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Dpkg::Path(3perl) libdpkg-perl Dpkg::Path(3perl)

Dpkg::Path - some common path handling functions

It provides some functions to handle various path.

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().
$cmdpath = find_command($command)
Return the path of the command if defined and available on an absolute or relative path or on the $PATH, undef otherwise.
$control_file = get_control_path($pkg, $filetype)
Return the path of the control file of type $filetype for the given package.
@control_files = get_control_path($pkg)
Return the path of all available control files for the given package.
$file = find_build_file($basename)
Selects the right variant of the given file: the arch-specific variant ("$basename.$arch") has priority over the OS-specific variant ("$basename.$os") which has priority over the default variant ("$basename"). If none of the files exists, then it returns undef.
@files = find_build_file($basename)
Return the available variants of the given file. Returns an empty list if none of the files exists.

Update semantics: find_command() now handles an empty or undef argument.

New function: find_build_file()

New function: get_control_path()

New function: find_command()

Mark the module as public.
2019-04-19 1.19.7

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