pcottle/learnGitBranching · info · CommandResult

<dynamic tag listing>

Error message

<dynamic tag listing>

What it means

Not a failure: printTags builds the tag listing (one tag id per line) and returns it by throwing a CommandResult, which the dispatcher renders as normal command output.

Source

Thrown at src/js/git/index.js:863

  this.printBranches(toPrint);
};

GitEngine.prototype.printBranches = function(branches) {
  var result = '';
  branches.forEach(branch => {
    result += (branch.selected ? '* ' : '') + this.resolveName(branch.id).split('"')[1] + '\n';
  });
  throw new CommandResult({
    msg: result
  });
};

GitEngine.prototype.printTags = function(tags) {
  var result = '';
  tags.forEach(function (tag) {
    result += tag.id + '\n';
  });
  throw new CommandResult({
    msg: result
  });
};

GitEngine.prototype.printRemotes = function(options) {
  var result = '';
  if (options.verbose) {
    result += 'origin (fetch)\n';
    result += TAB + 'git@github.com:pcottle/foo.git' + '\n\n';
    result += 'origin (push)\n';
    result += TAB + 'git@github.com:pcottle/foo.git';
  } else {
    result += 'origin';
  }
  throw new CommandResult({
    msg: result
  });
};

View on GitHub (pinned to 5b09d0ff96)

Solutions

1. Handle CommandResult in a catch block when calling directly
2. Let the standard command pipeline invoke it instead

Example fix

// before
engine.printTags(tags); // throws
// after
try { engine.printTags(tags); }
catch (e) { if (e instanceof CommandResult) display(e.msg); else throw e; }

function isCommandResult(e){ return e instanceof CommandResult; }

try { engine.printTags(tags); } catch (e) { if (e instanceof CommandResult) { show(e.msg); } else { throw e; } }

When it happens

Trigger: Running `git tag` successfully; any code path that invokes printTags.

Common situations: Only matters for programmatic callers of GitEngine who don't handle the throw-for-output convention.

Related errors

• <dynamic branch listing>
• <dynamic remote listing>
• No tag found, nothing to remove
• bad-tag-name
• Tags are not allowed as sources for pushing

AI-assisted analysis of pcottle/learnGitBranching@5b09d0ff96 (2026-08-27). Data as JSON: /api/errors/738b36ebe4b28ad9. Report an issue: GitHub.