Update dora new

.github/workflows/ci.yml

@@ -325,6 +325,44 @@ jobs:
           dora stop --name ci-python-test  --grace-duration 5s
           dora destroy
 
+      - name: "Test CLI (C)"
+        timeout-minutes: 30
+        # fail-fast by using bash shell explictly
+        shell: bash
+        if: runner.os == 'Linux'
+        run: |
+          # Test C template Project
+          dora new test_c_project --lang c --internal-create-with-path-dependencies
+          cd test_c_project
+          dora up
+          dora list
+          cmake -B build
+          cmake --build build
+          cmake --install build
+          dora start dataflow.yml --name ci-c-test
+          sleep 10
+          dora stop --name ci-c-test  --grace-duration 5s
+          dora destroy
+
+      - name: "Test CLI (C++)"
+        timeout-minutes: 30
+        # fail-fast by using bash shell explictly
+        shell: bash
+        if: runner.os == 'Linux'
+        run: |
+          # Test C++ template Project
+          dora new test_cxx_project --lang cxx --internal-create-with-path-dependencies
+          cd test_cxx_project
+          dora up
+          dora list
+          cmake -B build
+          cmake --build build
+          cmake --install build
+          dora start dataflow.yml --name ci-cxx-test
+          sleep 10
+          dora stop --name ci-cxx-test  --grace-duration 5s
+          dora destroy
+
   clippy:
     name: "Clippy"
     runs-on: ubuntu-latest

binaries/cli/src/main.rs

@@ -75,7 +75,7 @@ enum Command {
         #[clap(value_name = "PATH", value_hint = clap::ValueHint::FilePath)]
         dataflow: PathBuf,
     },
-    /// Generate a new project, node or operator. Choose the language between Rust, Python, C or C++.
+    /// Generate a new project or node. Choose the language between Rust, Python, C or C++.
     New {
         #[clap(flatten)]
         args: CommandNew,

binaries/cli/src/template/c/cmake-template.txt

@@ -0,0 +1,79 @@
+cmake_minimum_required(VERSION 3.21)
+project(cxx-dataflow LANGUAGES C)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_FLAGS "-fPIC")
+
+set(DORA_ROOT_DIR "__DORA_PATH__" CACHE FILEPATH "Path to the root of dora")
+
+set(dora_c_include_dir "${CMAKE_CURRENT_BINARY_DIR}/include/c")
+if(DORA_ROOT_DIR)
+    include(ExternalProject)
+    ExternalProject_Add(Dora
+        SOURCE_DIR ${DORA_ROOT_DIR}
+        BUILD_IN_SOURCE True
+        CONFIGURE_COMMAND ""
+        BUILD_COMMAND
+            cargo build
+            --package dora-node-api-c
+        INSTALL_COMMAND ""
+    )
+
+    add_custom_command(OUTPUT ${dora_c_include_dir}
+        WORKING_DIRECTORY ${DORA_ROOT_DIR}
+        DEPENDS Dora
+        COMMAND
+            mkdir ${CMAKE_CURRENT_BINARY_DIR}/include/c -p
+            &&
+            cp apis/c/node ${CMAKE_CURRENT_BINARY_DIR}/include/c -r
+    )
+
+    add_custom_target(Dora_c DEPENDS ${dora_c_include_dir})
+    set(dora_link_dirs ${DORA_ROOT_DIR}/target/debug)
+else()
+    include(ExternalProject)
+    ExternalProject_Add(Dora
+        PREFIX ${CMAKE_CURRENT_BINARY_DIR}/dora
+        GIT_REPOSITORY https://github.com/dora-rs/dora.git
+        GIT_TAG main
+        BUILD_IN_SOURCE True
+        CONFIGURE_COMMAND ""
+        BUILD_COMMAND
+            cargo build
+            --package dora-node-api-c
+            --target-dir ${CMAKE_CURRENT_BINARY_DIR}/dora/src/Dora/target
+        INSTALL_COMMAND ""
+    )
+
+    add_custom_command(OUTPUT ${dora_c_include_dir}
+        WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/dora/src/Dora/target
+        DEPENDS Dora
+        COMMAND
+            mkdir ${CMAKE_CURRENT_BINARY_DIR}/include/c -p
+            &&
+            cp ../apis/c/node ${CMAKE_CURRENT_BINARY_DIR}/include/c -r
+    )
+
+    set(dora_link_dirs ${CMAKE_CURRENT_BINARY_DIR}/dora/src/Dora/target/debug)
+
+    add_custom_target(Dora_c DEPENDS ${dora_c_include_dir})
+endif()
+
+link_directories(${dora_link_dirs})
+
+add_executable(talker_1 talker_1/node.c)
+add_dependencies(talker_1 Dora_c)
+target_include_directories(talker_1 PRIVATE ${dora_c_include_dir})
+target_link_libraries(talker_1 dora_node_api_c m)
+
+add_executable(talker_2 talker_2/node.c)
+add_dependencies(talker_2 Dora_c)
+target_include_directories(talker_2 PRIVATE ${dora_c_include_dir})
+target_link_libraries(talker_2 dora_node_api_c m)
+
+add_executable(listener_1 listener_1/node.c)
+add_dependencies(listener_1 Dora_c)
+target_include_directories(listener_1 PRIVATE ${dora_c_include_dir})
+target_link_libraries(listener_1 dora_node_api_c m)
+
+install(TARGETS listener_1 talker_1 talker_2 DESTINATION ${CMAKE_CURRENT_SOURCE_DIR}/bin)

