chadwick_path function

Check Chadwick installation

Utility functions to help ensure that Chadwick is set up correctly.

The easiest way for the Chadwick CLI

tools to work on *nix systems is to set the LD_LIBRARY_PATH environment variable. Unfortunately this environment variable is not set by default during the Chadwick installation.

chadwick_ld_library_path() checks to find the Chadwick shared libraries, and then set the LD_LIBRARY_PATH environment variable. If chadwick_ld_library_path() returns TRUE, the cwevent command line program that retrosheet_data

depends on should work.

The other functions documented here are mostly for internal use.

chadwick_path()

chadwick_is_installed()

chadwick_find_lib()

chadwick_set_ld_library_path()

chadwick_ld_library_path()

Returns

If Chadwick is not installed NULL. If Chadwick is installed, the path to the cwevent binary.

TRUE or FALSE

Path to the Chadwick shared library.

Examples

chadwick_path()

chadwick_is_installed()

chadwick_find_lib()
## Not run:

if (chadwick_ld_library_path()) {
  retrosheet_data(tempdir())
}
## End(Not run)

See Also

retrosheet_data()