convert: for git, factor out code to add entries to a separate function We're going to call this for multiple files in one iteration in upcoming patches.

convert: for git's getchanges, always split entry line into components We always need to know whether the entry is a rename or copy, so split it up unconditionally.

convert: for git's getchanges, use explicit index for iteration Upcoming patches will add support for copies and renames, for which we'll need to access multiple lines of the difftree output at once.

convert: add initial docs for git sources Upcoming patches will add config options for git sources. This patch adds a place to document them.

color: document that changeset phases have labels It's very useful to be able to colourise csets according to their phases. There was no indication anywhere in the docs that this is possible. We use e.g. `changeset.secret = ` instead of `changeset.secret ='none'`, because otherwise this is a BC: it would nullify the effects given to log.changeset label that usually surrounds the changeset.{phase} labels. Specifying the label without any effect instead of 'none' is a true no-op change and purely documentation.

color: change the debug output format Before, the format was label(labeled text) # single label [label1 label2](labeled text) # multiple Now, it's [labels|labeled text] ..which should make things a bit more clear.

color: enable debug option to show labels This is a debug option for showing labels. This can be helpful for knowing which labels are available for colouring or to see the output when defining your own templates. A couple of tests are included.

color: document that labels are used for colorizing text It is a deeply hidden secret that it's possible to colorise so many things with so many different labels. This is an attempt to document this. The text is a bit long, but it seems as short as can be while documenting everything. Perhaps it should be hidden under a --verbose option.

contrib: add OS X p4merge to mergetools.hgrc

patch: enable diff.tab markup for the color extension The following patch splits up changed lines along tabs (using re.findall), and gives them a "diff.tab" label. This can be used by the color extension for colorising tabs, like it does right now with trailing whitespace. I also provide corresponding tests.