06 Dec 2021 20:23:10 UTC
- Distribution: Dpkg
- Module version: 1.05
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- License: gpl_2
- Perl: v5.28.1
- Activity24 month
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Dpkg::Path - some common path handling functions
It provides some functions to handle various path.
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.
Returns the filename relative to get_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.
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 $resolve_symlink is true then stat() is used, otherwise lstat() is used.
This function returns a cleaned path. It simplifies double //, and remove /./ and /../ intelligently. For /../ it simplifies the path only if the previous element is not a symlink. Thus it should only be used on real filenames.
Return the filename of the file pointed by the symlink. The new name is canonicalized by canonpath().
- check_directory_traversal($basedir, $dir)
This function verifies that the directory $dir does not contain any symlink that goes beyond $basedir (which should be either equal or a parent of $dir).
- $cmdpath = find_command($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.
New function: check_directory_traversal().
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.