From 8df0e487b73442d0a7bd0c043616f48f75e1c305 Mon Sep 17 00:00:00 2001
From: davidh-ssec <david.hoese@ssec.wisc.edu>
Date: Tue, 5 Sep 2017 08:53:42 -0500
Subject: [PATCH] Copy ceilometer code from old subversion repos
---
AossCeilo/CONFIG.py | 118 +++++++++++
AossCeilo/CONFIG.pyc | Bin 0 -> 8079 bytes
AossCeilo/__init__.py | 73 +++++++
AossCeilo/ceilo.ncml | 421 +++++++++++++++++++++++++++++++++++++
AossCeilo/ingest.py | 203 ++++++++++++++++++
AossCeilo/message.py | 472 ++++++++++++++++++++++++++++++++++++++++++
AossCeilo/nc.py | 281 +++++++++++++++++++++++++
AossCeilo/tidy.py | 270 ++++++++++++++++++++++++
README.rst | 3 +
setup.py | 16 ++
10 files changed, 1857 insertions(+)
create mode 100644 AossCeilo/CONFIG.py
create mode 100644 AossCeilo/CONFIG.pyc
create mode 100644 AossCeilo/__init__.py
create mode 100644 AossCeilo/ceilo.ncml
create mode 100755 AossCeilo/ingest.py
create mode 100644 AossCeilo/message.py
create mode 100644 AossCeilo/nc.py
create mode 100644 AossCeilo/tidy.py
create mode 100644 setup.py
diff --git a/AossCeilo/CONFIG.py b/AossCeilo/CONFIG.py
new file mode 100644
index 0000000..150d360
--- /dev/null
+++ b/AossCeilo/CONFIG.py
@@ -0,0 +1,118 @@
+"""This module holds all directory/path/URL information for metobs.ceilo
+packages. This file should be the only place that holds this static information.
+
+This file should not do any file manipulation at all, only return strings or pass
+other static information such as what plot number goes with what data.
+
+This module will check for environment variables to create constants of PATHS
+and URL bases. It also has functions for getting file locations for any file
+for a specified day.
+"""
+import os
+import re
+from datetime import datetime, timedelta
+from metobs.util import RODict, CONFIG as c
+
+CEILO_INCOMING_DIR = os.environ.get( 'CEILO_INCOMING_DIR', '/beach/incoming/Instrument_Data/METOBS/RIG/Ceilo/raw')
+CEILO_PRAW_DIR = os.environ.get( 'CEILO_PRAW_DIR', '/beach/raw/aoss/ceilo')
+CEILO_CACHE_DIR = os.environ.get( 'CEILO_CACHE_DIR', '/beach/cache/aoss/ceilo')
+CEILO_LATEST_DIR = os.environ.get( 'CEILO_LATEST_DIR', '/beach/cache/aoss/ceilo')
+CEILO_DIR_FORMAT = os.environ.get( 'CEILO_DIR_FORMAT', '%Y/%m')
+CEILO_ASCII_LOC = os.environ.get( 'CEILO_ASCII_LOC', '/beach/cache/aoss/ceilo')
+CEILO_NC_LOC = os.environ.get( 'CEILO_NC_LOC', '/beach/cache/aoss/ceilo')
+CEILO_IMG_LOC = os.environ.get( 'CEILO_IMG_LOC', 'http://metobs.ssec.wisc.edu/pub/cache/aoss/ceilo')
+inst = 'ceilo'
+RE_DIGITS = re.compile(r'\d+')
+
+
+def get_incoming_dir():
+ "Return incoming directory for specified date"
+ return os.path.join( CEILO_INCOMING_DIR )
+
+def get_praw_dir(when = None):
+ "Return raw directory for specified date and data_type"
+ when = when or datetime.now()
+ return os.path.join( CEILO_PRAW_DIR, when.strftime( CEILO_DIR_FORMAT ) )
+
+def get_sraw_dir(when = None):
+ "Return raw directory for specified date and data_type"
+ raise NotImplementedError("This function is not used anymore, there should only be one primary storage location")
+ #when = when or datetime.now()
+ #return os.path.join( CEILO_SRAW_DIR, when.strftime( CEILO_DIR_FORMAT ) )
+
+def get_cache_dir(data_type, when = None):
+ "Return cache directory for specified date and data_type"
+ when = when or datetime.now()
+ return os.path.join( CEILO_CACHE_DIR, data_type, when.strftime( CEILO_DIR_FORMAT ) )
+
+def get_latest_dir():
+ "Return latest directory"
+ return os.path.join( CEILO_LATEST_DIR )
+
+def get_ascii_filename(when = None, site="rig", description=""):
+ "Return the standard filename of the ascii file for the specified date"
+ when = when or datetime.now()
+ return c.get_filename(site, inst, when, ext='ascii', description=description)
+
+def get_ascii_url(when = None, site="rig", description=""):
+ "Return the standard url of the ascii file for the specified date"
+ when = when or datetime.now()
+ return os.path.join(CEILO_ASCII_LOC, 'ascii', when.strftime(CEILO_DIR_FORMAT),
+ get_ascii_filename(when, site=site, description=description))
+
+def get_nc_filename(when = None, site="rig", description=""):
+ "Return the standard filename of the netCDF file for the specified date"
+ when = when or datetime.now()
+ return c.get_filename(site, inst, when, ext='nc', description=description)
+
+def get_nc_url(when = None, site="rig", description=""):
+ "Return the standard url of the netCDF file for the specified date"
+ when = when or datetime.now()
+ return os.path.join(CEILO_NC_LOC, 'nc', when.strftime(CEILO_DIR_FORMAT),
+ get_nc_filename(when, site=site, description=description))
+
+def get_img_filename(begin, end, ptype=1, tag='', site="rig", description=""):
+ "Return the standard filename of the image that goes from begin to end"
+ pname = _handle_plot_type(ptype)
+ return c.get_filename(site, inst, begin, end=end, ext="png", plotname=pname, description=description, tag=tag)
+
+def get_quicklook_filename(begin, end, ptype=1, site='rig', description=''):
+ return get_img_filename(begin, end, ptype, tag='', site=site, description=description)
+
+def get_thumbnail_filename(begin, end, ptype=1, site='rig', description=''):
+ return get_img_filename(begin, end, ptype, tag='tn', site=site, description=description)
+
+def get_img_url(begin, end, ptype=1, tag='', site="rig", description=""):
+ "Return the standard url of the image that goes from begin to end"
+ return os.path.join(CEILO_IMG_LOC, 'img', begin.strftime(CEILO_DIR_FORMAT),
+ get_img_filename(begin,end,ptype,tag=tag, site=site, description=description))
+
+def get_quicklook_url(begin, end, ptype=1, site='rig', description=''):
+ return get_img_url(begin, end, ptype, tag='', site=site, description=description)
+
+def get_thumbnail_url(begin, end, ptype=1, site='rig', description=''):
+ return get_img_url(begin, end, ptype, tag='tn', site=site, description=description)
+
+def rename_incoming(incoming_file, site='rig', description=''):
+ file_date = datetime(*tuple( [ int(x) for x in RE_DIGITS.findall(incoming_file) ] ))
+ present_date = datetime.now()
+ praw = get_praw_dir(when = file_date)
+ cache = get_cache_dir('ascii', when = file_date)
+ rn = get_ascii_filename(when = file_date, site=site, description=description)
+ remove = file_date.date() < (present_date - timedelta(days=30)).date()
+ return praw,cache,rn,remove
+
+def get_type_name():
+ return RODict({1:'Backscatter',
+ 2:'Cloud Base Height',
+ 3:'Vertical Visibility'})
+
+def _handle_plot_type(plottype=1):
+ if plottype == 1:
+ return ''
+ elif plottype == 2:
+ return ''
+ elif plottype == 3:
+ return ''
+ else:
+ raise ValueError("Plot type must be between 1-3")
diff --git a/AossCeilo/CONFIG.pyc b/AossCeilo/CONFIG.pyc
new file mode 100644
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diff --git a/AossCeilo/__init__.py b/AossCeilo/__init__.py
new file mode 100644
index 0000000..9b4b4d2
--- /dev/null
+++ b/AossCeilo/__init__.py
@@ -0,0 +1,73 @@
+__import__('pkg_resources').declare_namespace(__name__)
+__docformat__ = 'Epytext'
+
+import os
+from metobs.ceilo import CONFIG as c
+
+instrument_name = 'ceilo'
+
+def get_ascii_name(dt, site='rig'):
+ """
+ Make a standard filename for a tower ascii file.
+
+ @type dt: datetime
+ @param dt: datetime of the url to generate.
+ @type site: str
+ @param site: Name of an implemented instrument site
+ """
+ return c.get_ascii_filename(dt)
+
+def get_nc_name(dt, site='rig'):
+ """
+ Make a standard filename for a ceilometer netcdf file.
+
+ @type dt: datetime
+ @param dt: datetime of the url to generate.
+ @type site: str
+ @param site: Name of an implemented instrument site
+ """
+ return c.get_nc_filename(dt)
+
+def get_thumbnail_name(begin, end=None, site='rig', plottype=1):
+ """Make a standard filename for a ceilometer image thumbnail file.
+ """
+ return c.get_image_filename(begin, end, ptype=plottype, tag='tn')
+
+def get_nc_url(dt, site='rig', host=None):
+ """
+ Get a URL to a ceilometer NetCDF file.
+
+ @type dt: datetime
+ @param dt: datetime of the url to generate.
