mirror of
https://github.com/GothenburgBitFactory/taskwarrior.git
synced 2025-06-26 10:54:26 +02:00
406 lines
11 KiB
C++
406 lines
11 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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// task - a command line task list manager.
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//
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// Copyright 2006 - 2009, Paul Beckingham.
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// All rights reserved.
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//
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// This program is free software; you can redistribute it and/or modify it under
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// the terms of the GNU General Public License as published by the Free Software
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// Foundation; either version 2 of the License, or (at your option) any later
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// version.
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//
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// This program is distributed in the hope that it will be useful, but WITHOUT
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// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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// FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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// details.
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//
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// You should have received a copy of the GNU General Public License along with
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// this program; if not, write to the
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//
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// Free Software Foundation, Inc.,
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// 51 Franklin Street, Fifth Floor,
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// Boston, MA
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// 02110-1301
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// USA
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//
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////////////////////////////////////////////////////////////////////////////////
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#include <iostream>
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#include <fstream>
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#include <vector>
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#include <string>
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#include <sys/types.h>
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#include <sys/time.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <string.h>
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#include <pwd.h>
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#include <errno.h>
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#include "Date.h"
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#include "Table.h"
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#include "task.h"
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#include "../auto.h"
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////////////////////////////////////////////////////////////////////////////////
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// Uses std::getline, because std::cin eats leading whitespace, and that means
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// that if a newline is entered, std::cin eats it and never returns from the
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// "std::cin >> answer;" line, but it does disply the newline. This way, with
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// std::getline, the newline can be detected, and the prompt re-written.
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bool confirm (const std::string& question)
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{
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std::string answer;
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do
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{
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std::cout << question << " (y/n) ";
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std::getline (std::cin, answer);
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answer = lowerCase (trim (answer));
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if (answer == "\n") std::cout << "newline\n";
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}
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while (answer != "y" &&
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answer != "ye" &&
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answer != "yes" &&
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answer != "n" &&
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answer != "no");
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return (answer == "y" || answer == "ye" || answer == "yes") ? true : false;
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}
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////////////////////////////////////////////////////////////////////////////////
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void delay (float f)
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{
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struct timeval t;
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t.tv_sec = (int) f;
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t.tv_usec = int ((f - (int)f) * 1000000);
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select (0, NULL, NULL, NULL, &t);
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}
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////////////////////////////////////////////////////////////////////////////////
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// Convert a quantity in seconds to a more readable format.
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// Long version:
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// 0-59 S seconds
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// 60-3599 M minutes, S seconds
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// 3600-86399 H hours, M minutes, S seconds
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// 86400- D days, H hours, M minutes, S seconds
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// Short version:
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// 0-59 S seconds
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// 60-3599 M minutes, S seconds
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// 3600-86399 H hours, M minutes, S seconds
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//
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void formatTimeDeltaDays (std::string& output, time_t delta)
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{
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char formatted[24];
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float days = (float) delta / 86400.0;
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if (days > 365)
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sprintf (formatted, "%.1f yrs", (days / 365.2422));
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else if (days > 84)
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sprintf (formatted, "%1d mth%s",
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(int) (days / 30.6),
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((int) (days / 30.6) == 1 ? "" : "s"));
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else if (days > 13)
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sprintf (formatted, "%d wk%s",
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(int) (days / 7.0),
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((int) (days / 7.0) == 1 ? "" : "s"));
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else if (days > 5.0)
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sprintf (formatted, "%d day%s",
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(int) days,
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((int) days == 1 ? "" : "s"));
