Add first support for Linux arm64

.azure-pipelines/templates/linux/compile.yml

@@ -6,11 +6,18 @@ steps:
       version: 3.1.x
 
   - task: DotNetCoreCLI@2
-    displayName: Compile common code
+    displayName: Compile common code (amd64)
     inputs:
       command: build
       projects: 'Git-Credential-Manager.sln'
-      arguments: '--configuration=Linux$(configuration)'
+      arguments: '--configuration=Linux$(configuration) -r linux-x64'
+
+  - task: DotNetCoreCLI@2
+    displayName: Compile common code (arm64)
+    inputs:
+      command: build
+      projects: 'Git-Credential-Manager.sln'
+      arguments: '--configuration=Linux$(configuration) -r linux-arm64'
 
   - task: DotNetCoreCLI@2
     displayName: Run common unit tests

.github/workflows/build-installers.yml

@@ -26,7 +26,9 @@ jobs:
       run: dotnet restore --force
 
     - name: Build Linux Payloads
-      run: dotnet build -c Release src/linux/Packaging.Linux/Packaging.Linux.csproj
+      run: |
+        dotnet build -c Release -r linux-x64 src/linux/Packaging.Linux/Packaging.Linux.csproj 
+        dotnet build -c Release -r linux-arm64 src/linux/Packaging.Linux/Packaging.Linux.csproj 
 
     - name: Upload Installers
       uses: actions/upload-artifact@v2

.github/workflows/build-signed-deb.yml

@@ -23,7 +23,9 @@ jobs:
       run: dotnet restore --force
 
     - name: Build Linux Payloads
-      run: dotnet build -c Release src/linux/Packaging.Linux/Packaging.Linux.csproj
+      run: |
+        dotnet build -c Release -r linux-x64 src/linux/Packaging.Linux/Packaging.Linux.csproj
+        dotnet build -c Release -r linux-arm64 src/linux/Packaging.Linux/Packaging.Linux.csproj
 
     - name: Upload Installers
       uses: actions/upload-artifact@v2
@@ -90,4 +92,4 @@ jobs:
       with:
         name: DebianInstallerSigned
         path: |
-          Signed/*.deb
+          Signed/*.deb

.github/workflows/continuous-integration.yml

@@ -35,7 +35,9 @@ jobs:
 
     - name: Build Linux
       if: contains(matrix.os, 'ubuntu')
-      run: dotnet build --configuration LinuxRelease
+      run: |
+        dotnet build --configuration LinuxRelease -r linux-x64
+        dotnet build --configuration LinuxRelease -r linux-arm64
 
     - name: Build macOS
       if: contains(matrix.os, 'macos')

docs/development.md

@@ -49,6 +49,12 @@ To build from the command line, run:
 dotnet build -c LinuxDebug
 ```
 
+If you want to build for a specific architecture, you can provide `linux-x64` or `linux-arm64` as the runtime:
+
+```shell
+dotnet build -c LinuxDebug -r linux-arm64
+```
+
 You can find a copy of the Debian package (.deb) file in `out/linux/Packaging.Linux/deb/Debug`.
 
 The flat binaries can also be found in `out/linux/Packaging.Linux/payload/Debug`.

src/linux/Packaging.Linux/Packaging.Linux.csproj

@@ -19,8 +19,8 @@
   <Import Project="Sdk.targets" Sdk="Microsoft.NET.Sdk" />
 
   <Target Name="CoreCompile" DependsOnTargets="GetBuildVersion" Condition="'$(OSPlatform)'=='linux'">
-    <Message Text="$(MSBuildProjectDirectory)\build.sh --configuration='$(Configuration)' --version='$(BuildVersion)'" Importance="High" />
-    <Exec Command="$(MSBuildProjectDirectory)\build.sh --configuration='$(Configuration)' --version='$(BuildVersion)'" />
+    <Message Text="$(MSBuildProjectDirectory)\build.sh --configuration='$(Configuration)' --version='$(BuildVersion)' --runtime='$(RuntimeIdentifier)'" Importance="High" />
+    <Exec Command="$(MSBuildProjectDirectory)\build.sh --configuration='$(Configuration)' --version='$(BuildVersion)' --runtime='$(RuntimeIdentifier)'" />
   </Target>
 
   <Target Name="CoreClean">

src/linux/Packaging.Linux/build.sh

@@ -32,12 +32,33 @@ case "$i" in
     VERSION="${i#*=}"
     shift # past argument=value
     ;;
+    --runtime=*)
+    RUNTIME="${i#*=}"
+    shift # past argument=value
+    ;;
     *)
           # unknown option
     ;;
 esac
 done
 
+# Fall back to host architecture if no explicit runtime is given.
+if test -z "$RUNTIME"; then
+    HOST_ARCH="`dpkg-architecture -q DEB_HOST_ARCH`"
+
+    case $HOST_ARCH in
+        amd64)
+            RUNTIME="linux-x64"
+            ;;
+        arm64)
+            RUNTIME="linux-arm64"
+            ;;
+        *)
+            die "Could not determine host architecture!"
+            ;;
+    esac
+fi
+
 # Directories
 THISDIR="$( cd "$(dirname "$0")" ; pwd -P )"
 ROOT="$( cd "$THISDIR"/../../.. ; pwd -P )"
@@ -48,19 +69,26 @@ PROJ_OUT="$OUT/linux/Packaging.Linux"
 
 # Build parameters
 FRAMEWORK=netcoreapp3.1
-RUNTIME=linux-x64
+case $RUNTIME in
+    linux-x64)
+        ARCH="amd64"
+        ;;
+    linux-arm64)
+        ARCH="arm64"
+        ;;
+    *)
+        die "Incompatible runtime architecture given for build.sh"
+		;;
+esac
+
+echo "Building for runtime ${RUNTIME} and arch ${ARCH}"
 
 # Perform pre-execution checks
 CONFIGURATION="${CONFIGURATION:=Debug}"
 if [ -z "$VERSION" ]; then
     die "--version was not set"
 fi
 
-ARCH="`dpkg-architecture -q DEB_HOST_ARCH`"
-if test -z "$ARCH"; then
-  die "Could not determine host architecture!"
-fi
-
 # Outputs
 PAYLOAD="$PROJ_OUT/payload/$CONFIGURATION"
 SYMBOLOUT="$PROJ_OUT/payload.sym/$CONFIGURATION"

src/shared/Git-Credential-Manager/Git-Credential-Manager.csproj

@@ -4,7 +4,7 @@
     <OutputType>Exe</OutputType>
     <TargetFrameworks>netcoreapp3.1</TargetFrameworks>
     <TargetFrameworks Condition="'$(OSPlatform)'=='windows'">net461;netcoreapp3.1</TargetFrameworks>
-    <RuntimeIdentifiers>win-x86;osx-x64;linux-x64</RuntimeIdentifiers>
+    <RuntimeIdentifiers>win-x86;osx-x64;linux-x64;linux-arm64</RuntimeIdentifiers>
     <PlatformTarget Condition="'$(OSPlatform)'=='windows'">x86</PlatformTarget>
     <AssemblyName>git-credential-manager-core</AssemblyName>
     <RootNamespace>Microsoft.Git.CredentialManager</RootNamespace>