Improved GC and Shadow File Handling
- Every command now returns an output string, or at least has an opportunity to do so. - TDB::gc is only performed a) when allowed, and b) when the command will display line numbers. - updateShadowFile is only performed when a) shadow updates are allowed, and either b) when a command is guaranteed to have modified a task or c) when TDB:gc has already made changes.
This commit is contained in:
Paul Beckingham
150
src/task.cpp
150
src/task.cpp
@@ -27,6 +27,7 @@
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#include <iostream>
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#include <iomanip>
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#include <fstream>
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#include <sstream>
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#include <sys/types.h>
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#include <stdio.h>
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#include <string.h>
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@@ -47,8 +48,9 @@
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#endif
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////////////////////////////////////////////////////////////////////////////////
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static void shortUsage (Config& conf)
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static std::string shortUsage (Config& conf)
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{
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std::stringstream out;
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Table table;
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int width = conf.get ("defaultwidth", 80);
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#ifdef HAVE_LIBNCURSES
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@@ -192,48 +194,51 @@ static void shortUsage (Config& conf)
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table.addCell (row, 2, description);
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}
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std::cout << table.render ()
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<< std::endl
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<< "See http://www.beckingham.net/task.html for the latest releases and a "
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<< "full tutorial. New releases containing fixes and enhancements are "
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<< "made frequently."
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<< std::endl
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<< std::endl;
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out << table.render ()
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<< std::endl
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<< "See http://www.beckingham.net/task.html for the latest releases and a "
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<< "full tutorial. New releases containing fixes and enhancements are "
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<< "made frequently."
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<< std::endl
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<< std::endl;
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return out.str ();
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}
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////////////////////////////////////////////////////////////////////////////////
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static void longUsage (Config& conf)
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static std::string longUsage (Config& conf)
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{
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shortUsage (conf);
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std::stringstream out;
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out << shortUsage (conf)
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<< "ID is the numeric identifier displayed by the 'task list' command." << "\n"
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<< "\n"
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<< "Tags are arbitrary words, any quantity:" << "\n"
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<< " +tag The + means add the tag" << "\n"
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<< " -tag The - means remove the tag" << "\n"
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<< "\n"
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<< "Attributes are:" << "\n"
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<< " project: Project name" << "\n"
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<< " priority: Priority" << "\n"
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<< " due: Due date" << "\n"
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<< " recur: Recurrence frequency" << "\n"
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<< " until: Recurrence end date" << "\n"
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<< " fg: Foreground color" << "\n"
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<< " bg: Background color" << "\n"
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<< " rc: Alternate .taskrc file" << "\n"
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<< "\n"
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<< "Any command or attribute name may be abbreviated if still unique:" << "\n"
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<< " task list project:Home" << "\n"
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<< " task li pro:Home" << "\n"
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<< "\n"
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<< "Some task descriptions need to be escaped because of the shell:" << "\n"
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<< " task add \"quoted ' quote\"" << "\n"
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<< " task add escaped \\' quote" << "\n"
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<< "\n"
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<< "Many characters have special meaning to the shell, including:" << "\n"
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<< " $ ! ' \" ( ) ; \\ ` * ? { } [ ] < > | & % # ~" << "\n"
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<< std::endl;
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std::cout
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<< "ID is the numeric identifier displayed by the 'task list' command." << "\n"
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<< "\n"
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<< "Tags are arbitrary words, any quantity:" << "\n"
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<< " +tag The + means add the tag" << "\n"
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<< " -tag The - means remove the tag" << "\n"
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<< "\n"
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<< "Attributes are:" << "\n"
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<< " project: Project name" << "\n"
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<< " priority: Priority" << "\n"
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<< " due: Due date" << "\n"
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<< " recur: Recurrence frequency" << "\n"
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<< " until: Recurrence end date" << "\n"
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<< " fg: Foreground color" << "\n"
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<< " bg: Background color" << "\n"
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<< " rc: Alternate .taskrc file" << "\n"
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<< "\n"
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<< "Any command or attribute name may be abbreviated if still unique:" << "\n"
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<< " task list project:Home" << "\n"
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<< " task li pro:Home" << "\n"
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<< "\n"
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<< "Some task descriptions need to be escaped because of the shell:" << "\n"
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<< " task add \"quoted ' quote\"" << "\n"
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<< " task add escaped \\' quote" << "\n"
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<< "\n"
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<< "Many characters have special meaning to the shell, including:" << "\n"
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<< " $ ! ' \" ( ) ; \\ ` * ? { } [ ] < > | & % # ~" << "\n"
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<< std::endl;
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return out.str ();
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}
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////////////////////////////////////////////////////////////////////////////////
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@@ -790,34 +795,49 @@ std::string runTaskCommand (
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T task;
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parse (args, command, task, conf);
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std::string out = "";
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bool gcMod = false; // Change occurred by way of gc.
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bool cmdMod = false; // Change occurred by way of command type.
