NAME
    Path::Tiny - File path utility

VERSION
    version 0.030

SYNOPSIS
      use Path::Tiny;

      # creating Path::Tiny objects

      $dir = path("/tmp");
      $foo = path("foo.txt");

      $subdir = $dir->child("foo");
      $bar = $subdir->child("bar.txt");

      # stringifies as cleaned up path

      $file = path("./foo.txt");
      print $file; # "foo.txt"

      # reading files

      $guts = $file->slurp;
      $guts = $file->slurp_utf8;

      @lines = $file->lines;
      @lines = $file->lines_utf8;

      $head = $file->lines( {count => 1} );

      # writing files

      $bar->spew( @data );
      $bar->spew_utf8( @data );

      # reading directories

      for ( $dir->children ) { ... }

      $iter = $dir->iterator;
      while ( my $next = $iter->() ) { ... }

DESCRIPTION
    This module attempts to provide a small, fast utility for working with
    file paths. It is friendlier to use than File::Spec and provides easy
    access to functions from several other core file handling modules.

    It doesn't attempt to be as full-featured as IO::All or Path::Class, nor
    does it try to work for anything except Unix-like and Win32 platforms.
    Even then, it might break if you try something particularly obscure or
    tortuous. (Quick! What does this mean:
    "///../../..//./././a//b/.././c/././"? And how does it differ on Win32?)

    All paths are forced to have Unix-style forward slashes. Stringifying
    the object gives you back the path (after some clean up).

    File input/output methods "flock" handles before reading or writing, as
    appropriate.

    The *_utf8 methods ("slurp_utf8", "lines_utf8", etc.) operate in raw
    mode without CRLF translation. Installing Unicode::UTF8 0.58 or later
    will speed up several of them and is highly recommended.

    It uses autodie internally, so most failures will be thrown as
    exceptions.

CONSTRUCTORS
  path
        $path = path("foo/bar");
        $path = path("/tmp", "file.txt"); # list
        $path = path(".");                # cwd
        $path = path("~user/file.txt");   # tilde processing

    Constructs a "Path::Tiny" object. It doesn't matter if you give a file
    or directory path. It's still up to you to call directory-like methods
    only on directories and file-like methods only on files. This function
    is exported automatically by default.

    The first argument must be defined and have non-zero length or an
    exception will be thrown. This prevents subtle, dangerous errors with
    code like "path( maybe_undef() )->remove_tree".

    If the first component of the path is a tilde ('~') then the component
    will be replaced with the output of "glob('~')". If the first component
    of the path is a tilde followed by a user name then the component will
    be replaced with output of "glob('~username')". Behaviour for
    non-existent users depends on the output of "glob" on the system.

    On Windows, if the path consists of a drive identifier without a path
    component ("C:" or "D:"), it will be expanded to the absolute path of
    the current directory on that volume using "Cwd::getdcwd()".

  new
        $path = Path::Tiny->new("foo/bar");

    This is just like "path", but with method call overhead. (Why would you
    do that?)

  cwd
        $path = Path::Tiny->cwd; # path( Cwd::getcwd )
        $path = cwd; # optional export

    Gives you the absolute path to the current directory as a "Path::Tiny"
    object. This is slightly faster than "path(".")->absolute".

    "cwd" may be exported on request and used as a function instead of as a
    method.

  rootdir
        $path = Path::Tiny->rootdir; # /
        $path = rootdir;             # optional export

    Gives you "File::Spec->rootdir" as a "Path::Tiny" object if you're too
    picky for "path("/")".

    "rootdir" may be exported on request and used as a function instead of
    as a method.

  tempfile, tempdir
        $temp = Path::Tiny->tempfile( @options );
        $temp = Path::Tiny->tempdir( @options );
        $temp = tempfile( @options ); # optional export
        $temp = tempdir( @options );  # optional export

    "tempfile" passes the options to "File::Temp->new" and returns a
    "Path::Tiny" object with the file name. The "TMPDIR" option is enabled
    by default.

    The resulting "File::Temp" object is cached. When the "Path::Tiny"
    object is destroyed, the "File::Temp" object will be as well.

