18185059396

Committed 02 Oct 2025 06:17AM UTC coverage: 85.235% (+0.04%) from 85.194%

Build # 18185059396

Build Type

Pull #3963

github

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web-flow

Commit Message

Merge 1791af106 into e6b9c71cb

Pull Request Pull Request #3963: info: indent wrapped annotation lines (fixes #3914)

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95.93

/src/commands/CmdInfo.cpp

////////////////////////////////////////////////////////////////////////////////
//
// Copyright 2006 - 2021, Tomas Babej, 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.
//
// https://www.opensource.org/licenses/mit-license.php
//
////////////////////////////////////////////////////////////////////////////////

#include <cmake.h>
// cmake.h include header must come first

#include <CmdInfo.h>
#include <Context.h>
#include <Datetime.h>
#include <Duration.h>
#include <Filter.h>
#include <Lexer.h>
#include <Operation.h>
#include <feedback.h>
#include <format.h>
#include <rules.h>
#include <shared.h>
#include <stdlib.h>
#include <taskchampion-cpp/lib.h>
#include <util.h>

#include <algorithm>
#include <sstream>
#include <string>

////////////////////////////////////////////////////////////////////////////////

static std::string wrapWithPrefixes(const std::string& text,
                                    size_t width,
                                    const std::string& prefixFirst,
                                    const std::string& prefixCont) {
  if (width == 0) return prefixFirst + text;

  std::ostringstream out;
  std::istringstream is(text);
  std::string word, line;
  bool firstLine = true;

  auto safeSub = [](size_t a, size_t b){ return (a > b) ? (a - b) : 0u; };
  const size_t effFirst = safeSub(width, prefixFirst.size());
  const size_t effCont  = safeSub(width, prefixCont.size());

  auto flush = [&](bool isFirst){
    if (!line.empty()) {
      out << (isFirst ? prefixFirst : prefixCont) << line << '\n';
      line.clear();
    }
  };

  while (is >> word) {
    size_t eff = firstLine ? effFirst : effCont;
    if (line.empty()) {
      line = word;
    } else if (line.size() + 1 + word.size() <= eff) {
      line += ' ';
      line += word;
    } else {
      flush(firstLine);
      firstLine = false;
      line = word;
    }
  }
  flush(firstLine);

  std::string s = out.str();
  if (!s.empty() && s.back() == '\n') s.pop_back();
  return s;
}

CmdInfo::CmdInfo() {
  _keyword = "information";
  _usage = "task <filter> information";
  _description = "Shows all data and metadata";
  _read_only = true;

  // This is inaccurate, but it does prevent a GC.  While this doesn't make a
  // lot of sense, given that the info command shows the ID, it does mimic the
  // behavior of versions prior to 2.0, which the test suite relies upon.
  //
  // Once the test suite is completely modified, this can be corrected.
  _displays_id = false;
  _needs_gc = false;
  _needs_recur_update = false;
  _uses_context = false;
  _accepts_filter = true;
  _accepts_modifications = false;
  _accepts_miscellaneous = false;
  _category = Command::Category::metadata;
}

////////////////////////////////////////////////////////////////////////////////
int CmdInfo::execute(std::string& output) {
  auto rc = 0;

  // Apply filter.
  Filter filter;
  std::vector<Task> filtered;
  filter.subset(filtered);

  if (!filtered.size()) {
    Context::getContext().footnote("No matches.");
    rc = 1;
  }

  // Determine the output date format, which uses a hierarchy of definitions.
  //   rc.dateformat.info
  //   rc.dateformat
  auto dateformat = Context::getContext().config.get("dateformat.info");
  if (dateformat == "") dateformat = Context::getContext().config.get("dateformat");

  auto dateformatanno = Context::getContext().config.get("dateformat.annotation");
  if (dateformatanno == "") dateformatanno = dateformat;

  // Render each task.
  std::stringstream out;
  for (auto& task : filtered) {
    Table view;
    view.width(Context::getContext().getWidth());
    if (Context::getContext().config.getBoolean("obfuscate")) view.obfuscate();
    if (Context::getContext().color()) view.forceColor();
    view.add("Name");
    view.add("Value");
    setHeaderUnderline(view);

    Datetime now;

    // id
    auto row = view.addRow();
    view.set(row, 0, "ID");
    view.set(row, 1, (task.id ? format(task.id) : "-"));

    std::string status = Lexer::ucFirst(Task::statusToText(task.getStatus()));