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std::string out;
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if (command == "" && task.getId ()) { handleModify (tdb, task, conf ); if (shadow) updateShadowFile (tdb, conf); }
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else if (command == "add") { handleAdd (tdb, task, conf ); if (shadow) updateShadowFile (tdb, conf); }
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else if (command == "done") { handleDone (tdb, task, conf ); if (shadow) updateShadowFile (tdb, conf); }
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else if (command == "export") { handleExport (tdb, task, conf ); }
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else if (command == "projects") { out = handleProjects (tdb, task, conf ); }
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else if (command == "tags") { out = handleTags (tdb, task, conf ); }
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else if (command == "info") { out = handleInfo (tdb, task, conf ); }
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else if (command == "undelete") { out = handleUndelete (tdb, task, conf ); if (shadow) updateShadowFile (tdb, conf); }
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else if (command == "delete") { out = handleDelete (tdb, task, conf ); if (shadow) updateShadowFile (tdb, conf); }
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else if (command == "start") { out = handleStart (tdb, task, conf ); if (shadow) updateShadowFile (tdb, conf); }
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else if (command == "stop") { out = handleStop (tdb, task, conf ); if (shadow) updateShadowFile (tdb, conf); }
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else if (command == "undo") { out = handleUndo (tdb, task, conf ); if (shadow) updateShadowFile (tdb, conf); }
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else if (command == "stats") { out = handleReportStats (tdb, task, conf ); }
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else if (command == "completed") { if (gc) tdb.gc (); out = handleCompleted (tdb, task, conf ); if (shadow) updateShadowFile (tdb, conf); } // TODO replace with Custom
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else if (command == "summary") { if (gc) tdb.gc (); out = handleReportSummary (tdb, task, conf ); if (shadow) updateShadowFile (tdb, conf); }
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else if (command == "next") { if (gc) tdb.gc (); out = handleReportNext (tdb, task, conf ); if (shadow) updateShadowFile (tdb, conf); } // TODO replace with Custom
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else if (command == "history") { if (gc) tdb.gc (); out = handleReportHistory (tdb, task, conf ); if (shadow) updateShadowFile (tdb, conf); }
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else if (command == "ghistory") { if (gc) tdb.gc (); out = handleReportGHistory (tdb, task, conf ); if (shadow) updateShadowFile (tdb, conf); }
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else if (command == "calendar") { if (gc) tdb.gc (); out = handleReportCalendar (tdb, task, conf ); if (shadow) updateShadowFile (tdb, conf); }
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else if (command == "active") { if (gc) tdb.gc (); out = handleReportActive (tdb, task, conf ); if (shadow) updateShadowFile (tdb, conf); } // TODO replace with Custom
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else if (command == "overdue") { if (gc) tdb.gc (); out = handleReportOverdue (tdb, task, conf ); if (shadow) updateShadowFile (tdb, conf); } // TODO replace with Custom
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else if (command == "colors") { out = handleColor ( conf ); }
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else if (command == "version") { out = handleVersion ( conf ); }
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else if (command == "help") { longUsage ( conf ); }
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else if (isCustomReport (command)) { if (gc) tdb.gc (); out = handleCustomReport (tdb, task, conf, command); if (shadow) updateShadowFile (tdb, conf); } // New Custom reports
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else { shortUsage ( conf ); }
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// Read-only commands with no side effects.
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if (command == "export") { out = handleExport (tdb, task, conf); }
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else if (command == "projects") { out = handleProjects (tdb, task, conf); }
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else if (command == "tags") { out = handleTags (tdb, task, conf); }
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else if (command == "info") { out = handleInfo (tdb, task, conf); }
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else if (command == "stats") { out = handleReportStats (tdb, task, conf); }
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else if (command == "history") { out = handleReportHistory (tdb, task, conf); }
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else if (command == "ghistory") { out = handleReportGHistory (tdb, task, conf); }
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else if (command == "calendar") { out = handleReportCalendar (tdb, task, conf); }
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else if (command == "summary") { out = handleReportSummary (tdb, task, conf); }
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else if (command == "colors") { out = handleColor ( conf); }
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else if (command == "version") { out = handleVersion ( conf); }
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else if (command == "help") { out = longUsage ( conf); }
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// Commands that cause updates.
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else if (command == "" && task.getId ()) { cmdMod = true; out = handleModify (tdb, task, conf); }
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else if (command == "add") { cmdMod = true; out = handleAdd (tdb, task, conf); }
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else if (command == "done") { cmdMod = true; out = handleDone (tdb, task, conf); }
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else if (command == "undelete") { cmdMod = true; out = handleUndelete (tdb, task, conf); }
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else if (command == "delete") { cmdMod = true; out = handleDelete (tdb, task, conf); }
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else if (command == "start") { cmdMod = true; out = handleStart (tdb, task, conf); }
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else if (command == "stop") { cmdMod = true; out = handleStop (tdb, task, conf); }
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else if (command == "undo") { cmdMod = true; out = handleUndo (tdb, task, conf); }
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// Command that display IDs and therefore need TDB::gc first.
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else if (command == "completed") { if (gc) gcMod = tdb.gc (); out = handleCompleted (tdb, task, conf); }
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else if (command == "next") { if (gc) gcMod = tdb.gc (); out = handleReportNext (tdb, task, conf); }
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else if (command == "active") { if (gc) gcMod = tdb.gc (); out = handleReportActive (tdb, task, conf); }
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else if (command == "overdue") { if (gc) gcMod = tdb.gc (); out = handleReportOverdue (tdb, task, conf); }
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else if (isCustomReport (command)) { if (gc) gcMod = tdb.gc (); out = handleCustomReport (tdb, task, conf, command); }
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// If the command is not recognized, display usage.
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else { out = shortUsage (conf); }
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// Only update the shadow file if such an update was not suppressed (shadow),
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// and if an actual change occurred (gcMod || cmdMod).
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if (shadow && (gcMod || cmdMod))
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updateShadowFile (tdb, conf);
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return out;
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}
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