utils: Handle Symlinks

Try to recreate the .so version symlinks correctly on Linux
instead of copying the files.

Task-number: PYSIDE-526
Change-Id: I3b015efe4f2f57abe418f171a8631d194ed08f65
Reviewed-by: Christian Tismer <tismer@stackless.com>

1 files changed, 22 insertions, 3 deletions

diff --git a/utils.py b/utils.py
index f7be19d1b..a3f9a41d9 100644
--- a/utils.py
+++ b/utils.py
@@ -231,9 +231,28 @@ def copyfile(src, dst, force=True, vars=None):
         log.info("**Skiping copy file %s to %s. Source does not exists." % (src, dst))
         return
 
-    log.info("Copying file %s to %s." % (src, dst))
-
-    shutil.copy2(src, dst)
+    if not os.path.islink(src):
+        log.info("Copying file %s to %s." % (src, dst))
+        shutil.copy2(src, dst)
+    else:
+        linkTargetPath = os.path.realpath(src)
+        if os.path.dirname(linkTargetPath) == os.path.dirname(src):
+            linkTarget = os.path.basename(linkTargetPath)
+            linkName = os.path.basename(src)
+            currentDirectory = os.getcwd()
+            try:
+                targetDir = dst if os.path.isdir(dst) else os.path.dirname(dst)
+                os.chdir(targetDir)
+                if os.path.exists(linkName):
+                    os.remove(linkName)
+                log.info("Symlinking %s -> %s in %s." % (linkName, linkTarget, targetDir))
+                os.symlink(linkTarget, linkName)
+            except OSError:
+                log.error("%s -> %s: Error creating symlink" % (linkName, linkTarget))
+            finally:
+                os.chdir(currentDirectory)
+        else:
+            log.error("%s -> %s: Can only create symlinks within the same directory" % (src, linkTargetPath))
 
     return dst