Thermometer is a vim plugin for mercurial users.

Available commands are:

• Hgstatus to open a quickfix window with changes to the repository
• Hgreset to reset status & rev data
• Hgdiff to diff the current buffer with its last version on the repository, or with a particular revision if a revision number is provided. Hgdiffoff will close the diff and return to normal mode.
• Hglog to show a file's log, or, if no file is being edited, the full log. Can receive an optional parameter to limit the number of commits shown.
• Hgblame to show blame information for each line.
• Hgsummary to show a summary of the working dir

The plugin also provides functions to be used in statuslines, e.g. in your vimrc:

set statusline+=%{g:HgStatusLine()}

For more information take a look at the documentation.