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else if (days > 1.0)
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sprintf (formatted, "%.1f days", days);
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else if (days * 24 > 1.0)
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sprintf (formatted, "%d hr%s",
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(int) (days * 24.0),
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((int) (days * 24.0) == 1 ? "" : "s"));
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else if (days * 24 * 60 > 1)
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sprintf (formatted, "%d min%s",
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(int) (days * 24 * 60),
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((int) (days * 24 * 60) == 1 ? "" : "s"));
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else if (days * 24 * 60 * 60 > 1)
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sprintf (formatted, "%d sec%s",
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(int) (days * 24 * 60 * 60),
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((int) (days * 24 * 60 * 60) == 1 ? "" : "s"));
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else
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strcpy (formatted, "-");
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output = formatted;
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}
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////////////////////////////////////////////////////////////////////////////////
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std::string formatSeconds (time_t delta)
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{
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char formatted[24];
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float days = (float) delta / 86400.0;
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if (days > 365)
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sprintf (formatted, "%.1f yrs", (days / 365.2422));
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else if (days > 84)
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sprintf (formatted, "%1d mth%s",
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(int) (days / 30.6),
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((int) (days / 30.6) == 1 ? "" : "s"));
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else if (days > 13)
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sprintf (formatted, "%d wk%s",
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(int) (days / 7.0),
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((int) (days / 7.0) == 1 ? "" : "s"));
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else if (days > 5.0)
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sprintf (formatted, "%d day%s",
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(int) days,
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((int) days == 1 ? "" : "s"));
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else if (days > 1.0)
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sprintf (formatted, "%.1f days", days);
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else if (days * 24 > 1.0)
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sprintf (formatted, "%d hr%s",
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(int) (days * 24.0),
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((int) (days * 24) == 1 ? "" : "s"));
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else if (days * 24 * 60 > 1)
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sprintf (formatted, "%d min%s",
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(int) (days * 24 * 60),
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((int) (days * 24 * 60) == 1 ? "" : "s"));
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else if (days * 24 * 60 * 60 > 1)
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sprintf (formatted, "%d sec%s",
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(int) (days * 24 * 60 * 60),
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((int) (days * 24 * 60 * 60) == 1 ? "" : "s"));
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else
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strcpy (formatted, "-");
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return std::string (formatted);
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}
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////////////////////////////////////////////////////////////////////////////////
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int autoComplete (
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const std::string& partial,
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const std::vector<std::string>& list,
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std::vector<std::string>& matches)
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{
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matches.erase (matches.begin (), matches.end ());
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// Handle trivial case.
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unsigned int length = partial.length ();
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if (length)
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{
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for (unsigned int i = 0; i < list.size (); ++i)
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{
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// Special case where there is an exact match.
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if (partial == list[i])
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{
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matches.erase (matches.begin (), matches.end ());
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matches.push_back (list[i]);
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return 1;
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}
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// Maintain a list of partial matches.
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if (length <= list[i].length () &&
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! strncmp (partial.c_str (), list[i].c_str (), length))
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matches.push_back (list[i]);
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}
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}
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return matches.size ();
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}
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////////////////////////////////////////////////////////////////////////////////
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#ifdef HAVE_UUID
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#include <uuid/uuid.h>
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const std::string uuid ()
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{
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uuid_t id;
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uuid_generate (id);
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char buffer[100] = {0};
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uuid_unparse_lower (id, buffer);
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// Bug found by Steven de Brouwer.
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buffer[36] = '\0';
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return std::string (buffer);
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}
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////////////////////////////////////////////////////////////////////////////////
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#else
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#warning "Using custom UUID generator"
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#include <stdlib.h>
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static char randomHexDigit ()
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{
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static char digits[] = "0123456789abcdef";
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#ifdef HAVE_RANDOM
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// random is better than rand.