    // description
    Color c;
    autoColorize(task, c);
    auto description = task.get("description");
    auto indent = Context::getContext().config.getInteger("indent.annotation");

    {
  const size_t termWidth = Context::getContext().getWidth();
  const size_t approxNameCol = 20; // conservative; covers labels like "Last modified"
  const size_t valueWidth = termWidth > approxNameCol ? termWidth - approxNameCol : termWidth;

  for (const auto& anno : task.getAnnotations()) {
    // first line looks exactly like before: <indent><timestamp><space>
    const std::string firstPrefix =
      std::string(indent, ' ') +
      Datetime(anno.first.substr(11)).toString(dateformatanno) + ' ';

    // continuation lines: same width, all spaces
    const std::string contPrefix(firstPrefix.size(), ' ');

    // wrap just the annotation body with our prefixes
    const std::string wrapped = wrapWithPrefixes(anno.second, valueWidth, firstPrefix, contPrefix);

    description += '\n' + wrapped;
  }
}

    if (task.has("description")) {
      row = view.addRow();
      view.set(row, 0, "Description");
      view.set(row, 1, description, c);
    }

    // status
    row = view.addRow();
    view.set(row, 0, "Status");
    view.set(row, 1, status);

    // project
    if (task.has("project")) {
      row = view.addRow();
      view.set(row, 0, "Project");
      view.set(row, 1, task.get("project"));
    }

    // dependencies: blocked
    {
      auto blocked = task.getDependencyTasks();
      if (blocked.size()) {
        std::stringstream message;
        for (auto& block : blocked) message << block.id << ' ' << block.get("description") << '\n';

        row = view.addRow();
        view.set(row, 0, "This task blocked by");
        view.set(row, 1, message.str());
      }
    }

    // dependencies: blocking
    {
      auto blocking = task.getBlockedTasks();
      if (blocking.size()) {
        std::stringstream message;
        for (auto& block : blocking) message << block.id << ' ' << block.get("description") << '\n';

        row = view.addRow();
        view.set(row, 0, "This task is blocking");
        view.set(row, 1, message.str());
      }
    }

    // recur
    if (task.has("recur")) {
      row = view.addRow();
      view.set(row, 0, "Recurrence");
      view.set(row, 1, task.get("recur"));
    }

    // parent
    // 2017-01-07: Deprecated in 2.6.0
    if (task.has("parent")) {
      row = view.addRow();
      view.set(row, 0, "Parent task");
      view.set(row, 1, task.get("parent"));
    }

    // mask
    // 2017-01-07: Deprecated in 2.6.0
    if (task.has("mask")) {
      row = view.addRow();
      view.set(row, 0, "Mask");
      view.set(row, 1, task.get("mask"));
    }

    // imask
    // 2017-01-07: Deprecated in 2.6.0
    if (task.has("imask")) {
      row = view.addRow();
      view.set(row, 0, "Mask Index");
      view.set(row, 1, task.get("imask"));
    }

    // template
    if (task.has("template")) {
      row = view.addRow();
      view.set(row, 0, "Template task");
      view.set(row, 1, task.get("template"));
    }

    // last
    if (task.has("last")) {
      row = view.addRow();
      view.set(row, 0, "Last instance");
      view.set(row, 1, task.get("last"));
    }

    // rtype
    if (task.has("rtype")) {
      row = view.addRow();
      view.set(row, 0, "Recurrence type");
      view.set(row, 1, task.get("rtype"));
    }

    // entry
    if (task.has("entry") && task.get_date("entry")) {
      row = view.addRow();
      view.set(row, 0, "Entered");
      Datetime dt(task.get_date("entry"));
      std::string entry = dt.toString(dateformat);

      std::string age;
      auto created = task.get("entry");
      if (created.length()) {
        Datetime dt(strtoll(created.c_str(), nullptr, 10));
        age = Duration(now - dt).formatVague();
      }

      view.set(row, 1, entry + " (" + age + ')');
    }

    auto validDate = [&](const char* prop) {
      if (!task.has(prop)) {
        return false;
      }
      if (task.get_date(prop) == 0) {
        return false;
      }
      return true;
    };

    // wait
    if (validDate("wait")) {
      row = view.addRow();
      view.set(row, 0, "Waiting until");
      view.set(row, 1, Datetime(task.get_date("wait")).toString(dateformat));
    }