+ @type site: str
+ @param site: Name of an implemented instrument site
+
+ @rtype: str
+ @return: A full URL suitable for OPeNDAP access
+ """
+ return c.get_nc_url(dt)
+
+def get_ascii_url(dt, site="rig", host=None):
+ """Get a URL to a ceilometer ASCII file on the opendap server
+
+ @type dt: datetime
+ @param dt: datetime of the url to generate.
+ @type site: str
+ @param site: Name of an implemented instrument site
+
+ @rtype: str
+ @return: A full URL suitible for HTTP access
+ """
+ return c.get_ascii_url(dt)
+
+def get_thumbnail_url(begin, end=None, site="rig", host=None, plottype=1):
+ return c.get_image_url(begin, end, ptype=plottype, tag='tn')
+
+def get_image_url(begin, end=None, site="rig", host=None, plottype=1):
+ return c.get_image_url(begin, end, ptype=plottype, tag='')
+
+def get_type_name():
+ return c.get_type_name()
+
+def _handle_plottype(plottype=1):
+ return c._handle_plot_type(plottype)
diff --git a/AossCeilo/ceilo.ncml b/AossCeilo/ceilo.ncml
new file mode 100644
index 0000000..cd17b4a
--- /dev/null
+++ b/AossCeilo/ceilo.ncml
@@ -0,0 +1,421 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<netcdf xmlns="http://www.unidata.ucar.edu/namespaces/netcdf/ncml-2.2">
+ <dimension name="time" isUnlimited="true" />
+ <dimension name="range" length="256" />
+ <dimension name="string_len" length="8" />
+ <attribute name="Conventions" type="String" value="CF-1.3" />
+ <attribute name="title" type="String" value="Rooftop Instrument Group(RIG) Ceilometer obervations" />
+ <attribute name="institution" type="String" value="University of Wisconsin
+Space Science and Engineering Center
+1225 W. Dayton St.
+Madison, WI 53706" />
+ <attribute name="source" type="String" value="surface observation" />
+ <attribute name="history" type="String" value="" />
+ <attribute name="references" type="String" value="http://metobs.ssec.wisc.edu" />
+ <attribute name="comment" type="String" value="" />
+
+ <attribute name="site_id" type="String" value="" />
+ <attribute name="facility_id" type="String" value="" />
+ <attribute name="sample_int" type="String" value="15 seconds" />
+ <attribute name="serial_number" type="String" value="" />
+ <attribute name="Mentor_QC_Field_Information" type="String" value="For each qc field interpret the values as follows:
+
+Basic mentor QC checks (bit values):
+==========================================
+0x0 = value is within the specified range
+0x1 = value is equal to 'missing_value'
+0x2 = value is less than the 'valid_min'
+0x4 = value is greater than the 'valid_max'
+0x8 = value failed the 'valid_delta' check
+
+If the value is a 'missing_value' no min, max, or delta checks are performed.
+
+The delta checks are done by comparing each data value to the one just
+prior to it in time. If a previous data value does not exist or is a
+'missing_value' the delta check will not be performed.
+
+Note that the delta computation for multi-dimensioned data compares the
+absolute value between points in the same spatial location to the previous
+point in time.
+
+If the associated non-QC field does not contain any mentor-specified minimum,
+maximum, or delta information a qc_field is not generated.
+" />
+
+
+ <variable name="base_time" type="int">
+ <attribute name="long_name" type="String" value="Time of first record in Epoch" />
+ <attribute name="units" type="String" value="seconds since 1970-1-1 0:00:00 0:00" />
+ <attribute name="_FillValue" type="int" value="-9999" />
+ </variable>
+
+
+ <variable name="time_offset" shape="time" type="int">
+ <attribute name="long_name" type="String" value="Time offset from base_time" />
+ <attribute name="units" type="String" value="" />
+ <attribute name="_FillValue" type="int" value="-9999" />
+ </variable>
+
+
+ <variable name="time" shape="time" type="int">
+ <attribute name="long_name" type="String" value="Time offset from midnight" />
+ <attribute name="units" type="String" value="" />
+ <attribute name="_FillValue" type="int" value="-9999" />
+ </variable>
+
+
+ <variable name="range" shape="range" type="double">
+ <attribute name="long_name" type="String" value="Distance to the center of the corresponding range bin." />
+ <attribute name="units" type="String" value="m" />
+ <attribute name="missing_value" type="double" value="-9999." />
+ <attribute name="_FillValue" type="double" value="-9999." />
+ <attribute name="accuracy" type="String" value="30 meters" />
+ </variable>
+
+
+ <variable name="first_cbh" shape="time" type="double">
+ <attribute name="long_name" type="String" value="Lowest cloud base height detected." />
+ <attribute name="standard_name" type="String" value="cloud_base_altitude" />
+ <attribute name="units" type="String" value="m" />
+ <attribute name="valid_min" type="double" value="0." />
+ <attribute name="valid_max" type="double" value="7620." />
+ <attribute name="missing_value" type="double" value="-9999." />
+ <attribute name="_FillValue" type="double" value="-9999." />
+ <attribute name="valid_min" type="double" value="0" />
+ <attribute name="valid_max" type="double" value="7620." />
+ <attribute name="description" type="String" value=" If detection_status = 1, 2 or 3,
+ lowest cloud base height measured.
+ If detection_status = 4 this value
+ will be stored as -9999 and a value
+ for vertical_visibility will be stored.
+ If detection_status = 0 or 5, -9999 will
+ be stored for this value and vertical_visibility.
+ (5 slashes were read from field)." />
+ </variable>
+
+
+ <variable name="vertical_visibility" shape="time" type="double">
+ <attribute name="long_name" type="String" value="Vertical visibility" />
+ <attribute name="standard_name" type="String" value="visibility_in_air" />
+ <attribute name="units" type="String" value="m" />
+ <attribute name="valid_min" type="double" value="0." />
+ <attribute name="valid_max" type="double" value="7620." />
+ <attribute name="missing_value" type="double" value="-9999." />
+ <attribute name="_FillValue" type="double" value="-9999." />
+ <attribute name="description" type="String" value="This field will only be stored if detection_status
+ is = 4. In all other cases, a value of -9999 will
+ be recorded." />
+ </variable>
+
+
+ <variable name="second_cbh" shape="time" type="double">
+ <attribute name="long_name" type="String" value="Second lowest cloud base height" />
+ <attribute name="standard_name" type="String" value="cloud_base_altitude" />
+ <attribute name="units" type="String" value="m" />
+ <attribute name="missing_value" type="double" value="-9999." />
+ <attribute name="_FillValue" type="double" value="-9999." />
+ <attribute name="valid_min" type="double" value="0" />
+ <attribute name="valid_max" type="double" value="7620." />
+ <attribute name="description" type="String" value=" If detection_status = 2 or 3, a second
+ cloud base was detected. This value is
+ the distance from the ground to the second
+ cloud base.
+ If detection_status = 4, -9999 will be recorded
+ here and a value for alt_highest_signal
+ will be recorded.
+ If detection_status = 5, -9999 will be recorded
+ for this value and for alt_highest_signal" />
+ </variable>
+
+
+ <variable name="alt_highest_signal" shape="time" type="double">
+ <attribute name="long_name" type="String" value="Altitude of highest signal" />
+ <attribute name="units" type="String" value="m" />
+ <attribute name="missing_value" type="double" value="-9999." />
+ <attribute name="_FillValue" type="double" value="-9999." />
+ <attribute name="valid_min" type="double" value="0" />
+ <attribute name="valid_max" type="double" value="7620." />
+ <attribute name="description" type="String" value=" If detection_status = 4, this value is the
+distance from the ground to the highest signal
+ detected.
+ If detection_status = 0, 1, 2, 3 or 5, -9999
+ will be recorded." />
+ </variable>
+
+
+ <variable name="third_cbh" shape="time" type="double">
+ <attribute name="long_name" type="String" value="Third cloud base height" />
+ <attribute name="standard_name" type="String" value="cloud_base_altitude" />
+ <attribute name="units" type="String" value="m" />
+ <attribute name="missing_value" type="double" value="-9999." />
+ <attribute name="_FillValue" type="double" value="-9999." />
+ <attribute name="valid_min" type="double" value="0" />
+ <attribute name="valid_max" type="double" value="7620." />
+ <attribute name="description" type="String" value=" If detection_status = 3, this is the distance
+ from the ground to the base of the highest
+ cloud.
+ If detection = 0, 1, 2, 4 or 5, -9999 will be
+ stored here. In this case, ///// was read from field." />
+ </variable>
+
+
+
+
+ <variable name="sum_backscatter" shape="time" type="double">
+ <attribute name="long_name" type="String" value="SUM of detected and normalized backscatter" />
+ <attribute name="units" type="String" value="1.0 sr-1" />
+ <attribute name="valid_min" type="double" value="0." />
+ <attribute name="valid_max" type="double" value="999." />
+ <attribute name="missing_value" type="double" value="-9999." />
+ <attribute name="_FillValue" type="double" value="-9999." />
+ <attribute name="description" type="String" value="Multiplied by scaling factor
+times 10^4. At scaling factor 100 the sum range,
+which is 0 to 999, this corresponds to integrated
+backscatter, which ranges from 0 to 0.0999 srad^-1" />
+ </variable>
+
+
+ <variable name="backscatter" shape="time range" type="double">
+ <attribute name="long_name" type="String" value="Backscatter" />
+ <attribute name="units" type="String" value="1.0E-7 m-1.sr-1" />
+ <attribute name="missing_value" type="double" value="-9999." />
+ <attribute name="_FillValue" type="double" value="-9999." />
+ <attribute name="description" type="String" value="Data is range and sensitivity normalized backscatter, units, (10000 - srad - km)^-1 unless otherwise scaled by
+scaling parameter.
