diff

I have a file with name foo.txt . This file contains some text. I want to achieve following functionality: I launch program write something to the file (for example add one row: new string in foo.txt ) I want to get ONLY NEW content of this file. Can you clarify the best solution of this problem? Also I want resolve related issues: in case if I modify foo.txt I want to see diff. The closest tool which I found in Java is WatchService but if I understood right this tool can only detect type of event happened on filesystem (create file or delete or modify). Java Diff Utils is designed for that

I want to compare two bmp files. I thought of two approaches: to compare the header as well as the information header of the two files convert the bmp file to binary and then do the above comparison But, I don't know how to start and which will be a better approach. I would be glad if someone could please help me! I don't know on which platform you want to implement this, but here are some code snippets which could be useful: Compare two images with C# This is a snippet to compare 2 images to see if they are the same. This method first converts each Bitmap to a byte array, then gets the hash

I want to compare two bmp files. I thought of two approaches: to compare the header as well as the information header of the two files convert the bmp file to binary and then do the above comparison But, I don't know how to start and which will be a better approach. I would be glad if someone could please help me! I don't know on which platform you want to implement this, but here are some code snippets which could be useful: Compare two images with C# This is a snippet to compare 2 images to see if they are the same. This method first converts each Bitmap to a byte array, then gets the hash

I have a file server backup on an external hard drive a few months old for a file server that went down since then. Most of the data was recovered onto a temporary file server thats been in use since then but there are some inconsistencies. I am going to mount the external and rsync it with the current data to it but first I need to establish files that have gotten updated on the newer copy. I can do diff -r -q /old/ /new/ to obtain this, I am trying to get better at scripting so I am trying to write something that will rename the old file to filename.old whenever diff returns a difference. So

This is a question related to: Hibernate Envers revision info (changes list) and Getting the old value and new value between two revisions with Hibernate Envers Since these questions are a few years old I would like to know if there has anything changed? Is it now possible to retrieve diffs with envers? Or do I still have to load two revisions and compare them by myself in Java? And if so - what's the best way to compare the two version in Java? Thanks. I don't think anything's changed on the Envers side 来源： https://stackoverflow.com/questions/30726464/diff-on-hibernate-envers-revisions

I'm currently writing a diff-algorithm to detect inserts, deletes, updates and moves between two revisions of a tree whereas each node has a unique ID which doesn't change through the revisions. I'm going to traverse each tree in preorder and generate diffs between two nodes on the fly and move the cursors accordingly (for instance after a deleted node is encountered only the cursor on the old revision is moved forward and vice versa for inserted nodes). Now my problem is that I have to detect the cut and paste points in case of moves (where a moved node is cutted from the old revision and