esphome/esphomeyaml/writer.py

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from __future__ import print_function
import codecs
import errno
import os
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from esphomeyaml import core
from esphomeyaml.config import iter_components
from esphomeyaml.const import CONF_BOARD, CONF_ESPHOMEYAML, CONF_LIBRARY_URI, CONF_NAME, \
CONF_PLATFORM, CONF_USE_BUILD_FLAGS, ESP_PLATFORM_ESP32, ESP_PLATFORM_ESP8266
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from esphomeyaml.core import ESPHomeYAMLError
CPP_AUTO_GENERATE_BEGIN = u'// ========== AUTO GENERATED CODE BEGIN ==========='
CPP_AUTO_GENERATE_END = u'// =========== AUTO GENERATED CODE END ============'
INI_AUTO_GENERATE_BEGIN = u'; ========== AUTO GENERATED CODE BEGIN ==========='
INI_AUTO_GENERATE_END = u'; =========== AUTO GENERATED CODE END ============'
CPP_BASE_FORMAT = (u"""// Auto generated code by esphomeyaml
#include "esphomelib/application.h"
using namespace esphomelib;
void setup() {
// ===== DO NOT EDIT ANYTHING BELOW THIS LINE =====
""", u"""
// ========= YOU CAN EDIT AFTER THIS LINE =========
App.setup();
}
void loop() {
App.loop();
delay(1);
}
""")
INI_BASE_FORMAT = (u"""; Auto generated code by esphomeyaml
[common]
lib_deps =
build_flags =
upload_flags =
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; ===== DO NOT EDIT ANYTHING BELOW THIS LINE =====
""", u"""
; ========= YOU CAN EDIT AFTER THIS LINE =========
""")
INI_CONTENT_FORMAT = u"""[env:{env}]
platform = {platform}
board = {board}
framework = arduino
lib_deps =
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{lib_deps}
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${{common.lib_deps}}
build_flags =
{build_flags}
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${{common.build_flags}}
"""
PLATFORM_TO_PLATFORMIO = {
ESP_PLATFORM_ESP32: 'espressif32',
ESP_PLATFORM_ESP8266: 'espressif8266'
}
def get_build_flags(config, key):
build_flags = set()
for _, component, conf in iter_components(config):
if not hasattr(component, key):
continue
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flags = getattr(component, key)
if callable(flags):
flags = flags(conf)
if flags is None:
continue
if isinstance(flags, (str, unicode)):
flags = [flags]
build_flags |= set(flags)
return build_flags
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def get_ini_content(config):
platform = config[CONF_ESPHOMEYAML][CONF_PLATFORM]
if platform in PLATFORM_TO_PLATFORMIO:
platform = PLATFORM_TO_PLATFORMIO[platform]
options = {
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u'env': config[CONF_ESPHOMEYAML][CONF_NAME],
u'platform': platform,
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u'board': config[CONF_ESPHOMEYAML][CONF_BOARD],
u'build_flags': u'',
}
build_flags = set()
if config[CONF_ESPHOMEYAML][CONF_USE_BUILD_FLAGS]:
build_flags |= get_build_flags(config, 'build_flags')
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build_flags |= get_build_flags(config, 'BUILD_FLAGS')
build_flags.add(u"-DESPHOMEYAML_USE")
build_flags |= get_build_flags(config, 'required_build_flags')
# avoid changing build flags order
build_flags = sorted(list(build_flags))
if build_flags:
options[u'build_flags'] = u'\n '.join(build_flags)
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lib_deps = set()
lib_deps.add(config[CONF_ESPHOMEYAML][CONF_LIBRARY_URI])
if core.ESP_PLATFORM == ESP_PLATFORM_ESP32:
lib_deps |= {
'ArduinoOTA',
'Update',
'ESPmDNS',
'Wire',
'FS',
'Preferences',
}
elif core.ESP_PLATFORM == ESP_PLATFORM_ESP8266:
lib_deps |= {
'ESP8266WiFi',
'Wire',
'Hash',
'ESP8266mDNS',
'ArduinoOTA',
}
else:
raise ESPHomeYAMLError("Unsupported platform {}".format(core.ESP_PLATFORM))
options[u'lib_deps'] = u'\n '.join(sorted(list(lib_deps)))
return INI_CONTENT_FORMAT.format(**options)
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def mkdir_p(path):
try:
os.makedirs(path)
except OSError as exc: # Python >2.5
if exc.errno == errno.EEXIST and os.path.isdir(path):
pass
else:
raise
def find_begin_end(text, begin_s, end_s):
begin_index = text.find(begin_s)
if begin_index == -1:
raise ESPHomeYAMLError(u"Could not find auto generated code begin in file, either"
u"delete the main sketch file or insert the comment again.")
if text.find(begin_s, begin_index + 1) != -1:
raise ESPHomeYAMLError(u"Found multiple auto generate code begins, don't know"
u"which to chose, please remove one of them.")
end_index = text.find(end_s)
if end_index == -1:
raise ESPHomeYAMLError(u"Could not find auto generated code end in file, either"
u"delete the main sketch file or insert the comment again.")
if text.find(end_s, end_index + 1) != -1:
raise ESPHomeYAMLError(u"Found multiple auto generate code endings, don't know"
u"which to chose, please remove one of them.")
return text[:begin_index], text[(end_index + len(end_s)):]
def write_platformio_ini(content, path):
if os.path.isfile(path):
try:
with codecs.open(path, 'r', encoding='utf-8') as f_handle:
text = f_handle.read()
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except OSError:
raise ESPHomeYAMLError(u"Could not read ini file at {}".format(path))
prev_file = text
content_format = find_begin_end(text, INI_AUTO_GENERATE_BEGIN, INI_AUTO_GENERATE_END)
else:
prev_file = None
mkdir_p(os.path.dirname(path))
content_format = INI_BASE_FORMAT
full_file = content_format[0] + INI_AUTO_GENERATE_BEGIN + '\n' + \
content + INI_AUTO_GENERATE_END + content_format[1]
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if prev_file == full_file:
return
with codecs.open(path, mode='w+', encoding='utf-8') as f_handle:
f_handle.write(full_file)
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def write_cpp(code_s, path):
if os.path.isfile(path):
try:
with codecs.open(path, 'r', encoding='utf-8') as f_handle:
text = f_handle.read()
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except OSError:
raise ESPHomeYAMLError(u"Could not read C++ file at {}".format(path))
prev_file = text
code_format = find_begin_end(text, CPP_AUTO_GENERATE_BEGIN, CPP_AUTO_GENERATE_END)
else:
prev_file = None
mkdir_p(os.path.dirname(path))
code_format = CPP_BASE_FORMAT
full_file = code_format[0] + CPP_AUTO_GENERATE_BEGIN + '\n' + \
code_s + CPP_AUTO_GENERATE_END + code_format[1]
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if prev_file == full_file:
return
with codecs.open(path, 'w+', encoding='utf-8') as f_handle:
f_handle.write(full_file)