directory-utils | chickadee

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

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

directory-unfold

directory-unfold DIRECTORY TEST NEXT SEED #!optional SHOW-DOTFILES?procedure

Walks DIRECTORY, visiting subdirectories based on TEST, and calling NEXT on the recursive value from SEED and each pathname in the directories. Returns the final value.

Directories for which TEST fails are handled by NEXT. The passed pathname is a directory-separator suffixed dirname; example "b/".

TEST: (pathname -> 'a ; called with the full pathname.
NEXT: ('a pathname -> 'a) ; called with the full pathname.
SEED: 'a.
SHOW-DOTFILES?: boolean ; include files with a "." prefix ; Default #f.

create-pathname-directory

create-pathname-directory PATHNAMEprocedure

Ensures the directory component of PATHNAME exist.

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

make-program-filename

make-program-filename COMMANDprocedure

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 COMMANDprocedure

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?

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

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

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

find-command-pathnames

find-command-pathnames COMMAND-NAME #!optional ENVIRONMENT-VARIABLEprocedure

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

which-command-pathname COMMAND-NAME #!optional ENVIRONMENT-VARIABLEprocedure

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

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

Usage

(import (directory-utils stack))

directory-utility-stack

directory-utility-stack #!optional STACKparameter

Which stack to use for directory stack operations.

stack is from stack.

push-directory

push-directory DIRECTORY #!optional STACKprocedure

Push the current directory and change to the DIRECTORY.

DIRECTORY: string ; pathname
STACK: stack ; optional; default (directory-utility-stack)

pop-directory

pop-directory #!optional STACKprocedure

Pop the last directory and change to it.

STACK: stack ; optional; default (directory-utility-stack)

pop-toplevel-directory

pop-toplevel-directory #!optional STACKprocedure

Pop the earliest directory and change to it.

STACK: stack ; optional; default (directory-utility-stack)

Requirements

srfi-1 utf8 miscmacros stack check-errors

test test-utils

Repository

This egg is hosted on the CHICKEN Subversion repository:

https://anonymous@code.call-cc.org/svn/chicken-eggs/release/5/directory-utils

If you want to check out the source code repository of this egg and you are not familiar with Subversion, see this page.

Version history

2.4.1: Revert to "mkdir" as test find command. Drop test of deperecated.
2.4.0: Add directory-foldl, directory-tree-unfold/*directory-tree-unfold, dot-prefix-dirname?, dot-suffix-dirname?. Deperecate directory-fold & which-command-pathnames. Dropped moremacros & list-utils dependencies.
2.3.0: Add dirname?, use utf8, add directory-utils.types include, update test-runner.
2.2.5: Update test-runner.
2.2.4: Fix category.
2.2.3: Update test-runner.
2.2.2: Add strict-types, update test-gloss.
2.2.1: Update test-gloss.
2.2.0: Add optional stack argument to push-directory, pop-directory, pop-toplevel-directory.
2.1.0: CHICKEN 5.1.0 dependent.
2.0.0: CHICKEN 5 release.

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the Software), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

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

THE SOFTWARE IS PROVIDED ASIS, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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