    // scheduled
    if (validDate("scheduled")) {
      row = view.addRow();
      view.set(row, 0, "Scheduled");
      view.set(row, 1, Datetime(task.get_date("scheduled")).toString(dateformat));
    }

    // start
    if (validDate("start")) {
      row = view.addRow();
      view.set(row, 0, "Start");
      view.set(row, 1, Datetime(task.get_date("start")).toString(dateformat));
    }

    // due (colored)
    if (validDate("due")) {
      row = view.addRow();
      view.set(row, 0, "Due");
      view.set(row, 1, Datetime(task.get_date("due")).toString(dateformat));
    }

    // end
    if (validDate("end")) {
      row = view.addRow();
      view.set(row, 0, "End");
      view.set(row, 1, Datetime(task.get_date("end")).toString(dateformat));
    }

    // until
    if (validDate("until")) {
      row = view.addRow();
      view.set(row, 0, "Until");
      view.set(row, 1, Datetime(task.get_date("until")).toString(dateformat));
    }

    // modified
    if (validDate("modified")) {
      row = view.addRow();
      view.set(row, 0, "Last modified");

      Datetime mod(task.get_date("modified"));
      std::string age = Duration(now - mod).formatVague();
      view.set(row, 1, mod.toString(dateformat) + " (" + age + ')');
    }

    // tags ...
    auto tags = task.getTags();
    if (tags.size()) {
      auto allTags = join(" ", tags);

      row = view.addRow();
      view.set(row, 0, "Tags");
      view.set(row, 1, allTags);
    }

    // Virtual tags.
    {
      // Note: This list must match that in Task::hasTag.
      // Note: This list must match that in ::feedback_reserved_tags.
      std::string virtualTags = "";
      if (task.hasTag("ACTIVE")) virtualTags += "ACTIVE ";
      if (task.hasTag("ANNOTATED")) virtualTags += "ANNOTATED ";
      if (task.hasTag("BLOCKED")) virtualTags += "BLOCKED ";
      if (task.hasTag("BLOCKING")) virtualTags += "BLOCKING ";
      if (task.hasTag("CHILD")) virtualTags += "CHILD ";  // 2017-01-07: Deprecated in 2.6.0
      if (task.hasTag("COMPLETED")) virtualTags += "COMPLETED ";
      if (task.hasTag("DELETED")) virtualTags += "DELETED ";
      if (task.hasTag("DUE")) virtualTags += "DUE ";
      if (task.hasTag("DUETODAY")) virtualTags += "DUETODAY ";  // 2016-03-29: Deprecated in 2.6.0
      if (task.hasTag("INSTANCE")) virtualTags += "INSTANCE ";
      if (task.hasTag("LATEST")) virtualTags += "LATEST ";
      if (task.hasTag("MONTH")) virtualTags += "MONTH ";
      if (task.hasTag("ORPHAN")) virtualTags += "ORPHAN ";
      if (task.hasTag("OVERDUE")) virtualTags += "OVERDUE ";
      if (task.hasTag("PARENT")) virtualTags += "PARENT ";  // 2017-01-07: Deprecated in 2.6.0
      if (task.hasTag("PENDING")) virtualTags += "PENDING ";
      if (task.hasTag("PRIORITY")) virtualTags += "PRIORITY ";
      if (task.hasTag("PROJECT")) virtualTags += "PROJECT ";
      if (task.hasTag("QUARTER")) virtualTags += "QUARTER ";
      if (task.hasTag("READY")) virtualTags += "READY ";
      if (task.hasTag("SCHEDULED")) virtualTags += "SCHEDULED ";
      if (task.hasTag("TAGGED")) virtualTags += "TAGGED ";
      if (task.hasTag("TEMPLATE")) virtualTags += "TEMPLATE ";
      if (task.hasTag("TODAY")) virtualTags += "TODAY ";
      if (task.hasTag("TOMORROW")) virtualTags += "TOMORROW ";
      if (task.hasTag("UDA")) virtualTags += "UDA ";
      if (task.hasTag("UNBLOCKED")) virtualTags += "UNBLOCKED ";
      if (task.hasTag("UNTIL")) virtualTags += "UNTIL ";
      if (task.hasTag("WAITING")) virtualTags += "WAITING ";
      if (task.hasTag("WEEK")) virtualTags += "WEEK ";
      if (task.hasTag("YEAR")) virtualTags += "YEAR ";
      if (task.hasTag("YESTERDAY")) virtualTags += "YESTERDAY ";
      // If you update the above list, update src/Task.cpp and src/commands/CmdTags.cpp as well.

