NAME
Dpkg::Path - some common path handling functions
DESCRIPTION
It provides some functions to handle various path.
METHODS
get_pkg_root_dir($file)
This function will scan upwards the hierarchy of directory to
find out the directory which contains the "DEBIAN" sub-
directory and it will return its path. This directory is the
root directory of a package being built.
If no DEBIAN subdirectory is found, it will return undef.
relative_to_pkg_root($file)
Returns the filename relative to get_pkg_root_dir($file).
guess_pkg_root_dir($file)
This function tries to guess the root directory of the package
build tree. It will first use get_pkg_root_dir(), but it will
fallback to a more imprecise check: namely it will use the
parent directory that is a sub-directory of the debian
directory.
It can still return undef if a file outside of the debian sub-
directory is provided.
check_files_are_the_same($file1, $file2, $resolve_symlink)
This function verifies that both files are the same by checking
that the device numbers and the inode numbers returned by
stat()/lstat() are the same. If $resolve_symlink is true then
stat() is used, otherwise lstat() is used.
canonpath($file)
This function returns a cleaned path. It simplifies double //,
and remove /./ and /../ intelligently. For /../ it simplifies
the path only if the previous element is not a symlink. Thus it
should only be used on real filenames.
$newpath = resolve_symlink($symlink)
Return the filename of the file pointed by the symlink. The new
name is canonicalized by canonpath().
my $cmdpath = find_command($command)
Return the path of the command if available on an absolute or
relative path or on the $PATH, undef otherwise.
AUTHOR
Raphal Hertzog <hertzog@debian.org>.