1 files changed, 63 insertions, 0 deletions
diff --git a/cdap3vm/install-steps/utils/replace-kv.py b/cdap3vm/install-steps/utils/replace-kv.py
new file mode 100644
index 0000000..acd9782
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+++ b/cdap3vm/install-steps/utils/replace-kv.py
@@ -0,0 +1,63 @@
+# ============LICENSE_START==========================================
+# ===================================================================
+# Copyright (c) 2017 AT&T Intellectual Property. All rights reserved.
+# ===================================================================
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#        http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ============LICENSE_END============================================
+# ECOMP and OpenECOMP are trademarks and service marks of AT&T Intellectual Property.
+
+from __future__ import print_function
+import os
+import re
+import sys
+
+"""
+Replace patterns in a file with the corresponding replacements.
+
+Args: OriginalFile OutFile XRefFile
+"""
+
+
+def process_kv_file(fname):
+    """
+    Read a simple properties file, X=Y type; file may contain comment lines and blanks. Return a dict
+    Leading comments are '^\s*#', while blank lines aare '^\s*$'
+    Key cannot contain '=', but value can
+    """
+    ignore_pattern = re.compile(r'^\s*(#|$)') 
+    with open(fname) as fid:
+        all_lines = [ line.strip() for line in fid if not re.match(ignore_pattern, line) ]
+        return dict( line.partition('=')[::2] for line in all_lines )
+
+
+def replace_kv(fname, outfname, *xref_files):
+    """
+    Read a file, and perform multiple search replace using key-values in xref. 
+    Keys have to be simple keys
+    """
+    xref = {}
+    for xref_file in xref_files:
+        xref.update(process_kv_file(xref_file))
+    pattern = re.compile("|".join(xref.keys()))
+    with open(outfname, 'w') as outf:
+        with open(fname) as fid:
+            all_text = fid.read()
+            outf.write(pattern.sub(lambda m: xref[m.group(0)], all_text))
+
+ 
+if __name__ == "__main__":
+    if len(sys.argv) >= 3: 
+        replace_kv(*sys.argv[1:]) 
+    else:
+        print("Usage: {} <{}> <{}> <{}> [{}]".format(
+              sys.argv[0], "InputFile", "OutPutFile", "XREF-DictFile[s]", "..."), file=sys.stderr);