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Fix dnx dispatcher to resolve install dir through symlinks #54710

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Merged
mthalman merged 2 commits into from
Jun 15, 2026
Merged

Fix dnx dispatcher to resolve install dir through symlinks #54710

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7b0adce
Fix dnx dispatcher to resolve install dir through symlinks
mthalman Jun 11, 2026
76b9a55
Use POSIX form `tail -n 1` in dnx dispatcher script
mthalman Jun 11, 2026
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23 changes: 19 additions & 4 deletions src/Layout/redist/dnx
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Original file line number Diff line number Diff line change
Expand Up @@ -3,8 +3,23 @@
# Licensed to the .NET Foundation under one or more agreements.
# The .NET Foundation licenses this file to you under the MIT license.

DOTNET="$(dirname "$0")/dotnet"
SDK_VERSION=$("$DOTNET" --list-sdks | tail -1 | cut -d' ' -f1)
SDK_PATH="$(dirname "$0")/sdk/$SDK_VERSION/dotnet.dll"
# Resolve symlinks portably (macOS's BSD readlink does not support -f).
SCRIPT="$0"
while [ -L "$SCRIPT" ]; do
LINK=$(readlink "$SCRIPT")
case "$LINK" in
/*) SCRIPT="$LINK" ;;
*) SCRIPT="$(dirname "$SCRIPT")/$LINK" ;;
esac
done
DIR="$(cd "$(dirname "$SCRIPT")" && pwd -P)"

"$DOTNET" exec "$SDK_PATH" dnx "$@"
DOTNET="$DIR/dotnet"
SDK_VERSION=$("$DOTNET" --list-sdks | tail -n 1 | cut -d' ' -f1)
if [ -z "$SDK_VERSION" ]; then
echo "Error: dnx requires a .NET SDK to be installed, but none was found." >&2
exit 1
fi
SDK_PATH="$DIR/sdk/$SDK_VERSION/dotnet.dll"

exec "$DOTNET" exec "$SDK_PATH" dnx "$@"
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