+
+The length of each range bin corresponds to
+ (c/2)*(200ns +/14 ns) = (approximately 30 m)." />
+ </variable>
+
+ <variable name="detection_status" shape="time" type="int">
+ <attribute name="long_name" type="String" value="Detection status." />
+ <attribute name="missing_value" type="int" value="-9999" />
+ <attribute name="_FillValue" type="int" value="-9999" />
+ <attribute name="valid_min" type="int" value="0" />
+ <attribute name="valid_max" type="int" value="5" />
+ <attribute name="description" type="String" value="0=No significant backscatter
+1=One cloud base detected
+2=Two cloud bases detected
+3=Three cloud bases detected
+4=Full obscuration determined but no cloud
+ base detected.
+5=Some obscuration detected but determined
+ to be transparent." />
+ </variable>
+
+
+ <variable name="status_flag" shape="time" type="char">
+ <attribute name="long_name" type="String" value="Ceilometer status indicator." />
+ <attribute name="missing_value" type="char" value=" " />
+ <attribute name="description" type="String" value="Warning and alarm information as follows
+ 0 = Self-check OK
+ W = At least one Warning active, no Alarms
+ A = At least one Alarm active" />
+ </variable>
+
+
+ <variable name="laser_pulse_energy" shape="time" type="double">
+ <attribute name="long_name" type="String" value="Laser pulse energy" />
+ <attribute name="units" type="String" value="%" />
+ <attribute name="valid_min" type="double" value="0." />
+ <attribute name="valid_max" type="double" value="999." />
+ <attribute name="missing_value" type="double" value="-9999." />
+ <attribute name="_FillValue" type="double" value="-9999." />
+ <attribute name="comment" type="String" value="Percentage of nominal factory setting." />
+ </variable>
+
+
+
+
+ <variable name="laser_temperature" shape="time" type="double">
+ <attribute name="long_name" type="String" value="Laser temperature" />
+ <attribute name="units" type="String" value="degC" />
+ <attribute name="valid_min" type="double" value="-50." />
+ <attribute name="valid_max" type="double" value="99." />
+ <attribute name="missing_value" type="double" value="-9999." />
+ <attribute name="_FillValue" type="double" value="-9999." />
+ </variable>
+
+
+
+
+ <variable name="receiver_sensitivity" shape="time" type="double">
+ <attribute name="long_name" type="String" value="Receiver sensitivity" />
+ <attribute name="units" type="String" value="%" />
+ <attribute name="valid_min" type="double" value="0." />
+ <attribute name="valid_max" type="double" value="999." />
+ <attribute name="missing_value" type="double" value="-9999." />
+ <attribute name="_FillValue" type="double" value="-9999." />
+ <attribute name="comment" type="String" value="Percentage of nominal factory setting." />
+ </variable>
+
+
+ <variable name="window_contamination" shape="time" type="double">
+ <attribute name="long_name" type="String" value="Window contamination" />
+ <attribute name="units" type="String" value="0.0010 V" />
+ <attribute name="valid_min" type="double" value="0." />
+ <attribute name="valid_max" type="double" value="2500." />
+ <attribute name="_FillValue" type="double" value="-9999." />
+ <attribute name="comment" type="String" value="Millivolts measured at the internal ADC input" />
+ </variable>
+
+
+ <variable name="tilt_angle" shape="time" type="double">
+ <attribute name="long_name" type="String" value="Tilt angle" />
+ <attribute name="units" type="String" value="degrees" />
+ <attribute name="valid_min" type="double" value="-15." />
+ <attribute name="valid_max" type="double" value="90." />
+ <attribute name="valid_delta" type="double" value="1." />
+ <attribute name="missing_value" type="double" value="-9999." />
+ <attribute name="_FillValue" type="double" value="-9999." />
+ <attribute name="description" type="String" value="If Angle Correction is Off detection values are distances not altitudes" />
+ </variable>
+
+
+
+
+ <variable name="background_light" shape="time" type="double">
+ <attribute name="long_name" type="String" value="Background light" />
+ <attribute name="units" type="String" value="0.0010 V" />
+ <attribute name="valid_min" type="double" value="0." />
+ <attribute name="valid_max" type="double" value="2500." />
+ <attribute name="missing_value" type="double" value="-9999." />
+ <attribute name="_FillValue" type="double" value="-9999." />
+ <attribute name="comment" type="String" value="Millivolts measured at the internal ADC input" />
+ </variable>
+
+
+ <variable name="measurement_parameters" shape="time string_len" type="char">
+ <attribute name="long_name" type="String" value="6 character string describing instrument measurement parameters" />
+ <attribute name="missing_value" type="String" value="-" />
+ <attribute name="comment" type="String" value="(L)ong/(S)hort - (F)req - pulse qty r ^(7) + 1
+ - gain (H)igh/(L)ow - bandwidth (N)arrow/(W)ide -
+sampling (5) / (1)0 / (2)0 Mhz" />
+ </variable>
+
+
+ <variable name="status_string" shape="time string_len" type="char">
+ <attribute name="long_name" type="String" value="Warning and alarm status bits" />
+ <attribute name="missing_value" type="String" value="-" />
+ <attribute name="comment1" type="String" value="Has Form FEDCBA98. Each character is a hexadecimal representation of
+four bits, altogether 32 bits. See additional comments for interpretation." />
+ <attribute name="commentF" type="String" value="(8000 0000) = Laser temperature shut-off(A)
+(4000 0000)= Laser failure(A)
+(2000 0000)= Receiver failure(A)
+(1000 0000)= Voltage failure(A)" />
+ <attribute name="commentE" type="String" value="(0800 0000) = Profile error(A)" />
+ <attribute name="commentD" type="String" value="(0080 0000) = Window contaminated(W)
+(0040 0000)= Battery low(W)
+(0020 0000)= Laser power low(W)
+(0010 0000)= Laser temperature high or low(W)" />
+ <attribute name="commentC" type="String" value="(0008 0000) = Internal temperature high or low(W)
+(0004 0000)= Voltage high or low(W)
+(0002 0000)= Relative humidity is > 85 % (W)
+(0001 0000)= Receiver optical cross-talk compensation poor(W)" />
+ <attribute name="commentB" type="String" value="(0000 8000) = Fan suspect(W)
+(0000 4000)= Profile warning(W)" />
+ <attribute name="commentA" type="String" value="(0000 0800) = Blower is ON
+(0000 0400)= Blower heater is ON
+(0000 0200)= Internal heater is ON
+(0000 0100)= Units are METERS if ON, else FEET." />
+ <attribute name="comment9" type="String" value="(0000 0080) = Polling mode is ON
+(0000 0040)= Working from battery
+(0000 0020)= Single sequence mode is ON
+(0000 0010)= Manual Settings are effective." />
+ <attribute name="comment8" type="String" value="(0000 0008) = Tilt angle is > 45 degrees." />
+ </variable>
+
+
+ <variable name="lat" type="double">
+ <attribute name="standard_name" type="String" value="latitude" />
+ <attribute name="long_name" type="String" value="north latitude" />
+ <attribute name="units" type="String" value="degrees_north" />
+ <attribute name="valid_min" type="double" value="-90." />
+ <attribute name="valid_max" type="double" value="90." />
+ <attribute name="_FillValue" type="double" value="-9999." />
+ </variable>
+
+
+ <variable name="lon" type="double">
+ <attribute name="standard_name" type="String" value="longitude" />
+ <attribute name="long_name" type="String" value="east longitude" />
+ <attribute name="units" type="String" value="degrees_east" />
+ <attribute name="valid_min" type="double" value="-180." />
+ <attribute name="valid_max" type="double" value="180." />
+ <attribute name="_FillValue" type="double" value="-9999." />
+ </variable>
+
+
+ <variable name="alt" type="double">
+ <attribute name="standard_name" type="String" value="altitude" />
+ <attribute name="long_name" type="String" value="altitude" />
+ <attribute name="positive" type="String" value="up" />
+ <attribute name="units" type="String" value="m" />
+ <attribute name="_FillValue" type="double" value="-9999." />
+ </variable>
+
+ <variable name="qc_time" shape="time" type="int">
+ <attribute name="long_name" type="String" value="Results of quality checks on sample time" />
+ <attribute name="description" type="String" value="The qc_time values are calculated by comparing each sample
+time with the previous time (i.e. delta_t = t[n] - t[n-1]).
