CODEWITHSUNDEEP
python
Adam Hoge
Adam Hoge

Reputation: 39

Find, renaming, and replacing files

I need to update an existing directory with files that are provided in a Patch directory. This is what I'm starting with. All commented out by me and then I try to build each line.

# $SourceDirectory = Patch folder that has files in any number of sub folders
# $DestDirectory = Application folder that has the files that need patching 
# $UnMatchedFilesFolder = A Folder where SourceFiles go that don't have a match in $DestDirectory
# import os.path
# import os.listdir
#
# Create list1 of files from $SourceDirectory
# For each file (excluding directory names) in List1 (including subfolders), search for it in $DestDirectory and its subfolders;
# If you find the file by the same name, then create a backup of that file with .old;
#   move $DestDirectoryPathAndFile to $DestDirectoryPathAndFile.old;
#   print "Creating backup of file";
#   After the backup is made, then copy the file from the $SourceDirectory to the;
#   exact same location where it was found in the $DestDirectory.  ;
# Else;
#   move file to UnmatchedFilesDirectory.;
#  If the number of files in $UnMatchedFilesDirectory =/ 0;
#   Create list3 from $UnmatchedFilesDirectory
#  print "The following files in $UnMatchedFilesDirectory will need to be installed individually";
# Print "Automated Patching completed.";

# Print "Script completed";

Upvotes: 1

Views: 68

Answers (1)

A Small Shell Script
A Small Shell Script

Reputation: 620

As mentioned in the previous post, I am skeptical of the course you are following based on the information given. Based on the document given, there are far better sites/tutorials available for free to help you learn Python/programming. That said, Stack Overflow is a friendly place, and so I hope to provide you with information which will help you on your way:

import os
source_dir =r"D:\temp"
dest_dir=r"D:\temp2"

for root, dirs, files in os.walk(source_dir):
    # os.walk 'root' steps through subdirectories as we iterate
    # this allows us to join 'root' and 'file' without missing any sub-directories
    for file in files:
        exist_path = os.path.join(root, file)
        # expected_file represents the fullpath of a file we are looking to create/replace
        expected_file = exist_path.replace(source_dir, dest_dir)
        current = os.path.join(root, file)
        if os.path.exists(expected_file):
            print "The file %s exists, os.rename with '.old' before copying %s" % (current, exist_path)
            # .. note:: we should rename to .bkp here, then we would correctly copy the file below without conflict
        print "Now %s doesn't exist, we are free to copy %s" % (expected_file, exist_path)

Upvotes: 1

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