Acme-CPANModules-TemporaryChdir

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NAME
    Acme::CPANModules::TemporaryChdir - List of modules to change directory
    temporarily

VERSION
    This document describes version 0.001 of
    Acme::CPANModules::TemporaryChdir (from Perl distribution
    Acme-CPANModules-TemporaryChdir), released on 2023-12-15.

DESCRIPTION
    Changing directory can be tricky if you are doing it in a transaction or
    inside a routine where you need to restore the previous working
    directory whether your main action succeeds or not. Forgetting doing it
    and it will cause unexpected behavior for the user calling your code.

    Restoring previous directory can be as simple as:

     use Cwd qw(getcwd);
 
     my $prevcwd = getcwd();
     eval {
         # do some stuffs that might die ...
     };
     # check success status ...
     chdir $prevcwd or die "Can't chdir back to '$prevcwd': $!";

    but it can get tedious. Some modules can help. These modules employ one
    of several mechanisms provided by Perl:

    1) Tied scalar, where reading from the scalar retrieves the current
    working directory and writing to it changes the working directory. The
    user can set the magic variable locally and have Perl restore the old
    value. Modules that use this technique include: File::chdir.

    2) An object, where its constructor records the current working
    directory and its DESTROY restores the previously recorded working
    directory. The user can create a lexically scoped object that can change
    directory but restores the previous working directory when the object
    goes out of scope. Modules that use this technique include: File::pushd
    and Dir::TempChdir.

ACME::CPANMODULES ENTRIES
    File::chdir
        Author: DAGOLDEN <https://metacpan.org/author/DAGOLDEN>

    File::pushd
        Author: DAGOLDEN <https://metacpan.org/author/DAGOLDEN>

    Dir::TempChdir
        Author: CGPAN <https://metacpan.org/author/CGPAN>

FAQ
  What is an Acme::CPANModules::* module?
    An Acme::CPANModules::* module, like this module, contains just a list
    of module names that share a common characteristics. It is a way to
    categorize modules and document CPAN. See Acme::CPANModules for more
    details.

  What are ways to use this Acme::CPANModules module?
    Aside from reading this Acme::CPANModules module's POD documentation,
    you can install all the listed modules (entries) using cpanm-cpanmodules
    script (from App::cpanm::cpanmodules distribution):

     % cpanm-cpanmodules -n TemporaryChdir

    Alternatively you can use the cpanmodules CLI (from App::cpanmodules
    distribution):

        % cpanmodules ls-entries TemporaryChdir | cpanm -n

    or Acme::CM::Get:

        % perl -MAcme::CM::Get=TemporaryChdir -E'say $_->{module} for @{ $LIST->{entries} }' | cpanm -n

    or directly:

        % perl -MAcme::CPANModules::TemporaryChdir -E'say $_->{module} for @{ $Acme::CPANModules::TemporaryChdir::LIST->{entries} }' | cpanm -n

    This Acme::CPANModules module also helps lcpan produce a more meaningful
    result for "lcpan related-mods" command when it comes to finding related
    modules for the modules listed in this Acme::CPANModules module. See
    App::lcpan::Cmd::related_mods for more details on how "related modules"
    are found.

HOMEPAGE
    Please visit the project's homepage at
    <https://metacpan.org/release/Acme-CPANModules-TemporaryChdir>.

SOURCE
    Source repository is at
    <https://github.com/perlancar/perl-Acme-CPANModules-TemporaryChdir>.

SEE ALSO
    Acme::CPANModules - about the Acme::CPANModules namespace

    cpanmodules - CLI tool to let you browse/view the lists



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