+If the 'qc_check_prior' flag is set the first sample time
+from a new raw file will be compared against the time just
+previous to it in the stored data. If the 'qc_check_prior'
+flag is not set the qc_time value for the first sample time
+will be set to 0
+
+The qc_time bit values are as follows:
+=========================================================
+0x0 = delta time is within the specified range
+0x1 = delta time is equal to 0, duplicate sample times
+0x2 = delta time is less than the 'delta_t_lower_limit'
+0x4 = delta time is greater than the 'delta_t_upper_limit'
+
+" />
+ <attribute name="delta_t_lower_limit" type="int" value="12" />
+ <attribute name="delta_t_upper_limit" type="int" value="18" />
+ <attribute name="prior_sample_flag" type="int" value="1" />
+ <attribute name="_FillValue" type="int" value="-9999" />
+ </variable>
+
+ <variable name="qc_first_cbh" shape="time" type="int">
+ <attribute name="long_name" type="String" value="Quality check results on field: Lowest cloud base height detected." />
+ <attribute name="_FillValue" type="int" value="-9999" />
+ </variable>
+
+ <variable name="qc_vertical_visibility" shape="time" type="int">
+ <attribute name="long_name" type="String" value="Quality check results on field: Vertical visibility" />
+ <attribute name="_FillValue" type="int" value="-9999" />
+ </variable>
+
+ <variable name="qc_second_cbh" shape="time" type="int">
+ <attribute name="long_name" type="String" value="Quality check results on field: Second lowest cloud base height" />
+ <attribute name="_FillValue" type="int" value="-9999" />
+ </variable>
+
+ <variable name="qc_alt_highest_signal" shape="time" type="int">
+ <attribute name="long_name" type="String" value="Quality check results on field: Altitude of highest signal" />
+ <attribute name="_FillValue" type="int" value="-9999" />
+ </variable>
+
+ <variable name="qc_third_cbh" shape="time" type="int">
+ <attribute name="long_name" type="String" value="Quality check results on field: Third cloud base height" />
+ <attribute name="_FillValue" type="int" value="-9999" />
+ </variable>
+
+ <variable name="qc_laser_pulse_energy" shape="time" type="int">
+ <attribute name="long_name" type="String" value="Quality check results on field: Laser pulse energy" />
+ <attribute name="_FillValue" type="int" value="-9999" />
+ </variable>
+
+ <variable name="qc_laser_temperature" shape="time" type="int">
+ <attribute name="long_name" type="String" value="Quality check results on field: Laser temperature" />
+ <attribute name="_FillValue" type="int" value="-9999" />
+ </variable>
+
+ <variable name="qc_tilt_angle" shape="time" type="int">
+ <attribute name="long_name" type="String" value="Quality check results on field: Tilt angle" />
+ <attribute name="_FillValue" type="int" value="-9999" />
+ </variable>
+
+</netcdf>
diff --git a/AossCeilo/ingest.py b/AossCeilo/ingest.py
new file mode 100755
index 0000000..697b1d7
--- /dev/null
+++ b/AossCeilo/ingest.py
@@ -0,0 +1,203 @@
+#!/usr/bin/env python
+"""Ingestor for Viasala CT25K Ceilometer.
+
+Reads messages from serial port injecting an epoch timestamp before the header
+of each message. No validation of message data is done.
+
+The output should match the legacy output written by the older Java software.
+
+In-general, to configure ingest:
+
+ 1. Install python >= 2.7
+ 2. Install metobs.ceilo
+ 3. Install rc_userboot.py
+ https://groups.ssec.wisc.edu/employee-info/for-programmers/programming-environment/rc-userboot
+ 4. Create a config file, see example in SVN
+ 5. Add ~/.bootrc to start ingest in screen detached session:
+ #!/usr/bin/env bash
+ screen -d -m $HOME/env/production/bin/ct25k_ingest $HOME/ceilo.cfg
+ 6. Create cronjob script to push data:
+ #!/usr/bin/env bash
+ export TZ="UTC-00:01:00"
+ SRC="$HOME/data/rig_ceilo-$(date +%Y-%m-%d).ascii"
+ if [ -e $SRC ]; then
+ rsync -aux $SRC rsync://tahiti.ssec.wisc.edu/incoming/Instrument_Data/METOBS/RIG/Ceilo/raw
+ fi
+ 7. Create cronjob for push
+ */5 * * * * $HOME/data/rsync_data.sh &> /dev/null
+
+"""
+import logging
+import time
+import re
+import os
+import signal
+from datetime import datetime, timedelta
+
+import serial
+
+# FIXME: bad-joo-joo
+logging._levelNames[9] = 'TRACE'
+logging._levelNames['TRACE'] = 9
+
+LOG = logging.getLogger(__name__)
+
+def epoch_secs(dt):
+ """Datetime to seconds from epoch.
+ """
+ return time.mktime(dt.utctimetuple())
+
+def is_header(line):
+ """Is the line a valid message 2 header.
+ """
+ return re.match(r'^\x01CT[A-Z0-9][0-9]{2}[2].\x02\r\n$', line)
+
+def process_lines(in_lines, ref_dt):
+ """Process lines from the serial port. Epoch timestamps are injected
+ before the message header. All lines are stripped of white space before
+ being returned, except for a NL before the epoch timestamp.
+ """
+ out_lines = []
+ num_hdrs = 0
+ for line in in_lines:
+ if is_header(line):
+ secs = epoch_secs(ref_dt - timedelta(seconds=15) * num_hdrs)
+ out_lines.append('%d\r\n' % secs)
+ num_hdrs += 1
+ out_lines.append(line)
+ return num_hdrs, out_lines
+
+def init_ceilo(portdev):
+ """Initialize ceilometer by sending default configuration values to
+ instrument. When this completes the instrument should be in autosend mode
+ and generating messages.
+ """
+ port = serial.Serial(port=portdev,
+ baudrate=2400,
+ bytesize=7,
+ parity='E',
+ stopbits=1,
+ timeout=1)
+ init_commands = ("\r\r\r",
+ "OPEN\r\n",
+ "SET MESSAGE MODE AUTOSEND\r\n",
+ "SET MESSAGE PORT DATA\r\n",
+ "SET MESSAGE TYPE MSG2\r\n",
+ "SET OPER_MODE CONTINUOUS\r\n",
+ "CLOSE\r\n")
+ for line in init_commands:
+ LOG.log(9, "SEND: %s", line.strip())
+ port.write(line)
+ port.flush()
+ lines = port.readlines()
+ for l in lines:
+ LOG.log(9, "RECV: %s", l.strip())
+
+ port.close()
+
+ return serial.Serial(port=portdev,
+ baudrate=2400,
+ bytesize=7,
+ parity='E',
+ stopbits=1,
+ timeout=7.5)
+
+def read_cfg(cfgfile):
+
+ from ConfigParser import SafeConfigParser
+ parser = SafeConfigParser()
+ parser.read(cfgfile)
+
+ return dict(parser.items('ct25k'))
+
+def main():
+
+ from argparse import ArgumentParser
+ parser = ArgumentParser()
+
+ levels = {'trace':9, 'debug':logging.DEBUG, 'info':logging.INFO,
+ 'warn':logging.WARN, 'error':logging.ERROR}
+ parser.add_argument('-v', dest="loglvl", choices=levels.keys(),
+ default='info')
+ parser.add_argument('-o', dest='outdir', default='.')
+ parser.add_argument('-f', dest='fmt', default='rig_ceilo-%Y-%m-%d.ascii',
+ help="output filename (supports date formatting)")
+ parser.add_argument('-p', dest='port', help="serial device")
+ parser.add_argument('-c', dest='cfgfile',
+ help="INI style config. If provided all other options are ignored")
+
+ args = parser.parse_args()
+
+ if args.cfgfile:
+ from logging.config import fileConfig
+ fileConfig(args.cfgfile)
+ config = read_cfg(args.cfgfile)
+ portdev = config.get('port')
+ filefmt = config.get('filefmt')
+ outdir = config.get('outdir')
+ else:
+ outdir = args.outdir
+ portdev = args.port
+ filefmt = args.fmt
+ loglvl = levels[args.loglvl]
+ logging.basicConfig(level=loglvl)
+
+ for name in ['portdev', 'filefmt', 'outdir']:
+ if not locals().get(name):
+ parser.print_usage()
+ parser.exit(1)
+
+ def datalog():
+ now = datetime.now()
+ if not datalog.fptr or now.date() > datalog.date:
+ datalog.date = now.date()
+ fn = datalog.date.strftime(filefmt)
+ fpth = os.path.join(outdir, fn)
+ if datalog.fptr:
+ LOG.info("closing %s", datalog.fptr.name)
+ datalog.fptr.close()
+ datalog.fptr = open(fpth, 'a')
+ LOG.info("opened %s", datalog.fptr.name)
+ return datalog.fptr
+ datalog.fptr = None
+
+ def handle_signal(*args, **kwargs):
+ LOG.warn("received TERM or INT")
+ signal.signal(signal.SIGTERM, handle_signal)
+ signal.signal(signal.SIGINT, handle_signal)
+
+ LOG.info("initializing ceilometer...")
