Initial commit (includes bits from django-compress)

LICENSE

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+django_compressor
+---------------
+Copyright (c) 2009 Christian Metts <xian@mintchaos.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+
+
+django_compressor contains code from Andreas Pelme's django-compress
+--------------------------------------------------------------------
+Copyright (c) 2008 Andreas Pelme <andreas@pelme.se>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+
+
+jsmin.py (License-information from the file)
+--------------------------------------------
+This code is original from jsmin by Douglas Crockford, it was translated to
+Python by Baruch Even. The original code had the following copyright and
+license.
+
+/* jsmin.c
+   2007-05-22
+
+Copyright (c) 2002 Douglas Crockford  (www.crockford.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+The Software shall be used for Good, not Evil.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/

compressor/conf/settings.py

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+from django.core.exceptions import ImproperlyConfigured
+from django.conf import settings
+
+
+MEDIA_URL = getattr(settings, 'COMPRESS_URL', settings.MEDIA_URL)
+MEDIA_ROOT = getattr(settings, 'COMPRESS_ROOT', settings.MEDIA_ROOT) 
+PREFIX = getattr(settings, 'COMPRESS_PREFIX', 'compressed') 
+
+COMPRESS = getattr(settings, 'COMPRESS', not settings.DEBUG)
+COMPRESS_CSS_FILTERS = getattr(settings, 'COMPRESS_CSS_FILTERS', [])
+COMPRESS_JS_FILTERS = getattr(settings, 'COMPRESS_JS_FILTERS', ['compressor.filters.jsmin.JSMinFilter'])
+
+if COMPRESS_CSS_FILTERS is None:
+    COMPRESS_CSS_FILTERS = []
+
+if COMPRESS_JS_FILTERS is None:
+    COMPRESS_JS_FILTERS = []

compressor/filters/__init__.py

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+class FilterBase:
+    def __init__(self, verbose):
+        self.verbose = verbose
+
+    def filter_css(self, css):
+        raise NotImplementedError
+    def filter_js(self, js):
+        raise NotImplementedError
+        
+class FilterError(Exception):
+    """
+    This exception is raised when a filter fails
+    """
+    pass

compressor/filters/csstidy/__init__.py

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+import os
+import warnings
+import tempfile
+
+from django.conf import settings
+
+from compressor.filters import FilterBase
+
+BINARY = getattr(settings, 'CSSTIDY_BINARY', 'csstidy')
+ARGUMENTS = getattr(settings, 'CSSTIDY_ARGUMENTS', '--template=highest')
+
+warnings.simplefilter('ignore', RuntimeWarning)
+
+class CSSTidyFilter(FilterBase):
+    def filter_css(self, css):
+        tmp_file = tempfile.NamedTemporaryFile(mode='w+b')
+        tmp_file.write(css)
+        tmp_file.flush()
+
+        output_file = tempfile.NamedTemporaryFile(mode='w+b')
+        
+        command = '%s %s %s %s' % (BINARY, tmp_file.name, ARGUMENTS, output_file.name)
+        
+        command_output = os.popen(command).read()
+        
+        filtered_css = output_file.read()
+        output_file.close()
+        tmp_file.close()
+        
+        if self.verbose:
+            print command_output
+        
+        return filtered_css

compressor/filters/jsmin/__init__.py

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+from compress.filters.jsmin.jsmin import jsmin
+from compressor.filters import FilterBase
+
+class JSMinFilter(FilterBase):
+    def filter_js(self, js):
+        return jsmin(js)

