This is exactly what happens when you run git difftool or git mergetool. And because this is a global configuration, every IDE should follow suit. If we change vsdiffmerge to something else, like Meld, Visual Studio will honor that choice as well. Whenever you compare two files in Visual Studio, or you open the conflict resolution window, Visual Studio is triggering the commands shown above to launch vsdiffmerge. Vsdiffmerge, the built-in tool that ships with Visual Studio, is configured globally as the default tool for diffing and merging code. Visual Studio users will see something like this: Ĭmd = \"C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\Enterprise\\Common7\\IDE\\CommonExtensions\\Microsoft\\TeamFoundation\\Team Explorer\\vsdiffmerge.exe\" \"$LOCAL\" \"$REMOTE\" //tĬmd = \"C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\Enterprise\\Common7\\IDE\\CommonExtensions\\Microsoft\\TeamFoundation\\Team Explorer\\vsdiffmerge.exe\" \"$REMOTE\" \"$LOCAL\" \"$BASE\" \"$MERGED\" //m If you have never looked at this file before, it is worth opening it up and understanding the config. Ability to resolve conflicts without auto-mergingįor diffing and merging, Visual Studio will honor the global git configuration in C:\Users\YourName\.gitconfig.Can work with any IDE or from the terminal.Meld offers many advantages over vsdiffmerge, the tool that ships with Visual Studio: Meld is open source with a very active community, so it seemed like a safe bet. Meld had the right balance of simplicity and configurability to fit our needs. I trialed several popular third-party diff tools and settled on Meld for our team. I set out to standardize our tooling for diffing and merging code on our git repos so that everyone has the same experience when visualizing code differences, regardless of IDE or operating system. Our novice developers especially had a hard time because the senior developers could only scratch their heads and say, "well, it works for me!"Įventually this became enough of a problem that we had to address it. Developers also have their own versions of Visual Studio with their own configurations, or may not use Visual Studio at all. Some of these issues stem from the fact that a lot of our source code runs on Unix-like systems which can introduce differences in line endings or text encoding. This is a problem which is all-too-familiar for developers using Windows. Developer A has a problem with a particular merge conflict, but Developer B is not able to reproduce the same. Seemingly identical files show huge blocks of differences in Visual Studio's merge tool. Developers have reported alarming problems like code disappearing or duplicating. Recently, my team has been running into issues with our git merges in Visual Studio. Click here to skip to the setup instructions.
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