+ port = init_ceilo(portdev)
+
+ LOG.info("starting ingest")
+
+ while True:
+
+ fptr = datalog()
+ LOG.log(9, "got log %s", fptr.name)
+
+ try:
+ in_lines = port.readlines()
+ LOG.debug("read %s lines", len(in_lines))
+
+ num_hdrs, out_lines = process_lines(in_lines, datetime.now())
+ LOG.debug("found %s potential messages", num_hdrs)
+ LOG.log(9, ''.join(out_lines))
+
+ LOG.debug("writing %s lines", len(out_lines))
+ fptr.write(''.join(out_lines))
+ fptr.flush()
+ except Exception as err:
+ if err.args and err.args[0] == 4:
+ # interrupted syscall
+ break
+ raise
+
+ try:
+ port.close()
+ except:
+ pass
+
+if __name__ == '__main__':
+
+ main()
diff --git a/AossCeilo/message.py b/AossCeilo/message.py
new file mode 100644
index 0000000..17e3c6c
--- /dev/null
+++ b/AossCeilo/message.py
@@ -0,0 +1,472 @@
+"""
+For processing Ceilometer CT25K Messages
+"""
+import logging
+from calendar import timegm
+from datetime import datetime
+#from urllib2 import urlopen
+from metobs.util.gen_open import open_ascii as urlopen
+
+from numpy import array
+
+LOG = logging.getLogger(__name__)
+
+#: Value to use for NetCDF missing_value attribute
+missing_value = -9999
+#: Function to determine if a value is a missing_value or not
+is_missing = lambda val: val == missing_value
+
+#: number of allowable missing values before backscatter is considered invalid
+BK_THRESH = 256 * .25
+
+START_OF_HEADING = '\x01'
+START_OF_TEXT = '\x02'
+END_OF_TEXT = '\x03'
+
+MANUAL_BLOWER_CONTROL = 2
+HIGH_BACKGROUND_RADIANCE = 4
+TILT_ANGLE_45_PLUS = 8
+MANUAL_SETTINGS_EFF = 16
+SINGLE_SEQ_ON = 32
+WORKING_FROM_BATT = 64
+POLLING_ON = 128
+UNITS_IN_METERS = 256
+INTERNAL_HEATER_ON = 512
+BLOWER_HEATER_ON = 1024
+BLOWER_ON = 2048
+
+BLOWER_SUSPECT = 32768
+RCV_OPTICAL_XTLK_POOR = 65536
+REL_HUMIDITY_HIGH = 131072
+VOLTAGE_ABNORMAL = 262144
+INT_TEMP_HIGH = 524288
+LASER_TEMP_HIGH = 1048576
+LASER_PWR_LOW = 2097152
+BATTERY_LOW = 4194304
+WINDOW_CONTAMINATED = 8388608
+
+VOLTAGE_FAILURE = 268435456
+RECEIVER_FAILURE = 536870912
+LASER_FAILURE = 1073741824
+LASER_TEMP_SHUTOFF = 2147483648
+
+WARNING_FLAGS = [BLOWER_SUSPECT,
+ RCV_OPTICAL_XTLK_POOR, REL_HUMIDITY_HIGH, VOLTAGE_ABNORMAL,
+ INT_TEMP_HIGH, LASER_TEMP_HIGH, LASER_PWR_LOW, BATTERY_LOW,
+ WINDOW_CONTAMINATED ]
+
+WARNING_MSGS = [
+ "Blower suspect", "Receiver optical cross-talk poor",
+ "Relative humidity is greater than 85%", "Voltage is low or high",
+ "Internal temperature is high or low", "Laser temperature is high",
+ "Laser power is low", "Battery is low", "Window is contaminated" ]
+
+INFO_FLAGS = [
+ MANUAL_BLOWER_CONTROL, HIGH_BACKGROUND_RADIANCE,
+ TILT_ANGLE_45_PLUS, MANUAL_SETTINGS_EFF, SINGLE_SEQ_ON,
+ WORKING_FROM_BATT, POLLING_ON, UNITS_IN_METERS, INTERNAL_HEATER_ON,
+ BLOWER_HEATER_ON, BLOWER_ON ]
+
+INFO_MSGS = [
+ "Using manual blower control", "Background radiance is high",
+ "Tilt angle is greater than 45 degrees",
+ "Manual settings are effective", "Single sequence mode is ON",
+ "Working from the battery", "Polling mode is ON",
+ "Units are in Meters", "Internal heater is ON",
+ "Blower heater is ON", "Blower is ON" ]
+
+ALARM_FLAGS = [VOLTAGE_FAILURE,
+ RECEIVER_FAILURE, LASER_FAILURE, LASER_TEMP_SHUTOFF]
+
+ALARM_MSGS = [
+ "VOLTAGE FAILURE", "RECEIVER FAILURE", "LASER FAILURE",
+ "LASER TEMPERATURE SHUT_OFF"]
+
+class MessageError(StandardError):
+ """General message error."""
+
+
+class Message2(object):
+ NUM_LINES = 20
+ def __init__(self, lines, stamp):
+ """Initialize this message, disecting the various message components
+ according to the CT25K Message 2 format.
+
+ The first line in a message is the header and it must start with a
+ SOH and end with SOT, and the entire message must end with EOT
+ ASCII chars to be valid. Assertion errors are raised if these
+ conditions are not met.
+
+ The backscatter is initially filled with L{missing_value} so if a
+ line is the incorrect length all of it's values will be missing_value.
+ Likewise, if a value cannot be parsed as a HEX string it's value will
+ be missing_value.
+
+ @param lines: Exactly the 20 lines that comprise a valid message
+ @type lines: list
+ @param stamp: The message time. If the 'stamp' is a naieve datetime the
+ tzinfo will be set to metobs.util.time.UTC, otherwise time operations
+ will proceed with provided tzinfo.
+ @type stamp: datetime
+
+ @raises MessageError: If this instance cannot be created due to an error
+ parsing.
+ """
+ assert len(lines) == self.NUM_LINES, \
+ "A Message2 must contain %s lines" % self.NUM_LINES
+
+ self._epoch = timegm(stamp.utctimetuple())
+
+ self._lines = lines
+ self._stamp = stamp
+
+ self._header = lines[0]
+ # strip non-printables
+ self._header = self._header.replace(START_OF_HEADING, '')
+ self._header = self._header.replace(START_OF_TEXT, '')
+
+ self._msg_num = int(self.header[5])
+ if self._msg_num != 2:
+ raise MessageError("Invalid message number", self.header)
+
+ self._status_string = lines[1][21:29]
+ self._status_flag = lines[1][1]
+
+ self._detection_status = _int(lines[1][0])
+ self._first_cbh = missing_value
+ self._second_cbh = missing_value
+ self._third_cbh = missing_value
+ if self.detection_status == 3:
+ self._third_cbh = _int(lines[1][15:20])
+ if self.detection_status == 2:
+ self._second_cbh = _int(lines[1][9:14])
+ if self.detection_status == 1:
+ self._first_cbh = _int(lines[1][3:8])
+
+ if self.detection_status == 4:
+ self._vertical_visibility = _int(lines[1][3:8])
+ self._alt_highest_signal = _int(lines[1][9:14])
+ else:
+ self._vertical_visibility = missing_value
+ self._alt_highest_signal = missing_value
+
+ meas_params = lines[2].split()
+ if len(meas_params) < 10:
+ LOG.warn("Invalid measurement parameters for message with time %s", self.epoch)
+ self._scale = _int(meas_params[0])
+ self._measurement_mode = _str(meas_params[1])
+ self._laser_pulse_energy = _float(meas_params[2])
+ self._laser_temperature = _float(meas_params[3])
+ self._receiver_sensitivity = _float(meas_params[4])
+ self._window_contamination = _float(meas_params[5])
+ self._tilt_angle = _float(meas_params[6])
+ self._background_light = _float(meas_params[7])
+ self._measurement_parameters = _str(meas_params[8])
+ self._sum_backscatter = _float(meas_params[9])
+
+ self._backscatter = parse_backscatter(lines[3:])
+
+ # backscatter can contain no more than BK_THRESH missing values
+ missing = [b for b in self._backscatter if is_missing(b)]
+ if len(missing) >= BK_THRESH:
+ raise MessageError("Backscatter errors exceeds threshold")
+
+ @property
+ def epoch(self):
+ return self._epoch
+ @property
+ def lines(self):
+ return self._lines
+ @property
+ def stamp(self):
+ return self._stamp
+ @property
+ def header(self):
+ return self._header
+ @property
+ def msg_num(self):
+ return self._msg_num
+ @property
+ def status_string(self):
+ return self._status_string
+ @property
+ def status_flag(self):
+ return self._status_flag
+ @property
+ def detection_status(self):
+ return self._detection_status
+ @property
+ def cbh(self):
+ return (self._first_cbh, self._second_cbh, self._third_cbh)
+ @property
+ def first_cbh(self):
+ return self._first_cbh
+ @property
+ def second_cbh(self):
+ return self._second_cbh
+ @property
+ def third_cbh(self):
+ return self._third_cbh
+ @property
+ def vertical_visibility(self):
+ return self._vertical_visibility
+ @property
+ def alt_highest_signal(self):
+ return self._alt_highest_signal
+ @property
+ def scale(self):
+ return self._scale
+ @property
+ def measurement_mode(self):
+ return self._measurement_mode
+ @property
+ def laser_pulse_energy(self):
+ return self._laser_pulse_energy
+ @property
+ def laser_temperature(self):
+ return self._laser_temperature
+ @property
+ def receiver_sensitivity(self):
+ return self._receiver_sensitivity
+ @property
+ def window_contamination(self):
+ return self._window_contamination
+ @property
+ def tilt_angle(self):
+ return self._tilt_angle
+ @property
+ def background_light(self):
+ return self._background_light
+ @property
+ def measurement_parameters(self):
+ return self._measurement_parameters
+ @property
+ def sum_backscatter(self):
+ return self._sum_backscatter
+ @property
+ def backscatter(self):
+ return self._backscatter
+
+ def warning(self):
+ """
+ @return: true if there is a warning indicated in the detection status string.
+ """
+ return str(self.detection_status) in 'wW'
+
+ def alarm(self):
+ """
+ @return: true if there is a alarm indicated in the detection status string.
+ """
+ return str(self.detection_status) in 'aA'
+
+ def check_status(self, flag):
+ """
+ Check the status of a particular flag.
+
+ @param flag: One of the flag constants
+ @type flag: number
+
+ @return: 0 if the flag is not set, otherwise the value of the flag.
+ """
+ return long(self.status_string, 16) & flag
+
+ def get_status_messages(self):
+ """
+ Get all status messages indicated in the device status string.
+
+ @return: 'alarms', 'warnings', and 'informational' messages.
