[pelican_comments] Add support comment_system

plugins/pelican_comments/wp2comments

@@ -0,0 +1,77 @@
+#!/usr/bin/python
+
+from codecs import open
+import sys
+import os
+from lxml import etree
+
+COMMENT_DIR='comments'
+
+def wp2comments(xml):
+
+    #xmlfile = open(xml, encoding='utf-8', mode='r').read()
+    tree = etree.parse(xml)
+    root = tree.getroot()
+    items = root.findall('.//item')
+
+    n = 0
+
+    if not os.path.exists(COMMENT_DIR):
+        os.makedirs(COMMENT_DIR)
+    elif not os.path.isdir(COMMENT_DIR):
+        print('"%s" exists but is not a directory!' % COMMENT_DIR)
+        sys.exit(1)
+
+    for item in items:
+        title = item.find('title')
+        if title is None: continue
+
+        # Only fetch comments from published posts.
+        status = item.find('wp:status', namespaces=root.nsmap)
+        if status is None or status.text != 'publish':
+            continue
+
+        slug = item.find('wp:post_name', namespaces=root.nsmap)
+        if slug is None:
+            print('WARNING: skipping "%s" with no post_name')
+            continue
+        slug = slug.text
+
+        comments = item.findall('wp:comment', namespaces=root.nsmap)
+        if not comments:
+            # No comments found for this post.
+            continue
+
+        for comment in comments:
+            def comment_tag(tag):
+                result = comment.find(tag, namespaces=root.nsmap)
+                if result is None:
+                    return ''
+                else:
+                    return result.text
+
+            status = comment_tag('wp:comment_approved')
+            if status != '1':
+                continue
+
+            author = comment_tag('wp:comment_author')
+            ip = comment_tag('wp:comment_author_IP')
+            date = comment_tag('wp:comment_date_gmt')
+            email = comment_tag('wp:comment_author_email')
+            url = comment_tag('wp:comment_author_url')
+            content = comment_tag('wp:comment_content')
+
+            n += 1
+            f = open(os.path.join(COMMENT_DIR, '%s-%d.md' % (slug, n)),
+                     encoding='utf-8', mode='w')
+            f.write(u'post_id: %s\n' % (slug, ))
+            f.write(u'Author: %s\n' % (author, ))
+            f.write(u'Date: %s\n' % (date, ))
+            f.write(u'Author_Email: %s\n' % (email, ))
+            f.write(u'Author_IP: %s\n' % (ip, ))
+            f.write(u'\n%s\n' % (content, ))
+            f.close()
+
+
+if __name__ == '__main__':
+   wp2comments(sys.argv[1])