The trackdown package offers a simple solution for collaborative writing and editing of R Markdown (or Quarto / Sweave) documents. Using trackdown, the local .Rmd (or Quarto / .Rnw) file can be uploaded as a plain-text file to Google Drive. By taking advantage of the easily readable Markdown (or LaTeX) syntax and the well-known online interface offered by Google Docs, collaborators can easily contribute to the writing and editing process. After integrating all authors’ contributions, the final document can be downloaded and rendered locally.

From trackdown v1.3.0 [currently only available on GitHub], the trackdown package introduces the rich_text feature and uses its own API credentials.

• rich_text - Upload rich documents to Google Docs where important text that should not be changed is automatically highlighted (e.g., placeholders hiding the code, header of the document, code chunks, and in-line code). This prevents collaborators from inadvertently making changes to the code which might corrupt the file. See rich-text feature details.
• API Credentials - Now, trackdown uses its own Google API credentials (OAuth client ID and secret). This requires Google authentication and to enable “Trackdown R Package”. The project is undergoing Google verification so it is already available but Google displays a warning message (see details at issue comment). Don’t worry trackdown uses the same system as the googledrive package that was previously used. See details on privacy policy at vignette("trackdown-privacy-policy")).
• [IMPORTANT] We currently reached the maximum number of users for the API credentails. Installing the development trackdown from GitHub will require to create your own API credentials. Please, see instructions at https://claudiozandonella.github.io/trackdown/articles/oauth-client-configuration.html
• Quarto documents now supported!!

You can install the released version from CRAN with:

install.packages("trackdown")

To install the development version from GitHub, run the following code:

# install.packages("remotes")
remotes::install_github("claudiozandonella/trackdown",
                         build_vignettes = TRUE)
library(trackdown)

During the collaborative writing/editing of an .Rmd (or Quarto / .Rnw) document, it is important to employ different workflows for computer code and narrative text:

• Code - Collaborative code writing is done most efficiently by following a traditional Git-based workflow using an online repository (e.g., GitHub or GitLab).
• Narrative Text - Collaborative writing of narrative text is done most efficiently using Google Docs which provides a familiar and simple online interface that allows multiple users to simultaneously write/edit the same document.

Thus, the workflow’s main idea is simple: Upload the .Rmd (or Quarto / .Rnw) document to Google Drive to collaboratively write/edit the narrative text in Google Docs; download the document locally to continue working on the code while harnessing the power of Git for version control and collaboration. This iterative process of uploading to and downloading from Google Drive continues until the desired results are obtained. The workflow can be summarized as:

Collaborative code writing using Git & collaborative writing of narrative text using Google Docs

trackdown offers different functions to manage the workflow:

• upload_file() uploads a file for the first time to Google Drive.
• update_file() updates the content of an existing file in Google Drive with the contents of a local file.
• download_file() downloads the edited version of a file from Google Drive and updates the local version.
• render_file() downloads a file from Google Drive and renders it locally.

trackdown offers additional features to facilitate the collaborative writing and editing of documents in Google Docs. In particular, it is possible to:

• Hide Code: Code in the header of the document (YAML header or LaTeX preamble) and code chunks are removed from the document when uploading to Google Drive and are automatically restored during download. This prevents collaborators from inadvertently making changes to the code which might corrupt the file and allows them to focus on the narrative text.
• Rich Text : Upload rich documents to Google Docs. Important text that should not be changed is automatically highlighted (e.g., placeholders hiding the code, header of the document, code chunks, and in-line code). This prevents collaborators from inadvertently making changes to the code which might corrupt the file.
• Upload Output: The actual output document (i.e., the rendered file) can be uploaded to Google Drive in conjunction with the .Rmd (or Quarto / .Rnw) document. This helps collaborators to evaluate the overall layout including figures and tables and allows them to add comments to suggest and discuss changes.
• Use Google Drive shared drives: The documents can be uploaded to either a personal Google Drive or to a shared drive to facilitate collaboration.

Google Docs offers users a familiar, intuitive, and free web-based interface that allows multiple users to simultaneously write/edit the same document. In Google Docs it is possible to:

• track changes (incl. accepting/rejecting suggestions)
• add comments to suggest and discuss changes
• check spelling and grammar errors (potentially integrating third-party services like Grammarly)

Moreover, Google Docs allows anyone to contribute to the writing/editing of the document. No programming experience is required, users can just focus on writing/editing the narrative text.

Note that not all collaborators have to have a Google account (although this is recommended to utilize all Google Docs features). Only the person who manages the trackdown workflow needs to have a Google account to upload files to Google Drive. Other collaborators can be invited to contribute to the document using a shared link (See Instructions).

All documentation is available at https://claudiozandonella.github.io/trackdown/.

To know more about trackdown, please reference:

• vignette("trackdown-features") for a detailed description of the function arguments and features.
• vignette("trackdown-workflow") for a workflow example and discussion of how to collaborate on narrative text and code.
• vignette("trackdown-tech-notes") for details regarding technical details like authentication and file management.
• Guide to create personal credentials https://claudiozandonella.github.io/trackdown/articles/oauth-client-configuration.html

Workflows and solutions proposed by other users:

• Synchronizing Multiple Documents (link). GitHub Gist by John David Smith to automatically keep track of multiple documents from multiple authors detecting local and online changes. It can be used to manage a Distill website.

Development of the trackdown package is an ongoing project, surely there are many issues to fix and features to propose/add. Anyone is welcome to contribute to the development.

Please note that this project is released under a Contributor Code of Conduct. By contributing to this project, you agree to abide by its terms.

See Community guidelines for further information.

To cite trackdown in publications use:

Emily Kothe, Claudio Zandonella Callegher, Filippo Gambarota, Janosch Linkersdörfer and Mathew Ling (2021). trackdown: Collaborative Writing and Editing of R Markdown (or Quarto / Sweave) Documents in Google Drive. https://doi.org/10.5281/zenodo.5167320.

The BibTeX entry is:

@Manual{,
  title = {trackdown: Collaborative Writing and Editing of R Markdown (or Quarto / Sweave) Documents in Google Drive},
  author = {Emily Kothe and Claudio Zandonella Callegher and Filippo Gambarota and Janosch Linkersdörfer and Mathew Ling},
  year = {2021},
  note = {R package version 1.1.1},
  url = {https://github.com/claudiozandonella/trackdown},
  doi = {10.5281/zenodo.5772942},
}

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