+ """
+ messages = {'alarms':[], 'warnings':[], 'informational':[]}
+ for idx in range(len(WARNING_FLAGS)):
+ if long(self.status_string, 16) & WARNING_FLAGS[idx]:
+ messages['warnings'].append(WARNING_MSGS[idx])
+ for idx in range(len(ALARM_FLAGS)):
+ if long(self.status_string, 16) & ALARM_FLAGS[idx]:
+ messages['alarms'].append(ALARM_MSGS[idx])
+ for idx in range(len(INFO_FLAGS)):
+ if long(self.status_string, 16) & INFO_FLAGS[idx]:
+ messages['informational'].append(INFO_MSGS[idx])
+ return messages
+
+ def __cmp__(self, that):
+ """
+ Comparisons are done on message timestamps.
+ """
+ if self.stamp > that.stamp:
+ return 1
+ if self.stamp == that.stamp:
+ return 0
+ if self.stamp < that.stamp:
+ return -1
+
+ def __str__(self):
+ return '\n'.join([str(self.epoch)] + self.lines)
+
+class Message7(Message2):
+ """Same as message 2 with additional sky condition line.
+ """
+
+ NUM_LINES = 21
+
+ def __init__(self, lines, stamp):
+ super(Message7, self).__init__(lines, stamp)
+ self._sky_cond = parse_sky_condition(self.lines[-1])
+
+ @property
+ def sky_condition(self):
+ return self._sky_cond
+
+
+def hex_to_int(hval):
+ # convert from 2's complement
+ val = int(hval, 16)
+ if val > 32767:
+ val = -65536 + val
+ return val
+
+def _get(fcn, v, d):
+ try:
+ return fcn(v)
+ except:
+ pass
+ return d
+def _float(v):
+ return _get(float, v, missing_value)
+def _int(v):
+ return _get(int, v, missing_value)
+def _str(v):
+ return _get(str, v, '')
+
+def parse_sky_condition(line, feet=False):
+
+ parts = line.strip().split()
+
+ sky_cond = []
+ for idx in range(0, 8, 2):
+ amt = int(parts[idx])
+ if amt > 0 and amt < 9:
+ hght = int(parts[idx+1])
+ if feet: # feet
+ hght *= 100
+ else: # meters
+ hght *= 10
+ sky_cond.append((amt, hght))
+ elif amt == 0: # no clouds
+ sky_cond.append((0, missing_value))
+ elif amt == 9: # vertical visibility
+ # FIXME: ignoring this because we already have it
+ # from line 2, right?
+ pass
+ else: # amt in (-1, 99): # no data
+ sky_cond.append((missing_value, missing_value))
+
+ return sky_cond
+
+def parse_backscatter(data):
+
+ if isinstance(data, (str, unicode)):
+ lines = data.split('\n')
+ else:
+ lines = data
+
+ if len(lines) < 16:
+ raise MessageError("Expected 16 lines for backscatter")
+
+ backscatter = [missing_value] * 256
+ bidx = 0
+ for line in lines[:16]:
+ if len(line) < 67: # 3 chars for height, 64 for data
+ bidx += 16
+ continue
+ for idx in range(3, 67, 4):
+ hval = line[idx:idx+4]
+ try:
+ backscatter[bidx] = hex_to_int(hval)
+ except:
+ pass
+ bidx += 1
+
+ return backscatter
+
+def get_message_times(messages):
+ times = array([missing_value]*len(messages), 'l')
+ for i in range(len(messages)):
+ times[i] = timegm(messages[i].stamp.utctimetuple())
+ return times
+
+def get_message_met_data(messages):
+ """Compile message data into a single data dictionary.
+
+ @param messages: messages
+ @type messages: list
+
+ @return: Ceilometer data where keys are variable names from the netcdf file.
+ """
+ data = dict(
+ vertical_visibility = array([missing_value]*len(messages)),
+ alt_highest_signal = array([missing_value]*len(messages)),
+ first_cbh = array([missing_value]*len(messages)),
+ second_cbh = array([missing_value]*len(messages)),
+ third_cbh = array([missing_value]*len(messages)),
+ backscatter = array([[missing_value]*256 for idx in range(len(messages))])
+ )
+ for i in range(len(messages)):
+ data['alt_highest_signal'][i] = messages[i].highest_signal
+ data['vertical_visibility'][i] = messages[i].vertical_vis
+ data['first_cbh'][i] = messages[i].bases[0]
+ data['second_cbh'][i] = messages[i].bases[1]
+ data['third_cbh'][i] = messages[i].bases[2]
+ data['backscatter'][i][:] = array(messages[i].backscatter)
+
+ return data
+
+def get_message_hk_data(messages):
+ """
+ """
+ return {}
+
+def load_messages(url, on_error=None):
+ """Load messages from a message data file. All lines in the data file
+ are skipped until a proper start of message is encounterd.
+
+ @param url: URL to a message data file as generated by the Ceilometer
+ ingest software
+ @type url: str
+
+ @returns: Sequence of Messages sorted from oldest to newest.
+ """
+ fp = urlopen(url)
+ line = fp.readline()
+
+ # readline returned '', so there are no lines
+ if not line: return tuple()
+
+ # message must start with epoch time, so disregard partial
+ # messages until we reach one
+ while line and not line.strip().isdigit():
+ line = fp.readline()
+
+ # start of first complete message
+ messages = []
+ done = not line # if we have a line, we're not done
+ while not done:
+
+ lines = [line] + [fp.readline() for i in range(Message2.NUM_LINES)]
+ if '' in lines:
+ done = True
+ continue
+
+ stamp = datetime.fromtimestamp(int(lines[0]))
+ try:
+ messages.append(Message2([l.strip() for l in lines[1:]], stamp))
+ except Exception, e:
+ if hasattr(on_error, '__call__'):
+ on_error(lines, e)
+ # disregard possible garbage between messages
+ line = fp.readline()
+ while line and not line.strip().isdigit():
+ line = fp.readline()
+
+ messages.sort()
+
+ return tuple(messages)
diff --git a/AossCeilo/nc.py b/AossCeilo/nc.py
new file mode 100644
index 0000000..e16e3cc
--- /dev/null
+++ b/AossCeilo/nc.py
@@ -0,0 +1,281 @@
+"""
+Library for creating and manipulating Viasala CT25K Ceilometer NetCDF files.
+"""
+__author__ = 'Bruce Flynn, SSEC'
+__version__ = '$Revision: 1.15 $'
+#$Source: /cvsroot/TOOLS/dev/metobs/python/instruments/ceilometer/metobs/ceilo/nc.py,v $
+__docformat__ = 'Epytext'
+
+from os import path, makedirs
+import logging
+from time import gmtime
+from calendar import timegm
+from datetime import datetime, timedelta
+from urllib2 import HTTPError#, urlopen
+
+import pkg_resources
+from numpy import array, zeros, int32, int8, uint16
+from pycdf import NC
+
+from metobs import mytime
+from metobs.util.gen_open import open_ascii as urlopen
+from metobs.util.nc import create_nc_from_ncml
+from metobs.ceilo.CONFIG import get_ascii_url, get_nc_filename, get_cache_dir as _get_destination_dir
+from message import Message2, load_messages
+
+#: valid RIG ceilometer variables
+_ceilo_variables = [
+'laser_pulse_energy',
+ 'third_cbh',
+ 'base_time',
+ 'background_light',
+ 'tilt_angle',
+ 'second_cbh',
+ 'alt',
+ 'receiver_sensitivity',
+ 'measurement_parameters',
+ 'detection_status',
+ 'lon',
+ 'laser_temperature',
+ 'qc_laser_pulse_energy',
+ 'qc_alt_highest_signal',
+ 'sum_backscatter',
+ 'first_cbh',
+ 'alt_highest_signal',
+ 'backscatter',
+ 'qc_time',
+ 'vertical_visibility',
+ 'window_contamination',
+ 'qc_first_cbh',
+ 'lat',
+ 'qc_laser_temperature',
+ 'status_flag',
+ 'qc_second_cbh',
+ 'status_string',
+ 'range',
+ 'time',
+ 'qc_third_cbh',
+ 'qc_tilt_angle',
+ 'time_offset',
+ 'qc_vertical_visibility']
+
+_log = logging.getLogger(__name__)
+
+#: geo location of 1225 W. Dayton St, Madison WI 53706 (according to google maps).
+ssec_loc = (43.08543, -89.271632)
+
+def _get_value(var, value):
+ """Get a variables fill value if present, otherwise use message.missing_value.
+ """
+ if value != value and hasattr(var, '_FillValue'):
+ return var._FillValue
+ return value
+
+def _get_message_times(nc, messages):
+ times = zeros(len(messages), 'l')
+ for i in range(len(messages)):
+ times[i] = timegm(messages[i].stamp.utctimetuple())
+ return times
+
+def _get_message_met_data(nc, messages):
+ """Compile message data into a singal data dictionary.
+
+ @param nc:
+ @param messages: List of Messages
+
+ @return: Dictionary of ceilometer data where keys are variable names from the
+ netcdf file.
