Initial move of code from ATT to LF repo

[yaml_builds.git] / scripts / jcopy.py

diff --git a/scripts/jcopy.py b/scripts/jcopy.py
new file mode 100755 (executable)
index 0000000..fb3f21e
--- /dev/null
+++ b/scripts/jcopy.py
@@ -0,0 +1,93 @@
+#!/usr/bin/python
+##############################################################################
+# Copyright © 2018 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.                                             #
+##############################################################################
+
+#
+#  jcopy.py - Copy a file or files to a target directory, making
+#    substitutions as needed from the values contained in a YAML file.
+#
+#  usage: jcopy.py <yaml> <in_dir_or_file> <out_dir>
+#
+#  Note: jcopy.sh is for Python2, jcopy3.sh is for Python3
+#
+
+import os.path
+import jinja2
+import sys
+import yaml
+
+def expand_files(target_dir, dir_name, files):
+  global total
+  xlen = len(sys.argv[2])
+  targdir = target_dir + dir_name[xlen:]
+  if not os.path.exists(targdir):
+    os.makedirs(targdir)
+  env = jinja2.Environment()
+  env.trim_blocks = True
+  env.lstrip_blocks = True
+
+  for f in files:
+    if f.endswith(".j2"):
+      t = f.replace(".j2", ".yaml")
+      source_path = dir_name + '/' + f
+      target_path = targdir + '/' + t
+      if os.path.isfile(source_path):
+        with open(source_path) as fd:
+          template = env.from_string(fd.read())
+        data = template.render(yaml=yaml)
+        fd2 = open(target_path,'w')
+        fd2.write(data)
+        fd2.write("\n")
+        fd2.close()
+        print '{0} -> {1}'.format(source_path, target_path)
+        total += 1
+
+def expand_file(target_dir, file):
+  global total
+  if not os.path.exists(target_dir):
+    os.makedirs(target_dir)
+  env = jinja2.Environment()
+  env.trim_blocks = True
+  env.lstrip_blocks = True
+  with open(file) as fd:
+    template = env.from_string(fd.read())
+  data = template.render(yaml=yaml)
+  target_path = target_dir + '/' + os.path.basename(file)
+  fd2 = open(target_path,'w')
+  fd2.write(data)
+  fd2.write("\n")
+  fd2.close()
+  print '{0} -> {1}'.format(file, target_path)
+  total += 1
+
+if len(sys.argv) != 4:
+  print 'usage: jcopy.py <yaml> <in_dir_or_file> <out_dir>'
+  sys.exit(1)
+
+with open(sys.argv[1]) as f:
+  yaml = yaml.safe_load(f)
+
+total = 0
+if os.path.isfile(sys.argv[2]):
+  expand_file(sys.argv[3], sys.argv[2])
+else:
+  os.path.walk(sys.argv[2], expand_files, sys.argv[3])
+print '%d files processed.' % total
+sys.exit(0)
+
+# sudo python -m ensurepip --default-pip
+# sudo python -m pip install --upgrade pip setuptools wheel
+# pip install --user jinja2 PyYAML