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return digits[random () % 16];
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#else
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return digits[rand () % 16];
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#endif
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}
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////////////////////////////////////////////////////////////////////////////////
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const std::string uuid ()
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{
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// xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
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char id [48] = {0};
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id[0] = randomHexDigit ();
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id[1] = randomHexDigit ();
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id[2] = randomHexDigit ();
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id[3] = randomHexDigit ();
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id[4] = randomHexDigit ();
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id[5] = randomHexDigit ();
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id[6] = randomHexDigit ();
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id[7] = randomHexDigit ();
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id[8] = '-';
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id[9] = randomHexDigit ();
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id[10] = randomHexDigit ();
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id[11] = randomHexDigit ();
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id[12] = randomHexDigit ();
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id[13] = '-';
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id[14] = randomHexDigit ();
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id[15] = randomHexDigit ();
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id[16] = randomHexDigit ();
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id[17] = randomHexDigit ();
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id[18] = '-';
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id[19] = randomHexDigit ();
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id[20] = randomHexDigit ();
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id[21] = randomHexDigit ();
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id[22] = randomHexDigit ();
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id[23] = '-';
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id[24] = randomHexDigit ();
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id[25] = randomHexDigit ();
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id[26] = randomHexDigit ();
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id[27] = randomHexDigit ();
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id[28] = randomHexDigit ();
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id[29] = randomHexDigit ();
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id[30] = randomHexDigit ();
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id[31] = randomHexDigit ();
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id[32] = randomHexDigit ();
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id[33] = randomHexDigit ();
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id[34] = randomHexDigit ();
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id[35] = randomHexDigit ();
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id[36] = '\0';
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return id;
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}
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#endif
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////////////////////////////////////////////////////////////////////////////////
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std::string expandPath (const std::string& in)
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{
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std::string copy = in;
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std::string::size_type tilde;
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if ((tilde = copy.find ("~/")) != std::string::npos)
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{
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struct passwd* pw = getpwuid (getuid ());
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copy.replace (tilde, 1, pw->pw_dir);
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}
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else if ((tilde = copy.find ("~")) != std::string::npos)
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{
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std::string::size_type slash;
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if ((slash = copy.find ("/", tilde)) != std::string::npos)
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{
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std::string name = copy.substr (tilde + 1, slash - tilde - 1);
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struct passwd* pw = getpwnam (name.c_str ());
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if (pw)
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copy.replace (tilde, slash - tilde, pw->pw_dir);
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}
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}
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return copy;
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}
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////////////////////////////////////////////////////////////////////////////////
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// On Solaris no flock function exists.
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#ifdef SOLARIS
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int flock (int fd, int operation)
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{
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struct flock fl;
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switch (operation & ~LOCK_NB)
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{
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case LOCK_SH:
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fl.l_type = F_RDLCK;
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break;
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case LOCK_EX:
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fl.l_type = F_WRLCK;
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break;
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case LOCK_UN:
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fl.l_type = F_UNLCK;
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break;
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default:
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errno = EINVAL;
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return -1;
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}
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fl.l_whence = 0;
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fl.l_start = 0;
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fl.l_len = 0;
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return fcntl (fd, (operation & LOCK_NB) ? F_SETLK : F_SETLKW, &fl);
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}
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#endif
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////////////////////////////////////////////////////////////////////////////////
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bool slurp (
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const std::string& file,
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std::vector <std::string>& contents,
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bool trimLines /* = false */)
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{
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contents.clear ();
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std::ifstream in (file.c_str ());
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if (in.good ())
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{
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std::string line;
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while (getline (in, line))
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{
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if (trimLines) line = trim (line);
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contents.push_back (line);
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}
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in.close ();
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return true;
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}
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return false;
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}
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////////////////////////////////////////////////////////////////////////////////
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bool slurp (
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const std::string& file,
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std::string& contents,
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bool trimLines /* = false */)
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{
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contents = "";
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std::ifstream in (file.c_str ());
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if (in.good ())
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{
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std::string line;
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while (getline (in, line))
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{
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if (trimLines) line = trim (line);
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contents += line + "\n";
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}
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in.close ();
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return true;
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}
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return false;
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}
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////////////////////////////////////////////////////////////////////////////////
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void spit (const std::string& file, const std::string& contents)
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{
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std::ofstream out (file.c_str ());
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if (out.good ())
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{
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out << contents;
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out.close ();
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}
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else
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throw std::string ("Could not write file '") + file + "'";
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}
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////////////////////////////////////////////////////////////////////////////////
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