Moved catalogue, chunks, compress, newtagging and pagination applications to apps...

[wolnelektury.git] / apps / compress / filters / yui / __init__.py

diff --git a/apps/compress/filters/yui/__init__.py b/apps/compress/filters/yui/__init__.py
new file mode 100644 (file)
index 0000000..1e2e711
--- /dev/null
+++ b/apps/compress/filters/yui/__init__.py
@@ -0,0 +1,44 @@
+import subprocess
+
+from django.conf import settings
+
+from compress.filter_base import FilterBase, FilterError
+
+BINARY = getattr(settings, 'COMPRESS_YUI_BINARY', 'java -jar yuicompressor.jar')
+CSS_ARGUMENTS = getattr(settings, 'COMPRESS_YUI_CSS_ARGUMENTS', '')
+JS_ARGUMENTS = getattr(settings, 'COMPRESS_YUI_JS_ARGUMENTS', '')
+
+class YUICompressorFilter(FilterBase):
+
+    def filter_common(self, content, type_, arguments):
+        command = '%s --type=%s %s' % (BINARY, type_, arguments)
+
+        if self.verbose:
+            command += ' --verbose'
+
+        p = subprocess.Popen(command, shell=True, stdout=subprocess.PIPE, stdin=subprocess.PIPE, stderr=subprocess.PIPE)
+        p.stdin.write(content)
+        p.stdin.close()
+
+        filtered_css = p.stdout.read()
+        p.stdout.close()
+
+        err = p.stderr.read()
+        p.stderr.close()
+
+        if p.wait() != 0:
+            if not err:
+                err = 'Unable to apply YUI Compressor filter'
+
+            raise FilterError(err)
+
+        if self.verbose:
+            print err
+
+        return filtered_css
+
+    def filter_js(self, js):
+        return self.filter_common(js, 'js', JS_ARGUMENTS)
+
+    def filter_css(self, css):
+        return self.filter_common(css, 'css', CSS_ARGUMENTS)
\ No newline at end of file