Added a new build variable (COMPILATIONDB_INCLUDE_TOOLCHAIN) to include toolchain paths in the compilation database // Resolve #3735

HISTORY.rst

@@ -48,6 +48,11 @@ PlatformIO Core 5
   - Show project dependency licenses when building in the verbose mode
   - Fixed an issue when `LDF <https://docs.platformio.org/en/latest/librarymanager/ldf.html>`__ ignores the project `lib_deps <https://docs.platformio.org/en/latest/projectconf/section_env_library.html#lib-deps>`__ while resolving library dependencies (`issue #3598 <https://github.com/platformio/platformio-core/issues/3598>`_)
 
+* **Integration**
+
+  - Added a new build variable (``COMPILATIONDB_INCLUDE_TOOLCHAIN``) to include toolchain paths in the compilation database (`issue #3735 <https://github.com/platformio/platformio-core/issues/3735>`_)
+  - Changed default path for compilation database `compile_commands.json <https://docs.platformio.org/en/latest/integration/compile_commands.html>`__ to the root of the project
+
 * **Miscellaneous**
 
   - Improved PIO Remote setup on credit-card sized computers (Raspberry Pi, BeagleBon, etc) (`issue #3865 <https://github.com/platformio/platformio-core/issues/3865>`_)

platformio/builder/main.py

@@ -61,7 +61,7 @@ DEFAULT_ENV_OPTIONS = dict(
         "piolib",
         "pioupload",
         "piomisc",
-        "pioide",
+        "piointegration",
         "piosize",
     ],
     toolpath=[os.path.join(fs.get_source_dir(), "builder", "tools")],
@@ -72,7 +72,7 @@ DEFAULT_ENV_OPTIONS = dict(
     BUILD_DIR=os.path.join("$PROJECT_BUILD_DIR", "$PIOENV"),
     BUILD_SRC_DIR=os.path.join("$BUILD_DIR", "src"),
     BUILD_TEST_DIR=os.path.join("$BUILD_DIR", "test"),
-    COMPILATIONDB_PATH=os.path.join("$BUILD_DIR", "compile_commands.json"),
+    COMPILATIONDB_PATH=os.path.join("$PROJECT_DIR", "compile_commands.json"),
     LIBPATH=["$BUILD_DIR"],
     PROGNAME="program",
     PROG_PATH=os.path.join("$BUILD_DIR", "$PROGNAME$PROGSUFFIX"),
@@ -228,7 +228,7 @@ if set(["_idedata", "idedata"]) & set(COMMAND_LINE_TARGETS):
         Import("projenv")
     except:  # pylint: disable=bare-except
         projenv = env
-    data = projenv.DumpIDEData(env)
+    data = projenv.DumpIntegrationData(env)
     # dump to file for the further reading by project.helpers.load_project_ide_data
     with open(
         projenv.subst(os.path.join("$BUILD_DIR", "idedata.json")),

platformio/builder/tools/piointegration.py

@@ -24,27 +24,27 @@ from platformio.package.manager.core import get_core_package_dir
 from platformio.proc import exec_command, where_is_program
 
 
-def _dump_includes(env):
+def DumpIntegrationIncludes(env):
-    includes = {}
+    result = dict(build=[], compatlib=[], toolchain=[], unity=[])
 
-    includes["build"] = [
+    result["build"].extend(
+        [
             env.subst("$PROJECT_INCLUDE_DIR"),
             env.subst("$PROJECT_SRC_DIR"),
         ]
-    includes["build"].extend(
+    )
+    result["build"].extend(
         [os.path.abspath(env.subst(item)) for item in env.get("CPPPATH", [])]
     )
 
     # installed libs
-    includes["compatlib"] = []
     for lb in env.GetLibBuilders():
-        includes["compatlib"].extend(
+        result["compatlib"].extend(
             [os.path.abspath(inc) for inc in lb.get_include_dirs()]
         )
 
     # includes from toolchains
     p = env.PioPlatform()
-    includes["toolchain"] = []
     for pkg in p.get_installed_packages(with_optional=False):
         if p.get_package_type(pkg.metadata.name) != "toolchain":
             continue
@@ -56,10 +56,9 @@ def _dump_includes(env):
             os.path.join(toolchain_dir, "*", "include*"),
         ]
         for g in toolchain_incglobs:
-            includes["toolchain"].extend([os.path.abspath(inc) for inc in glob.glob(g)])
+            result["toolchain"].extend([os.path.abspath(inc) for inc in glob.glob(g)])
 
     # include Unity framework if there are tests in project
-    includes["unity"] = []
     auto_install_unity = False
     test_dir = env.GetProjectConfig().get("platformio", "test_dir")
     if os.path.isdir(test_dir) and os.listdir(test_dir) != ["README"]:
@@ -69,9 +68,9 @@ def _dump_includes(env):
         auto_install=auto_install_unity,
     )
     if unity_dir:
-        includes["unity"].append(unity_dir)
+        result["unity"].append(unity_dir)
 
-    return includes
+    return result
 
 
 def _get_gcc_defines(env):
@@ -154,14 +153,14 @@ def _subst_cmd(env, cmd):
     return " ".join([SCons.Subst.quote_spaces(arg) for arg in args])
 
 
-def DumpIDEData(env, globalenv):
+def DumpIntegrationData(env, globalenv):
     """env here is `projenv`"""
 
     data = {
         "env_name": env["PIOENV"],
         "libsource_dirs": [env.subst(item) for item in env.GetLibSourceDirs()],
         "defines": _dump_defines(env),
-        "includes": _dump_includes(env),
+        "includes": env.DumpIntegrationIncludes(),
         "cc_path": where_is_program(env.subst("$CC"), env.subst("${ENV['PATH']}")),
         "cxx_path": where_is_program(env.subst("$CXX"), env.subst("${ENV['PATH']}")),
         "gdb_path": where_is_program(env.subst("$GDB"), env.subst("${ENV['PATH']}")),
@@ -205,5 +204,6 @@ def exists(_):
 
 
 def generate(env):
-    env.AddMethod(DumpIDEData)
+    env.AddMethod(DumpIntegrationIncludes)
+    env.AddMethod(DumpIntegrationData)
     return env

platformio/builder/tools/platformio.py

@@ -136,6 +136,13 @@ def ProcessProgramDeps(env):
     if "__test" in COMMAND_LINE_TARGETS:
         env.ConfigureTestTarget()
 
+    if "compiledb" in COMMAND_LINE_TARGETS and env.get(
+        "COMPILATIONDB_INCLUDE_TOOLCHAIN"
+    ):
+        for scope, includes in env.DumpIntegrationIncludes().items():
+            if scope in ("toolchain", "unity"):
+                env.Append(CPPPATH=includes)
+
 
 def ProcessProjectDeps(env):
     project_lib_builder = env.ConfigureProjectLibBuilder()