diff options
Diffstat (limited to 'list.cc')
| -rw-r--r-- | list.cc | 121 |
1 files changed, 121 insertions, 0 deletions
@@ -0,0 +1,121 @@ +/* Plzip - Parallel compressor compatible with lzip + Copyright (C) 2009-2017 Antonio Diaz Diaz. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +#define _FILE_OFFSET_BITS 64 + +#include <cstdio> +#include <cstring> +#include <string> +#include <vector> +#include <stdint.h> +#include <unistd.h> +#include <sys/stat.h> + +#include "lzip.h" +#include "file_index.h" + + +namespace { + +void list_line( const unsigned long long uncomp_size, + const unsigned long long comp_size, + const char * const input_filename ) + { + if( uncomp_size > 0 ) + std::printf( "%15llu %15llu %6.2f%% %s\n", uncomp_size, comp_size, + 100.0 * ( 1.0 - ( (double)comp_size / uncomp_size ) ), + input_filename ); + else + std::printf( "%15llu %15llu -INF%% %s\n", uncomp_size, comp_size, + input_filename ); + } + +} // end namespace + + +int list_files( const std::vector< std::string > & filenames, + const bool ignore_trailing ) + { + unsigned long long total_comp = 0, total_uncomp = 0; + int files = 0, retval = 0; + bool first_post = true; + bool stdin_used = false; + for( unsigned i = 0; i < filenames.size(); ++i ) + { + const bool from_stdin = ( filenames[i] == "-" ); + if( from_stdin ) { if( stdin_used ) continue; else stdin_used = true; } + const char * const input_filename = + from_stdin ? "(stdin)" : filenames[i].c_str(); + struct stat in_stats; // not used + const int infd = from_stdin ? STDIN_FILENO : + open_instream( input_filename, &in_stats, true, true ); + if( infd < 0 ) { if( retval < 1 ) retval = 1; continue; } + + const File_index file_index( infd, ignore_trailing ); + close( infd ); + if( file_index.retval() != 0 ) + { + show_file_error( input_filename, file_index.error().c_str() ); + if( retval < file_index.retval() ) retval = file_index.retval(); + continue; + } + if( verbosity >= 0 ) + { + const unsigned long long udata_size = file_index.udata_size(); + const unsigned long long cdata_size = file_index.cdata_size(); + total_comp += cdata_size; total_uncomp += udata_size; ++files; + if( first_post ) + { + first_post = false; + if( verbosity >= 1 ) std::fputs( " dict memb trail ", stdout ); + std::fputs( " uncompressed compressed saved name\n", stdout ); + } + if( verbosity >= 1 ) + { + unsigned dictionary_size = 0; + for( long i = 0; i < file_index.members(); ++i ) + dictionary_size = + std::max( dictionary_size, file_index.dictionary_size( i ) ); + const long long trailing_size = file_index.file_size() - cdata_size; + std::printf( "%s %5ld %6lld ", format_ds( dictionary_size ), + file_index.members(), trailing_size ); + } + list_line( udata_size, cdata_size, input_filename ); + + if( verbosity >= 2 && file_index.members() > 1 ) + { + std::fputs( " member data_pos data_size member_pos member_size\n", stdout ); + for( long i = 0; i < file_index.members(); ++i ) + { + const Block & db = file_index.dblock( i ); + const Block & mb = file_index.mblock( i ); + std::printf( "%5ld %15llu %15llu %15llu %15llu\n", + i + 1, db.pos(), db.size(), mb.pos(), mb.size() ); + } + first_post = true; // reprint heading after list of members + } + std::fflush( stdout ); + } + } + if( verbosity >= 0 && files > 1 ) + { + if( verbosity >= 1 ) std::fputs( " ", stdout ); + list_line( total_uncomp, total_comp, "(totals)" ); + std::fflush( stdout ); + } + return retval; + } |