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cal2html.py
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cal2html.py
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import re, markdown, dateutil, json
from datetime import timedelta, datetime
TEXTBOOKS = {
'MCS': 'files/mcs.pdf',
u'\u2200x': 'files/forallx.pdf'
}
def yamlfile(f):
from yaml import load
try:
from yaml import CLoader as Loader
except ImportError:
from yaml import Loader
if type(f) is str:
with open(f) as stream:
data = load(stream, Loader=Loader)
else:
data = load(f, Loader=Loader)
return data
def dow(n):
"""string to int, with datetime's default 0=monday weekday numbering"""
if type(n) is int: return n
n = n.lower()
if n.startswith('mo') or n == 'm': return 0
if n.startswith('tu') or n == 't': return 1
if n.startswith('we') or n == 'w': return 2
if n.startswith('th') or n == 'h': return 3
if n.startswith('fr') or n == 'f': return 4
if n.startswith('sa') or n == 's': return 5
if n.startswith('su') or n == 'u': return 6
raise Exception("Unknown weekday: "+str(n))
def raw2cal(data, links):
"""Given the data from a cal.yaml, return a list of weeks,
where each week is a list of seven days,
where each day is either None or {"date":datetime.date, "events":[...]}
An event is a title, kind, and some kind of day info:
- from, to
- day = all-day
- date = one copy per section
Location and office hours removed for now
Section data not placed in ics
"""
s = data['Special Dates']['Courses begin']
beg = s
e = data['Special Dates']['Courses end']
end = e
while s.weekday() != 6: s -= timedelta(1)
e = max(e, data['meta']['final']['start'].date())
data['meta']['days'] = [dow(dows) for dows in data['meta']['days']]
data['sidx'] = 0
def onday(d):
dt = datetime.fromordinal(d.toordinal())
isexam = False
ans = []
# handle metadata
if d == data['meta']['final']['start'].date():
final = data['meta']['final']
ans.append({
"title":"Final Exam",
"kind":"exam",
"from":final['start'],
"to":final['start'] + timedelta(0,60*final['duration']),
})
for k,v in data['Special Dates'].items():
if (v['start'] > d or v['end'] < d) if type(v) is dict else d not in v if type(v) is list else v != d:
continue # does not apply
if 'recess' in k or 'Reading' in k or 'break' in k:
return ans # no classes
if 'exam' in k.lower() or 'test' in k.lower() or 'midterm' in k.lower():
isexam = True
else:
ans.append({
"title":k,
"kind":"special",
"day":d
})
if d >= beg and d <= end:
if d.weekday() in data['meta']['days']:
# handle main calendar
if isexam:
ans.append({
'title':'Exam',
"kind":'exam',
"date":dt,
})
elif len(data['lectures']) <= data['sidx']:
ans.append({
'title':'Lecture',
"kind":'lecture',
"date":dt,
})
else:
ans.append({
'title':data['lectures'][data['sidx']] or '',
"kind":'lecture',
"date":dt,
})
for subtitle in (ans[-1]['title'] if type(ans[-1]['title']) is list else [ans[-1]['title']]):
if subtitle in data['reading']:
tmp = data['reading'][subtitle]
if type(tmp) is not list: tmp = [tmp]
for (i, reading) in enumerate(tmp):
if type(reading) == str:
for name, link in TEXTBOOKS.items():
if name in reading:
tmp[i] = {'txt': reading, 'lnk': link}
if 'reading' in ans[-1]:
ans[-1]['reading'].extend(tmp)
else:
ans[-1]['reading'] = tmp[:]
data['sidx'] += 1
# handle links files
for section, notes in links.items():
if d in notes:
ans.append({
'title':section,
'kind':'notes',
'date':dt,
})
for f in notes[d].get('files',[]):
n = os.path.basename(f)
n = n[n.find('-')+1:]
ans[-1].setdefault('reading',[]).append({'txt':n,'lnk':f})
if 'video' in notes[d]: ans[-1]['video'] = notes[d]['video']
if 'audio' in notes[d]: ans[-1]['audio'] = notes[d]['audio']
# handle assignments
for task,ent in data['assignments'].items():
if task[0] == '.': continue
if 'due' not in ent: continue
if ent['due'].date() != d: continue
group = ent.get('group', re.match('^[A-Za-z]*',task).group(0))
tmp = dict(data['assignments'].get('.groups',{}).get(group,{}))
tmp.update(ent)
ent = tmp
ans.append({
'title':ent.get('title', task),
'kind':'assignment',
'group':group,