      row = view.addRow();
      view.set(row, 0, "Virtual tags");
      view.set(row, 1, virtualTags);
    }

    // uuid
    row = view.addRow();
    view.set(row, 0, "UUID");
    auto uuid = task.get("uuid");
    view.set(row, 1, uuid);

    // Task::urgency
    row = view.addRow();
    view.set(row, 0, "Urgency");
    view.set(row, 1, Lexer::trimLeft(format(task.urgency(), 4, 4)));

    // Show any UDAs
    auto all = task.all();
    for (auto& att : all) {
      if (Context::getContext().columns.find(att) != Context::getContext().columns.end()) {
        Column* col = Context::getContext().columns[att];
        if (col->is_uda()) {
          auto value = task.get(att);
          if (value != "") {
            row = view.addRow();
            view.set(row, 0, col->label());

            if (col->type() == "date")
              value = Datetime(value).toString(dateformat);
            else if (col->type() == "duration") {
              Duration iso;
              std::string::size_type cursor = 0;
              if (iso.parse(value, cursor))
                value = (std::string)Variant(iso.toTime_t(), Variant::type_duration);
              else
                value = "PT0S";
            }

            view.set(row, 1, value);
          }
        }
      }
    }

    // Show any orphaned UDAs, which are identified by not being represented in
    // the context.columns map.
    for (auto& att : all) {
      if (att.substr(0, 11) != "annotation_" && att.substr(0, 4) != "tag_" &&
          att.substr(0, 4) != "dep_" &&
          Context::getContext().columns.find(att) == Context::getContext().columns.end()) {
        row = view.addRow();
        view.set(row, 0, '[' + att);
        view.set(row, 1, task.get(att) + ']');
      }
    }

    // Create a second table, containing urgency details, if necessary.
    Table urgencyDetails;
    if (task.urgency() != 0.0) {
      setHeaderUnderline(urgencyDetails);
      if (Context::getContext().color()) {
        Color alternate(Context::getContext().config.get("color.alternate"));
        urgencyDetails.colorOdd(alternate);
        urgencyDetails.intraColorOdd(alternate);
      }

      if (Context::getContext().config.getBoolean("obfuscate")) urgencyDetails.obfuscate();
      if (Context::getContext().config.getBoolean("color")) view.forceColor();

      urgencyDetails.width(Context::getContext().getWidth());
      urgencyDetails.add("");  // Attribute
      urgencyDetails.add("");  // Value
      urgencyDetails.add("");  // *
      urgencyDetails.add("");  // Coefficient
      urgencyDetails.add("");  // =
      urgencyDetails.add("");  // Result

      urgencyTerm(urgencyDetails, "project", task.urgency_project(),
                  Task::urgencyProjectCoefficient);
      urgencyTerm(urgencyDetails, "active", task.urgency_active(), Task::urgencyActiveCoefficient);
      urgencyTerm(urgencyDetails, "scheduled", task.urgency_scheduled(),
                  Task::urgencyScheduledCoefficient);
      urgencyTerm(urgencyDetails, "waiting", task.urgency_waiting(),
                  Task::urgencyWaitingCoefficient);
      urgencyTerm(urgencyDetails, "blocked", task.urgency_blocked(),
                  Task::urgencyBlockedCoefficient);
      urgencyTerm(urgencyDetails, "blocking", task.urgency_blocking(),
                  Task::urgencyBlockingCoefficient);
      urgencyTerm(urgencyDetails, "annotations", task.urgency_annotations(),
                  Task::urgencyAnnotationsCoefficient);
      urgencyTerm(urgencyDetails, "tags", task.urgency_tags(), Task::urgencyTagsCoefficient);
      urgencyTerm(urgencyDetails, "due", task.urgency_due(), Task::urgencyDueCoefficient);
      urgencyTerm(urgencyDetails, "age", task.urgency_age(), Task::urgencyAgeCoefficient);

      // Tag, Project- and UDA-specific coefficients.
      for (auto& var : Task::coefficients) {
        if (var.first.substr(0, 13) == "urgency.user.") {
          // urgency.user.project.<project>.coefficient
          auto end = std::string::npos;
          if (var.first.substr(13, 8) == "project." &&
              (end = var.first.find(".coefficient")) != std::string::npos) {
            auto project = var.first.substr(21, end - 21);
            const std::string taskProjectName = task.get("project");
            if (taskProjectName == project || taskProjectName.find(project + '.') == 0) {
              urgencyTerm(urgencyDetails, "PROJECT " + project, 1.0, var.second);
            }
          }