    "File::Temp" annoyingly requires you to specify a custom template in
    slightly different ways depending on which function or method you call,
    but "Path::Tiny" lets you ignore that and can take either a leading
    template or a "TEMPLATE" option and does the right thing.

        $temp = Path::Tiny->tempfile( "customXXXXXXXX" );             # ok
        $temp = Path::Tiny->tempfile( TEMPLATE => "customXXXXXXXX" ); # ok

    The tempfile path object will normalized to have an absolute path, even
    if created in a relative directory using "DIR".

    "tempdir" is just like "tempfile", except it calls "File::Temp->newdir"
    instead.

    Both "tempfile" and "tempdir" may be exported on request and used as
    functions instead of as methods.

METHODS
  absolute
        $abs = path("foo/bar")->absolute;
        $abs = path("foo/bar")->absolute("/tmp");

    Returns a new "Path::Tiny" object with an absolute path. Unless an
    argument is given, the current directory is used as the absolute base
    path. The argument must be absolute or you won't get an absolute result.

    This will not resolve upward directories ("foo/../bar") unless
    "canonpath" in File::Spec would normally do so on your platform. If you
    need them resolved, you must call the more expensive "realpath" method
    instead.

  append, append_raw, append_utf8
        path("foo.txt")->append(@data);
        path("foo.txt")->append(\@data);
        path("foo.txt")->append({binmode => ":raw"}, @data);
        path("foo.txt")->append_raw(@data);
        path("foo.txt")->append_utf8(@data);

    Appends data to a file. The file is locked with "flock" prior to
    writing. An optional hash reference may be used to pass options. The
    only option is "binmode", which is passed to "binmode()" on the handle
    used for writing.

    "append_raw" is like "append" with a "binmode" of ":unix" for fast,
    unbuffered, raw write.

    "append_utf8" is like "append" with a "binmode" of
    ":unix:encoding(UTF-8)". If Unicode::UTF8 0.58+ is installed, a raw
    append will be done instead on the data encoded with "Unicode::UTF8".

  basename
        $name = path("foo/bar.txt")->basename; # bar.txt

    Returns the file portion or last directory portion of a path.

  canonpath
        $canonical = path("foo/bar")->canonpath; # foo\bar on Windows

    Returns a string with the canonical format of the path name for the
    platform. In particular, this means directory separators will be "\" on
    Windows.

  child
        $file = path("/tmp")->child("foo.txt"); # "/tmp/foo.txt"
        $file = path("/tmp")->child(@parts);

    Returns a new "Path::Tiny" object relative to the original. Works like
    "catfile" or "catdir" from File::Spec, but without caring about file or
    directories.

  children
        @paths = path("/tmp")->children;
        @paths = path("/tmp")->children( qr/\.txt$/ );

    Returns a list of "Path::Tiny" objects for all files and directories
    within a directory. Excludes "." and ".." automatically.

    If an optional "qr//" argument is provided, it only returns objects for
    child names that match the given regular expression. Only the base name
    is used for matching:

        @paths = path("/tmp")->children( qr/^foo/ );
        # matches children like the glob foo*

  copy
        path("/tmp/foo.txt")->copy("/tmp/bar.txt");

    Copies a file using File::Copy's "copy" function.

  digest
        $obj = path("/tmp/foo.txt")->digest;        # SHA-256
        $obj = path("/tmp/foo.txt")->digest("MD5"); # user-selected

    Returns a hexadecimal digest for a file. Any arguments are passed to the
    constructor for Digest to select an algorithm. If no arguments are
    given, the default is SHA-256.

  dirname
        $name = path("/tmp/foo.txt")->dirname; # "/tmp/"

    Returns the directory name portion of the path. This is roughly
    equivalent to what File::Spec would give from "splitpath" and thus
    usually has the trailing slash. If that's not desired, stringify
    directories or call "parent" on files.

  exists, is_file, is_dir
        if ( path("/tmp")->exists ) { ... }
        if ( path("/tmp")->is_file ) { ... }
        if ( path("/tmp")->is_dir ) { ... }

    Just like "-e", "-f" or "-d". This means the file or directory actually
    has to exist on the filesystem. Until then, it's just a path.

  filehandle
        $fh = path("/tmp/foo.txt")->filehandle($mode, $binmode);

    Returns an open file handle. The $mode argument must be a Perl-style
    read/write mode string ("<" ,">", "<<", etc.). If a $binmode is given,
    it is set during the "open" call.

