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In the context of a software update system, suppose we have the following: a.tar: an archive file containing an old version of an application b-a.patch: a file containing the binary difference of the ...
djvg's user avatar
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You have the following situation: You have an SQL database containing two tables product and product_images You would like the user to be able to add, remove, or move around existing images They can ...
Mehdi Saffar's user avatar
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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 ...
r2evans's user avatar
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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 ...
davidtgq's user avatar
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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 ...
StasM's user avatar
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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 ...
Sossenbinder's user avatar
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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 ...
Simon Stevens's user avatar
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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 ...
compie's user avatar
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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? ...
you786's user avatar
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"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 ...
machineghost's user avatar
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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() { } Right ...
user3341556's user avatar
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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 ...
ptpaterson's user avatar
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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() { ...
Jay Lorn's user avatar
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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 ...
Brad's user avatar
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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 ...
Pierre Lebeaupin's user avatar
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1 answer
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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 ...
Ted Wong's user avatar
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10 votes
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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?
mcandre's user avatar
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1 answer
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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 ...
dukeofgaming's user avatar
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4 answers
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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 ...
Ron Klein's user avatar
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5 votes
1 answer
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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)?
777's user avatar
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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 ...
EpsilonVector's user avatar
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