endeavr_marcel/Tarstats-pp
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this added output to text file and proper parsing of command line arguments. this also cleaned up some more stuff.

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This commit is contained in:
Marcel Nowicki
2022-02-10 23:08:59 +01:00
parent bf6f224a23
commit 0114829d5b
4 changed files with 122 additions and 54 deletions
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141
main.cpp
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@@ -3,7 +3,6 @@
*/
#include <iostream>
#include <fstream>
#include <string>
#include <vector>
#include <map>
@@ -12,71 +11,109 @@
#include "tarfunc.h"
int main(int argc, char** argv) {
// Trivial check for arguments.
if (argc < 2) {
tar::printhelp();
return 9;
}
// GENERAL VARIABLES
//count the types of all items
std::map<std::string, uintmax_t> typecount{
{tarconstant::typeFile, 0}, {tarconstant::typeDir, 0}, {tarconstant::typeSym, 0},
{tarconstant::typeHard, 0}, {tarconstant::typeOther, 0}
};
uint64_t sizeof_allfiles{}; // total size of all files in the archive
// Trivial check for arguments. Errorprone and has to be changed.
if (argc < 2) {
std::cout << tarconstant::helptext << '\n';
return 9;
// Load command line parameters into vector, read them and set variables
std::vector<std::string> cmdparam{};
for (int i = 1; i < argc; i++){
cmdparam.emplace_back(argv[i]);
}
// Getting name from argument lists on startup. Trivial and errorprone. Placeholder for now.
std::string archiveFilename(argv[1]);
bool toFile = false;
bool toJSON = false;
for (int i = 0; i < argc; i++){
std::cout << argv[i] << '\n';
std::vector<std::string> archiveFilename {};
for (auto i : cmdparam) {
if (i[0] != '-' && i.size() > 1) {
archiveFilename.push_back(i);
}
if (i[0] == '-') {
for (auto j : i) {
switch (j) {
case 'j':
toJSON = true;
break;
case 'f':
toFile = true;
break;
case 'h':
tar::printhelp();
return 9;
case '-':
break;
default:
std::cout << "Invalid optional argument '" << j << "'!" << '\n' << '\n';
tar::printhelp();
return 9;
}
}
}
}
//Open tar File.
std::ifstream file(archiveFilename, std::ios::binary);
if(!file) {
std::cout << "Error opening file!" << '\n' << '\n';
std::cout << tarconstant::helptext << '\n';
return 9;
}
for (auto &archiveName : archiveFilename) {
//count the types of all items
std::map<std::string, uintmax_t> typecount{
{tarconstant::typeFile, 0}, {tarconstant::typeDir, 0}, {tarconstant::typeSym, 0},
{tarconstant::typeHard, 0}, {tarconstant::typeOther, 0}
};
if (!tar::validTar(file)) {
std::cout << archiveFilename << " is not a valid tar file for tarstats-pp" << '\n';
return 9;
}
uint64_t sizeof_allfiles{}; // total size of all files in the archive
while (file) {
//Read header of next item in tar archive
char *headbuffer = new char[tarconstant::blocksize];
file.read(headbuffer, tarconstant::blocksize);
// tar file ends with 2 512byte blocks of 0. As no block should ever be 0 unless at the end, we check only once.
if (tar::eof(headbuffer)) {
break;
//Open tar File.
std::ifstream file(archiveName, std::ios::binary);
if (!file) {
std::cout << "Error opening file " << archiveName << "!" << '\n' << '\n';
tar::printhelp();
return 9;
}
// Read type of item
std::string itemtype = tar::getitemtype(headbuffer[tarconstant::itemtypeByte]);
typecount[itemtype] += 1;
// read itemsize and add to total
sizeof_allfiles += tar::getitemsize(headbuffer);
// ignore file content. we want to get to the next header. item types != FILE have no content blocks (0 byte)
if (tar::getitemsize(headbuffer)!=0) {
file.ignore((tar::getitemsize(headbuffer) / tarconstant::blocksize)
* tarconstant::blocksize + tarconstant::blocksize);
if (!tar::validTar(file)) {
std::cout << "!!!!!!!" << '\n';
std::cout << archiveName << " is not a valid tar file for tarstats-pp" << '\n';
std::cout << "!!!!!!!" << '\n' << '\n';
}
else {
while (file) {
//Read header of next item in tar archive
char *headbuffer = new char[tarconstant::blocksize];
file.read(headbuffer, tarconstant::blocksize);
// empty the headerbuffer
delete[] headbuffer;
// tar file ends with 2 512byte blocks of 0. As no block should ever be 0 unless at the end, we check only once.
if (tar::eof(headbuffer)) {
break;
}
// Read type of item
std::string itemtype = tar::getitemtype(headbuffer[tarconstant::itemtypeByte]);
typecount[itemtype] += 1;
// read itemsize and add to total
sizeof_allfiles += tar::getitemsize(headbuffer);
// ignore file content. we want to get to the next header. item types != FILE have no content blocks (0 byte)
if (tar::getitemsize(headbuffer) != 0) {
file.ignore((tar::getitemsize(headbuffer) / tarconstant::blocksize)
* tarconstant::blocksize + tarconstant::blocksize);
}
// empty the headerbuffer
delete[] headbuffer;
}
file.close();
std::cout << toJSON << '\n';
tar::consolestats(typecount, std::filesystem::file_size(archiveName), sizeof_allfiles);
if (toFile) {
tar::txtfilestats(typecount, std::filesystem::file_size(archiveName), sizeof_allfiles,
archiveName);
}
}
}
file.close();
tar::consolestats(typecount, std::filesystem::file_size(archiveFilename), sizeof_allfiles);
return 0;
}

