diff

问题 Say I have a file A, which contains this: a = 5 And a file B, like this: b = 5 Now, it's obvious that diff will produce something like this (the patch): 1c1 < a = 5 --- > b = 5 Patching file A will obviously replace its contents with those of file B, resulting in file A containing b = 5 What I want to do, however, is different. I want the contents of files A and B to merge, so that after patching file A it will contain a = 5 b = 5 My case if course way more complex than my example but I think

问题 In a repository for a well known open source project, all files contain a version string with a timestamp as their first line: <?php // $Id: index.php,v 1.201.2.10 2009-04-25 21:18:24 stronk7 Exp $ Even if I don't really understand why they do this - since the files are already under version control -, I have to live with this. The main problem is that if I try to 'st' or 'diff' a release to get an idea of what was changed from the previous one, every single file contained in the repository

问题 I am investigating the the git interactive features, from which the most important for me is the hunks merging and selection. It works very good but I need the hunks to be smaller. When working with source code files, very often the hunk contains two different changes that are not related (normally a few lines apart from each other). This is probably because git recognizes the hunks with a given configuration, like lines apart, or ammount of chars or something like that. Is this correct, and

问题 I'm trying to create a program in Java that takes two XML files (one is an updated version of the other) and takes them into main memory. It will then compare the files and count the number of differences between each corresponding node from the two (excluding white space). Later on the program will do more with the differences but I'm just confused on how to start comparing nodes from two separate files. Any suggestions would be much appreciated. 回答1: My first suggestion is that you could

问题 Is there a way to differentiate 2 ArrayCollection ? (like array_diff) today I loop on the first and check if $it->contains() match, but I think it can be refactored. 回答1: You can use array_diff in the following way: $diff = array_diff($arrayCollection1->toArray(), $arrayCollection2->toArray()); $arrayCollectionDiff = new ArrayCollection($diff); 回答2: I would suggest the following: A class made of two functions: function getElementFromANotInB gives the elements from ArrayCollection A not in

问题 We have 20 files named as file*.txt all in one directory: file1.txt file2.txt ... file20.txt In the same directory we have other files too, which we need to ignore: someotherfile.csv somemore.txt etc.pdf Need to find out if the contents of the files are the same. Tried to use diff , obviously failed: diff -r ./file*.txt ./file*.txt` 回答1: If you just want a quick visual "are the same" answer, I'd use; md5sum file*.txt 回答2: A relatively simple one-liner might suffice: Tested on OSX, md5 -q file

问题 I am reading the documentation for Python's difllib. According to the docs each, Differ delta gives a sequence Code Meaning '- ' line unique to sequence 1 '+ ' line unique to sequence 2 ' ' line common to both sequences '? ' line not present in either input sequence But what about the "Change" operation? How do I get a "c " instruction similar to the results in Perl's sdiff? 回答1: Show this script. sdiff.py @ hungrysnake.net http://hungrysnake.net/doc/software__sdiff_py.html Perl's sdiff

问题 I'm trying to get lvdiff from meta-diff suite to work with Git. My .gitconfig looks like this: [gui] recentrepo = C:/Users/Tanner/Desktop/FIRST 2010 Beta/Java/LoganRover [user] name = Tanner Smith email = tanner@notimportant.net [merge "labview"] name = LabVIEW 3-Way Merge driver = 'C:/Program Files/National Instruments/Shared/LabVIEW Merge/LVMerge.exe' 'C:/Program Files/National Instruments/LabVIEW 8.6/LabVIEW.exe' %O %B %A %A recursive = binary [diff "lvdiff"] #command = 'C:/Program Files

问题 I was willing to compare two paths (named a and b ) in R using the diff command from Bash . In bash I would do $ a=Path/to/foo/directory/ $ b=Path/to/bar/directory/ $ diff <(printf ${a} | tr / '\n') <(printf ${b} | tr / '\n') 3c3 < foo --- > bar So from R I am trying a="Path/to/foo/directory/" b="Path/to/bar/directory/" system( paste0( "a=",a, ";b=",b, ";diff <(printf ${a} | tr / '\n') <(printf ${b} | tr / '\n')" ) ) OR system( paste0( "diff <(printf ",a," | tr / '\n') <(printf ",b," | tr / '

问题 I have 2 strings and I want the git diff between them. I could create file1 and add string1 as its contents. Then I could create file2 and add string2 as its contents. Then I could git diff file1 and file2. However, given that I have the strings as strings (and not as file contents) can I avoid these long-winded steps? Is there an easier way? Something like: git diff "my first string" "my second string" # obviously does not work 回答1: If you insist on the git way, git diff $(echo "my first