          // urgency.user.tag.<tag>.coefficient
          if (var.first.substr(13, 4) == "tag." &&
              (end = var.first.find(".coefficient")) != std::string::npos) {
            auto name = var.first.substr(17, end - 17);
            if (task.hasTag(name)) urgencyTerm(urgencyDetails, "TAG " + name, 1.0, var.second);
          }

          // urgency.user.keyword.<keyword>.coefficient
          if (var.first.substr(13, 8) == "keyword." &&
              (end = var.first.find(".coefficient")) != std::string::npos) {
            auto keyword = var.first.substr(21, end - 21);
            if (task.get("description").find(keyword) != std::string::npos)
              urgencyTerm(urgencyDetails, "KEYWORD " + keyword, 1.0, var.second);
          }
        }

        // urgency.uda.<name>.coefficient
        else if (var.first.substr(0, 12) == "urgency.uda.") {
          // urgency.uda.<name>.coefficient
          // urgency.uda.<name>.<value>.coefficient
          auto end = var.first.find(".coefficient");
          if (end != std::string::npos) {
            auto uda = var.first.substr(12, end - 12);
            auto dot = uda.find('.');
            if (dot == std::string::npos) {
              // urgency.uda.<name>.coefficient
              if (task.has(uda))
                urgencyTerm(urgencyDetails, std::string("UDA ") + uda, 1.0, var.second);
            } else {
              // urgency.uda.<name>.<value>.coefficient
              if (task.get(uda.substr(0, dot)) == uda.substr(dot + 1))
                urgencyTerm(urgencyDetails, std::string("UDA ") + uda, 1.0, var.second);
            }
          }
        }
      }

      row = urgencyDetails.addRow();
      urgencyDetails.set(row, 5, rightJustify("------", 6));
      row = urgencyDetails.addRow();
      urgencyDetails.set(row, 5, rightJustify(format(task.urgency(), 4, 4), 6));
    }

    // Create a third table, containing undo log change details.
    Table journal;
    setHeaderUnderline(journal);

    if (Context::getContext().config.getBoolean("obfuscate")) journal.obfuscate();
    if (Context::getContext().config.getBoolean("color")) journal.forceColor();

    journal.width(Context::getContext().getWidth());
    journal.add("Date");
    journal.add("Modification");

    if (Context::getContext().config.getBoolean("journal.info")) {
      auto& replica = Context::getContext().tdb2.replica();
      tc::Uuid tcuuid = tc::uuid_from_string(uuid);
      auto tcoperations = replica->get_task_operations(tcuuid);
      auto operations = Operation::operations(tcoperations);

      // Sort by type (Create < Update < Delete < UndoPoint) and then by timestamp.
      std::sort(operations.begin(), operations.end());

      long last_timestamp = 0;
      for (size_t i = 0; i < operations.size(); i++) {
        auto& op = operations[i];

        // Only display updates -- creation and deletion aren't interesting.
        if (!op.is_update()) {
          continue;
        }

        // Group operations that occur within 1s of this one. This is a heuristic
        // for operations performed in the same `task` invocation, and allows e.g.,
        // `task done end:-2h` to take the updated `end` value into account. It also
        // groups these events into a single "row" of the table for better layout.
        size_t group_start = i;
        for (i++; i < operations.size(); i++) {
          auto& op2 = operations[i];
          if (!op2.is_update() || op2.get_timestamp() - op.get_timestamp() > 1) {
            break;
          }
        }
        size_t group_end = i;
        i--;

        std::optional<std::string> msg =
            formatForInfo(operations, group_start, group_end, dateformat, last_timestamp);

        if (!msg) {
          continue;
        }

        int row = journal.addRow();
        Datetime timestamp(op.get_timestamp());
        journal.set(row, 0, timestamp.toString(dateformat));
        journal.set(row, 1, *msg);
      }
    }

    out << optionalBlankLine() << view.render() << '\n';

    if (urgencyDetails.rows() > 0) out << urgencyDetails.render() << '\n';

    if (journal.rows() > 0) out << journal.render() << '\n';
  }

  output = out.str();
  return rc;
}

////////////////////////////////////////////////////////////////////////////////
void CmdInfo::urgencyTerm(Table& view, const std::string& label, float measure,
                          float coefficient) const {
  auto value = measure * coefficient;
  if (value != 0.0) {
    auto row = view.addRow();
    view.set(row, 0, "    " + label);
    view.set(row, 1, rightJustify(format(measure, 5, 3), 6));
    view.set(row, 2, "*");
    view.set(row, 3, rightJustify(format(coefficient, 4, 2), 4));
    view.set(row, 4, "=");
    view.set(row, 5, rightJustify(format(value, 5, 3), 6));
  }
}

