Questions tagged [diff]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
1
vote
2answers
111 views

universally understood file-diff format

I've always assumed that the output from diff (typically "unified", whether or not it's colorized) is universally understood among most if not all text-based language programmers. Whether it's used ...
0
votes
1answer
92 views

How to store post edits/snapshots like StackExchange?

I've come up with some ideas for the database design, but I don't know if any of them would be practical in production: posts and a separate post_edits table with a copy of all previous revisions. To ...
4
votes
3answers
122 views

Finding difference in a big live (almost identical) databases

I have a replicated database (not SQL, a triple store, but specifics should not matter too much) running on several hosts. Each of them holds a copy of the database which is updated by feeding from ...
1
vote
0answers
311 views

I want to write an application to compare files, similar to WinMerge. I'm not sure how to design it, though

My current project is to implement a kind of WinMerge clone to compare two files. I am using C++ with the Win32-API (WTL, ATL, that stuff), and I already designed an UI for this. However, I am now ...
6
votes
3answers
546 views

Can I release a git patch (diff) file of closed source/copyright code?

I've patched a bug in some code that is no longer being supported by it's owner but I would like to provide this to other members of the community. A git.patch file technically contains copyright ...
1
vote
1answer
122 views

How do I review code changes that are the result of syncing?

At my current job we develop code on a release branch and then do a code review. After all rework is done the final changes are also synced/merged to the 'main branch'. We want to be sure that all ...
4
votes
1answer
996 views

Why doesn't Google use Courgette for Android updates?

Google has an advanced diff tool specifically designed for compiled binaries called Courgette. Is there any reason why they wouldn't use this in Android and the Google Play Store to download updates? ...
3
votes
3answers
429 views

What can I do to let our team have code reviews of branch merges having hundreds of screens worth of Github diffs?

"Code review" (aka "peer review") seems like a really great idea, so my team started practicing it. For a little while it worked well, but then a co-worker merged a branch in, and asked for a review ...
0
votes
1answer
178 views

How to Ignore Bracketing Style in Code Comparison / Diff

How to ignore bracketing styles when doing code comparisons or diffs? We have several formats of bracketing and I would like: function foo(){ } to be considered the same as function foo() { } ...
12
votes
1answer
389 views

Heuristic Approach for Flexible DIFF Implementation

I have created a DIFF implementation to compare document revisions at work. It is based on An O(ND) Difference Algorithm and Its Variations. One thing that has become important is to take the list ...
4
votes
3answers
743 views

Can we reduce confusion in line-based diff tools by annotating the code with some unique tokens?

Let's say I have procedure1() { --body of first procedure-- } Then I rename it into procedure2 and create a procedure1 above it: procedure1() { --body of second procedure-- } procedure2() {...
-1
votes
1answer
132 views

How to write a program that diffs on hierarchy changes? [closed]

Why is it that diff programs work on a line-by-line basis instead of a hierarchal one? All code can be expressed in a hierarchy, even though it's not immediately apparent. Most of the data we work ...
4
votes
1answer
188 views

Moving past the ignoring or considering whitespace binary: how should I compare files for e.g. commit review?

I am dissatisfied with the file comparison tools I have worked with so far. While no tool would be able to always predict the line matchings that make best sense, at least current tools should be able ...
4
votes
1answer
3k views

How does a binary delta update work?

Both Android and iOS seem to support their application having a binary delta update. But how does it work? I build a binary program, neither of the distribution sites have the source code - how does ...
9
votes
3answers
918 views

How do most sync programs monitor file changes?

Do sync programs like Dropbox typically track file changes by doing byte by byte comparisons, or using hashes, or using diff / keeping local commit logs like version control, or what?
3
votes
1answer
153 views

What does “windowed streaming” stand for?

So I was asking around the Mercurial development mailing list about binary diffing and patch handling and I got the following examples: whole file approaches (classic diff, bsdiff, Mercurial's ...
6
votes
4answers
17k views

How can I display a diff result in a single file or document? [closed]

I'm reviewing my peer's code. I use SourceGear DiffMerge as my diff program, on a Windows environment. While I'm using the diff program, I can clearly see the code changes, etc. Is it possible to ...
5
votes
1answer
3k views

How to use external file comparer in MS TFS [closed]

I don't like ms diff that integrated into Visual Studio 2008 TFS Edition. Is it possible to change this file comparer to external one (Beyond Compare, for example)?
8
votes
3answers
1k views

Choosing a diff program for Mercurial

I decided to try to contribute Firefox development, and they use Mercurial for source control. In the documentation about using Mercurial it was advised to choose a diff program and to do it before ...