'from':ent['due']-timedelta(0,900),
'to':ent['due'],
'slug':task,
})
if 'hide' in ent: ans[-1]['hide'] = ent['hide']
if 'link' in ent: ans[-1]['link'] = ent['link']
return ans
ans = []
while s <= e:
if s.weekday() == 6: ans.append([])
events = onday(s)
if len(events):
ans[-1].append({'date':s,'events':events})
else:
ans[-1].append(None)
s += timedelta(1)
return ans
def cal2html(cal):
"""Uses divs only, with no week-level divs"""
ans = ['<div id="schedule" class="calendar">']
ldat = None
for week in cal:
newweek = True
for day in week:
if day is not None and not all(_.get('kind') == 'oh' for _ in day['events']):
ldat = day['date']
ans.append('<div class="day {}" date="{}">'.format(day['date'].strftime('%a') + (' newweek' if newweek else ''), day['date'].strftime('%Y-%m-%d')))
newweek = False
ans.append('<span class="date w{1}">{0}</span>'.format(day['date'].strftime('%d %b').strip('0'), day['date'].strftime('%w')))
ans.append('<div class="events">')
for e in day['events']:
if e.get('kind') == 'oh': continue
if e.get('hide'): continue
classes = [e[k] for k in ('section','kind','group') if k in e]
title = e.get('title','TBA')
if type(title) is list: title = ' <small>and</small> '.join(title)
more = []
if 'link' in e:
title = '<a target="_blank" href="{}">{}</a>'.format(e['link'], title)
for media in ('video', 'audio'):
if media in e:
more.append('<a target="_blank" href="{}">{}{}</a>'.format(
e[media],
media,
e[media][e[media].rfind('.'):]
))
for reading in e.get('reading',[]):
if type(reading) is str:
more.append(reading)
else:
more.append('<a target="_blank" href="{}">{}</a>'.format(reading['lnk'], reading['txt']))
if more:
ans.append('<details class="{}">'.format(' '.join(classes)))
ans.append('<summary>{}</summary>'.format(title))
ans.append(' <small>and</small> '.join(more))
ans.append('</details>')
else:
ans.append('<div class="{}">{}</div>'.format(' '.join(classes), title))
ans.append('</div>')
ans.append('</div>')
elif day is None and ldat is not None:
ldat += timedelta(1)
ans.append('<div class="empty day {}" date="{}"></div>'.format(ldat.strftime('%a') + (' newweek' if newweek else ''), ldat.strftime('%Y-%m-%d')))
newweek = False
ans.append('</div>')
external = '<svg xmlns="http://www.w3.org/2000/svg" width="1em" height="1em"><path fill="#fff" stroke="#36c" d="M1.5 4.518h5.982V10.5H1.5z"/><path fill="#36c" d="M5.765 1H11v5.39L9.427 7.937l-1.31-1.31L5.393 9.35l-2.69-2.688 2.81-2.808L4.2 2.544z"/><path fill="#fff" d="M9.995 2.004l.022 4.885L8.2 5.07 5.32 7.95 4.09 6.723l2.882-2.88-1.85-1.852z"/></svg>'
return re.sub(r'(<a[^>]*href="[^"]*//[^"]*"[^<]*)</a>', r'\1'+external+'</a>', '\n'.join(ans))
def cal2fullcal(cal, keep=lambda x:True):
"""see https://fullcalendar.io/docs/event-object"""
ans = []
for week in cal:
for day in week:
if day is not None:
for event in day['events']:
if event.get('hide'): continue
if keep(event):
ans.append({
'id':'evt'+str(len(ans)),
'start':event['from'].strftime('%Y-%m-%dT%H:%M:%S'),
'end':event['to'].strftime('%Y-%m-%dT%H:%M:%S'),
'title':event['title'],
'classNames':['cal-'+event['kind']],
'editable':False,
# 'location':event['where'],
})
if 'link' in event: ans[-1]['url'] = event['link']
ans.sort(key=lambda x:x['start'])
return ans
def cal2ical(cal, course, home, tz=None, sections=None):
if tz is None: tz = 'America/New_York'
now = datetime.utcnow().strftime('%Y%m%dT%H%M%S')
ans = ['''BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//University of Virginia//{0}//EN
CALSCALE:GREGORIAN
NAME:{0}'''.format(course)]
def icescape(s):
s = s.replace('"', '').replace(':', '')
s = s.replace('\\', '\\\\')
s = s.replace('\n', '\\n')
s = s.replace(r',', r'\,')
s = s.replace(r',', r'\;')
return s
def fixlinks(l):
for i in range(len(l)):
l[i] = l[i].replace('<//','<https://')
l[i] = re.sub(r'<([^><:]*)>', r'<{}\1>'.format(home.replace('\\','\\\\')), l[i])
def encode(event):
details = []
if 'link' in event: details.append('see <' + event.get('link')+'>')
if 'details' in event: details.append(event.get('details'))
