pub run polymer:new_entry somefile.html should not overwrite existing files

[DartBot]

<img src="https://avatars.githubusercontent.com/u/405837?v=3" align="left" width="96" height="96"hspace="10"> Issue by zoechi Originally opened as dart-lang/sdk#20624

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pub run polymer:new_entry somefile.html

just overwrites an existing file

myuser@mypc ~/dart/bwu_testrunner  (lauchers) $ pub run polymer:new_entry web/index.html Successfully created:   /home/myusesr/dart/bwu_testrunner/web/index.html

edited the file

host@mypc ~/source/my/dart/bwu_testrunner  (lauchers) $ pub run polymer:new_entry web/index.html Successfully created:   /home/myuser/dart/bwu_testrunner/web/index.html

changes are lost

it should either require the user to delete the file first or warn and ask for permission to overwrite.

Polmyer 0.12.1 Dart VM version: 1.6.0-edge.39436 (Wed Aug 20 16:03:02 2014) on "linux_x64"

[jakemac53]

This tool doesn't exist yet in the new polymer, but the new_element one does and it will overwrite files so it should be updated.