mirror of https://github.com/tstack/lnav
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
137 lines
3.5 KiB
C++
137 lines
3.5 KiB
C++
/**
|
|
* Copyright (c) 2007-2012, Timothy Stack
|
|
*
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* * Redistributions of source code must retain the above copyright notice, this
|
|
* list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
* * Neither the name of Timothy Stack nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND ANY
|
|
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
|
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
|
|
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
|
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
|
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
|
|
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
|
|
#include <fstream>
|
|
#include <iostream>
|
|
|
|
#include "pcrepp.hh"
|
|
#include "data_scanner.hh"
|
|
#include "data_parser.hh"
|
|
|
|
using namespace std;
|
|
|
|
const char *TMP_NAME = "scanned.tmp";
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
int c, retval = EXIT_SUCCESS;
|
|
bool prompt = false;
|
|
|
|
while ((c = getopt(argc, argv, "p")) != -1) {
|
|
switch (c) {
|
|
case 'p':
|
|
prompt = true;
|
|
break;
|
|
default:
|
|
retval = EXIT_FAILURE;
|
|
break;
|
|
}
|
|
}
|
|
|
|
argc -= optind;
|
|
argv += optind;
|
|
|
|
if (retval != EXIT_SUCCESS) {
|
|
}
|
|
else if (argc != 1) {
|
|
fprintf(stderr, "error: expecting a single file name argument\n");
|
|
retval = EXIT_FAILURE;
|
|
}
|
|
else {
|
|
istream *in;
|
|
string dstname;
|
|
FILE *out;
|
|
|
|
if (strcmp(argv[0], "-") == 0) {
|
|
in = &cin;
|
|
}
|
|
else {
|
|
ifstream *ifs = new ifstream(argv[0]);
|
|
|
|
if (!ifs->is_open()) {
|
|
fprintf(stderr, "error: unable to open file\n");
|
|
retval = EXIT_FAILURE;
|
|
}
|
|
else {
|
|
in = ifs;
|
|
}
|
|
}
|
|
|
|
if (retval == EXIT_FAILURE) {
|
|
}
|
|
else if ((out = fopen(TMP_NAME, "w")) == NULL) {
|
|
fprintf(stderr, "error: unable to temporary file for writing\n");
|
|
retval = EXIT_FAILURE;
|
|
}
|
|
else {
|
|
char cmd[2048];
|
|
string line;
|
|
int rc;
|
|
|
|
getline(*in, line);
|
|
if (strcmp(argv[0], "-") == 0) {
|
|
line = " " + line;
|
|
}
|
|
|
|
data_scanner ds(line.substr(13));
|
|
data_parser dp(&ds);
|
|
|
|
dp.parse();
|
|
dp.print(out, dp.dp_pairs);
|
|
fclose(out);
|
|
|
|
sprintf(cmd, "diff -u %s %s", argv[0], TMP_NAME);
|
|
rc = system(cmd);
|
|
if (rc != 0) {
|
|
if (prompt) {
|
|
char resp;
|
|
|
|
printf("Would you like to update the original file? (y/N) ");
|
|
fflush(stdout);
|
|
if (scanf("%c", &resp) == 1 && resp == 'y')
|
|
rename(TMP_NAME, argv[0]);
|
|
else
|
|
retval = EXIT_FAILURE;
|
|
}
|
|
else {
|
|
fprintf(stderr, "error: mismatch\n");
|
|
retval = EXIT_FAILURE;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return retval;
|
|
}
|