ci: Do not use single-file builds for MUSL

Single-file builds incur a performance cost. Mainly because the runtime
must extract the contents of the C# application to a temp directory in
order for it to run. In a Docker container, single-file offers no
tangible benefit because the user isn't interacting directly with those
files.

To gain some performance improvement, single-file is disabled for MUSL
builds. Furthermore, the docker image is reconfigured to place the
Recyclarr binary files in a different directory. Previously, as a
single-file binary, it was placed in the container at `/usr/local/bin`,
but now that it is a multiple-file application, it now lives in
`/app/recyclarr`.

.github/workflows/build.yml

@@ -70,9 +70,14 @@ jobs:
         with:
           dotnet-version: ${{ env.dotnetVersion }}
 
+      - name: Determine if single file build or not
+        if: contains(matrix.runtime, 'musl')
+        id: single_file
+        run: echo '::set-output name=arg::-noSingleFile'
+
       - name: Publish
         shell: pwsh
-        run: ci/Publish.ps1 ${{ matrix.runtime }}
+        run: ci/Publish.ps1 ${{ matrix.runtime }} ${{ steps.single_file.outputs.arg }}
 
       - name: Upload Artifacts
         uses: actions/upload-artifact@v3

ci/Publish.ps1

@@ -1,18 +1,26 @@
 [CmdletBinding()]
 param (
     [Parameter(Mandatory = $true)]
-    [string] $runtime
+    [string] $runtime,
+    [Parameter()]
+    [switch] $noSingleFile
 )
 
 $ErrorActionPreference = "Stop"
 
+if (-not $noSingleFile) {
+    $singleFileArgs = @(
+        "--self-contained=true"
+        "-p:PublishSingleFile=true"
+        "-p:IncludeNativeLibrariesForSelfExtract=true"
+        "-p:PublishReadyToRunComposite=true"
+        "-p:PublishReadyToRunShowWarnings=true"
+        "-p:EnableCompressionInSingleFile=true"
+    )
+}
+
 dotnet publish src\Recyclarr `
     --output publish\$runtime `
     --configuration Release `
     --runtime $runtime `
-    --self-contained true `
-    -p:PublishSingleFile=true `
-    -p:IncludeNativeLibrariesForSelfExtract=true `
-    -p:PublishReadyToRunComposite=true `
-    -p:PublishReadyToRunShowWarnings=true `
-    -p:EnableCompressionInSingleFile=true
+    $singleFileArgs

docker/Dockerfile

@@ -16,7 +16,8 @@ RUN ./build.sh
 FROM alpine AS final
 
 # Required by environment and/or dotnet
-ENV RECYCLARR_APP_DATA=/config \
+ENV PATH="${PATH}:/app/recyclarr" \
+    RECYCLARR_APP_DATA=/config \
     CRON_SCHEDULE="@daily" \
     DOTNET_BUNDLE_EXTRACT_BASE_DIR=/tmp/.net \
     # The GLOBALIZATION variable is so that we do not need libicu installed (saves us ~40MB).
@@ -26,7 +27,7 @@ RUN set -ex; \
     apk add --no-cache bash libstdc++ tzdata supercronic; \
     mkdir -p "$DOTNET_BUNDLE_EXTRACT_BASE_DIR" && chmod 777 "$DOTNET_BUNDLE_EXTRACT_BASE_DIR";
 
-COPY --chmod=555 --from=build /build/recyclarr /usr/local/bin
+COPY --from=build /build/publish /app/recyclarr/
 COPY --chmod=555 ./scripts/prod/*.sh /
 
 USER 1000:1000

docker/scripts/build/build-using-clone.sh

@@ -1,8 +1,7 @@
 #!/usr/bin/env bash
 set -ex
 
+# Do not shallow clone because gitversion needs history!
 git clone -b $BUILD_FROM_BRANCH "https://github.com/$REPOSITORY.git" source
-cd source
 
-pwsh ./ci/Publish.ps1 $runtime
-cp ./publish/$runtime/recyclarr ..
+dotnet publish source/src/Recyclarr -o publish -c Release -r $runtime

docker/scripts/build/build-using-release.sh

@@ -11,4 +11,4 @@ fi
 
 # Download and extract the recyclarr binary from the release
 wget --quiet -O recyclarr.zip "https://github.com/$REPOSITORY/releases/$download_path/recyclarr-$runtime.zip"
-unzip recyclarr.zip
+unzip recyclarr.zip -d publish

docker/scripts/build/build.sh

@@ -14,3 +14,5 @@ if [ -z "$BUILD_FROM_BRANCH" ]; then
 else
     . ./build-using-clone.sh
 fi
+
+chmod a+rx publish/recyclarr