view CONTRIBUTING @ 31182:16272d8c24f6

formatter: add support for changeset templating

Some formatter-based commands provide fields that are identical to the ones
defined in templatekw, but we had to specify them manually to support all
changeset-based template keywords.

This patch adds fm.context() that populates all templatekw. These keywords
are available only in template output, so we still need to set important
keywords via fm.data() if they should be available in e.g. JSON output.

Currently fm.context() takes only 'ctx' argument. It will eventually be
extended to take 'fctx' to support file-based keywords (e.g. {path}) seen
in hgweb.

Our full contribution guidelines are in our wiki, please see:

https://www.mercurial-scm.org/wiki/ContributingChanges

If you just want a checklist to follow, you can go straight to

https://www.mercurial-scm.org/wiki/ContributingChanges#Submission_checklist

If you can't run the entire testsuite for some reason (it can be
difficult on Windows), please at least run `contrib/check-code.py` on
any files you've modified and run `python contrib/check-commit` on any
commits you've made (for example, `python contrib/check-commit
273ce12ad8f1` will report some style violations on a very old commit).