binaries/cli/src/template/c/dataflow-template.yml

@@ -1,24 +1,22 @@
 nodes:
-  - id: op_1
-    operator:
-      shared-library: build/op_1
+  - id: talker_1
+    custom:
+      source: bin/talker_1
       inputs:
-        foo: dora/timer/millis/100
+        tick: dora/timer/millis/100
       outputs:
-        - bar
-  - id: op_2
-    operator:
-      shared-library: build/op_2
+        - speech
+  - id: talker_2
+    custom:
+      source: bin/talker_2
       inputs:
-        foo: dora/timer/secs/2
+        tick: dora/timer/secs/2
       outputs:
-        - bar
+        - speech
 
-  - id: custom-node_1
+  - id: listener_1
     custom:
-      source: build/node_1
+      source: bin/listener_1
       inputs:
-        input-1: op_1/bar
-        input-2: op_2/bar
-      outputs:
-        - foo
+        input-1: talker_1/speech
+        input-2: talker_2/speech

binaries/cli/src/template/c/listener/listener-template.c

@@ -0,0 +1,69 @@
+#include <stdio.h>
+#include <string.h>
+#include <assert.h>
+#include "node_api.h"
+
+// sleep
+#ifdef _WIN32
+#include <Windows.h>
+#else
+#include <unistd.h>
+#endif
+
+int main()
+{
+    void *dora_context = init_dora_context_from_env();
+    if (dora_context == NULL)
+    {
+        fprintf(stderr, "[c node] init dora context failed\n");
+        return -1;
+    }
+
+    printf("[c node] dora context initialized\n");
+
+    for (char i = 0; i < 20; i++)
+    {
+        void *event = dora_next_event(dora_context);
+        if (event == NULL)
+        {
+            printf("[c node] ERROR: unexpected end of event\n");
+            return -1;
+        }
+
+        enum DoraEventType ty = read_dora_event_type(event);
+
+        if (ty == DoraEventType_Input)
+        {
+            char *id_ptr;
+            size_t id_len;
+            read_dora_input_id(event, &id_ptr, &id_len);
+
+            char *data_ptr;
+            size_t data_len;
+            read_dora_input_data(event, &data_ptr, &data_len);
+
+            printf("I heard %s from %s\n", data_ptr, id_ptr);
+        }
+        else if (ty == DoraEventType_Stop)
+        {
+            printf("[c node] received stop event\n");
+            free_dora_event(event);
+            break;
+        }
+        else if (ty == DoraEventType_InputClosed) {
+            printf("[c node] received input closed event\n");
+        }
+        else
+        {
+            printf("[c node] received unexpected event: %d\n", ty);
+            free_dora_event(event);
+            break;
+        }
+
+        free_dora_event(event);
+    }
+
+    free_dora_context(dora_context);
+
+    return 0;
+}

binaries/cli/src/template/c/mod.rs

@@ -6,7 +6,11 @@ use std::{
     path::{Path, PathBuf},
 };
 