    See "openr", "openw", "openrw", and "opena" for sugar.

  is_absolute, is_relative
        if ( path("/tmp")->is_absolute ) { ... }
        if ( path("/tmp")->is_relative ) { ... }

    Booleans for whether the path appears absolute or relative.

  iterator
        $iter = path("/tmp")->iterator( \%options );

    Returns a code reference that walks a directory lazily. Each invocation
    returns a "Path::Tiny" object or undef when the iterator is exhausted.

        $iter = path("/tmp")->iterator;
        while ( $path = $iter->() ) {
            ...
        }

    The current and parent directory entries ("." and "..") will not be
    included.

    If the "recurse" option is true, the iterator will walk the directory
    recursively, breadth-first. If the "follow_symlinks" option is also
    true, directory links will be followed recursively. There is no
    protection against loops when following links.

    For a more powerful, recursive iterator with built-in loop avoidance,
    see Path::Iterator::Rule.

  lines, lines_raw, lines_utf8
        @contents = path("/tmp/foo.txt")->lines;
        @contents = path("/tmp/foo.txt")->lines(\%options);
        @contents = path("/tmp/foo.txt")->lines_raw;
        @contents = path("/tmp/foo.txt")->lines_utf8;

        @contents = path("/tmp/foo.txt")->lines( { chomp => 1, count => 4 } );

    Returns a list of lines from a file. Optionally takes a hash-reference
    of options. Valid options are "binmode", "count" and "chomp". If
    "binmode" is provided, it will be set on the handle prior to reading. If
    "count" is provided, up to that many lines will be returned. If "chomp"
    is set, lines will be chomped before being returned.

    Because the return is a list, "lines" in scalar context will return the
    number of lines (and throw away the data).

        $number_of_lines = path("/tmp/foo.txt")->lines;

    "lines_raw" is like "lines" with a "binmode" of ":raw". We use ":raw"
    instead of ":unix" so PerlIO buffering can manage reading by line.

    "lines_utf8" is like "lines" with a "binmode" of ":raw:encoding(UTF-8)".
    If Unicode::UTF8 0.58+ is installed, a raw UTF-8 slurp will be done and
    then the lines will be split. This is actually faster than relying on
    ":encoding(UTF-8)", though a bit memory intensive. If memory use is a
    concern, consider "openr_utf8" and iterating directly on the handle.

  mkpath
        path("foo/bar/baz")->mkpath;
        path("foo/bar/baz")->mkpath( \%options );

    Like calling "make_path" from File::Path. An optional hash reference is
    passed through to "make_path". Errors will be trapped and an exception
    thrown. Returns the list of directories created or an empty list if the
    directories already exist, just like "make_path".

  move
        path("foo.txt")->move("bar.txt");

    Just like "rename".

  openr, openw, openrw, opena
        $fh = path("foo.txt")->openr($binmode);  # read
        $fh = path("foo.txt")->openr_raw;
        $fh = path("foo.txt")->openr_utf8;

        $fh = path("foo.txt")->openw($binmode);  # write
        $fh = path("foo.txt")->openw_raw;
        $fh = path("foo.txt")->openw_utf8;

        $fh = path("foo.txt")->opena($binmode);  # append
        $fh = path("foo.txt")->opena_raw;
        $fh = path("foo.txt")->opena_utf8;

        $fh = path("foo.txt")->openrw($binmode); # read/write
        $fh = path("foo.txt")->openrw_raw;
        $fh = path("foo.txt")->openrw_utf8;

    Returns a file handle opened in the specified mode. The "openr" style
    methods take a single "binmode" argument. All of the "open*" methods
    have "open*_raw" and "open*_utf8" equivalents that use ":raw" and
    ":raw:encoding(UTF-8)", respectively.

