A BASH script to synchronize a Git repository with Overleaf using overleaf-sync of Moritz Glöckl written in Python.

Olgit synchronize a local git repository DIR with a project named PROJ on Overleaf. It creates a new git repository DIR/.olgit where a local copy of PROJ is kept. The workflow is to first pull PROJ from Overleaf to DIR/.olgit by running olgit pull PROJ DIR, then merge it to DIR using olgit merge DIR, and finally push DIR to PROJ on Overleaf by running olgit push PROJ DIR. The merge is implemented as git pull OLDIR/.olgit DIR --allow-unrelated-histories. The script also creates an authentification cookie DIR/.olauth and a list of ignored files DIR/.olignore needed by ols (overleaf-sync). The cookie has to be renewed time to time.

• olgit

      Displays the list of commands.
  

• olgit pull PROJ DIR

      Download `PROJ` from Overleaf to `DIR/.oldir` and commit.
      If `DIR/.oldir` does not exist, it will be created and a repository will be initialized therein.
      If `DIR/.olauth` does not exist, the user will be asked to log in Overleaf.
      The authentification cookie will be downloaded by `ols` and stored in `DIR/.olauth`.
      It does not contain user's credentials.
  

• olgit merge DIR:

      Just runs `git pull OLDIR/.olgit DIR --allow-unrelated-histories` and lets the user to resolve possible conflicts in the git way.
      It is generally recommended to commit `DIR` first before running this command.
      Git then overwrites the content of `DIR` with the content of `DIR/.olgit`, copies the entire history of `DIR/.olgit` to `DIR` branching from a common ancestor, and let user to resolve conflicts and create a merge commit.
  

• olgit push PROJ DIR:

      Calls `ols` to upload tracked files in `DIR` to `PROJ` on Overleaf.
      By design of `ols`, a file `DIR/.olignore` with the list of all ignnored files, i.e., the untracked files, has to be created.
  

• olgit login:

  Runs `ols login` to renew the authentification cookie.          
  

• The download fails:

  Try renewing the authentification cookie by running `ols login`.
  

1. Rewrite olgit in Python without using olsync.py at all. Only the Overleaf API wrapper olclient.py (based on website scraper for python beautifulsoup) should be used.
2. Add an option to specify location of the .olauth file.
3. Replace the .olignore concept with a list of files to synchronize.