compareWith: RStudio Addins for Enhanced Diff and Merge
compareWith is an R package providing user-friendly RStudio addins that make it easier to perform diff and merge tasks, compared to the limited functionality offered by RStudio itself, especially with projects under version control.
Tasks compareWith greatly helps with include:
- Compare differences prior to commit, for individual files or the whole project.
- Inspect and resolve merge conflicts via three-way comparison.
- Compare two distinct files with each other.
The package relies on Meld, a common visual diff and merge tool.
You can install the latest compareWith from GitHub using the remotes package
The required dependency Meld is available for
most Linux/Unix distributions and can be easily installed there,
sudo apt-get install meld on Debian/Ubuntu.
On Windows, its installation is supported by an MSI installer,
downloadable from the Meld website. We recommend using the 3.18.3
installer (as hinted on the website), since newer versions seem to have
Gtk issues. After installation, you may have to add the location of the
meld.exe to the
PATH environment variable.
Meld is not yet officially supported on MacOS. However, pre-built
binaries are available as
meldmerge.dmg images for new and old releases of Meld. We currently
recommend using Meld 3.16.0, as newer versions do not appear to be
stable. After installation, you need to make sure
meld can be launched
from the command line, e.g. via:
ln -s /Applications/Meld.app/Contents/MacOS/Meld /usr/local/bin/meld
Meld can also be installed via MacPorts, Fink or Brew, where you may also have to switch to an older stable version.
The functionality of compareWith is accessible in RStudio using the Addins menu.