start work on ci support

.github/workflows/ci.yml

@@ -0,0 +1,154 @@
+name: CI
+on:
+  push:
+    branches:
+      - master
+    tags:
+      - '*'
+  pull_request:
+    branches:
+      - master
+jobs:
+  build-mex:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-20.04,windows-2019,macos-12,macos-14]
+    steps:
+    - name: Retrieve the source code
+      uses: actions/checkout@v4
+      with:
+        fetch-depth: 0
+    - name: Install MATLAB
+      uses: matlab-actions/setup-matlab@v2
+      with:
+        release: ${{ matrix.os == 'macos-14' && 'R2023b' || ( matrix.os == 'windows-2019' && 'R2021b' || 'R2021a' ) }}
+    - name: Build MEX files
+      uses: matlab-actions/run-command@v2
+      with:
+        command: "cd lib; mex cvx_eliminate_mex.c; mex cvx_bcompress_mex.c"
+    - name: Upload MATLAB MEX files
+      uses: actions/upload-artifact@v4
+      with:
+        name: mex-${{ matrix.os }}
+        path: "lib/*.mex*"
+  build-oct:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-20.04,windows-2019,macos-12,macos-14]
+    steps:
+    - name: Retrieve the source code
+      uses: actions/checkout@v4
+      with:
+        fetch-depth: 0
+    - name: Install Octave
+      shell: bash
+      run: |
+        if [ "${{ matrix.os }}" = ubuntu-20.04 ]; then
+          sudo apt update
+          sudo snap install octave
+          sudo apt install --no-install-recommends libopenblas-dev
+          echo "OCTAVE=snap run octave" >>$GITHUB_ENV
+        elif [ "${{ matrix.os }}" = windows-2019 ]; then
+          choco install octave.portable
+        else
+          brew install octave
+          echo "OCTAVE=octave" >>$GITHUB_ENV
+        fi
+    - name: Build MEX files (Unix)
+      if: matrix.os != 'windows-2019'
+      run: $OCTAVE --eval "cd lib; mex cvx_eliminate_mex.c; mex cvx_bcompress_mex.c"
+    - name: Build Mex files (Windows)
+      if: matrix.os == 'windows-2019'
+      shell: cmd
+      run: |
+        set PATH=C:\ProgramData\chocolatey\bin;%PATH%
+        octave-cli.exe --no-gui --eval "cd lib; mex cvx_eliminate_mex.c; mex cvx_bcompress_mex.c"
+        if %errorlevel% neq 0 exit /b %errorlevel%
+    - name: Upload Octave MEX files
+      uses: actions/upload-artifact@v4
+      with:
+        name: oct-${{ matrix.os }}
+        path: "*.mex"
+  package:
+    needs: [build-mex,build-oct]
+    runs-on: ubuntu-latest
+    steps:
+    - name: Retrieve the source code
+      uses: actions/checkout@v4
+      with:
+        fetch-depth: 0
+    - name: Retrieve artifacts
+      uses: actions/download-artifact@v4
+    - name: Move artifacts into place
+      run: |
+        mkdir -p lib/o_lin  && mv oct-ubuntu-*/* lib/o_lin/
+        mkdir -p lib/o_win  && mv oct-windows-*/* lib/o_win/
+        mkdir -p lib/o_maci && mv oct-macos-12/* lib/o_maci/
+        mkdir -p lib/o_maca && mv oct-macos-14/* lib/o_maca/
+        mv mex-*/* .
+        rmdir mex-* oct-*
+    - name: Download solvers
+      run: |
+        rm -rf sdpt3 sedumi || :
+        for url in $(grep -v ^# solvers.txt); do
+          echo "Downloading: $url"
+          curl -OL $url
+          echo "Unpacking: ${url##*/}
+          tar xfz ${url##*/}
+          rm ${url##*/}
+        done
+    - name: Show files, build archives
+      run: |
+        cd ..
+        zip -r cvx.zip cvx -x 'cvx/.git/*' -x 'cvx/.github/*'
+        tar cfz cvx.tgz --exclude "cvx/.git" --exclude "cvx/.github" sedumi
+        echo "--------"
+        tar tfz cvx.tgz
+        echo "--------"
+        zipinfo cvx.zip
+        echo "--------"
+        mv cvx.tgz cvx.zip sedumi
+    - name: Upload bundles
+      uses: actions/upload-artifact@v4
+      with:
+        name: bundles
+        path: |
+          cvx.zip
+          cvx.tgz
+  matlab-tests:
+    needs: package
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest,macos-latest,windows-latest,macos-14]
+    steps:
+    - name: Retrieve artifact
+      uses: actions/download-artifact@v4
+      with:
+        name: bundles
+    - name: Unpack artifact
+      run: tar xfz cvx.tgz --strip-components=1
+    - name: Install latest MATLAB
+      uses: matlab-actions/setup-matlab@v2
+    - name: Run test
+      uses: matlab-actions/run-command@v2
+      with:
+        command: "cvx_setup"
+  publish:
+    needs: [matlab-tests]
+    if: startsWith(github.ref, 'refs/tags/')
+    runs-on: ubuntu-latest
+    steps:
+    - name: Retrieve artifacts
+      uses: actions/download-artifact@v4
+      with:
+        name: bundles
+    - uses: softprops/action-gh-release@v2
+      with:
+        files: |
+          cvx.tgz
+          cvx.zip

.gitmodules

@@ -1,7 +0,0 @@
-[submodule "sedumi"]
-	path = sedumi
-	url = git@github.com:sqlp/sedumi.git
-	branch = pretransfo
-[submodule "sdpt3"]
-	path = sdpt3
-	url = git@github.com:sqlp/sdpt3.git

solvers.txt

@@ -0,0 +1,5 @@
+# These are the URLs of the SDPT3 and SeDuMi bundles to include.
+# We have stopped using submodules because the MEX files are no
+# longer checked into Git; instead, they are built by CI processes
+https://github.com/sqlp/sedumi/releases/download/v1.3.8/sedumi.tgz
+https://github.com/sqlp/sdpt3/releases/download/4.0-20240410/sdpt3.tgz