def FindInvalidCSSVariables(json_string, input_file, git_runner=RunGit):
style_generator = CSSStyleGenerator()
style_generator.AddJSONToModel(json_string, in_file=input_file)
context = style_generator.in_file_to_context[input_file]
if (not context or 'prefix' not in context):
raise KeyError('This tool only works on files with a CSS prefix.')
css_prefix = '--' + context['prefix'] + '-'
valid_names = style_generator.GetCSSVarNames()
found_names_list = git_runner([
'grep', '-ho',
'\\%s[a-z-]*' % css_prefix, '--', '*.css', '*.html', '*.js'
]).splitlines()
found_names = set()
for name in found_names_list:
rgb_suffix = '-rgb'
if name.endswith(rgb_suffix):
name = name[:-len(rgb_suffix)]
found_names.add(name)
return {
'unspecified': found_names.difference(valid_names),
'unused': valid_names.difference(found_names),
'css_prefix': css_prefix,
}
def get_css_var_names_for_contents(contents_function):
style_generator = CSSStyleGenerator()
for f in files:
file_contents = contents_function(f)
if len(file_contents) == 0:
continue
style_generator.AddJSONToModel('\n'.join(file_contents),
in_file=f.LocalPath())
return style_generator.GetCSSVarNames()