+ """
+ data = dict(
+ vertical_visibility = zeros(len(messages)),
+ alt_highest_signal = zeros(len(messages)),
+ first_cbh = zeros(len(messages)),
+ second_cbh = zeros(len(messages)),
+ third_cbh = zeros(len(messages)),
+ backscatter = array([zeros(256) for idx in range(len(messages))])
+ )
+ for i in range(len(messages)):
+ data['alt_highest_signal'][i] = \
+ _get_value(nc.var('alt_highest_signal'), messages[i].alt_highest_signal)
+ data['vertical_visibility'][i] = \
+ _get_value(nc.var('vertical_visibility'), messages[i].vertical_visibility)
+ data['first_cbh'][i] = \
+ _get_value(nc.var('first_cbh'), messages[i].first_cbh)
+ data['second_cbh'][i] = \
+ _get_value(nc.var('second_cbh'), messages[i].second_cbh)
+ data['third_cbh'][i] = \
+ _get_value(nc.var('third_cbh'), messages[i].third_cbh)
+ data['backscatter'][i][:] = array(messages[i].backscatter)
+
+ return data
+
+def _get_message_hk_data(nc, messages):
+ """
+ """
+ """Compile message data into a singal data dictionary.
+
+ @param nc:
+ @param messages: List of Messages
+
+ @return: Dictionary of ceilometer data where keys are variable names from the
+ netcdf file.
+ """
+ var_names = (
+ 'laser_pulse_energy',
+ 'laser_temperature',
+ 'receiver_sensitivity',
+ 'window_contamination',
+ 'tilt_angle',
+ 'background_light',
+ 'sum_backscatter',
+ 'tilt_angle'
+ )
+ # FIXME there is a bug with dealing with strings where pycdf complains
+ # that it cannot cast to the required type.
+ str_names = [
+ # 'status_string',
+ # 'measurement_parameters'
+ ]
+ data = {}
+ str_len = nc.dim('string_len').inq()[1]
+ data['detection_status'] = array([m.detection_status for m in messages], int32)
+ data['range'] = array(range(15, 256*30, 30)) # center of range buckets. Buckets are 30m
+ # so start at 15 and count 256 buckets.
+ for var_name in str_names:
+ data[var_name] = array(zeros((len(messages), str_len)))
+ for var_name in var_names:
+ data[var_name] = zeros(len(messages))
+
+ for i in range(len(messages)):
+ for var_name in var_names:
+ data[var_name][i] = \
+ _get_value(nc.var(var_name), getattr(messages[i], var_name))
+ for var_name in str_names:
+ s = getattr(messages[i], var_name)
+ data[var_name][i][:] = map(ord, list(s.ljust(str_len)))
+
+ return data
+
+def create(filename, lat, lon):
+ """Create a new NetCDF file.
+
+ @param filename: Name of the file
+ @param lat: Location of the instrument
+ @param lon:
+
+ @return: Initialized file with all variables added and sync'd to disk. File
+ will be in automode.
+ """
+ #
+ # TODO: eliminate the use of deprecated missing_value
+ #
+ ncml = pkg_resources.resource_string(__name__, "ceilo.ncml")
+ nc = create_nc_from_ncml(filename, ncml)
+
+ #
+ # Add the scalars
+ #
+ nc.var('lat').put(lat)
+ nc.var('lon').put(lon)
+
+ return nc
+
+def make_ceilo_files(begin, basedir=None, end=None, loc=ssec_loc, site="rig", description=""):
+ """
+ Make NetCDF files. All times are ignored and only the date
+ information is used. One file for each date is written to the
+ current directory. If basedir is None then a nc file will be created in
+ the destination directory specified by the _get_destination_dir function
+ with a '.' at the beginning. This module will not rename that file.
+
+ @type begin: datetime
+ @param begin: beginning datetime object
+ @type basedir: str
+ @param basedir: where files will be created.
+ @type end: datetime
+ @param end: datetime object
+ @type loc: tuple
+ @param loc: lat/lon of instrument at the time the data was ingested
+ """
+ if not end: end = datetime.now(begin.tzinfo)
+ assert end > begin, "Ending date must be greater than beginning date"
+ days = (end - begin).days + 1
+ created_files = []
+ _log.debug("Making files for %d days between %s and %s", days, begin, end)
+ for i in range(days):
+ dt = end - timedelta(days=i)
+ fn = get_nc_filename(dt, site=site, description=description)
+ if not basedir:
+ pth = _get_destination_dir('nc', dt)
+ fn = '.' + fn
+ else:
+ pth = path.join(basedir, str(dt.year), '%02d' % dt.month)
+ if not path.exists(pth):
+ makedirs(pth)
+ fpth = path.join(pth, fn)
+ _log.debug('Checking that file exists')
+ url = get_ascii_url(dt, site=site, description=description)
+ try:
+ urlopen(url)
+ except StandardError, e:
+ _log.warn('%s: %s', e, url)
+ continue
+ _log.debug('Creating %s', fpth)
+ cdf = create(fpth, *loc)
+ _log.debug('Filling %s', fpth)
+ fill_from_msg_files(cdf, url)
+ cdf.sync()
+ created_files.append(fpth)
+ return created_files
+
+
+def fill_from_msg_files(nc, url):
+ """File a NetCDF file from the message files given.
+
+ It is assumed that the times from the data file are in UTC.
+
+ @param nc: pycdf.CDF returned from L{create} to fill.
+ @param url: URL to a ceilometer message data file where each message
+ is proceded by an epoch time in UTC.
+ """
+ messages = load_messages(url)
+ if not messages:
+ return
+
+ base = mytime.datetime_to_epoch(messages[0].stamp)
+ var = nc.var('base_time')
+ var.units = 'seconds since 1970-01-01 00:00:00 0:00'
+ var.put(base)
+
+ # messages were sorted by stamp in parse_messages
+ times = _get_message_times(nc, messages)
+ met_data = _get_message_met_data(nc, messages)
+ hk_data = _get_message_hk_data(nc, messages)
+
+ # use middle stamp to avoid point from previous day at the beginning (if present)
+ midnight = mytime.datetime_to_epoch(mytime.day_begin(messages[len(messages)/2].stamp))
+ offsets = times - midnight # use scalar array subtraction
+ if offsets.dtype != int32:
+ offsets = array(offsets, int32)
+ var = nc.var('time')
+ var[:len(offsets)] = offsets
+ var.units = messages[len(messages)/2].stamp.strftime('seconds since %Y-%m-%d 00:00:00 0:00')
+
+ # time offsets from base_time
+ base_secs = mytime.datetime_to_epoch(mytime.day_begin(messages[0].stamp))
+ offsets = times - base_secs
+ var = nc.var('time_offset')
+ var.units = messages[0].stamp.strftime('seconds since %Y-%m-%d %H:%M:%S 0:00')
+ if offsets.dtype != int32:
+ offsets = array(offsets, int32)
+ var[:len(offsets)] = offsets
+
+ for val_dict in [met_data, hk_data]:
+ for var_name in val_dict.keys():
+ arr = val_dict[var_name]
+ var = nc.var(var_name)
+ if len(arr.shape) == 1:
+ var[:arr.shape[0]] = arr
+ else:
+ var[:arr.shape[0],:arr.shape[1]] = arr
+ nc.sync()
diff --git a/AossCeilo/tidy.py b/AossCeilo/tidy.py
new file mode 100644
index 0000000..95035eb
--- /dev/null
+++ b/AossCeilo/tidy.py
@@ -0,0 +1,270 @@
+#!/usr/bin/env python
+# encoding: utf-8
+"""
+tidy.py
+
+Routines to handle ceilometer files on tahiti on a regular basis
+No URL or opendap paths should be used, this only does local file manipulation
+However, calls to external product creation may not do remote file calls,
+such as getting data files from an OpenDap url.
+
+Environment variables:
+
+CEILO_INCOMING_DIR
+CEILO_RAW_DIR
+CEILO_CACHE_DIR
+CEILO_LATEST_DIR
+
+CEILO_DIR_FORMAT=%Y/%m/%d
+
+Created by davidh on 2009-10-08.
+Copyright (c) 2009 University of Wisconsin SSEC. All rights reserved.
+"""
+
+import os, sys, logging, shutil
+from subprocess import check_call as sh
+from datetime import datetime, timedelta
+from metobs.ceilo import quicklook, nc
+from metobs.ceilo import CONFIG as c
+from metobs.util import raw_manager
+rel = raw_manager.relativedir
+import re
+
+RE_DIGITS = re.compile(r'\d+')
+LOG = logging.getLogger(__name__)
+site = "rig"
+description=""
+
+
+CEILO_INCOMING_DIR = c.CEILO_INCOMING_DIR
+CEILO_PRAW_DIR = c.CEILO_PRAW_DIR
+CEILO_CACHE_DIR = c.CEILO_CACHE_DIR
+CEILO_LATEST_DIR = c.CEILO_LATEST_DIR
+CEILO_DIR_FORMAT = c.CEILO_DIR_FORMAT
+
+def create_quicklook(when=None):
+ """run quicklook.py with the proper arguments to create various quicklooks."""
+ when = when or datetime.now()
+ created_files = quicklook.make_plot(dt=when, site=site, description=description)
+ if len(created_files) != 4:
+ LOG.error("Expected four quicklooks to be created, latest files were not linked, %d filenames were returned" % len(created_files))
+ raise ValueError("Latest quicklooks could not be linked because there were not the correct amount of images")
+ ptypes = [ c._handle_plot_type(t) for t in range(1, 2) ]
+ for file,ptype,tag in zip(created_files[1::2], ptypes+ptypes, ["","tn"]):
+ link_latest_quicklooks(c.get_latest_dir(), file, ptype, tag=tag)
+
+def link_latest_quicklooks(latest_dir, filename, ptype, tag=""):
+ _,ext = os.path.splitext(filename)
+ tag = tag and "_" + tag or ""
+ ptype = ptype and "_" + ptype or ""
+ linkname = "latest_quicklook%s%s%s" % (ptype,tag,ext)
+ tmpname = "." + linkname
+ tmppath = os.path.join( latest_dir, tmpname )
+ linkpath = os.path.join( latest_dir, linkname )
+ if os.path.islink(tmppath): os.unlink(tmppath)
+ LOG.debug('symlink %s -> %s' % (linkpath, filename))
+ os.symlink( rel(latest_dir, filename), tmppath )
+ os.rename( tmppath, linkpath )
+
+def create_nc(when=None):
+ """run external nc_gen module with proper arguments to create a new netCDF
+ file.
