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'''This module contains some limited support for reading esorex SOF and
configuration files.
Esorex is a standard execution environment for CPL recipes provided by
ESO. See http://www.eso.org/sci/software/cpl/esorex.html for
details.
'''
import os
import cpl
def load_sof(source):
'''Read an esorex sof file.
:param source: SOF file object or string with sof file content.
:type source: :class:`str` or :class:`file`
These files contain the raw and calibration files for a recipe. The
content of the file is returned as a map with the tag as key and the list
of file names as value.
The result of this function may directly set as :attr:`Recipe.calib`
attribute::
import cpl
myrecipe = cpl.Recipe('muse_bias')
myrecipe.calib = cpl.esorex.read_sof(file('muse_bias.sof'))
.. note:: The raw data frame is silently ignored wenn setting
:attr:`Recipe.calib` for MUSE recipes. Other recipes ignore ths raw data
frame only if it was set manually as :attr:`Recipe.tag` or in
:attr:`Recipe.tags` since there is no way to automatically distinguish
between them.
'''
if isinstance(source, str):
return load_sof(file(source) if os.path.exists(source) else source.split('\n'))
elif isinstance(source, (file, list)):
res = dict()
for line in source:
if not line or line.startswith('#'):
continue
ls = line.split()
fn = ls[0]
key = ls[1]
if key not in res:
res[key] = fn
elif isinstance(res[key], list):
res[key].append(fn)
else:
res[key] = [ res[key], fn ]
return res
else:
raise ValueError('Cannot assign type %s to framelist' %
source.__class__.__name__)
def load_rc(source = None):
'''Read an esorex configuration file.
:param source: Configuration file object, or string with file content.
If not set, the esorex config file
:file:`~/.esorex/esorex.rc` is used.
:type source: :class:`str` or :class:`file`
These files contain configuration parameters for esorex or recipes. The
content of the file is returned as a map with the (full) parameter name as
key and its setting as string value.
The result of this function may directly set as :attr:`Recipe.param`
attribute::
import cpl
myrecipe = cpl.Recipe('muse_bias')
myrecipe.param = cpl.esorex.load_rc('muse_bias.rc')
.. note:: Unknown parameters are silently ignored wenn setting
:attr:`Recipe.param`.
'''
if source is None:
source = file(os.path.expanduser('~/.esorex/esorex.rc'))
if isinstance(source, str):
return load_rc(file(source) if os.path.exists(source) else source.split('\n'))
elif isinstance(source, (file, list)):
res = dict()
for line in source:
if not line or not line.strip() or line.startswith('#'):
continue
name = line.split('=', 1)[0]
value = line.split('=', 1)[1]
if name and value:
res[name.strip()] = value.strip()
return res
else:
raise ValueError('Cannot assign type %s to parameter list' %
source.__class__.__name__)
def init(source = None):
'''Set the message verbosity and recipe search path from the
:file:`esorex.rc` file.
:param source: Configuration file object, or string with file content.
If not set, the esorex config file :file:`~/.esorex/esorex.rc` is used.
:type source: :class:`str` or :class:`file`
'''
rc = cpl.esorex.load_rc(source)
if rc.has_key('esorex.caller.recipe-dir'):
cpl.Recipe.path = rc['esorex.caller.recipe-dir'].split(':')
if rc.has_key('esorex.caller.msg-level'):
cpl.msg.level = cpl.log.level[rc['esorex.caller.msg-level'].upper()]
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