chaitanyagupta / source-pathname

Source file pathname in Common Lisp

source-pathname

Three utility macros to help figure out the pathname of the source file where the code is defined.

1. SOURCE-PATHNAME returns the pathname of the source file.
2. SOURCE-TRUENAME returns the truename of the source file.
3. SOURCE-DIRECTORY returns the truename of the source file's directory. Takes an optional pathname, which when provided merges this pathname with the directory pathname. Useful for referencing other files relative to the source file.

FAQ

Why not use *COMPILE-FILE-PATHNAME* or *LOAD-PATHNAME* instead?

*COMPILE-FILE-PATHNAME* works only if the file is compiled first and then loaded. Similarly, *LOAD-PATHNAME* works only if the file is loaded directly and not compiled first. SOURCE-PATHNAME works both ways.

Does it work with SLIME?

This doesn't work with C-c (slime-compile-defun) since it copies the source form to a temporary file before compiling it. As a workaround, use C-c C-k (slime-compile-and-load-file) instead.