[Anthill-dev] Some Anthill OS patches

[Jim Hague]

I've accumulated a few modifications to Anthill OS that might be of wider 
interest. I recently made time to have a play with Mercurial's patch queues, 
and so have some patches against current CVS.

These patches are, in order:

build-log-scanner
    Scan build log for up to 4 regular expressions and apply different
    highlight colours to the build display. I use this to highlight
    builds with warnings in orange.
svn-noauthor-tags
    Fix Subversion adapter to cope with '(no author)' author name. Fix mailed
    to Anthill list some time ago by Philip gnugy at rogers.com., but not in CVS.
newline-at-end-of-version-file
    The version adapter doesn't put a newline at the end of the version file.
    I find I prefer one to be there to remove diff chatter.
jdk-5-import-adjustment
    Adjust a couple of imports so that Anthill OS builds under JDK 5
    and later.
svn-checkout-happens-twice
    Each time the Subversion adapter does a checkout, it does it twice.
bad-line-endings
    Fix up some line ending brouhaha in the sources.
track-checkout-by-rev-id
    A bit of a big one, this. Explanation below.
add-mercurial-repository-adapter
    Add a repository adapter for Mercurial (http://www.selenic.com/mercurial).
    Requires track-checkout-by-rev-id.

I'll mail them in separate messages. They are also available in a Mercurial 
repository at http://hg.lunch.org.uk/Anthill. The repository is an import of 
the Anthill OS CVS, with the above changes as patches, so you'll need to 
do 'hg qclone' followed by 'hg qpush -a' to get all the patches applied.

track-checkout-by-rev-id. Right now Anthill marks the point at which it does a 
built with a date/time with 1 second resolution. Changeset based VCS allow a 
more precise specification, the revision number, which can also be used as 
the target of the tag to ensure that what is tagged is *exactly* what was 
built. Also, at least one distributed VCS (yep, Mercurial) can't tag by time; 
time could mean either time the change was originally commited, or time the 
change hit this repository and it keeps neither. So this change switches 
Anthill to record the build point with an identifier from the VCS adapter, 
and changes the Subversion adapter to use changeset number instead of date. 
Along the way I fixed up a pet peeve (tagged sources are not the built 
sources), skip checkout when checking for new changes if the VCS can do that, 
and added a proper 'Do you want incremental builds?' option. I don't know how 
well it will all work with the other repository adapters, which are unchanged 
and use date/time as before.
-- 
Jim Hague - jim.hague at acm.org          Never trust a computer you can't lift.