From 65328b644fef4e134abaa2ec80dfd5d2f523e85e Mon Sep 17 00:00:00 2001
From: Jelmer Vernooij <jelmer@samba.org>
Date: Mon, 22 Nov 2010 22:25:19 +0100
Subject: [PATCH] parse file line by line rather than loading entire file into
 memory.

---
 buildfarm/__init__.py | 27 ++++++++++++---------------
 1 file changed, 12 insertions(+), 15 deletions(-)

diff --git a/buildfarm/__init__.py b/buildfarm/__init__.py
index 509b024e..bc8ad38c 100644
--- a/buildfarm/__init__.py
+++ b/buildfarm/__init__.py
@@ -61,13 +61,13 @@ def read_trees_from_conf(path):
     return ret
 
 
-def lcov_extract_percentage(text):
+def lcov_extract_percentage(f):
     """Extract the coverage percentage from the lcov file."""
-    m = re.search('\<td class="headerItem".*?\>Code\&nbsp\;covered\:\<\/td\>.*?\n.*?\<td class="headerValue".*?\>([0-9.]+) \%', text)
-    if m:
-        return m.group(1)
-    else:
-        return None
+    for l in f:
+        m = re.search('\<td class="headerItem".*?\>Code\&nbsp\;covered\:\<\/td\>.*?\n.*?\<td class="headerValue".*?\>([0-9.]+) \%', l)
+        if m:
+            return m.group(1)
+    return None
 
 
 class BuildFarm(object):
@@ -116,20 +116,17 @@ class BuildFarm(object):
 
     def lcov_status(self, tree):
         """get status of build"""
-        from buildfarm import data, util
+        from buildfarm import data
         file = os.path.join(self.lcovdir, self.LCOVHOST, tree, "index.html")
         try:
-            lcov_html = util.FileLoad(file)
+            lcov_html = open(file, 'r')
         except (OSError, IOError):
             # File does not exist
             raise data.NoSuchBuildError(tree, self.LCOVHOST, "lcov")
-
-        perc = lcov_extract_percentage(lcov_html)
-        if perc is None:
-            ret = ""
-        else:
-            ret = perc
-        return perc
+        try:
+            return lcov_extract_percentage(lcov_html)
+        finally:
+            lcov_html.close()
 
     def get_build(self, tree, host, compiler, rev=None, checksum=None):
         if rev is not None:
-- 
2.34.1