pactest: treat symlinks with more respect

Don't call os.stat() when we should be using os.lstat(); this allows us
to actually test dead symlinks that don't have a corresponding file. Add
a new LINK_EXIST rule that complements FILE_EXIST for a similar purpose.

Signed-off-by: Dan McGee <dan@archlinux.org>

test/pacman/pmpkg.py

@@ -102,7 +102,7 @@ class pmpkg(object):
         # Generate package file system
         for f in self.files:
             util.mkfile(f, f)
-            self.size += os.stat(util.getfilename(f))[stat.ST_SIZE]
+            self.size += os.lstat(util.getfilename(f))[stat.ST_SIZE]
 
         # .PKGINFO
         data = ["pkgname = %s" % self.name]

test/pacman/pmrule.py

@@ -146,6 +146,14 @@ class pmrule(object):
             else:
                 print "FILE rule '%s' not found" % case
                 success = -1
+        elif kind == "LINK":
+            filename = os.path.join(test.root, key)
+            if case == "EXIST":
+                if not os.path.islink(filename):
+                    success = 0
+            else:
+                print "LINK rule '%s' not found" % case
+                success = -1
         elif kind == "CACHE":
             cachedir = os.path.join(test.root, util.PM_CACHEDIR)
             if case == "EXISTS":

test/pacman/util.py

@@ -149,7 +149,6 @@ def getmd5sum(filename):
     """
     """
     if not os.path.isfile(filename):
-        print "file %s does not exist!" % filename
         return ""
     fd = open(filename, "rb")
     checksum = hashlib.md5()
@@ -177,9 +176,8 @@ def getmtime(filename):
     """
     """
     if not os.path.exists(filename):
-        print "path %s does not exist!" % filename
-        return 0, 0, 0
-    st = os.stat(filename)
+        return None, None, None
+    st = os.lstat(filename)
     return st[stat.ST_ATIME], st[stat.ST_MTIME], st[stat.ST_CTIME]
 
 #