Factor PlatformIO buildgen out of writer.py (#9378)

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>

esphome/writer.py

@@ -7,7 +7,6 @@ import re
 from esphome import loader
 from esphome.config import iter_component_configs, iter_components
 from esphome.const import (
-    ENV_NOGITIGNORE,
     HEADER_FILE_EXTENSIONS,
     PLATFORM_ESP32,
     SOURCE_FILE_EXTENSIONS,
@@ -16,8 +15,6 @@ from esphome.const import (
 from esphome.core import CORE, EsphomeError
 from esphome.helpers import (
     copy_file_if_changed,
-    get_bool_env,
-    mkdir_p,
     read_file,
     walk_files,
     write_file_if_changed,
@@ -30,8 +27,6 @@ CPP_AUTO_GENERATE_BEGIN = "// ========== AUTO GENERATED CODE BEGIN ==========="
 CPP_AUTO_GENERATE_END = "// =========== AUTO GENERATED CODE END ============"
 CPP_INCLUDE_BEGIN = "// ========== AUTO GENERATED INCLUDE BLOCK BEGIN ==========="
 CPP_INCLUDE_END = "// ========== AUTO GENERATED INCLUDE BLOCK END ==========="
-INI_AUTO_GENERATE_BEGIN = "; ========== AUTO GENERATED CODE BEGIN ==========="
-INI_AUTO_GENERATE_END = "; =========== AUTO GENERATED CODE END ============"
 
 CPP_BASE_FORMAT = (
     """// Auto generated code by esphome
@@ -50,20 +45,6 @@ void loop() {
 """,
 )
 
-INI_BASE_FORMAT = (
-    """; Auto generated code by esphome
-
-[common]
-lib_deps =
-build_flags =
-upload_flags =
-
-""",
-    """
-
-""",
-)
-
 UPLOAD_SPEED_OVERRIDE = {
     "esp210": 57600,
 }
@@ -140,40 +121,6 @@ def update_storage_json():
     new.save(path)
 
 
-def format_ini(data: dict[str, str | list[str]]) -> str:
-    content = ""
-    for key, value in sorted(data.items()):
-        if isinstance(value, list):
-            content += f"{key} =\n"
-            for x in value:
-                content += f"    {x}\n"
-        else:
-            content += f"{key} = {value}\n"
-    return content
-
-
-def get_ini_content():
-    CORE.add_platformio_option(
-        "lib_deps", [x.as_lib_dep for x in CORE.libraries] + ["${common.lib_deps}"]
-    )
-    # Sort to avoid changing build flags order
-    CORE.add_platformio_option("build_flags", sorted(CORE.build_flags))
-
-    # Sort to avoid changing build unflags order
-    CORE.add_platformio_option("build_unflags", sorted(CORE.build_unflags))
-
-    # Add extra script for C++ flags
-    CORE.add_platformio_option("extra_scripts", [f"pre:{CXX_FLAGS_FILE_NAME}"])
-
-    content = "[platformio]\n"
-    content += f"description = ESPHome {__version__}\n"
-
-    content += f"[env:{CORE.name}]\n"
-    content += format_ini(CORE.platformio_options)
-
-    return content
-
-
 def find_begin_end(text, begin_s, end_s):
     begin_index = text.find(begin_s)
     if begin_index == -1:
@@ -201,34 +148,6 @@ def find_begin_end(text, begin_s, end_s):
     return text[:begin_index], text[(end_index + len(end_s)) :]
 
 
-def write_platformio_ini(content):
-    update_storage_json()
-    path = CORE.relative_build_path("platformio.ini")
-
-    if os.path.isfile(path):
-        text = read_file(path)
-        content_format = find_begin_end(
-            text, INI_AUTO_GENERATE_BEGIN, INI_AUTO_GENERATE_END
-        )
-    else:
-        content_format = INI_BASE_FORMAT
-    full_file = f"{content_format[0] + INI_AUTO_GENERATE_BEGIN}\n{content}"
-    full_file += INI_AUTO_GENERATE_END + content_format[1]
-    write_file_if_changed(path, full_file)
-
-
-def write_platformio_project():
-    mkdir_p(CORE.build_path)
-
-    content = get_ini_content()
-    if not get_bool_env(ENV_NOGITIGNORE):
-        write_gitignore()
-    write_platformio_ini(content)
-
-    # Write extra script for C++ specific flags
-    write_cxx_flags_script()
-
-
 DEFINES_H_FORMAT = ESPHOME_H_FORMAT = """\
 #pragma once
 #include "esphome/core/macros.h"
@@ -400,20 +319,3 @@ def write_gitignore():
     if not os.path.isfile(path):
         with open(file=path, mode="w", encoding="utf-8") as f:
             f.write(GITIGNORE_CONTENT)
-
-
-CXX_FLAGS_FILE_NAME = "cxx_flags.py"
-CXX_FLAGS_FILE_CONTENTS = """# Auto-generated ESPHome script for C++ specific compiler flags
-Import("env")
-
-# Add C++ specific flags
-"""
-
-
-def write_cxx_flags_script() -> None:
-    path = CORE.relative_build_path(CXX_FLAGS_FILE_NAME)
-    contents = CXX_FLAGS_FILE_CONTENTS
-    if not CORE.is_host:
-        contents += 'env.Append(CXXFLAGS=["-Wno-volatile"])'
-        contents += "\n"
-    write_file_if_changed(path, contents)