3 idiocket/file
| (require idiocket/file) | package: idiocket |
procedure
(make-cache-busting-file-name variant [n])
→ (or/c path-string? path-for-some-system?) variant : (or/c path-string? path-for-some-system? input-port?) n : (between/c 1 40) = 8
If variant
is a path to a file, then this returns a file name
of the format HASH.EXT. HASH is the first n characters
of variant’s SHA-1 content hash. EXT is the same file
extension used by variant.
If variant is an input port, then this will return a path string
of format HASH using that port’s contents. This procedure
will read all contents from that port.
procedure
(find-file-path p [ search-dirs #:must-exist must-exist]) → (or/c #f complete-path?) p : pathy/c
search-dirs : (non-empty-listof complete-path?) = (list (current-directory)) must-exist : boolean? = #t
If p is complete, this returns p. Otherwise, this
returns the first path built from each directory in
search-dirs to refer to an existing file.
If no file is found, the result depends on must-exist. If
must-exist is a true value, this will raise
exn:fail:filesystem. Otherwise, the result is #f.
procedure
(file-readable? path) → boolean?
path : pathy/c
Returns #t if a file exists at path and is readable.