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Separating the 'task shell' command in a separate executable 'tasksh' and enabling command history traversal using GNU Readline

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This commit is contained in:
Haitham Gad 2013-03-09 18:59:42 -05:00 • committed by Paul Beckingham
parent b6ac337828
commit 69a23b05a9
5 changed files with 111 additions and 138 deletions
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132
src/commands/CmdShell.cpp
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@ -1,132 +0,0 @@
////////////////////////////////////////////////////////////////////////////////
// taskwarrior - a command line task list manager.
//
// Copyright 2006-2012, Paul Beckingham, Federico Hernandez.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
//
// http://www.opensource.org/licenses/mit-license.php
//
////////////////////////////////////////////////////////////////////////////////
#define L10N // Localization complete.
#include <iostream>
#include <algorithm>
#include <Color.h>
#include <Context.h>
#include <text.h>
#include <i18n.h>
#include <CmdShell.h>
extern Context context;
////////////////////////////////////////////////////////////////////////////////
CmdShell::CmdShell ()
{
_keyword = "shell";
_usage = "task shell";
_description = STRING_CMD_SHELL_USAGE;
_read_only = false;
_displays_id = true;
}
////////////////////////////////////////////////////////////////////////////////
int CmdShell::execute (std::string&)
{
// Display some kind of welcome message.
Color bold (Color::nocolor, Color::nocolor, false, true, false);
std::cout << (context.color () ? bold.colorize (PACKAGE_STRING) : PACKAGE_STRING)
<< " shell\n\n"
<< STRING_CMD_SHELL_HELP1 << "\n"
<< STRING_CMD_SHELL_HELP2 << "\n"
<< STRING_CMD_SHELL_HELP3 << "\n\n";
// Make a copy because context.clear will delete them.
std::string permanent_overrides;
std::vector <Arg>::iterator i;
for (i = context.a3.begin (); i != context.a3.end (); ++i)
{
if (i->_category == Arg::cat_rc ||
i->_category == Arg::cat_override)
{
if (i != context.a3.begin ())
permanent_overrides += " ";
permanent_overrides += i->_raw;
}
}
std::vector <std::string> quit_commands;
quit_commands.push_back ("quit");
quit_commands.push_back ("exit");
quit_commands.push_back ("bye");
std::string command;
bool keepGoing = true;
do
{
std::cout << context.config.get ("shell.prompt") << " ";
command = "";
std::getline (std::cin, command);
std::string decoratedCommand = "task " + trim (command + permanent_overrides);
// When looking for the 'quit' command, use 'command', not
// 'decoratedCommand'.
if (std::find (quit_commands.begin (), quit_commands.end (), lowerCase (command)) != quit_commands.end ())
{
keepGoing = false;
}
else
{
try
{
context.clear ();
std::vector <std::string> args;
split (args, decoratedCommand, ' ');
std::vector <std::string>::iterator arg;
for (arg = args.begin (); arg != args.end (); ++arg)
context.a3.capture (*arg);
context.initialize (0, NULL);
context.run ();
}
catch (const std::string& error)
{
std::cerr << error << "\n";
}
catch (...)
{
std::cerr << STRING_UNKNOWN_ERROR << "\n";
}
}
}
while (keepGoing && !std::cin.eof ());
// No need to repeat any overrides after the shell quits.
context.clearMessages ();
return 0;
}
////////////////////////////////////////////////////////////////////////////////

43
src/commands/CmdShell.h
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@ -1,43 +0,0 @@
////////////////////////////////////////////////////////////////////////////////
// taskwarrior - a command line task list manager.
//
// Copyright 2006-2012, Paul Beckingham, Federico Hernandez.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
//
// http://www.opensource.org/licenses/mit-license.php
//
////////////////////////////////////////////////////////////////////////////////
#ifndef INCLUDED_CMDSHELL
#define INCLUDED_CMDSHELL
#define L10N // Localization complete.
#include <string>
#include <Command.h>
class CmdShell : public Command
{
public:
CmdShell ();
int execute (std::string&);
};
#endif
////////////////////////////////////////////////////////////////////////////////