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Customize External Source Control to Use MATLAB for Diff and Merge

When using Sourcetree to simplify your interaction with Git and Mercurial repositories, Code Compare can become an easy and convenient tool for comparing and merging conflicts. To use Code Compare with Sourcetree, you need to add the following lines to the gitconfig file. SourceTree and Sublime Merge can be categorized as 'Source Code Management Desktop Apps' tools. 'Visual history and branch view' is the primary reason why developers consider SourceTree over the competitors, whereas 'Speed' was stated as the key factor in picking Sublime Merge. Decisions about SourceTree and Sublime Merge.

SourceTree is ranked 6th while Sublime Merge is ranked 16th. The most important reason people chose SourceTree is: In addition to color-coded branches and icons that tell if a file has been added, removed or modified, SourceTree also displays the number of commits that are ahead and behind the remote branch. Git diff works as expected from the command line but.xlsm files are being treated as binary files by both Sourcetree and Git-Gui. Git xltrail/xl versions 4.0 and 3.1 tested Sourcetree versions 3.1.3 & 3.26 tested Git is version 2.23.0.w.

You can customize external source control tools to use the MATLAB® Comparison Tool for diff and merge. If you want to compare MATLAB files such as live scripts, MAT, SLX, or MDL files from your source control tool, then you can configure your source control tool to open the MATLAB Comparison Tool. The MATLAB Comparison Tool provides tools for merging MathWorks® files and is compatible with popular software configuration management and version control systems. You can use the automerge tool with Git™ to automatically merge branches that contain changes in different subsystems in the same SLX file.

To set up your source control tool to use MATLAB as the application for diff and merge, you must first determine the full paths of the mlDiff, mlMerge, and mlAutoMerge executable files, and then follow the recommended steps for the source control tool you are using.

Finding the Full Paths for MATLAB Diff, Merge, and AutoMerge

To get the required file paths and enable external source control tools to reuse open MATLAB sessions, run this command in MATLAB:

This command sets the MATLAB preference, under Comparison, called Allow external source control tools to use open MATLAB sessions for diffs and merges.

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Best vacuum storage bags for blankets. This command also displays the file paths to copy and paste into your source control tool setup:

  • On Windows®:

  • On Linux®:

  • On Mac:

where matlabroot is replaced with the full path to your installation, for example, C:Program FilesMATLABR2020b.

Note

Your diff and merge operations use open MATLAB sessions when available, and only open MATLAB when necessary. The operations only use the specified MATLAB installation.

Integration with Git

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Command Line

To configure MATLAB diff and merge tools with command-line Git:

  1. Run this command in MATLAB.

    This command displays the full paths of the mlDiff, mlMerge, and mlAutoMerge executable files. It also automatically populates the global .gitconfig file. For example:

    Note

    You need to do step 1 only once for your Git setup.

  2. Configure your repository to use the mlAutoMerge executable file. Open the .gitattributes file in your repository and add:

    Now, when you merge branches that contain changes in different subsystems in the same SLX file, MATLAB handles the merge automatically.

To run the MATLAB diff and merge tools from command-line Git, use git difftool and git mergetool:

  • To compare two revisions of a model using the MATLAB diff tool, type:

    If you do not provide revision IDs, git difftool compares the working copy to the repository copy.

    If you do not specify which model you want to compare, command-line Git will go through all modified files and ask you if you want to compare them one by one.

  • To resolve a merge conflict in a model using the MATLAB merge tool, type:

    If you do not specify which model you want to merge, command-line Git will go through all files and ask you if you want to merge them one by one.

SourceTree

SourceTree is an interactive GUI tool that visualizes and manages Git repositories for Windows and Mac.

  1. Configure the MATLAB diff and merge tools as SourceTree external tools:

    1. With SourceTree open, click Tools > Options.

    2. On the Diff tab, under External Diff / Merge, fill the fields with the following information:

  2. Configure your repository to automerge changes in different subsystems in the same SLX file using the mlAutoMerge executable file:

    1. Open the global .gitconfig file and add:

    2. Open the .gitattributes file in your repository and add:

Tip

Customize the full path of the mlDiff, mlMerge, and mlAutoMerge executables to match both the MATLAB installation and the operating system you are using. For more information, see Finding the Full Paths for MATLAB Diff, Merge, and AutoMerge.

Undo

To use the MATLAB diff tool from within SourceTree, right-click a modified file under Unstaged files and select External Diff.

Sourcetree Undo Merge

To use the MATLAB merge tool when SourceTree detects a merge conflict, select the Uncommitted changes branch, right-click a modified file, and select Resolve Conflicts > Launch External Merge Tool.

Integration with SVN

TortoiseSVN

With TortoiseSVN, you can customize your diff and merge tools based on the file extension. For example, to use MATLAB diff and merge tools for SLX files:

  1. Right-click in any file explorer window and select TortoiseSVN > Settings to open TortoiseSVN settings.

  2. In the Settings sidebar, select Diff Viewer. Click to specify the diff application based on file extensions.

  3. Click and fill the fields with the extension and the mlDiff executable path:

  4. Click and repeat the same steps to add another file extension.

  5. In the Settings sidebar, select Diff ViewerMerge Tool. Click to specify the merge application based on file extensions.

  6. Click and fill the fields with the extension and mlMerge executable path:

  7. Click and repeat the same steps to add another file extension.

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You can now use the MATLAB tools for diff and merge the same way you would use the TortoiseSVN default diff and merge applications.

Note

Automerging binary files with SVN , such as SLX files, is not supported.

Integration with Other Source Control Tools

Perforce P4V

With Perforce® P4V, you can customize your diff and merge tools based on the file extension. To use MATLAB diff and merge tools for SLX files, for example:

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  1. In Perforce, click Edit > Preferences.

  2. In the Preferences sidebar, select Diff. Under Specify diff application by extension (overrides default), click .

  3. In the Add File Type dialog box, enter the following information:

  4. Click .

  5. In the Preferences sidebar, select Merge. Under Specify merge application by extension (overrides default), click .

  6. In the Add File Type dialog box, enter the following information:

  7. Click and repeat the steps for other file extensions.

Sourcetree Merge Options

Tip

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Customize the full path of the mlDiff and mlMerge executables to match both the MATLAB installation and the operating system you are using. For more information, see Finding the Full Paths for MATLAB Diff, Merge, and AutoMerge.

You can now use the MATLAB tools for diff and merge the same way you would use the Perforce default diff and merge applications.

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