+ """
+ when = when or datetime.now()
+ # Run for past 3 days
+ begin = when - timedelta(days=2)
+ # Create temp nc files in cache location
+ temp_created_files = nc.make_ceilo_files(begin=begin, end=when, basedir=None, site=site, description=description)
+ # Check that some files were created
+ if not temp_created_files:
+ LOG.warning("No new nc files were created")
+ return
+ # Rename temp files to original files
+ created_files = [ os.path.join(d,f[1:]) for d,f in [ os.path.split(x) for x in temp_created_files ] ]
+ for t,f in zip(temp_created_files, created_files):
+ if os.path.exists(f): os.remove(f)
+ os.rename(t,f)
+ # Link latest files
+ link_latest_file(c.get_latest_dir(), created_files[0], data_type="nc")
+
+def file_dirs(when = None, data_type='ascii'):
+ """ yield camera-name, incoming-dir, raw_dir, cache_dir, latest_dir for a given datetime object (default now)
+ """
+ when = when or datetime.now()
+ if not(os.path.isabs(CEILO_INCOMING_DIR) or os.path.isabs(CEILO_PRAW_DIR) or \
+ os.path.isabs(CEILO_CACHE_DIR) or os.path.isabs(CEILO_LATEST_DIR)):
+ LOG.warning("Directories should be absolute paths")
+ return ( c.get_incoming_dir(),
+ c.get_praw_dir(when),
+ c.get_cache_dir(data_type, when),
+ c.get_latest_dir()
+ )
+
+def _keyed_filename(f):
+ return tuple(int(x) for x in RE_DIGITS.findall(f)), f
+
+def pending_incoming_files(incoming_dir):
+ "return list of ascii files remaining in a given incoming directory, sorted latest-first"
+ files = [ _keyed_filename(f)
+ for f in os.listdir(incoming_dir)
+ if "ascii" in f
+ ]
+ return [ filename for _,filename in reversed(sorted(files)) ]
+
+def link_latest_file(latest_dir, filename, data_type='ascii'):
+ """link latest data_type files to latest_ascii.ascii, overwriting existing links
+ filename must be a absolute or relative path, not just the name of a file.
+ """
+ _,ext = os.path.splitext(filename)
+ linkname = 'latest_%s%s' % (data_type, ext)
+ tmpname = '.' + linkname
+ tmppath = os.path.join( latest_dir, tmpname )
+ linkpath = os.path.join( latest_dir, linkname )
+ if os.path.islink(tmppath): os.unlink(tmppath)
+ LOG.debug('symlink %s -> %s' % (linkpath, filename))
+ os.symlink( rel(latest_dir, filename), tmppath )
+ os.rename( tmppath, linkpath )
+
+def link_latest_directory( source, latest_dir ):
+ tmpname = os.path.join(latest_dir, ".latest_dir")
+ linkname = os.path.join(latest_dir, "latest_dir")
+ if os.path.islink(tmpname): os.unlink(tmpname)
+ LOG.debug('softlinking latest directory %s -> %s' % (linkname, source ))
+ os.symlink( rel(latest_dir, source), tmpname)
+ os.rename(tmpname, linkname)
+
+def unload_incoming(incoming_dir, praw_dir, cache_dir, latest_dir):
+ """handle new images in incoming:
+ check for/create raw, cache, and latest directories
+ copy originals to raw directory
+ move originals to cache directory
+ create multiple scaled images
+ update latest/ directory link
+ update latest_w_h.jpg image links
+ """
+ if not os.path.exists(incoming_dir):
+ LOG.warning("No incoming directory at: '%s'" % (incoming_dir))
+ raise IOError
+ if not os.path.exists(praw_dir):
+ LOG.debug("Creating raw directory: '%s'" % praw_dir)
+ os.makedirs(praw_dir)
+ if not os.path.exists(cache_dir):
+ LOG.debug("Creating cache directory: '%s'" % cache_dir)
+ os.makedirs(cache_dir)
+ if not os.path.exists(latest_dir):
+ LOG.debug("Creating latest directory: '%s'" % latest_dir)
+ os.makedirs(latest_dir)
+
+ new_files = pending_incoming_files(incoming_dir)
+ if not new_files:
+ LOG.warning("no files found in %s" % incoming_dir)
+ return
+
+ raw_changes = [ c.rename_incoming(fn, site=site, description=description) for fn in new_files ]
+ (praw_dirs, cache_dirs, renames, removes) = [ list(x) for x in zip(*raw_changes) ]
+ raw_manager.daily_manage_raw(incoming_dir, praw_dirs, None, cache_dirs, new_files, renamed=renames, remove=removes)
+
+ link_latest_file( latest_dir, os.path.join(cache_dir, renames[0]), data_type='ascii' )
+ link_latest_directory( cache_dir, latest_dir )
+
+
+def unload_incoming_all(when=None):
+ nfo = file_dirs(when)
+ try:
+ unload_incoming(*nfo)
+ except IOError:
+ pass
+
+
+
+def main():
+ import optparse
+ usage = """
+%prog [options]
+run "%prog help" to list commands
+"""
+ parser = optparse.OptionParser(usage)
+ parser.add_option('-t', '--test', dest="self_test",
+ action="store_true", default=False, help="run unit tests")
+ parser.add_option('-q', '--quiet', dest="quiet",
+ action="store_true", default=False, help="only error output")
+ parser.add_option('-v', '--verbose', dest="verbose",
+ action="store_true", default=False, help="enable more informational output")
+ parser.add_option('-w', '--debug', dest="debug",
+ action="store_true", default=False, help="enable debug output")
+ parser.add_option('--date', dest="date", default=None,
+ help="specify date to use in specified command, MM/DD/YYYY")
+ parser.add_option('--site', dest='site', default="rig",
+ help="used in product filename, see metobs.util for details")
+ parser.add_option('--description', dest='description', default='',
+ help="used in product filename, see metobs.util for details")
+ options, args = parser.parse_args()
+ if options.self_test:
+ import doctest
+ doctest.testmod()
+ sys.exit(2)
+
+ lvl = logging.WARNING
+ if options.debug: lvl = logging.DEBUG
+ elif options.verbose: lvl = logging.INFO
+ elif options.quiet: lvl = logging.ERROR
+ logging.basicConfig(level = lvl)
+ date = options.date
+ globals()['site'] = options.site
+ globals()['description'] = options.description
+
+ if date:
+ date = datetime.strptime(date, "%m/%d/%Y")
+
+ commands = {}
+ prior = None
+ prior = dict(locals())
+
+ def incoming(*args):
+ """handle incoming images and directories
+ Does standard image size conversions, moves data to raw, copies data to cache, sets up latest links.
+ """
+ unload_incoming_all(when=date)
+
+ def quicklook(*args):
+ """Create set of quicklooks for date specified or today.
+ """
+ create_quicklook(when=date)
+
+ def nc(*args):
+ """Create multiple nc files for (date - 2 days) to date.
+ """
+ create_nc(date)
+
+ def help(command=None):
+ """print command help or list of commands
+ e.g. help help
+ """
+ if command is None:
+ # print first line of docstring
+ for cmd in commands:
+ ds = commands[cmd].__doc__.split('\n')[0]
+ print "%-16s %s" % (cmd,ds)
+ else:
+ print commands[command].__doc__
+
+ def test():
+ "run tests"
+ #test1()
+ raise NotImplementedError("No Test")
+
+ commands.update(dict(x for x in locals().items() if x[0] not in prior))
+
+ if (not args) or (args[0] not in commands):
+ parser.print_help()
+ help()
+ return 9
+ else:
+ locals()[args[0]](*args[1:])
+
+ return 0
+
+
+if __name__=='__main__':
+ sys.exit(main())
+
diff --git a/README.rst b/README.rst
index 84cf08f..b39f6c5 100644
--- a/README.rst
+++ b/README.rst
@@ -4,3 +4,6 @@ AOSS Ceilometer
Bash and python scripts for managing the AOSS Ceilometer's data ingest
and higher level product generation.
+NOTE: Most of the code in this repository was copied from the old subversion
+repository. This code was executed on python 2.6/2.7 environments, but will
+be run from python 3.6 from now on. Some scripts may not work out of the box.
diff --git a/setup.py b/setup.py
new file mode 100644
index 0000000..d73a908
--- /dev/null
+++ b/setup.py
@@ -0,0 +1,16 @@
+from setuptools import setup, find_packages
+
+setup(
+ name='AossCeilo',
+ version='0.1',
+ description='UW AOSS Ceilometer',
+ url='http://metobs.ssec.wisc.edu',
+ install_requires=[
+ 'numpy',
+ 'pyserial',
+ 'metobscommon',
+ ],
+ dependency_links=['http://larch.ssec.wisc.edu/cgi-bin/repos.cgi'],
+ packages=find_packages(exclude=['aossceilo.tests']),
+ include_package_data=True,
+)
--
GitLab