Refactor run scripts.

Run DRC, LVS, and PEX share a run_*.sh script.

compiler/verify/run_script.py

@@ -0,0 +1,34 @@
+# See LICENSE for licensing information.
+#
+#Copyright (c) 2019 Regents of the University of California and The Board
+#of Regents for the Oklahoma Agricultural and Mechanical College
+#(acting for and on behalf of Oklahoma State University)
+#All rights reserved.
+#
+"""
+Some baseline functions to run scripts.
+"""
+
+import os
+import debug
+from globals import OPTS
+
+def run_script(cell_name, script="lvs"):
+    """ Run script and create output files. """
+
+    cwd = os.getcwd()
+    os.chdir(OPTS.openram_temp)
+    errfile = "{0}{1}.{2}.err".format(OPTS.openram_temp, cell_name, script)
+    outfile = "{0}{1}.{2}.out".format(OPTS.openram_temp, cell_name, script)
+    resultsfile = "{0}{1}.{2}.report".format(OPTS.openram_temp, cell_name, script)
+
+    cmd = "{0}run_{1}.sh 2> {2} 1> {3}".format(OPTS.openram_temp,
+                                               script,
+                                               errfile,
+                                               outfile)
+    debug.info(2, cmd)
+    os.system(cmd)
+    os.chdir(cwd)
+
+    return (outfile,errfile,resultsfile)
+