if 'reading' in event:
for r in event['reading']:
if type(r) is str: details.append(r)
else: details.append('{txt} <{lnk}>'.format(**r))
for media in ('video', 'audio'):
if media in event:
details.append('{}: <{}>'.format(media, event[media]))
title = event.get('title','TBA')
if type(title) is list: title = ' and '.join(title)
if 'group' in event and event['group'] not in title:
title = event['group']+' '+title
if 'day' in event:
dts = [':{}'.format(event['day'].strftime('%Y%m%d'))]
dte = [':{}'.format((event['day'] + timedelta(1)).strftime('%Y%m%d'))]
elif 'from' in event and 'to' in event:
dts = [';TZID={}:{}'.format(tz, event['from'].strftime('%Y%m%dT%H%M%S'))]
dte = [';TZID={}:{}'.format(tz, event['to'].strftime('%Y%m%dT%H%M%S'))]
elif 'date' in event:
dts = [';TZID={}:{}'.format(tz, (event['date']+timedelta(0,sec['start'])).strftime('%Y%m%dT%H%M%S')) for sec in sections.values()]
dte = [';TZID={}:{}'.format(tz, (event['date']+timedelta(0,sec['start']+sec['duration']*60)).strftime('%Y%m%dT%H%M%S')) for sec in sections.values()]
title = [sec+' -- ' + title for sec in sections.keys()]
else:
raise Exception("Event without time: "+str(event))
if type(title) is not list: title = [title]
fixlinks(details)
return ''.join('''BEGIN:VEVENT
SUMMARY:{title}
DESCRIPTION:{notes}{location}
DTSTART{dts}
DTEND{dte}
DTSTAMP:{now}Z
UID:{uid}@{course}.cs.virginia.edu
END:VEVENT'''.format(
title=title[i], dts=dts[i], dte=dte[i], course=course, now=now,
notes=icescape('\n'.join(details)),
location='' if 'where' not in event else '\nLOCATION:{}'.format(event['where']),
uid='{}-{}'.format(dts[i],title[i]),
) for i in range(len(dts)))
for week in cal:
for day in week:
if day:
for event in day['events']:
if event.get('hide'): continue
if 'section' in event and sections and event['section'] not in sections: continue
ans.append(encode(event))
ans.append('END:VCALENDAR\r\n')
return '\r\n'.join(_.replace('\n','\r\n') for _ in ans)
def slug2asgn(slug, group, raw):
ans = {}
ans.update(raw['assignments'].get('.groups').get(group,{}))
ans.update(raw['assignments'][slug])
return ans
def cal2assigments(cal,raw):
ans = {}
for week in cal:
for day in week:
if day is not None:
for event in day['events']:
if event.get('kind') == 'assignment':
s = event['slug']
g = event['group']
dat = slug2asgn(s,g,raw)
dat['group'] = g
ans[s] = dict(**dat)
return ans
def coursegrade_json(data):
groups = data['assignments'].get('.groups', {})
weights, drops, inc, exc, excuse = {}, {}, {}, {}, {}
for k,v in groups.items():
if 'portion' in v:
weights[k] = v['portion']
else:
weights[k] = 0
if type(weights[k]) is str:
try:
weights[k] = eval(weights[k].replace('%','/100'))
except: pass
if 'drop' in v:
drops[k] = v['drop']
if 'include' in v:
inc[k] = v['include']
if 'exclude' in v:
exc[k] = v['exclude']
if 'excuse' in v:
excuse[k] = v['excuse']
for k,v in drops.items():
if type(v) is str:
v = eval(v.replace('%','/100'))
if v < 1:
cnt = 0
for k,v in assignments_json(data).items():
if v.get('group','') == k: cnt += 1
v *= cnt
drops[k] = int(round(v))
return {'letters':[
# {'A+':0.98},
{'A' :0.93},
{'A-':0.90},
{'B+':0.86},
{'B' :0.83},
{'B-':0.80},
{'C+':0.76},
{'C' :0.73},
{'C-':0.70},
{'D+':0.66},
{'D' :0.63},
{'D-':0.60},
{'F' :0.00},
],'weights':weights,'drops':drops,'includes':inc,'excludes':exc, 'excuse':excuse}
if __name__ == '__main__':
import os, os.path, glob
here = os.path.realpath(os.path.dirname(__file__))
os.chdir(here)
course = os.path.basename(here)
import json, sys, yaml
raw = yamlfile('cal.yaml')
links = {fn[:-11]:yamlfile(fn) for fn in glob.glob('*links.yaml')}
cal = raw2cal(raw, links)
with open('schedule.html', 'w') as fh:
fh.write(cal2html(cal))
with open('markdown/cal.ics', 'w') as fh:
fh.write(cal2ical(cal, course, raw['meta']['home'], tz=raw['meta']['timezone'], sections=raw['sections']))
import pjson
with open('assignments.json', 'w') as fh:
print(pjson.prettyjson(cal2assigments(cal, raw)), file=fh)
with open('coursegrade.json', 'w') as f:
f.write(pjson.prettyjson(coursegrade_json(raw), maxinline=16))