directory-utils

Documentation

pathname?

(pathname? OBJ) procedure: Does not verify existence of the file, just whether it has dir+fil.

(check-pathname LOCATION OBJECT [ARGNAM]) => * procedure
(error-pathname LOCATION OBJECT [ARGNAM]) procedure

filename?

(filename? OBJ) procedure: Does not verify existence of the file, just whether it doesn't have dir.

(check-filename LOCATION OBJECT [ARGNAM]) => * procedure
(error-filename LOCATION OBJECT [ARGNAM]) procedure

dot-filename?

(dot-filename? PATHNAME) => boolean procedure

Does the OBJECT name a file with a dot-name?

Does not verify existence of the file!

dot-pathname?

(dot-pathname? PATHNAME) => boolean procedure

Is any dir in the PATHNAME a dot-filename?

Does not verify existence of the file!

check-directory

(check-directory LOCATION OBJECT [ARGNAM]) => * procedure: Does the OBJECT name an existing directory>

(error-directory LOCATION OBJECT [ARGNAM]) procedure

directory-fold

(directory-fold FUNCTION IDENTITY DIRECTORY [#:dotfiles? DOTFILES?]) => * procedure

Invokes FUNCTION on each filename in the DIRECTORY and the recursive value from IDENTITY. Returns the final value.

Note that only the filename is passed and not the complete pathname. The "." and ".." filenames are not supplied no matter the DOTFILES? setting.

FUNCTION is a (procedure (filename *) *).

DOTFILES is a boolean indicating whether files with a "." prefix are included in the fold. Default is #f.

On a Windows platform hidden files have a hidden attribute so this routine is rather *nix centric.

create-pathname-directory

(create-pathname-directory PATHNAME) procedure

Ensures the directory component of PATHNAME exist.

Like the *nix `"mkdir -p `dirname PATHNAME`" command.

make-program-filename

(make-program-filename COMMAND) procedure

Returns the platform specific form of an executable command filename.

On Windows the "exe" extension is added unless an extension is already present. Does nothing otherwise.

make-shell-filename

(make-shell-filename COMMAND) procedure

Returns the platform specific form of a shell command filename.

On Windows the "bat" extension is added unless an extension is already present. Otherwise conditionally adds the "sh" extension.

file-exists/directory?

(file-exists/directory? FILENAME [DIRECTORY | DIRECTORY-LIST]) procedure

Returns the pathname when FILENAME exists in the DIRECTORY, otherwise #f.

DIRECTORY-LIST is as for make-pathname.

When only the FILENAME parameter supplied then the same as file-exists?.

find-file-pathnames

(find-file-pathnames FILENAME [DIRECTORY | DIRECTORY-LIST] ...) procedure

Returns a list of all pathnames found for FILENAME in the supplied directory/directories, or #f when not found.

The list of pathnames is in the same relative order as that of the directory parameter(s).

find-program-pathnames

(find-program-pathnames COMMAND-NAME [DIRECTORY | DIRECTORY-LIST] ...) procedure

Returns a list of all pathnames found for COMMAND-NAME in the supplied directory/directories, or #f when not found.

Uses make-program-filename to make a filename.

On Windows also uses make-shell-filename to make a filename.

Does not ensure that the file is executable!

which-command-pathnames

(which-command-pathnames COMMAND-NAME [ENVIRONMENT-VARIABLE]) procedure

Returns the pathnames of COMMAND-NAME in the ENVIRONMENT-VARIABLE where the file exists, or #f when nothing found.

The default ENVIRONMENT-VARIABLE is "PATH".

Uses the platform specific "PATH" environment variable element separator - a #\; for Windows, and a #\: otherwise.

which-command-pathname

(which-command-pathname COMMAND-NAME [ENVIRONMENT-VARIABLE]) procedure

Same as which-command-pathnames but returns the first pathname only.

Like the *nix `which COMMAND-NAME` command.

remove-dotfiles

(remove-dotfiles FILES) procedure: Remove dot files from a directory list. Useful with glob.

Directory Stack

push-directory

(push-directory DIRECTORY) procedure: Push the current directory and change to the DIRECTORY.

pop-directory

(pop-directory) procedure: Pop the last directory and change to it.

pop-toplevel-directory

(pop-toplevel-directory) procedure: Pop the earliest directory and change to it.

Usage

(require-extension directory-utils)

Version history

1.0.2: Deprecated create-directory/parents.
1.0.1
1.0.0: Hello

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