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109 lines
2.8 KiB
C++
109 lines
2.8 KiB
C++
/**
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* Copyright (c) 2013, Timothy Stack
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* * Neither the name of Timothy Stack nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* @file lnav_util.cc
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*
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* Dumping ground for useful functions with no other home.
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*/
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#include "lnav_util.hh"
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#include <stdio.h>
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#include <sys/stat.h>
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#include "ansi_scrubber.hh"
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#include "base/result.h"
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#include "config.h"
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#include "fmt/format.h"
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#include "view_curses.hh"
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bool
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change_to_parent_dir()
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{
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bool retval = false;
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char cwd[3] = "";
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if (getcwd(cwd, sizeof(cwd)) == nullptr) {
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/* perror("getcwd"); */
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}
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if (strcmp(cwd, "/") != 0) {
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if (chdir("..") == -1) {
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perror("chdir('..')");
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} else {
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retval = true;
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}
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}
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return retval;
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}
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bool
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is_dev_null(const struct stat& st)
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{
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struct stat null_stat;
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stat("/dev/null", &null_stat);
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return st.st_dev == null_stat.st_dev && st.st_ino == null_stat.st_ino;
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}
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bool
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is_dev_null(int fd)
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{
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struct stat fd_stat;
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fstat(fd, &fd_stat);
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return is_dev_null(fd_stat);
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}
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std::string
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ok_prefix(std::string msg)
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{
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if (msg.empty()) {
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return msg;
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}
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return std::string(ANSI_COLOR(COLOR_GREEN) "\u2714" ANSI_NORM " ") + msg;
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}
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std::string
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err_prefix(const std::string msg)
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{
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if (msg.empty()) {
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return msg;
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}
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return std::string(ANSI_COLOR(COLOR_RED) "\u2718" ANSI_NORM " ") + msg;
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}
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Result<std::string, std::string>
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err_to_ok(const std::string msg)
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{
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return Ok(err_prefix(msg));
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}
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