Modify shell scripts to pass shellcheck --severity=warning

.github/workflows/shellcheck.yml

@@ -0,0 +1,20 @@
+name: Shellcheck
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+  merge_group:
+  workflow_dispatch:
+
+jobs:
+  shellcheck:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install shellcheck
+        run: sudo apt update && sudo apt install --assume-yes shellcheck
+
+      - name: Run shellcheck
+        run: find . -name \*.sh -o -name \*.sh.template  | xargs shellcheck --severity=warning

build.sh

@@ -29,7 +29,8 @@ function FirstJsonValue {
 
 # If dotnet CLI is installed globally and it matches requested version, use for execution
 if [ -x "$(command -v dotnet)" ] && dotnet --version &>/dev/null; then
-    export DOTNET_EXE="$(command -v dotnet)"
+    DOTNET_EXE="$(command -v dotnet)"
+    export DOTNET_EXE
 else
     # Download install script
     DOTNET_INSTALL_FILE="$TEMP_DIRECTORY/dotnet-install.sh"

instrument.sh

@@ -169,4 +169,4 @@ if [ "$ENABLE_PROFILING" = "true" ]; then
   fi
 fi
 
-$@
+exec "$@"

nuget/OpenTelemetry.AutoInstrumentation/contentFiles/any/any/instrument.sh

@@ -1,16 +1,17 @@
 #!/bin/sh
 
-BASE_PATH="$(cd $(dirname "$0") && pwd)"
+BASE_PATH="$(cd "$(dirname "$0")" && pwd)"
 
 # Settings for .NET
 export ASPNETCORE_HOSTINGSTARTUPASSEMBLIES=OpenTelemetry.AutoInstrumentation.AspNetCoreBootstrapper
 export CORECLR_ENABLE_PROFILING=1
 export CORECLR_PROFILER="{918728DD-259F-4A6A-AC2B-B85E1B658318}"
-export CORECLR_PROFILER_PATH=$(ls ${BASE_PATH}/OpenTelemetry.AutoInstrumentation.Native.*)
+CORECLR_PROFILER_PATH="$(ls ${BASE_PATH}/OpenTelemetry.AutoInstrumentation.Native.*)"
+export CORECLR_PROFILER_PATH
 export DOTNET_STARTUP_HOOKS=${BASE_PATH}/OpenTelemetry.AutoInstrumentation.StartupHook.dll
 
 # Settings for OpenTelemetry
 export OTEL_DOTNET_AUTO_HOME=${BASE_PATH}
 export OTEL_DOTNET_AUTO_RULE_ENGINE_ENABLED=false
 
-$@
+exec "$@"

scripts/format-native.sh

@@ -1,4 +1,5 @@
-#!/bin/sh
+#!/bin/bash
+set -e
 
 SCRIPT_DIR=$(cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd)
 cd $SCRIPT_DIR/..
@@ -31,7 +32,7 @@ else
 fi
 
 # files to format
-NATIVE_FILES=$(find . -iname *.cpp -o -iname *.hpp -iname *.h -iname *.inc | grep -v ./packages | grep -v ./src/OpenTelemetry.AutoInstrumentation.Native/lib)
+NATIVE_FILES=$(find . -iname "*.cpp" -o -iname "*.hpp" -iname "*.h" -iname "*.inc" | grep -v ./packages | grep -v ./src/OpenTelemetry.AutoInstrumentation.Native/lib)
 
 # clang-format
 echo "$NATIVE_FILES" | xargs "./bin/artifacts/clang-format$EXT" -style=file -i