install conan before pipeline

.github/workflows/main.yml

@@ -17,30 +17,27 @@ jobs:
     steps:
     - uses: actions/checkout@v1
 
+    - name: install install
+      run: pip install conan
+
     - name: Create Build Environment
-      # Some projects don't allow in-source building, so create a separate build directory
-      # We'll use this as our working directory for all subsequent commands
       run: cmake -E make_directory ${{runner.workspace}}/build
 
+    - name: Install conan dependencies
+      working-directory: ${{runner.workspace}}/build
+      run: conan install .. --build missing
+
     - name: Configure CMake
-      # Use a bash shell so we can use the same syntax for environment variable
-      # access regardless of the host operating system
       shell: bash
       working-directory: ${{runner.workspace}}/build
-      # Note the current convention is to use the -S and -B options here to specify source 
-      # and build directories, but this is only available with CMake 3.13 and higher.  
-      # The CMake binaries on the Github Actions machines are (as of this writing) 3.12
       run: cmake $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=$BUILD_TYPE
 
     - name: Build
       working-directory: ${{runner.workspace}}/build
       shell: bash
-      # Execute the build.  You can specify a specific target with "--target <NAME>"
       run: cmake --build . --config $BUILD_TYPE
 
     - name: Test
       working-directory: ${{runner.workspace}}/build
       shell: bash
-      # Execute tests defined by the CMake configuration.  
-      # See https://cmake.org/cmake/help/latest/manual/ctest.1.html for more detail
       run: make tests && ./tests