1 files changed, 47 insertions, 0 deletions
diff --git a/config/link.py b/config/link.py
new file mode 100644
index 000000000..be63216a0
--- /dev/null
+++ b/config/link.py
@@ -0,0 +1,47 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+import expandlibs_exec
+import sys
+import threading
+import time
+
+def periodically_print_status(proc):
+    """
+    Print something to the console every 20 minutes to prevent the build job
+    from getting killed when linking a large binary.
+    Check status of the linker every 0.5 seconds.
+    """
+    idleTime = 0
+    while proc.returncode is None:
+        time.sleep(0.5)
+        idleTime += 0.5
+        if idleTime > 20 * 60:
+          print "Still linking, 20 minutes passed..."
+          sys.stdout.flush()
+          idleTime = 0
+
+def wrap_linker(args):
+    """
+    Execute |args| and pass resulting |proc| object to a second thread that
+    will track the status of the started |proc|.
+    """
+
+    # This needs to be a list in order for the callback to set the
+    # variable properly with python-2's scoping rules.
+    t = [None]
+    def callback(proc):
+        t[0] = threading.Thread(target=periodically_print_status,
+                             args=(proc,))
+        t[0].start()
+    exitcode = expandlibs_exec.main(args, proc_callback=callback)
+    # Wait for the background thread to finish.
+    t[0].join()
+    return exitcode
+
+if __name__ == "__main__":
+    if len(sys.argv) < 2:
+        print >>sys.stderr, "Usage: link.py <commandline>"
+        sys.exit(1)
+    sys.exit(wrap_linker(sys.argv[1:]))