dpkg::path(3)

NAME

Dpkg::Path - some common path handling functions

It provides some functions to handle various path.

get_pkg_root_dir($file): This function will scan upwards the hierarchy of directory to
find out the directory which contains the "DEBIAN" subdirectory and it will return its path. This directory is the
root directory of a package being built.; If no DEBIAN subdirectory is found, it will return undef.
relative_to_pkg_root($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 subdirectory 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().

Raphal Hertzog <hertzog@debian.org>.