Outdated egg!

This is an egg for CHICKEN 4, the unsupported old release. You're almost certainly looking for the CHICKEN 5 version of this egg, if it exists.

If it does not exist, there may be equivalent functionality provided by another egg; have a look at the egg index. Otherwise, please consider porting this egg to the current version of CHICKEN.

Documentation

pathname?

[procedure] (pathname? OBJ) -> boolean

Does not verify existence of the file, just whether the pathname has a directory and/or file component.

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

filename?

[procedure] (filename? OBJ) -> boolean

Does not verify existence of the file, just whether it has a directory component.

error-filename

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

dot-filename?

[procedure] (dot-filename? PATHNAME) -> boolean

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

Does not verify existence of the file!

dot-pathname?

[procedure] (dot-pathname? PATHNAME) -> boolean

Is any directory in the PATHNAME a dot-filename?

Does not verify existence of the file!

check-directory

[procedure] (check-directory LOCATION OBJECT [ARGNAM]) -> directoryname

Does the OBJECT name an existing directory>

[procedure] (error-directory LOCATION OBJECT [ARGNAM])

directory-fold

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

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

FUNCTION: (filename * -> *).
DOTFILES: boolean ; include files with a "." prefix ; Default #f.

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

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

create-pathname-directory

[procedure] (create-pathname-directory PATHNAME)

Ensures the directory component of PATHNAME exist.

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

make-program-filename

[procedure] (make-program-filename COMMAND) -> *

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

[procedure] (make-shell-filename COMMAND) -> *

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-in-directory?

[procedure] (file-exists-in-directory? FILENAME [DIRECTORY ...]) -> (or #f pathname)

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

DIRECTORY ... as make-pathname.

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

find-file-pathnames

[procedure] (find-file-pathnames FILENAME [DIRECTORY | DIRECTORY-LIST] ...) -> (or #f (list-of pathname))

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

[procedure] (find-program-pathnames COMMAND-NAME [DIRECTORY | DIRECTORY-LIST] ...) -> (or #f (list-of pathname))

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

[procedure] (which-command-pathnames COMMAND-NAME [ENVIRONMENT-VARIABLE]) -> (or #f (list-of pathname))

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 Windows #\;, and a *nix #\:.

which-command-pathname

[procedure] (which-command-pathname COMMAND-NAME [ENVIRONMENT-VARIABLE]) -> (or #f pathname)

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

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

remove-dotfiles

[procedure] (remove-dotfiles FILES)

Remove dot files from a directory list. Useful with glob.

Directory Stack

directory-utility-stack

[parameter] (directory-utility-stack [STACK]) -> stack

Which stack to use for directory stack operations.

stack is from stack.

push-directory

[procedure] (push-directory DIRECTORY)

Push the current directory and change to the string DIRECTORY.

pop-directory

[procedure] (pop-directory) -> string

Pop the last directory and change to it.

pop-toplevel-directory

[procedure] (pop-toplevel-directory) -> string

Pop the earliest directory and change to it.

Usage

(require-extension directory-utils)

Version history

1.1.1: Fix dependency.
1.1.0: Add types.
1.0.6: fix test.
1.0.3: More tests.
1.0.2: Deprecated create-directory/parents.
1.0.1
1.0.0: Hello

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The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

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