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Introduce sonic-py-common package (#5003)
Consolidate common SONiC Python-language functionality into one shared package (sonic-py-common) and eliminate duplicate code. The package currently includes three modules: - daemon_base - device_info - logger
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,12 @@ | ||
| SPATH := $($(SONIC_PY_COMMON_PY2)_SRC_PATH) | ||
| DEP_FILES := $(SONIC_COMMON_FILES_LIST) rules/sonic-py-common.mk rules/sonic-py-common.dep | ||
| DEP_FILES += $(SONIC_COMMON_BASE_FILES_LIST) | ||
| DEP_FILES += $(shell git ls-files $(SPATH)) | ||
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| $(SONIC_PY_COMMON_PY2)_CACHE_MODE := GIT_CONTENT_SHA | ||
| $(SONIC_PY_COMMON_PY2)_DEP_FLAGS := $(SONIC_COMMON_FLAGS_LIST) | ||
| $(SONIC_PY_COMMON_PY2)_DEP_FILES := $(DEP_FILES) | ||
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| $(SONIC_PY_COMMON_PY3)_CACHE_MODE := GIT_CONTENT_SHA | ||
| $(SONIC_PY_COMMON_PY3)_DEP_FLAGS := $(SONIC_COMMON_FLAGS_LIST) | ||
| $(SONIC_PY_COMMON_PY3)_DEP_FILES := $(DEP_FILES) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,15 @@ | ||
| # SONIC_PY_COMMON_PY2 package | ||
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| SONIC_PY_COMMON_PY2 = sonic_py_common-1.0-py2-none-any.whl | ||
| $(SONIC_PY_COMMON_PY2)_SRC_PATH = $(SRC_PATH)/sonic-py-common | ||
| $(SONIC_PY_COMMON_PY2)_DEPENDS += $(SWSSSDK_PY2) | ||
| $(SONIC_PY_COMMON_PY2)_PYTHON_VERSION = 2 | ||
| SONIC_PYTHON_WHEELS += $(SONIC_PY_COMMON_PY2) | ||
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| # SONIC_PY_COMMON_PY3 package | ||
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| SONIC_PY_COMMON_PY3 = sonic_py_common-1.0-py3-none-any.whl | ||
| $(SONIC_PY_COMMON_PY3)_SRC_PATH = $(SRC_PATH)/sonic-py-common | ||
| $(SONIC_PY_COMMON_PY3)_DEPENDS += $(SWSSSDK_PY3) | ||
| $(SONIC_PY_COMMON_PY3)_PYTHON_VERSION = 3 | ||
| SONIC_PYTHON_WHEELS += $(SONIC_PY_COMMON_PY3) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,39 @@ | ||
| from setuptools import setup | ||
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| dependencies = [ | ||
| 'natsort', | ||
| 'pyyaml', | ||
| 'swsssdk>=2.0.1', | ||
| ] | ||
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| high_performance_deps = [ | ||
| 'swsssdk[high_perf]>=2.0.1', | ||
| ] | ||
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| setup( | ||
| name='sonic-py-common', | ||
| version='1.0', | ||
| description='Common Python libraries for SONiC', | ||
| license='Apache 2.0', | ||
| author='SONiC Team', | ||
| author_email='[email protected]', | ||
| url='https://github.com/Azure/SONiC', | ||
| maintainer='Joe LeVeque', | ||
| maintainer_email='[email protected]', | ||
| install_requires=dependencies, | ||
| extras_require={ | ||
| 'high_perf': high_performance_deps, | ||
| }, | ||
| packages=[ | ||
| 'sonic_py_common', | ||
| ], | ||
| classifiers=[ | ||
| 'Intended Audience :: Developers', | ||
| 'Operating System :: Linux', | ||
| 'Programming Language :: Python :: 2.7', | ||
| 'Programming Language :: Python :: 3.5', | ||
| 'Programming Language :: Python', | ||
| ], | ||
| keywords='SONiC sonic PYTHON python COMMON common', | ||
| ) | ||
|
|
Empty file.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,81 @@ | ||
| import imp | ||
| import signal | ||
| import sys | ||
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| from . import device_info | ||
| from .logger import Logger | ||
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| # | ||
| # Constants ==================================================================== | ||
| # | ||
| REDIS_TIMEOUT_MSECS = 0 | ||
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| EEPROM_MODULE_NAME = 'eeprom' | ||
| EEPROM_CLASS_NAME = 'board' | ||
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| # | ||
| # Helper functions ============================================================= | ||
| # | ||
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| def db_connect(db_name): | ||
| from swsscommon import swsscommon | ||
| return swsscommon.DBConnector(db_name, REDIS_TIMEOUT_MSECS, True) | ||
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| # | ||
| # DaemonBase =================================================================== | ||
| # | ||
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| class DaemonBase(Logger): | ||
| def __init__(self, log_identifier): | ||
| super(DaemonBase, self).__init__(log_identifier, Logger.LOG_FACILITY_DAEMON) | ||
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| # Register our default signal handlers, unless the signal already has a | ||
| # handler registered, most likely from a subclass implementation | ||
| if not signal.getsignal(signal.SIGHUP): | ||
| signal.signal(signal.SIGHUP, self.signal_handler) | ||
| if not signal.getsignal(signal.SIGINT): | ||
| signal.signal(signal.SIGINT, self.signal_handler) | ||
| if not signal.getsignal(signal.SIGTERM): | ||
| signal.signal(signal.SIGTERM, self.signal_handler) | ||
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| # Default signal handler; can be overridden by subclass | ||
| def signal_handler(self, sig, frame): | ||
| if sig == signal.SIGHUP: | ||
| log_info("DaemonBase: Caught SIGHUP - ignoring...") | ||
| elif sig == signal.SIGINT: | ||
| log_info("DaemonBase: Caught SIGINT - exiting...") | ||
| sys.exit(128 + sig) | ||
| elif sig == signal.SIGTERM: | ||
| log_info("DaemonBase: Caught SIGTERM - exiting...") | ||
| sys.exit(128 + sig) | ||
| else: | ||
| log_warning("DaemonBase: Caught unhandled signal '{}'".format(sig)) | ||
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| # Loads platform specific platform module from source | ||
| def load_platform_util(self, module_name, class_name): | ||
| platform_util = None | ||
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| # Get path to platform and hwsku | ||
| (platform_path, hwsku_path) = device_info.get_path_to_platform_and_hwsku() | ||
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| try: | ||
| module_file = "/".join([platform_path, "plugins", module_name + ".py"]) | ||
| module = imp.load_source(module_name, module_file) | ||
| except IOError as e: | ||
| raise IOError("Failed to load platform module '%s': %s" % (module_name, str(e))) | ||
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| try: | ||
| platform_util_class = getattr(module, class_name) | ||
| # board class of eeprom requires 4 paramerters, need special treatment here. | ||
| if module_name == EEPROM_MODULE_NAME and class_name == EEPROM_CLASS_NAME: | ||
| platform_util = platform_util_class('','','','') | ||
| else: | ||
| platform_util = platform_util_class() | ||
| except AttributeError as e: | ||
| raise AttributeError("Failed to instantiate '%s' class: %s" % (class_name, str(e))) | ||
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| return platform_util | ||
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| # Runs daemon | ||
| def run(self): | ||
| raise NotImplementedError() |
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