5
tarconst.h
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@@ -34,7 +34,10 @@ namespace tarconstant {
"optional arguments\n"
"-h this helptext\n"
"-j stats in JSON format printed to stdout\n"
"-f print stats to file <tarfilename>.txt or .json if -j invoked"};
"-f print stats to file <tarfilename>.txt or .json if -j invoked\n\n"
"Find more information as well as full source at github.com/blindi0815/Tarstats-pp."
"This software is as is under a GPL 3.0 license.\n\n"
"Written by Marcel Nowicki - github.com/blindi0815"};
}
#endif //TARSTATS___TARCONST_H

20
tarfunc.cpp
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@@ -61,10 +61,30 @@ std::string tar::getitemtype(char &n) {
}
}
// writes stats to console in default style
void tar::consolestats (std::map<std::string, uintmax_t> &typecount, uintmax_t tarfilesize, uintmax_t sizeofall) {
std::cout << "Archive size: " << tarfilesize << " Bytes"<< '\n';
std::cout << "Size of all items: " << sizeofall << " Bytes" << '\n' << '\n';
for (auto &i : typecount) {
std::cout << i.first <<": " << i.second << '\n';
}
}
// writes default console output to txt file
void tar::txtfilestats (std::map<std::string, uintmax_t> &typecount, uintmax_t tarfilesize, uintmax_t sizeofall,
std::string archiveName) {
std::string txtname = archiveName + ".txt";
std::ofstream txtfile(txtname);
txtfile << "Archive size: " << tarfilesize << " Bytes"<< std::endl;
txtfile << "Size of all items: " << sizeofall << " Bytes" << std::endl << std::endl;
for (auto &i : typecount) {
txtfile << i.first <<": " << i.second << std::endl;
}
txtfile.close();
std::cout << "Stats written to " << txtname << '\n' << '\n';
}
// print out helpertext
void tar::printhelp(){
std::cout << tarconstant::helptext << '\n' << '\n';
}

10
tarfunc.h
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@@ -6,6 +6,7 @@
#include <fstream>
#include <map>
#include <string>
#include "tarconst.h"
#ifndef TARSTATS___TARFUNC_H
@@ -22,8 +23,15 @@ namespace tar {
// gets type of an item
std::string getitemtype(char &n);
//
// to write stats to console in default style
void consolestats (std::map<std::string, uintmax_t> &typecount, uintmax_t tarfilesize, uintmax_t sizeofall);
// to write default console output to txt file
void txtfilestats (std::map<std::string, uintmax_t> &typecount, uintmax_t tarfilesize, uintmax_t sizeofall,
std::string archiveName);
// print out helpertext
void printhelp();
}