compressor/filters/jsmin/jsmin.py

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+#!/usr/bin/python
+
+# This code is original from jsmin by Douglas Crockford, it was translated to
+# Python by Baruch Even. The original code had the following copyright and
+# license.
+#
+# /* jsmin.c
+#    2007-05-22
+#
+# Copyright (c) 2002 Douglas Crockford  (www.crockford.com)
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy of
+# this software and associated documentation files (the "Software"), to deal in
+# the Software without restriction, including without limitation the rights to
+# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+# of the Software, and to permit persons to whom the Software is furnished to do
+# so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# The Software shall be used for Good, not Evil.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+# */
+
+from StringIO import StringIO
+
+def jsmin(js):
+    ins = StringIO(js)
+    outs = StringIO()
+    JavascriptMinify().minify(ins, outs)
+    str = outs.getvalue()
+    if len(str) > 0 and str[0] == '\n':
+        str = str[1:]
+    return str
+
+def isAlphanum(c):
+    """return true if the character is a letter, digit, underscore,
+           dollar sign, or non-ASCII character.
+    """
+    return ((c >= 'a' and c <= 'z') or (c >= '0' and c <= '9') or
+            (c >= 'A' and c <= 'Z') or c == '_' or c == '$' or c == '\\' or (c is not None and ord(c) > 126));
+
+class UnterminatedComment(Exception):
+    pass
+
+class UnterminatedStringLiteral(Exception):
+    pass
+
+class UnterminatedRegularExpression(Exception):
+    pass
+
+class JavascriptMinify(object):
+
+    def _outA(self):
+        self.outstream.write(self.theA)
+    def _outB(self):
+        self.outstream.write(self.theB)
+
+    def _get(self):
+        """return the next character from stdin. Watch out for lookahead. If
+           the character is a control character, translate it to a space or
+           linefeed.
+        """
+        c = self.theLookahead
+        self.theLookahead = None
+        if c == None:
+            c = self.instream.read(1)
+        if c >= ' ' or c == '\n':
+            return c
+        if c == '': # EOF
+            return '\000'
+        if c == '\r':
+            return '\n'
+        return ' '
+
+    def _peek(self):
+        self.theLookahead = self._get()
+        return self.theLookahead
+
+    def _next(self):
+        """get the next character, excluding comments. peek() is used to see
+           if a '/' is followed by a '/' or '*'.
+        """
+        c = self._get()
+        if c == '/':
+            p = self._peek()
+            if p == '/':
+                c = self._get()
+                while c > '\n':
+                    c = self._get()
+                return c
+            if p == '*':
+                c = self._get()
+                while 1:
+                    c = self._get()
+                    if c == '*':
+                        if self._peek() == '/':
+                            self._get()
+                            return ' '
+                    if c == '\000':
+                        raise UnterminatedComment()
+
+        return c
+
+    def _action(self, action):
+        """do something! What you do is determined by the argument:
+           1   Output A. Copy B to A. Get the next B.
+           2   Copy B to A. Get the next B. (Delete A).
+           3   Get the next B. (Delete B).
+           action treats a string as a single character. Wow!
+           action recognizes a regular expression if it is preceded by ( or , or =.
+        """
+        if action <= 1:
+            self._outA()
+
+        if action <= 2:
+            self.theA = self.theB
+            if self.theA == "'" or self.theA == '"':
+                while 1:
+                    self._outA()
+                    self.theA = self._get()
+                    if self.theA == self.theB:
+                        break
+                    if self.theA <= '\n':
+                        raise UnterminatedStringLiteral()
+                    if self.theA == '\\':
+                        self._outA()
+                        self.theA = self._get()
+
+
+        if action <= 3:
+            self.theB = self._next()
+            if self.theB == '/' and (self.theA == '(' or self.theA == ',' or
+                                     self.theA == '=' or self.theA == ':' or
+                                     self.theA == '[' or self.theA == '?' or
+                                     self.theA == '!' or self.theA == '&' or
+                                     self.theA == '|' or self.theA == ';' or
+                                     self.theA == '{' or self.theA == '}' or
+                                     self.theA == '\n'):
+                self._outA()
+                self._outB()
+                while 1:
+                    self.theA = self._get()
+                    if self.theA == '/':
+                        break
+                    elif self.theA == '\\':
+                        self._outA()
+                        self.theA = self._get()
+                    elif self.theA <= '\n':
+                        raise UnterminatedRegularExpression()
+                    self._outA()
+                self.theB = self._next()
+
+
+    def _jsmin(self):
+        """Copy the input to the output, deleting the characters which are
+           insignificant to JavaScript. Comments will be removed. Tabs will be
+           replaced with spaces. Carriage returns will be replaced with linefeeds.
+           Most spaces and linefeeds will be removed.
+        """
+        self.theA = '\n'
+        self._action(3)
+
+        while self.theA != '\000':
+            if self.theA == ' ':
+                if isAlphanum(self.theB):
+                    self._action(1)
+                else:
+                    self._action(2)
+            elif self.theA == '\n':
+                if self.theB in ['{', '[', '(', '+', '-']:
+                    self._action(1)
+                elif self.theB == ' ':
+                    self._action(3)
+                else:
+                    if isAlphanum(self.theB):
+                        self._action(1)
+                    else:
+                        self._action(2)
+            else:
+                if self.theB == ' ':
+                    if isAlphanum(self.theA):
+                        self._action(1)
+                    else:
+                        self._action(3)
+                elif self.theB == '\n':
+                    if self.theA in ['}', ']', ')', '+', '-', '"', '\'']:
+                        self._action(1)
+                    else:
+                        if isAlphanum(self.theA):
+                            self._action(1)
+                        else:
+                            self._action(3)
+                else:
+                    self._action(1)
+
+    def minify(self, instream, outstream):
+        self.instream = instream
+        self.outstream = outstream
+        self.theA = '\n'
+        self.theB = None
+        self.theLookahead = None
+
+        self._jsmin()
+        self.instream.close()
+
+if __name__ == '__main__':
+    import sys
+    jsm = JavascriptMinify()
+    jsm.minify(sys.stdin, sys.stdout)

compressor/filters/yui/__init__.py

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+import subprocess
+
+from django.conf import settings
+
+from compressor.filters 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)

compressor/templates/compressor/css.html

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+<link href="{{ url }}" rel="stylesheet" type="text/css"{% if media %} media="{{ media }}"{% endif %}{% if title %} title="{{ title|default:"all" }}"{% endif %}{% if charset %} charset="{{ charset }}"{% endif %} />

compressor/templates/compressor/js.html

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+<script type="text/javascript" src="{{ url }}" charset="utf-8"></script>

tests/manage.py

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+#!/usr/bin/env python
+from django.core.management import execute_manager
+import sys
+
+# Give tests/manage.py access to django-compress
+from os.path import dirname, abspath
+sys.path += [dirname(dirname(abspath(__file__)))]
+
+try:
+    import settings # Assumed to be in the same directory.
+except ImportError:
+    sys.stderr.write("Error: Can't find the file 'settings.py' in the directory containing %r. It appears you've customized things.\nYou'll have to run django-admin.py, passing it your settings module.\n(If the file settings.py does indeed exist, it's causing an ImportError somehow.)\n" % __file__)
+    sys.exit(1)
+
+if __name__ == "__main__":
+    execute_manager(settings)

tests/settings.py

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+import sys
+from os.path import dirname, abspath, join
+TEST_DIR = [dirname(abspath(__file__))]
+
+ROOT_URLCONF = 'urls'
+
+DATABASE_ENGINE = 'sqlite3'
+DATABASE_NAME = 'django_inlines_tests.db'
+ 
+INSTALLED_APPS = [
+    'core',
+    'django-compress',
+]
+TEMPLATE_LOADERS = (
+    'django.template.loaders.app_directories.load_template_source',
+)
+
+TEMPLATE_DIRS = (
+    join (TEST_DIR, 'templates'),
+)