  parent
        $parent = path("foo/bar/baz")->parent; # foo/bar
        $parent = path("foo/wibble.txt")->parent; # foo

        $parent = path("foo/bar/baz")->parent(2); # foo

    Returns a "Path::Tiny" object corresponding to the parent directory of
    the original directory or file. An optional positive integer argument is
    the number of parent directories upwards to return. "parent" by itself
    is equivalent to parent(1).

  realpath
        $real = path("/baz/foo/../bar")->realpath;
        $real = path("foo/../bar")->realpath;

    Returns a new "Path::Tiny" object with all symbolic links and upward
    directory parts resolved using Cwd's "realpath". Compared to "absolute",
    this is more expensive as it must actually consult the filesystem.

  relative
        $rel = path("/tmp/foo/bar")->relative("/tmp"); # foo/bar

    Returns a "Path::Tiny" object with a relative path name. Given the
    trickiness of this, it's a thin wrapper around "File::Spec->abs2rel()".

  remove
        path("foo.txt")->remove;

    Note: as of 0.012, remove only works on files.

    This is just like "unlink", except if the path does not exist, it
    returns false rather than throwing an exception.

  remove_tree
        # directory
        path("foo/bar/baz")->remove_tree;
        path("foo/bar/baz")->remove_tree( \%options );
        path("foo/bar/baz")->remove_tree( { safe => 0 } ); # force remove

    Like calling "remove_tree" from File::Path, but defaults to "safe" mode.
    An optional hash reference is passed through to "remove_tree". Errors
    will be trapped and an exception thrown. Returns the number of
    directories deleted, just like "remove_tree".

    If you want to remove a directory only if it is empty, use the built-in
    "rmdir" function instead.

        rmdir path("foo/bar/baz/");

  slurp, slurp_raw, slurp_utf8
        $data = path("foo.txt")->slurp;
        $data = path("foo.txt")->slurp( {binmode => ":raw"} );
        $data = path("foo.txt")->slurp_raw;
        $data = path("foo.txt")->slurp_utf8;

    Reads file contents into a scalar. Takes an optional hash reference may
    be used to pass options. The only option is "binmode", which is passed
    to "binmode()" on the handle used for reading.

    "slurp_raw" is like "slurp" with a "binmode" of ":unix" for a fast,
    unbuffered, raw read.

    "slurp_utf8" is like "slurp" with a "binmode" of
    ":unix:encoding(UTF-8)". If Unicode::UTF8 0.58+ is installed, a raw
    slurp will be done instead and the result decoded with "Unicode::UTF8".
    This is just as strict and is roughly an order of magnitude faster than
    using ":encoding(UTF-8)".

  spew, spew_raw, spew_utf8
        path("foo.txt")->spew(@data);
        path("foo.txt")->spew(\@data);
        path("foo.txt")->spew({binmode => ":raw"}, @data);
        path("foo.txt")->spew_raw(@data);
        path("foo.txt")->spew_utf8(@data);

    Writes data to a file atomically. The file is written to a temporary
    file in the same directory, then renamed over the original. An optional
    hash reference may be used to pass options. The only option is
    "binmode", which is passed to "binmode()" on the handle used for
    writing.

    "spew_raw" is like "spew" with a "binmode" of ":unix" for a fast,
    unbuffered, raw write.

    "spew_utf8" is like "spew" with a "binmode" of ":unix:encoding(UTF-8)".
    If Unicode::UTF8 0.58+ is installed, a raw spew will be done instead on
    the data encoded with "Unicode::UTF8".

  stat, lstat
        $stat = path("foo.txt")->stat;
        $stat = path("/some/symlink")->lstat;

    Like calling "stat" or "lstat" from File::stat.

  stringify
        $path = path("foo.txt");
        say $path->stringify; # same as "$path"

    Returns a string representation of the path. Unlike "canonpath", this
    method returns the path standardized with Unix-style "/" directory
    separators.

  touch
        path("foo.txt")->touch;
        path("foo.txt")->touch($epoch_secs);

    Like the Unix "touch" utility. Creates the file if it doesn't exist, or
    else changes the modification and access times to the current time. If
    the first argument is the epoch seconds then it will be used.

