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1 # -*- coding: utf-8 -*-
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2
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3 from galaxy.datatypes.json import Json
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4 from galaxy.datatypes.data import get_file_peek
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5 import subprocess
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6 import tempfile
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7 import json
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8 import os
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9
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10 class Ipynb( Text ):
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11 file_ext = "ipynb"
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12
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13 def set_peek( self, dataset, is_multi_byte=False ):
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14 if not dataset.dataset.purged:
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15 dataset.peek = get_file_peek( dataset.file_name, is_multi_byte=is_multi_byte )
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16 dataset.blurb = "IPython Notebook"
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17 else:
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18 dataset.peek = 'file does not exist'
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19 dataset.blurb = 'file purged from disc'
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20
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21 def sniff( self, filename ):
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22 """
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23 Try to load the string with the json module. If successful it's a json file.
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24 """
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25 try:
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26 json.load( filename )
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27 if a.get('nbformat', False) != False and a.get('metadata', False):
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28 return True
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29 else:
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30 return False
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31 except:
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32 return False
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33
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34 def display_data(self, trans, dataset, preview=False, filename=None, to_ext=None, chunk=None, **kwd):
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35 preview = util.string_as_bool( preview )
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36 if chunk:
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37 return self.get_chunk(trans, dataset, chunk)
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38 elif to_ext or not preview:
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39 return self._serve_raw(trans, dataset, to_ext)
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40 else:
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41 ofile_handle = tempfile.NamedTemporaryFile(delete=False)
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42 ofilename = file_handle.name
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43 ofile_handle.close()
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44 try:
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45 cmd = 'ipython nbconvert --to html --template basic %s %s' % (dataset.file_name, ofilename)
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46 subprocess.call(cmd)
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47 ofilename = '%s.html' % ofilename
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48 except:
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49 ofilename = dataset.file_name
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50 log.exception( 'Command "%s" failed. Could not convert the IPython Notebook to HTML, defaulting to plain text.' % cmd )
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51 return open( ofilename )
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52 """return trans.fill_template( "/dataset/tabular_chunked.mako",
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53 dataset = dataset,
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54 chunk = self.get_chunk(trans, dataset, 0),
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55 column_number = column_number,
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56 column_names = column_names,
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57 column_types = column_types )"""
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58
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59 def set_meta( self, dataset, **kwd ):
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60 """
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61 Set the number of models in dataset.
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62 """
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63 pass
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64
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65
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