org-clock-csv is an Emacs package that extracts clock entries from org files and convert them into CSV format. It is intended to facilitate clocked time analysis in external programs.

You can also read the original blog post.

org-clock-csv is available from MELPA. You can also install it manually by cloning the repository and adding the file to your load-path.

In interactive mode, calling org-clock-csv will open a buffer with the parsed entries from the files in org-agenda-files, while org-clock-csv-to-file will write this output to a file. Both functions take a prefix argument to read entries from the current buffer instead.

Both functions can also be called from lisp code to specify an explicit file list argument.

There is an org-clock-csv-batch-and-exit command that is designed for use in batch mode (essentially, scripting Emacs), which will write CSV content to standard output (and then exit). Calling this function is similar to running tests with ert:

$ emacs -batch -l path/to/org-clock-csv.el \
    -f org-clock-csv-batch-and-exit \
    "~/org/todo.org" \
    > clock-entries.csv

The command accepts a file list as a series of command line arguments (there is only one in the example, but more can be given), or uses the content of org-agenda-files if there are none. You may also want to pipe the output to a file, as in the example.

Since Emacs is running in batch mode, it will not load your init.el file. This has two consequences: (1) any setq or customize code you have written for org or for this package will not be loaded; and (2) Emacs has not been told where your third-party packages are located. So this invokation will likely give you the following error:

Cannot open load file: No such file or directory, s

Since the third-party s library is needed to run org-clock-csv-batch. You can resolve this issue in a few ways. If you don't mind using the default settings of org and this package, the easiest is simply to let package.el (which you are probably using already) handle your third-party packages, as follows:

$ emacs -batch -l package --eval "(package-initialize)" \
    -l org-clock-csv -f org-clock-csv-batch-and-exit \
    "~/org/todo.org" \
    > clock-entries.csv

Alternatively, you can just load your entire init.el file, which will make all of your usual customizations to org and this package:

$ emacs -batch -l "~/.emacs.d/init.el" \
    -l org-clock-csv -f org-clock-csv-batch-and-exit \
    "~/org/todo.org" \
    > clock-entries.csv

(Beware that this method may write messages other than the CSV output to your file.)

Finally, you can simply write a little "shim" script, really a very slimmed-down version of your init.el file, that runs all of your setq code for org and this package and also sets up the load-path (using package.el or an equivalent) so that Emacs can find s and org-clock-csv, and call it as follows:

$ emacs -batch -l path/to/my-shim.el \
    -l org-clock-csv -f org-clock-csv-batch-and-exit \
    "~/org/todo.org" \
    > clock-entries.csv

If you are using Cask you can clone the repository and run cask install to install all the dependencies. To execute the org-clock-csv-batch-and-exit you can then simply run:

cask exec org-clock-csv <file> [files...]

Contributions are welcome in the form of pull requests, although the scope of this package is intended to be small. If you have an org file that fails to parse as expected, feel free to open an issue.

All code is available under the GPLv3, the same license as Emacs itself. See the LICENSE file for details.