-pub fn create(args: crate::CommandNew) -> eyre::Result<()> {
+const NODE: &str = include_str!("node/node-template.c");
+const TALKER: &str = include_str!("talker/talker-template.c");
+const LISTENER: &str = include_str!("listener/listener-template.c");
+
+pub fn create(args: crate::CommandNew, use_path_deps: bool) -> eyre::Result<()> {
     let crate::CommandNew {
         kind,
         lang: _,
@@ -15,13 +19,19 @@ pub fn create(args: crate::CommandNew) -> eyre::Result<()> {
     } = args;
 
     match kind {
-        crate::Kind::Operator => create_operator(name, path),
-        crate::Kind::CustomNode => create_custom_node(name, path),
-        crate::Kind::Dataflow => create_dataflow(name, path),
+        crate::Kind::Operator => {
+            bail!("Operators are going to be depreciated, please don't use it")
+        }
+        crate::Kind::CustomNode => create_custom_node(name, path, NODE),
+        crate::Kind::Dataflow => create_dataflow(name, path, use_path_deps),
     }
 }
 
-fn create_dataflow(name: String, path: Option<PathBuf>) -> Result<(), eyre::ErrReport> {
+fn create_dataflow(
+    name: String,
+    path: Option<PathBuf>,
+    use_path_deps: bool,
+) -> Result<(), eyre::ErrReport> {
     const DATAFLOW_YML: &str = include_str!("dataflow-template.yml");
 
     if name.contains('/') {
@@ -41,9 +51,10 @@ fn create_dataflow(name: String, path: Option<PathBuf>) -> Result<(), eyre::ErrR
     fs::write(&dataflow_yml_path, dataflow_yml)
         .with_context(|| format!("failed to write `{}`", dataflow_yml_path.display()))?;
 
-    create_operator("op_1".into(), Some(root.join("op_1")))?;
-    create_operator("op_2".into(), Some(root.join("op_2")))?;
-    create_custom_node("node_1".into(), Some(root.join("node_1")))?;
+    create_custom_node("talker_1".into(), Some(root.join("talker_1")), TALKER)?;
+    create_custom_node("talker_2".into(), Some(root.join("talker_2")), TALKER)?;
+    create_custom_node("listener_1".into(), Some(root.join("listener_1")), LISTENER)?;
+    create_cmakefile(root.to_path_buf(), use_path_deps)?;
 
     println!(
         "Created new C dataflow at `{name}` at {}",
@@ -53,6 +64,8 @@ fn create_dataflow(name: String, path: Option<PathBuf>) -> Result<(), eyre::ErrR
     Ok(())
 }
 
+#[deprecated(since = "0.3.4")]
+#[allow(unused)]
 fn create_operator(name: String, path: Option<PathBuf>) -> Result<(), eyre::ErrReport> {
     const OPERATOR: &str = include_str!("operator/operator-template.c");
 
@@ -91,9 +104,30 @@ fn create_operator(name: String, path: Option<PathBuf>) -> Result<(), eyre::ErrR
     Ok(())
 }
 
-fn create_custom_node(name: String, path: Option<PathBuf>) -> Result<(), eyre::ErrReport> {
-    const NODE: &str = include_str!("node/node-template.c");
+fn create_cmakefile(root: PathBuf, use_path_deps: bool) -> Result<(), eyre::ErrReport> {
+    const CMAKEFILE: &str = include_str!("cmake-template.txt");
+
+    let cmake_file = if use_path_deps {
+        let manifest_dir = Path::new(env!("CARGO_MANIFEST_DIR"));
+        let workspace_dir = manifest_dir.parent().unwrap().parent().unwrap();
+        CMAKEFILE.replace("__DORA_PATH__", workspace_dir.to_str().unwrap())
+    } else {
+        CMAKEFILE.replace("__DORA_PATH__", "")
+    };
+
+    let cmake_path = root.join("CMakeLists.txt");
+    fs::write(&cmake_path, cmake_file)
+        .with_context(|| format!("failed to write `{}`", cmake_path.display()))?;
+
+    println!("Created new CMakeLists.txt at {}", cmake_path.display());
+    Ok(())
+}
 
+fn create_custom_node(
+    name: String,
+    path: Option<PathBuf>,
+    template_scripts: &str,
+) -> Result<(), eyre::ErrReport> {
     if name.contains('/') {
         bail!("node name must not contain `/` separators");
     }
@@ -107,7 +141,7 @@ fn create_custom_node(name: String, path: Option<PathBuf>) -> Result<(), eyre::E
         .with_context(|| format!("failed to create directory `{}`", root.display()))?;
 
     let node_path = root.join("node.c");
-    fs::write(&node_path, NODE)
+    fs::write(&node_path, template_scripts)
         .with_context(|| format!("failed to write `{}`", node_path.display()))?;
     let header_path = root.join("node_api.h");
     fs::write(&header_path, HEADER_NODE_API)