Dpkg::Compression - simple database of available compression methods
This modules provides a few public functions and a public regex to interact with the set of supported compression methods.
Returns a list of supported compression methods (sorted alphabetically).
Returns a boolean indicating whether the give compression method is known and supported.
Returns the requested property of the compression method. Returns undef if either the property or the compression method doesn't exist. Valid properties currently include "file_ext" for the file extension, "default_level" for the default compression level, "comp_prog" for the name of the compression program and "decomp_prog" for the name of the decompression program.
Returns the compression method that is likely used on the indicated filename based on its file extension.
Returns a regex that matches a file extension of a file compressed with one of the supported compression methods.
Return the default compression method. It is "xz" unless compression_set_default has been used to change it.
compression_set_default
Change the default compression method. Errors out if the given compression method is not supported.
Return the default compression level used when compressing data. It's "9" for "gzip" and "bzip2", "6" for "xz" and "lzma", unless compression_set_default_level has been used to change it.
compression_set_default_level
Change the default compression level. Passing undef as the level will reset it to the compressor specific default, otherwise errors out if the level is not valid (see compression_is_valid_level).
compression_is_valid_level
Returns a boolean indicating whether $level is a valid compression level (it must be either a number between 1 and 9 or "fast" or "best")
Hide variables: $default_compression, $default_compression_level and $compression_re_file_ext.
New function: compression_get_file_extension_regex()
Deprecated variables: $default_compression, $default_compression_level and $compression_re_file_ext
Default compression level is not global any more, it is per compressor type.
Mark the module as public.
To install Dpkg, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Dpkg
CPAN shell
perl -MCPAN -e shell install Dpkg
For more information on module installation, please visit the detailed CPAN module installation guide.