![]() Use -ignore-space-change to ignore changes in amount of whitespace.Use -word-diff to show a word diff, using the to delimit changed words: git diff -word-diff.Use -dst-prefix to specify a custom destination prefix instead of "b/": git diff -dst-prefix.Use -src-prefix to specify a custom source prefix instead of "a/": git diff -src-prefix.Use -no-prefix to hide the source and destination prefix: git diff -no-prefix.Use -color-words to highlight changes on a per-word basis using only colors: git diff -color-words.You can modify the text output to suit your needs. You can control the number of context lines with git diff -UN, where N is the number of lines.Lines in both versions start with a space.lines only in the right version start with +.Lines only in the left version start with.Set off by symbol ( -1,3 +1,3 The left and right files are denoted by - and + -1,3 +1,3 Section start line number for both versions are the first number in each comma delimeted pair - 1,3 + 1,3 Section length for both versions is the second number -1, 3 +1, 3 Changes.Displays the left and right files (prefixed with a and b) and the left and right commit hashes.The output may be broken down into the following sections: ( 3) You can think of this as essentially being the previous and current version. Note that the following sections may refer to "left" and "right" versions. The output structure is easily explained, but can be tricky to fully grasp. Here is an example of the git diff default usage and output: $ git diff The git diff command outputs a text based representation known as the unified format. In addition, the git diff output can be formatted to show file names only, instead of the full textual diff. However, you can use git diff anywhere on your filesystem. Most Git commands such as git add and git commit will throw an error like fatal: not a git repository (or any of the parent directories). This is one of the few Git commands that doesn't even need to be used within an existing Git repo. You can also use git diff to compare one or more files that aren't tracked by Git, or are even outside of the working directory. The git diff can then be used for listing the changes between the commit or branch that introduced the bug and the previously working commit. ![]() In the case of a bug in your application, you may run the git bisect command to help identify which commit introduced the bug. What do we mean by two "things"? Almost anything that you want: working directory, staging tree, HEAD, committed changes, branches, or tagsįurthermore, Git diff is especially useful for fixing bugs. ![]() When I merge from somebody, I trust them but on the other hand, hey they might have stopped using their medication, so I trust them but, let's just be honest here, they might have been ok yesterday, but today might not be a good day, so I do diffstat and git does that by default" - Linus Torvalds "After every merge by default git will do a diffstat of everything that changed as a result of that merge because I do care about that. It provides more detail than git status or git log, and is much more flexible in its applications. Git diff is a command-line tool used to determine the differences between two things, per line or even per character. Let's break it down.Ī basic understanding of Git version control is recommended to get the most out of this article. Additionally, Git diff has many options for comparing data between commits and branches. As you will see, this command is particularly flexible and useful at every stage in the git life cycle. In this article we will explore the ins and outs of the git diff command and how to use it. But how useful is it when you want to compare two or more versions in a repository? You may have heard that Git is a great way to store version history. How Do I Save a Result From Git Diff and Apply It Later?.Diff Two Files on the Filesystem (In Working Tree or Otherwise).Git Diff Unstaged Changes in Working Directory with Last Commit.
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