Emscripten build examples (#7787)

Author: ofTheo

.github/workflows/manual-web-examples.yml

@@ -0,0 +1,48 @@
+name: build-web-examples
+
+
+# make the action not run on the local repo if the branch is also in a pull request to OF/OF
+#on: 
+#  workflow_dispatch:
+#    inputs:
+#          release:
+#            description: 'release'     
+#            required: true
+#            default: 'nightly'
+on:
+  push:
+    if: github.event_name == 'push' && github.event.pull_request == null
+    paths-ignore:
+    - '**/*.md'
+    - 'examples/**'
+  pull_request:
+    if: github.event_name == 'pull_request' && github.repository == 'openframeworks/openFrameworks'
+    paths-ignore:
+      - '**/*.md'
+      - 'examples/**'
+jobs:
+  build-web-examples:
+    runs-on: ubuntu-20.04
+    strategy:
+      matrix:
+        cfg:
+          - target: emscripten
+    env:
+      TARGET: ${{matrix.cfg.target}}
+    steps:
+      - uses: actions/checkout@v4
+      - name: Docker Step
+        run:  docker run -di --name emscripten -v $PWD:/src emscripten/emsdk:3.1.21 bash
+      - name: Download libs
+        run: ./scripts/$TARGET/download_libs.sh
+      - name: Install dependencies
+        run: ./scripts/ci/$TARGET/install_web_examples.sh
+      - name: Build
+        run: docker exec -e GA_EXAMPLES_USER=${{ secrets.SSH_USER }} -e GA_EXAMPLES_SERVER=${{ secrets.SSH_SERVER }} -e GA_EXAMPLES_KEY=${{ secrets.SSH_KEY }} -e GH_HEAD_REF=${{ github.head_ref }} -e GH_BRANCH=${{ github.ref_name }} -e GH_ACTIONS=true -i emscripten sh -c "scripts/ci/$TARGET/examples_to_build.sh"
+        env:
+          GA_EXAMPLES_USER: ${{ secrets.SSH_USER }}
+          GA_EXAMPLES_SERVER: ${{ secrets.SSH_SERVER }}
+          GA_EXAMPLES_KEY: ${{ secrets.SSH_KEY }}
+          GH_HEAD_REF: ${{ github.head_ref }}
+          GH_BRANCH: ${{ github.ref_name }}
+          GH_ACTIONS: "true"

scripts/ci/emscripten/examples_to_build.sh

@@ -0,0 +1,64 @@
+#!/bin/bash
+
+# List of folder paths to iterate through make sure there is no trailing slash
+folders=(
+    "examples/3d/pointCloudExample"
+#    "examples/3d/3DPrimitivesExample"
+#    "examples/3d/ofxAssimpBoneControlExample"
+#    "examples/3d/ofxAssimpAdvancedExample"
+    # "examples/3d/ofxAssimpAdvancedExample"
+    # Add more paths as needed
+)
+
+echo "RUNNING IN CI ${GH_BRANCH} ${GH_ACTIONS}"
+echo "TRYING USER/SERVER ${GA_EXAMPLES_USER}@${GA_EXAMPLES_SERVER}" 
+
+cur_root=$(pwd);
+cd $cur_root;
+mkdir -p out
+out_folder="$cur_root/out"
+
+# Iterate through the folder paths
+for folder in "${folders[@]}"; do
+    # Check if the folder exists
+    if [ -d "$folder" ]; then
+
+        # Change to the directory
+        cd $folder
+        cp ../../../scripts/templates/emscripten/Makefile .
+		cp ../../../scripts/templates/emscripten/config.make .
+        emmake make -j2 Release
+        
+        errorcode=$?
+		if [[ $errorcode -ne 0 ]]; then
+			echo "Couldn't build emscripten example: $folder"
+		else
+			folder_name=$(basename "$folder")
+			cp -r "bin/em/$folder_name" "$out_folder/"
+		fi
+		
+		cd $cur_root
+    else
+        echo "Folder does not exist: $folder"
+    fi
+done
+
+cd $cur_root;
+DO_UPLOAD="false"
+
+#if [[ "$GH_ACTIONS" = true && "${GH_BRANCH}" == "master" && -z "${GH_HEAD_REF}" ]]; then
+if [[ "$GH_ACTIONS" = "true" ]]; then
+	echo "upload 1/2 - make key file"
+    # Temporary file to store the private key
+	key_file=$(mktemp)
+	echo -e "$GA_EXAMPLES_KEY" > "$key_file"
+	chmod 600 "$key_file"
+    DO_UPLOAD="true";
+fi
+
+if [ "$DO_UPLOAD" = "true" ]; then
+	echo "upload 2/2 - time for rsync"
+	remote_path="/home/ofadmin/openFrameworks.cc/examples/"
+	rsync -avz -e "ssh -i $key_file" "$out_folder/" "$GA_EXAMPLES_USER@$GA_EXAMPLES_SERVER:$remote_path"
+    rm -f "$key_file"
+fi

scripts/ci/emscripten/install_web_examples.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+
+docker exec -i emscripten apt update
+docker exec -i emscripten apt install -y rsync
+docker exec -i emscripten sh -c "echo \$PATH"
+