Add a Wasm build for .NET 7

Part of dotnet/efcore#28999

.github/workflows/build.yml

@@ -33,11 +33,6 @@ jobs:
       uses: nttld/setup-ndk@v1
       with:
         ndk-version: r21e
-    - name: Setup Emscripten
-      if: startsWith(matrix.os, 'ubuntu')
-      uses: mymindstorm/setup-emsdk@v11
-      with:
-        version: 2.0.23 # NB: Matches .NET 6
     - name: Setup .NET
       uses: actions/setup-dotnet@v1
       with:
@@ -83,15 +78,6 @@ jobs:
         mkdir -p ../bin/e_sqlcipher/android
         cp -r libs/* ../bin/e_sqlcipher/android
       working-directory: cb/bld
-    - name: Build (Wasm)
-      if: startsWith(matrix.os, 'ubuntu')
-      run: |
-        #!/bin/bash
-        set -e
-        for f in wasm_*.sh; do
-          bash "$f"
-        done
-      working-directory: cb/bld
     - name: Build (macOS, iOS, tvOS)
       if: startsWith(matrix.os, 'macos')
       run: |
@@ -113,8 +99,55 @@ jobs:
         name: bin-${{ matrix.os }}
         path: cb/bld/bin
 
+  build-wasm:
+    strategy:
+      matrix:
+        config:
+          # Don't forget to add a download-artifact steps in test and publish
+        - '{ "tfm": "net6.0", "emsdk": "2.0.23" }' # eol: 2024-11-12
+        - '{ "tfm": "net7.0", "emsdk": "3.1.12" }' # eol: 2023-05-08
+    runs-on: ubuntu-18.04
+    steps:
+    - uses: actions/checkout@v2
+      with:
+        path: "cb"
+    - uses: actions/checkout@v2
+      with:
+        repository: libtom/libtomcrypt
+        path: "libtomcrypt"
+        ref: "v1.18.2"
+    - name: Setup Emscripten
+      uses: mymindstorm/setup-emsdk@v11
+      with:
+        version: ${{ fromJSON(matrix.config).emsdk }}
+    - name: Setup .NET
+      uses: actions/setup-dotnet@v1
+      with:
+        dotnet-version: 3.1.x
+    - name: Generate script
+      run: dotnet run
+      working-directory: cb/bld
+    - name: Update permissions
+      run: chmod +x *.sh
+      working-directory: cb/bld
+    - name: Clean output directory
+      run: rm -fr bin
+      working-directory: cb/bld
+    - name: Build (Wasm)
+      run: |
+        #!/bin/bash
+        set -e
+        for f in wasm_*.sh; do
+          bash "$f" ${{ fromJSON(matrix.config).tfm }}
+        done
+      working-directory: cb/bld
+    - uses: actions/upload-artifact@v2
+      with:
+        name: bin-wasm-${{ fromJSON(matrix.config).tfm }}
+        path: cb/bld/bin
+
   test:
-    needs: build
+    needs: [ build, build-wasm]
     if: ${{ github.event_name == 'pull_request' }}
     strategy:
       matrix:
@@ -150,6 +183,14 @@ jobs:
       with:
         name: bin-windows-2019
         path: cb/bld/bin
+    - uses: actions/download-artifact@v2
+      with:
+        name: bin-wasm-net6.0
+        path: cb/bld/bin
+    - uses: actions/download-artifact@v2
+      with:
+        name: bin-wasm-net7.0
+        path: cb/bld/bin
     # note that the following is mostly a copy of the build script from the SQLitePCL.raw repo
     - name: "Set up Java: 11"
       uses: actions/setup-java@v1
@@ -181,7 +222,7 @@ jobs:
         dotnet run
 
   publish:
-    needs: build
+    needs: [ build, build-wasm ]
     if: ${{ github.event_name == 'push' }}
     runs-on: ubuntu-18.04
     steps:
@@ -205,6 +246,14 @@ jobs:
       with:
         name: bin-windows-2019
         path: bld/bin
+    - uses: actions/download-artifact@v2
+      with:
+        name: bin-wasm-net6.0
+        path: cb/bld/bin
+    - uses: actions/download-artifact@v2
+      with:
+        name: bin-wasm-net7.0
+        path: cb/bld/bin
     - name: Fix permissions
       run: |
         find ./bld/bin/e_sqlite3 -name *.so | xargs chmod 0775

bld/cb.cs

@@ -411,8 +411,8 @@ static void write_wasm(
                 tw.Write(" -o ./obj/{0}/{1}.o", subdir, b);
                 tw.Write(" {0}\n", s);
             }
-            tw.Write("mkdir -p \"./bin/{0}\"\n", subdir);
-            tw.Write("emar rcs ./bin/{0}/wasm/{0}.a @wasm_{0}.libtoolfiles\n", libname);
+            tw.Write("mkdir -p \"./bin/{0}/$1\"\n", subdir);
+            tw.Write("emar rcs ./bin/{0}/$1/{1}.a @wasm_{1}.libtoolfiles\n", subdir, libname);
         }
     }