Raku Land

P5chdir

zef:lizmat

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NAME

Raku port of Perl's chdir() built-in

SYNOPSIS

use P5chdir;

say "switched" if chdir; # switched to HOME or LOGDIR

say "switched" if chdir("lib");

DESCRIPTION

This module tries to mimic the behaviour of Perl's chdir built-in as closely as possible in the Raku Programming Language.

ORIGINAL PERL 5 DOCUMENTATION

chdir EXPR
chdir FILEHANDLE
chdir DIRHANDLE
chdir   Changes the working directory to EXPR, if possible. If EXPR is
        omitted, changes to the directory specified by $ENV{HOME}, if set;
        if not, changes to the directory specified by $ENV{LOGDIR}. (Under
        VMS, the variable $ENV{SYS$LOGIN} is also checked, and used if it
        is set.) If neither is set, "chdir" does nothing. It returns true
        on success, false otherwise. See the example under "die".

        On systems that support fchdir(2), you may pass a filehandle or
        directory handle as the argument. On systems that don't support
        fchdir(2), passing handles raises an exception.

PORTING CAVEATS

In raku, chdir only changes the $*CWD dynamic variable. It does not actually change the default directory from the OS's point of view. This is done this way, because there is no concept of a "default directory per OS thread". And since Raku does not fork, but only does threading, it was felt that the "current directory" concept should be in the $*CWD dynamic variable, which can be lexically scoped, and thus can be thread-safe.

AUTHOR

Elizabeth Mattijsen liz@raku.rocks

Source can be located at: https://github.com/lizmat/P5chdir . Comments and Pull Requests are welcome.

COPYRIGHT AND LICENSE

Copyright 2018, 2019, 2020, 2021 Elizabeth Mattijsen

Re-imagined from Perl as part of the CPAN Butterfly Plan.

This library is free software; you can redistribute it and/or modify it under the Artistic License 2.0.