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129 lines
4.3 KiB
129 lines
4.3 KiB
import files
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import color
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from paper import Paper
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ALPHABET = 'abcdefghijklmopqrstuvwxyz'
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class Repository(object):
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def __init__(self, paperdir=None):
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if paperdir:
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self.paperdir = paperdir
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else:
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self.paperdir = files.find_papersdir()
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self.papers_config = files.load_papers()
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self.citekeys = self.papers_config['citekeys']
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# loading existing papers
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def paper_from_number(self, number, fatal = True):
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try:
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citekey = self.citekeys[int(number)]
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paper = self.paper_from_citekey(citekey)
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return paper
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except KeyError:
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if fatal:
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print('{}error{}: no paper with number {}{}{}'.format(
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color.error, color.normal, color.citekey, citekey, color.end))
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exit(-1)
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raise IOError, 'file not found'
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def paper_from_citekey(self, citekey, fatal=True):
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"""Load a paper by its citekey from disk, if necessary."""
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try:
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return Paper.load(citekey)
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except KeyError:
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if fatal:
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print('{}error{}: no paper with citekey {}{}{}'.format(
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color.error, color.normal, color.citekey, citekey, color.end))
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exit(-1)
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raise IOError, 'file not found'
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def paper_from_any(self, key, fatal = True):
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try:
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return self.paper_from_citekey(key, fatal = False)
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except IOError:
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try:
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return self.paper_from_number(key, fatal = False)
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except IOError:
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if fatal:
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print('{}error{}: paper with citekey or number {}{}{} not found{}'.format(
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color.error, color.normal, color.citekey, key, color.normal, color.end))
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exit(-1)
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raise IOError, 'file not found'
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# creating new papers
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def add_paper_from_paths(self, pdfpath, bibpath):
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p = Paper.from_bibpdffiles(pdfpath, bibpath)
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self.add_paper(p)
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def add_paper(self, p):
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# updating papersconfig
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bib_data_entry = p.bib_data.entries[list(p.bib_data.entries.keys())[0]]
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p.citekey = self.get_valid_citekey(bib_data_entry)
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self.papers_config['citekeys'].append(p.citekey)
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self.citekeys.append(p.citekey)
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# writing all to disk
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# TODO Update by giving filename (17/12/2012)
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p.save_to_disc()
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files.save_papers(self.papers_config)
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print "Added: %s" % p.citekey
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return p
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def add_papers(self, bibpath):
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bib_data = Paper.import_bibdata(bibpath)
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for k in bib_data.entries:
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sub_bib = type(bib_data)(preamble=bib_data._preamble)
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sub_bib.add_entry(k, bib_data.entries[k])
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meta = Paper.create_meta(pdfpath=None)
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name = meta['filename']
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p = Paper(name, bib_data = sub_bib, metadata = meta)
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self.add_paper(p)
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def get_valid_citekey(self, entry):
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citekey = str2citekey(entry.key)
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if citekey in self.citekeys:
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raise(ValueError, "An entry with same citekey already exists.")
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if len(citekey) == 0:
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citekey = self.create_citekey(entry)
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return citekey
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def create_citekey(self, entry, allowed = tuple()):
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"""Create a cite key unique to a given bib_data.
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Raises:
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KeyError if no author is defined.
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"""
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author_key = 'author'
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if not 'author' in entry.persons:
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author_key = 'editor'
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try:
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first_author = entry.persons[author_key][0]
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except KeyError:
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raise(ValueError,
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'No author or editor defined: cannot generate a citekey.')
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try:
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year = entry.fields['year']
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except KeyError:
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year = ''
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prefix = u'{}{}'.format(first_author.last()[0][:6], year)
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prefix = str2citekey(prefix)
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# Normalize chars and remove non-ascii
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prefix = unicodedata.normalize('NFKD', prefix
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).encode('ascii', 'ignore')
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letter = 0
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citekey = prefix
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while citekey in self.citekeys and citekey not in allowed:
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citekey = prefix + ALPHABET[letter]
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letter += 1
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return citekey
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def size(self):
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return len(self.citekeys)
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