[tools] Update compilation_db for build system changes

tools/build_script_generator/compilation_db/module.lb

@@ -26,8 +26,9 @@ def prepare(module, options):
 def build(env):
     def flag_format(flag):
         subs = {
-            "target_base": "\"${TARGET.base}\"",
-            "linkdir": "\"modm/link\""
+            "target_base": '"${TARGET.base}"',
+            "project_source_dir": 'env["BASEPATH"]',
+            "gccpath": 'env["GCC_PATH"]'
         }
         flag = '"{}"'.format(flag)
         vals = ["{}={}".format(t, r) for t, r in subs.items() if "{{{}}}".format(t) in flag]
@@ -52,7 +53,7 @@ def post_build(env):
         subs["memories"] = []
     # Add SCons specific data
     subs.update({
-        "build_path": env.relative_outpath(env[":build:build.path"]),
+        "build_path": env.relcwdoutpath(env[":build:build.path"]),
         "generated_paths": repositories,
         "common_source_flag_map": common_source_flag_map,
     })

tools/build_script_generator/compilation_db/resources/builder_compilation_db.py.in

@@ -13,7 +13,7 @@ from pathlib import Path
 env = defaultdict(list)
 
 env["CONFIG_PROJECT_NAME"] = "{{ options[":build:project.name"] }}"
-env["CONFIG_BUILD_BASE"] = "{{ build_path }}"
+env["CONFIG_BUILD_BASE"] = os.path.abspath("{{ build_path | modm.windowsify(escape_level=1)}}")
 env["CONFIG_BUILD_PROFILE"] = "debug" if "--debug" in sys.argv else "release"
 
 env["BUILDPATH"] = os.path.join(env["CONFIG_BUILD_BASE"], env["CONFIG_BUILD_PROFILE"])

tools/build_script_generator/compilation_db/resources/compilation_db.py.in

@@ -6,7 +6,7 @@
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
-from os.path import join, abspath
+from os.path import join, abspath, realpath, dirname
 import sys, shutil
 
 profile = env["CONFIG_BUILD_PROFILE"]
@@ -19,7 +19,7 @@ env["COMPILERPREFIX"] = "arm-none-eabi-"
 %% else
 %% if family == "darwin"
 # Using homebrew gcc on macOS instead of clang
-env["COMPILERSUFFIX"] = next(c[3:] for c in ["gcc-9", "gcc-8", "gcc-7"] if shutil.which(c) is not None)
+env["COMPILERSUFFIX"] = next(c[3:] for c in ["gcc-15", "gcc-14"] if shutil.which(c) is not None)
 %% endif
 %% endif
 
@@ -48,6 +48,12 @@ env["SIZE"] = prefix + "size"
 env["STRIP"] = prefix + "strip"
 env["LINK"] = env["CXX"]
 
+c_compiler_name = env["CC"]
+assert (c_compiler_path := shutil.which(c_compiler_name)), \
+        f'Selected compiler "{c_compiler_name}" not found on PATH. ' \
+        "Please add its installation directory to the PATH environment variable."
+env["GCC_PATH"] = dirname(dirname(realpath(c_compiler_path)))
+
 %% endif
 
 %% macro generate_flags_for_profile(name, profile, append=False)

tools/scripts/examples_compile.py

@@ -64,6 +64,8 @@ def build(project):
     commands = []
     if ":build:scons" in project_cfg:
         commands.append( ("scons build --cache-show --random", "SCons") )
+        if ":build:compilation_db" in project_cfg:
+            commands.append( ("scons compilation_db", "CompilationDB (via SCons)") )
     if ":build:make" in project_cfg and not is_running_on_windows:
         commands.append( ("make build", "Make") )
     elif ":build:cmake" in project_cfg and not is_running_on_windows: