Introduction

The path: module provides functions for manipulating and testing filesystem paths.

Function usages are given in the same format as in the reference doc for the builtin module.

Functions

path:abs

path:abs $path

Outputs $path converted to an absolute path.

~> cd ~
~> path:abs bin
▶ /home/user/bin

path:base

path:base $path

Outputs the last element of $path. This is analogous to the POSIX basename command. See the Go documentation for more details.

~> path:base ~/bin
▶ bin

path:clean

path:clean $path

Outputs the shortest version of $path equivalent to $path by purely lexical processing. This is most useful for eliminating unnecessary relative path elements such as . and .. without asking the OS to evaluate the path name. See the Go documentation for more details.

~> path:clean ./../bin
▶ ../bin

path:dir

path:dir $path

Outputs all but the last element of $path, typically the path’s enclosing directory. See the Go documentation for more details. This is analogous to the POSIX dirname command.

~> path:dir /a/b/c/something
▶ /a/b/c

path:eval-symlinks

~> mkdir bin
~> ln -s bin sbin
~> path:eval-symlinks ./sbin/a_command
▶ bin/a_command

Outputs $path after resolving any symbolic links. If $path is relative the result will be relative to the current directory, unless one of the components is an absolute symbolic link. This function calls path:clean on the result before outputing it. This is analogous to the external realpath or readlink command found on many systems. See the Go documentation for more details.

path:ext

ext $path

Outputs the file name extension used by $path (including the separating period). If there is no extension the empty string is output. See the Go documentation for more details.

~> path:ext hello.elv
▶ .elv

path:is-abs

is-abs $path

Outputs $true if the path is an abolute path. Note that platforms like Windows have different rules than UNIX like platforms for what constitutes an absolute path. See the Go documentation for more details.

~> path:is-abs hello.elv
▶ false
~> path:is-abs /hello.elv
▶ true

path:is-dir

is-dir $path

Outputs $true if the path resolves to a directory. If the final element of the path is a symlink, even if it points to a directory, it still outputs $false since a symlink is not a directory. Use eval-symlinks on the path first if you don’t care if the final element is a symlink.

~> touch not-a-dir
~> path:is-dir not-a-dir
▶ false
~> path:is-dir /tmp
▶ true

path:is-regular

is-regular $path

Outputs $true if the path resolves to a regular file. If the final element of the path is a symlink, even if it points to a regular file, it still outputs $false since a symlink is not a regular file. Use eval-symlinks on the path first if you don’t care if the final element is a symlink.

~> touch not-a-dir
~> path:is-regular not-a-dir
▶ true
~> path:is-dir /tmp
▶ false