
+    while IFS="," read -ra entries; do
+        for entry in "${entries[@]}"; do
+            entry="$(trim_whitespace "$entry")"
+            if [ -n "$entry" ]; then
+                values+=("$entry")
+            fi
+        done
+    done <<< "$1"
+
+    echo "${values[@]}"
+}
\ No newline at end of file