Add --force to pub lish.

Add --force to pub lish.

BUG=http://code.google.com/p/dart/issues/detail?id=8487

Committed: https://code.google.com/p/dart/source/detail?r=18423

[nweiz, 2013-02-13 00:23:32]

lgtm

https://codereview.chromium.org/12217156/diff/1/utils/tests/pub/test_pub.dart
File utils/tests/pub/test_pub.dart (right):

https://codereview.chromium.org/12217156/diff/1/utils/tests/pub/test_pub.dart...
utils/tests/pub/test_pub.dart:737: if (expected.last.trim() == '') {
Are there cases where we're not printing trailing newlines? We should probably
fix them if so.

[Bob Nystrom, 2013-02-13 00:52:58]

Thanks!

https://codereview.chromium.org/12217156/diff/1/utils/tests/pub/test_pub.dart
File utils/tests/pub/test_pub.dart (right):

https://codereview.chromium.org/12217156/diff/1/utils/tests/pub/test_pub.dart...
utils/tests/pub/test_pub.dart:737: if (expected.last.trim() == '') {
On 2013/02/13 00:23:32, nweiz wrote:
> Are there cases where we're not printing trailing newlines? We should probably
> fix them if so.

I don't think so. The 'if' here allows you to validate a single line of output
using:

  output: "Blah"

instead of:

  output: "Blah\n"

which is what you had to do before. That made sense if you had a multiline
string where the closing """ was on its own line, but it's a drag for single
line ones.

I know we can use RegExp instead to avoid those, but that bugs me for cases
where I do just want to validate a literal string. I hate having to escape regex
metacharacters there.