Add ability to unpack a zip/tar file. Not much else yet as

structure of file is unspecified.

acrepo-import-service/src/main/resources/fedora-ingest.py

 #!/usr/bin/python
 # This is the main script - it does the majority of the work.
 
-from __future__ import absolute_import, division, print_function
+from __future__ import absolute_import, print_function
 import sys
+import requests
+import os
+import subprocess
 
 print("Hello there, I received a request to do an import.  Args: " + str(sys.argv))
 
-print("That's all. Goodbye!");
+##############################################################
+# Helpers
+##############################################################
+
+# opens a zip/tgz file and returns the directory location
+def unpack_file(filename):
+    print("Opening zip file " + filename)
+
+    if filename.endswith('tgz') :
+        retval, dirname = unpack_tar(filename)
+    elif filename.endswith('.zip') :
+        retval, dirname = unpack_zip(filename)
+    elif filename.endswith('.gzip') :
+        print('Not implemented yet')
+        retval = -1
+    else:
+        print('Unknown filetype passed in')
+
+    if retval != 0 :
+        print('Unable to unpack file \'{0}\''.format(filename))
+        return ''
+    else :
+        return dirname
+
+def unpack_zip(filename) :
+    # first test and get info from the file
+    args = ['zipinfo', '-1', filename]
+    process = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+    dirname, unused_err = process.communicate()
+    retval = process.poll()
+    print('retval after zipinfo call is {0}'.format(retval))
+
+    # now actually unpack it.
+    if retval == 0:
+        ind = dirname.find('/')
+        dirname = dirname.strip('/\n')
+        args = ['unzip', filename]
+        process = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+        _, unused_err = process.communicate()
+        retval = process.poll()
+        if retval == 0:
+            print('Successfully extracted files from zip file');
+        else:
+            print('Unable to extract files from zip \'{0}\': {1}'.format(filename, retval))
+
+    print('dirname from {0} is: {1}'.format(args[0], dirname))
+
+    if retval != 0 :
+        print('\'unzip\' failed for file {0} with error code {1}'.format(filename, retval))
+
+    return (retval, dirname)
+
+def unpack_tar(filename):
+
+    #check the file first and get dirname
+    args = ['tar', '-tzf', filename]
+    process = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+    dirname, unused_err = process.communicate()
+    retval = process.poll()
+    print('retval after tar call is {0}'.format(retval))
+
+    # now actually unpack it
+    if retval == 0:
+        print('dir is {0}'.format(dirname))
+        dirname = (dirname.split('\n'))[0].strip('/')
+        args = ['tar', '-xvf', filename]
+        process = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+        _, unused_err = process.communicate()
+        retval = process.poll()
+        if retval == 0:
+            print('Successfully extracted files from tgz file');
+        else:
+            print('Unable to extract files from tgz \'{0}\': {1}'.format(filename, retval))
+
+    print('dir is {0}'.format(dirname))
+    return (retval, dirname)
+
+##############################################################
+# End helpers
+##############################################################
+
+def ingest_data(location) :
+    print("ingest_data: noop")
+
+if __name__ == '__main__':
+
+    if sys.argv[1] == None:
+        exit -1
+
+    theFile = sys.argv[1]
+
+    # unpack file into directory
+    directory = unpack_file(theFile)
+    print("directory that houses unpackaged files: " + directory)
+
+    # start to pick up files ...