1 files changed, 110 insertions, 0 deletions
diff --git a/setuptools/svn_utils.py b/setuptools/svn_utils.py
new file mode 100644
index 00000000..2a200fdf
--- /dev/null
+++ b/setuptools/svn_utils.py
@@ -0,0 +1,110 @@
+import os
+import re
+
+def get_entries_files(base, recurse=True):
+    for base,dirs,files in os.walk(os.curdir):
+        if '.svn' not in dirs:
+            dirs[:] = []
+            continue    # no sense walking uncontrolled subdirs
+        dirs.remove('.svn')
+        f = open(os.path.join(base,'.svn','entries'))
+        yield f.read()
+        f.close()
+
+class SVNEntries(object):
+    def __init__(self, data):
+        self.data = data
+
+    @classmethod
+    def load(class_, base):
+        filename = os.path.join(base, '.svn', 'entries')
+        f = open(filename)
+        result = SVNEntries.read(f)
+        f.close()
+        return result
+
+    @classmethod
+    def read(class_, file):
+        data = file.read()
+        is_xml = data.startswith('<?xml')
+        class_ = [SVNEntriesText, SVNEntriesXML][is_xml]
+        return class_(data)
+
+    def parse_revision(self):
+        all_revs = self.parse_revision_numbers() + [0]
+        return max(all_revs)
+
+class SVNEntriesText(SVNEntries):
+    known_svn_versions = {
+        '1.4.x': 8,
+        '1.5.x': 9,
+        '1.6.x': 10,
+        }
+
+    def __get_cached_sections(self):
+        return self.sections
+        
+    def get_sections(self):
+        SECTION_DIVIDER = '\f\n'
+        sections = self.data.split(SECTION_DIVIDER)
+        sections = map(str.splitlines, sections)
+        try:
+            # remove the SVN version number from the first line
+            svn_version = int(sections[0].pop(0))
+            if not svn_version in self.known_svn_versions.values():
+                log.warn("Unknown subversion verson %d", svn_version)
+        except ValueError:
+            return
+        self.sections = sections
+        self.get_sections = self.__get_cached_sections
+        return self.sections
+
+    def is_valid(self):
+        return bool(self.get_sections())
+    
+    def get_url(self):
+        return self.get_sections()[0][4]
+
+    def parse_revision_numbers(self):
+        revision_line_number = 9
+        rev_numbers = [
+            int(section[revision_line_number])
+            for section in self.get_sections()
+            if len(section)>revision_line_number
+                and section[revision_line_number]
+            ]
+        return rev_numbers
+    
+    def get_undeleted_records(self):
+        undeleted = lambda s: s and s[0] and (len(s) < 6 or s[5] != 'delete')
+        result = [
+            section[0]
+            for section in self.get_sections()
+            if undeleted(section)
+            ]
+        return result
+
+class SVNEntriesXML(SVNEntries):
+    def is_valid(self):
+        return True
+
+    def get_url(self):
+        "Get repository URL"
+        urlre = re.compile('url="([^"]+)"')
+        return urlre.search(self.data).group(1)
+
+    def parse_revision_numbers(self):
+        revre = re.compile('committed-rev="(\d+)"')
+        return [
+            int(m.group(1))
+            for m in revre.finditer(self.data)
+            ]
+    
+    def get_undeleted_records(self):
+        entries_pattern = re.compile(r'name="([^"]+)"(?![^>]+deleted="true")', re.I)
+        results = [
+            unescape(match.group(1))
+            for match in entries_pattern.finditer(self.data)
+            ]
+        return results
+