gzip.cc File Reference

Octave interface to the compression and uncompression libraries. More...

#include <cstdio>
#include <cstring>
#include <functional>
#include <list>
#include <stdexcept>
#include <string>
#include "Array.h"
#include "dir-ops.h"
#include "file-ops.h"
#include "file-stat.h"
#include "glob-match.h"
#include "lo-sysdep.h"
#include "oct-env.h"
#include "str-vec.h"
#include "Cell.h"
#include "defun-dld.h"
#include "defun-int.h"
#include "errwarn.h"
#include "ov.h"
#include "ovl.h"

Include dependency graph for gzip.cc:

Go to the source code of this file.

Classes
class	CFile
	RIIA wrapper for std::FILE*. More...

Functions
OCTAVE_EXPORT octave_value_list	Fbzip2 (const octave_value_list &, int)
OCTAVE_EXPORT octave_value_list	Fgzip (const octave_value_list &, int)
C OCTAVE_EXPORT octave_function *	Gbzip2 (const octave::dynamic_library &shl, bool relative)
C OCTAVE_EXPORT octave_function *	Ggzip (const octave::dynamic_library &shl, bool relative)
template<typename X >
string_vector	xzip (const Array< std::string > &source_patterns)
template<typename X >
string_vector	xzip (const Array< std::string > &source_patterns, const std::function< std::string(const std::string &)> &mk_dest_path)
template<typename X >
string_vector	xzip (const Array< std::string > &source_patterns, const std::string &out_dir)
template<typename X >
static octave_value_list	xzip (const std::string &fcn_name, const octave_value_list &args)

Detailed Description

Octave interface to the compression and uncompression libraries.

This was originally implemented as an m file which directly called bzip2 and gzip applications. This may look simpler but causes some issues (see bug #43431) because we have no control over the output file:

• created file is always in the same directory as the original file;
• automatically skip files that already have gz/bz2/etc extension;
• some older versions lack the –keep option.

In addition, because system() does not have a method that allows passing a list of arguments, there is the issue of having to escape filenames.

A solution is to pipe file contents into the applications instead of filenames. However, that solution causes:

missing file header with original file information;

implementing ourselves the recursive transversion of directories;

do the above in a m file which will be slow;

popen2 is frail on windows.

Definition in file gzip.cc.

Function Documentation

Fbzip2()

OCTAVE_EXPORT octave_value_list Fbzip2	(	const octave_value_list &	args,
		int	nargout
	)

Definition at line 669 of file gzip.cc.

References err_disabled_feature().

Fgzip()

OCTAVE_EXPORT octave_value_list Fgzip	(	const octave_value_list &	args,
		int	nargout
	)

Definition at line 623 of file gzip.cc.

References err_disabled_feature().

Gbzip2()

C OCTAVE_EXPORT octave_function* Gbzip2	(	const octave::dynamic_library &	shl,
		bool	relative
	)

Definition at line 669 of file gzip.cc.

Ggzip()

C OCTAVE_EXPORT octave_function* Ggzip	(	const octave::dynamic_library &	shl,
		bool	relative
	)

Definition at line 623 of file gzip.cc.

xzip() [1/4]

template<typename X >

string_vector xzip

(

const Array< std::string > &

source_patterns

)

Definition at line 545 of file gzip.cc.

xzip() [2/4]

template<typename X >

string_vector xzip	(	const Array< std::string > &	source_patterns,
		const std::function< std::string(const std::string &)> &	mk_dest_path
	)

Definition at line 479 of file gzip.cc.

References concat(), get_dirlist(), glob_match::glob(), Array< T, Alloc >::numel(), string_vector::numel(), tilde_expand(), and unlink().

xzip() [3/4]

template<typename X >

string_vector xzip	(	const Array< std::string > &	source_patterns,
		const std::string &	out_dir
	)

Definition at line 558 of file gzip.cc.

References basename(), concat(), dir_sep_str(), and mkdir().

xzip() [4/4]

template<typename X >

static octave_value_list xzip ( const std::string &  fcn_name, const octave_value_list &  args  )

static

Definition at line 581 of file gzip.cc.

References octave_value_list::length(), octave_value(), and print_usage().