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Add an imgbasename option to the UML directive #14

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Add an imgbasename option to the UML directive #14

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28 changes: 20 additions & 8 deletions sphinxcontrib/plantuml.py
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Original file line number Diff line number Diff line change
Expand Up @@ -63,6 +63,7 @@ class UmlDirective(Directive):
optional_arguments = 1
option_spec = {'alt': directives.unchanged,
'caption': directives.unchanged,
'imgbasename': directives.unchanged,
'height': directives.length_or_unitless,
'width': directives.length_or_percentage_or_unitless,
'scale': directives.percentage,
Expand Down Expand Up @@ -108,6 +109,9 @@ def run(self):
caption = nodes.caption(self.options['caption'], '', *cnode)
node += caption

if 'imgbasename' in self.options:
node['imgbasename'] = self.options['imgbasename']

return [node]

def _read_utf8(filename):
Expand All @@ -118,13 +122,19 @@ def _read_utf8(filename):
fp.close()

def generate_name(self, node, fileformat):
h = hashlib.sha1()
# may include different file relative to doc
h.update(node['incdir'].encode('utf-8'))
h.update(b'\0')
h.update(node['uml'].encode('utf-8'))
key = h.hexdigest()
fname = 'plantuml-%s.%s' % (key, fileformat)
imgbasename = node.get('imgbasename', None)

if imgbasename is None:
h = hashlib.sha1()
# may include different file relative to doc
h.update(node['incdir'].encode('utf-8'))
h.update(b'\0')
h.update(node['uml'].encode('utf-8'))
key = h.hexdigest()
fname = 'plantuml-%s.%s' % (key, fileformat)
else:
fname = 'plantuml-%s.%s' % (imgbasename, fileformat)

imgpath = getattr(self.builder, 'imgpath', None)
if imgpath:
return ('/'.join((self.builder.imgpath, fname)),
Expand Down Expand Up @@ -161,7 +171,8 @@ def generate_plantuml_args(self, node, fileformat):

def render_plantuml(self, node, fileformat):
refname, outfname = generate_name(self, node, fileformat)
if os.path.exists(outfname):
if (not self.builder.config.plantuml_overwrite_output) and \
os.path.exists(outfname):
return refname, outfname # don't regenerate
absincdir = os.path.join(self.builder.srcdir, node['incdir'])
ensuredir(os.path.dirname(outfname))
Expand Down Expand Up @@ -396,6 +407,7 @@ def setup(app):
app.add_config_value('plantuml_output_format', 'png', 'html')
app.add_config_value('plantuml_epstopdf', 'epstopdf', '')
app.add_config_value('plantuml_latex_output_format', 'png', '')
app.add_config_value('plantuml_overwrite_output', True, 'html')

# imitate what app.add_node() does
if 'rst2pdf.pdfbuilder' in app.config.extensions:
Expand Down