def diff_app(request):
# XXX TODO: error handling
if 'repo' not in request.GET:
raise Http404("repo must be supplied")
reponame = request.GET['repo']
repopath = settings.REPOSITORY_BASE + '/' + reponame
repo_url = Repository.objects.filter(name=reponame).values_list('url', flat=True)[0]
from mercurial.ui import ui as _ui
from mercurial.hg import repository
ui = _ui()
repo = repository(ui, repopath)
ctx1 = repo.changectx(request.GET['from'])
ctx2 = repo.changectx(request.GET['to'])
match = None # maybe get something from l10n.ini and cmdutil
changed, added, removed = repo.status(ctx1, ctx2, match=match)[:3]
paths = ([(f, 'changed') for f in changed]
+ [(f, 'removed') for f in removed]
+ [(f, 'added') for f in added])
diffs = DataTree(dict)
for path, action in paths:
lines = []
try:
p = getParser(path)
except UserWarning:
diffs[path].update({'path': path,
'isFile': True,
'rev': ((action == 'removed') and request.GET['from']
or request.GET['to']),
'class': action})
continue
if action == 'added':
a_entities = []
a_map = {}
else:
data = ctx1.filectx(path).data()
data = _universal_newlines(data)
try:
p.readContents(data)
a_entities, a_map = p.parse()
except:
diffs[path].update({'path': path,
'isFile': True,
'rev': ((action == 'removed') and request.GET['from']
or request.GET['to']),
'class': action})
continue
if action == 'removed':
c_entities = []
c_map = {}
else:
data = ctx2.filectx(path).data()
data = _universal_newlines(data)
try:
p.readContents(data)
c_entities, c_map = p.parse()
except:
diffs[path].update({'path': path,
'isFile': True,
'rev': ((action == 'removed') and request.GET['from']
or request.GET['to']),
'class': action})
continue
a_list = sorted(a_map.keys())
c_list = sorted(c_map.keys())
ar = AddRemove()
ar.set_left(a_list)
ar.set_right(c_list)
for action, item_or_pair in ar:
if action == 'delete':
lines.append({'class': 'removed',
'oldval': [{'value':a_entities[a_map[item_or_pair]].val}],
'newval': '',
'entity': item_or_pair})
elif action == 'add':
lines.append({'class': 'added',
'oldval': '',
'newval':[{'value': c_entities[c_map[item_or_pair]].val}],
'entity': item_or_pair})
else:
oldval = a_entities[a_map[item_or_pair[0]]].val
newval = c_entities[c_map[item_or_pair[1]]].val
if oldval == newval:
continue
sm = SequenceMatcher(None, oldval, newval)
oldhtml = []
newhtml = []
for op, o1, o2, n1, n2 in sm.get_opcodes():
if o1 != o2:
oldhtml.append({'class':op, 'value':oldval[o1:o2]})
if n1 != n2:
newhtml.append({'class':op, 'value':newval[n1:n2]})
lines.append({'class':'changed',
'oldval': oldhtml,
'newval': newhtml,
'entity': item_or_pair[0]})
container_class = lines and 'file' or 'empty-diff'
diffs[path].update({'path': path,
'class': container_class,
'lines': lines})
diffs = diffs.toJSON().get('children', [])
return render_to_response('shipping/diff.html',
{'given_title': request.GET.get('title', None),
'repo': reponame,
'repo_url': repo_url,
'old_rev': request.GET['from'],
'new_rev': request.GET['to'],
'diffs': diffs},
context_instance=RequestContext(request))
def diffLines(self, path, action):
lines = []
try:
p = getParser(path)
except UserWarning:
return None
if action == 'added':
a_entities = []
a_map = {}
else:
realpath = (action == 'moved' and self.moved[path]
or action == 'copied' and self.copied[path] or path)
data = self.ctx1.filectx(realpath).data()
data = self._universal_newlines(data)
try:
p.readContents(data)
a_entities, a_map = p.parse()
except:
# consider doing something like:
# logging.warn('Unable to parse %s', path, exc_info=True)
return None
if action == 'removed':
c_entities, c_map = [], {}
else:
data = self.ctx2.filectx(path).data()
data = self._universal_newlines(data)
try:
p.readContents(data)
c_entities, c_map = p.parse()
except:
# consider doing something like:
# logging.warn('Unable to parse %s', path, exc_info=True)
return None
a_list = sorted(a_map.keys())
c_list = sorted(c_map.keys())
ar = AddRemove()
ar.set_left(a_list)
ar.set_right(c_list)
for action, item_or_pair in ar:
if action == 'delete':
lines.append({
'class':
'removed',
'oldval': [{
'value': a_entities[a_map[item_or_pair]].val
}],
'newval':
'',
'entity':
item_or_pair
})
elif action == 'add':
lines.append({
'class':
'added',
'oldval':
'',
'newval': [{
'value': c_entities[c_map[item_or_pair]].val
}],
'entity':
item_or_pair
})
else:
oldval = a_entities[a_map[item_or_pair[0]]].val
newval = c_entities[c_map[item_or_pair[1]]].val
if oldval == newval:
continue
sm = SequenceMatcher(None, oldval, newval)
oldhtml = []
newhtml = []
for op, o1, o2, n1, n2 in sm.get_opcodes():
if o1 != o2:
oldhtml.append({'class': op, 'value': oldval[o1:o2]})
if n1 != n2:
newhtml.append({'class': op, 'value': newval[n1:n2]})
lines.append({
'class': 'changed',
'oldval': oldhtml,
'newval': newhtml,
'entity': item_or_pair[0]
})
return lines