////////////////////////////////////////////////////////////////////////////////
std::optional<std::string> CmdInfo::formatForInfo(const std::vector<Operation>& operations,
                                                  size_t group_start, size_t group_end,
                                                  const std::string& dateformat, long& last_start) {
  std::stringstream out;
  for (auto i = group_start; i < group_end; i++) {
    auto& operation = operations[i];
    assert(operation.is_update());

    // Extract the parts of the Update operation.
    std::string prop = operation.get_property();
    std::optional<std::string> value = operation.get_value();
    std::optional<std::string> old_value = operation.get_old_value();
    Datetime timestamp(operation.get_timestamp());

    // Never care about modifying the modification time, or the legacy properties `depends` and
    // `tags`.
    if (prop == "modified" || prop == "depends" || prop == "tags") {
      continue;
    }

    // Handle property deletions
    if (!value && old_value) {
      if (Task::isAnnotationAttr(prop)) {
        out << format("Annotation '{1}' deleted.\n", *old_value);
      } else if (Task::isTagAttr(prop)) {
        out << format("Tag '{1}' deleted.\n", Task::attr2Tag(prop));
      } else if (Task::isDepAttr(prop)) {
        out << format("Dependency on '{1}' deleted.\n", Task::attr2Dep(prop));
      } else if (prop == "start") {
        Datetime started(last_start);
        Datetime stopped = timestamp;

        // If any update in this group sets the `end` property, use that instead of the
        // timestamp deleting the `start` property as the stop time.
        // See https://github.com/GothenburgBitFactory/taskwarrior/issues/2514
        for (auto i = group_start; i < group_end; i++) {
          auto& op = operations[i];
          assert(op.is_update());
          if (op.get_property() == "end") {
            try {
              stopped = op.get_value().value();
            } catch (std::string) {
              // Fall back to the 'start' timestamp if its value is un-parseable.
              stopped = op.get_timestamp();
            }
          }
        }

        out << format("{1} deleted (duration: {2}).", Lexer::ucFirst(prop),
                      Duration(stopped - started).format())
            << "\n";
      } else {
        out << format("{1} deleted.\n", Lexer::ucFirst(prop));
      }
    }

    // Handle property additions.
    if (value && !old_value) {
      if (Task::isAnnotationAttr(prop)) {
        out << format("Annotation of '{1}' added.\n", *value);
      } else if (Task::isTagAttr(prop)) {
        out << format("Tag '{1}' added.\n", Task::attr2Tag(prop));
      } else if (Task::isDepAttr(prop)) {
        out << format("Dependency on '{1}' added.\n", Task::attr2Dep(prop));
      } else {
        // Record the last start time for later duration calculation.
        if (prop == "start") {
          try {
            last_start = Datetime(value.value()).toEpoch();
          } catch (std::string) {
            // ignore invalid dates
          }
        }

        out << format("{1} set to '{2}'.", Lexer::ucFirst(prop),
                      renderAttribute(prop, *value, dateformat))
            << "\n";
      }
    }

    // Handle property changes.
    if (value && old_value) {
      if (Task::isTagAttr(prop) || Task::isDepAttr(prop)) {
        // Dependencies and tags do not have meaningful values.
      } else if (Task::isAnnotationAttr(prop)) {
        out << format("Annotation changed to '{1}'.\n", *value);
      } else {
        // Record the last start time for later duration calculation.
        if (prop == "start") {
          last_start = Datetime(value.value()).toEpoch();
        }

        out << format("{1} changed from '{2}' to '{3}'.", Lexer::ucFirst(prop),
                      renderAttribute(prop, *old_value, dateformat),
                      renderAttribute(prop, *value, dateformat))
            << "\n";
      }
    }
  }

  if (out.str().length() == 0) return std::nullopt;

  return out.str();
}

////////////////////////////////////////////////////////////////////////////////

GothenburgBitFactory / taskwarrior / 18185059396

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