    Returns the path object so it can be easily chained with spew:

        path("foo.txt")->touch->spew( $content );

  touchpath
        path("bar/baz/foo.txt")->touchpath;

    Combines "mkpath" and "touch". Creates the parent directory if it
    doesn't exist, before touching the file. Returns the path object like
    "touch" does.

  volume
        $vol = path("/tmp/foo.txt")->volume;

    Returns the volume portion of the path. This is equivalent equivalent to
    what File::Spec would give from "splitpath" and thus usually is the
    empty string on Unix-like operating systems.

CAVEATS
  utf8 vs UTF-8
    All the *_utf8 methods use ":encoding(UTF-8)" -- either as
    ":unix:encoding(UTF-8)" (unbuffered) or ":raw:encoding(UTF-8)"
    (buffered) -- which is strict against the Unicode spec and disallows
    illegal Unicode codepoints or UTF-8 sequences.

    Unfortunately, ":encoding(UTF-8)" is very, very slow. If you install
    Unicode::UTF8 0.58 or later, that module will be used by some *_utf8
    methods to encode or decode data after a raw, binary input/output
    operation, which is much faster.

    If you need the performance and can accept the security risk,
    "slurp({binmode => ":unix:utf8"})" will be faster than
    ":unix:encoding(UTF-8)" (but not as fast as "Unicode::UTF8").

    Note that the *_utf8 methods read in raw mode. There is no CRLF
    translation on Windows. If you must have CRLF translation, use the
    regular input/output methods with an appropriate binmode:

      $path->spew_utf8($data);                            # raw
      $path->spew({binmode => ":encoding(UTF-8)"}, $data; # LF -> CRLF

    Consider PerlIO::utf8_strict for a faster PerlIO layer alternative to
    ":encoding(UTF-8)", though it does not appear to be as fast as the
    "Unicode::UTF8" approach.

  Default IO layers and the open pragma
    If you have Perl 5.10 or later, file input/output methods ("slurp",
    "spew", etc.) and high-level handle opening methods ( "openr", "openw",
    etc. but not "filehandle") respect default encodings set by the "-C"
    switch or lexical open settings of the caller. For UTF-8, this is almost
    certainly slower than using the dedicated "_utf8" methods if you have
    Unicode::UTF8.

TYPE CONSTRAINTS AND COERCION
    A standard MooseX::Types library is available at
    MooseX::Types::Path::Tiny.

SEE ALSO
    These are other file/path utilities, which may offer a different feature
    set than "Path::Tiny".

    *   File::Fu

    *   IO::All

    *   Path::Class

    These iterators may be slightly faster than the recursive iterator in
    "Path::Tiny":

    *   Path::Iterator::Rule

    *   File::Next

    There are probably comparable, non-Tiny tools. Let me know if you want
    me to add a module to the list.

SUPPORT
  Bugs / Feature Requests
    Please report any bugs or feature requests through the issue tracker at
    <https://github.com/dagolden/path-tiny/issues>. You will be notified
    automatically of any progress on your issue.

  Source Code
    This is open source software. The code repository is available for
    public review and contribution under the terms of the license.

    <https://github.com/dagolden/path-tiny>

      git clone git://github.com/dagolden/path-tiny.git

AUTHOR
    David Golden <dagolden@cpan.org>

CONTRIBUTORS
    *   Chris Williams <bingos@cpan.org>

    *   David Steinbrunner <dsteinbrunner@pobox.com>

    *   Gabor Szabo <szabgab@cpan.org>

    *   George Hartzell <hartzell@cpan.org>

    *   Goro Fuji <gfuji@cpan.org>

    *   Karen Etheridge <ether@cpan.org>

    *   Keedi Kim <keedi@cpan.org>

    *   Michael G. Schwern <mschwern@cpan.org>

COPYRIGHT AND LICENSE
    This software is Copyright (c) 2013 by David Golden.

    This is free software, licensed under:

      The Apache License, Version 2.0, January 2004

