Debug info, not warning, when no files configured for expansion

Cycle filename patterns only once

Get modulename via function; set kwrepo attribs via direct reference

Move all that can be done only once per repo into reposetup Actually kwrepo is not set up if there aren't any files configured for keyword substitution. Stuff that now is done at reposetup and not at every filelog init or hook: 1) filename matching function 2) compilation of keyword regex 3) templates and changeset templater kwtemplater as an appended class should prevent namespace conflicts.

Extend templater.common_filters in kwtemplater

Document reposetup; recommend loading on per-repo basis

Implement configurable exclusion of files from expansion

Only initialize kwtemplater in kwfilelog if needed

Use full power of util.matcher for kwfmatches()

Simply dict() keywordmaps configitems

Emergency brake against multiline expansion As expansion always happens ad hoc, is not tracked, multiline or incremental expansion do not seem worth the trouble. If at all, it would make sense with static, hardcoded keywords.

More doc, link to KeywordPlan

No need to read changelog in show(); node mandatory arg for expand()

Just re-bin the node kwarg of the hook, instead of using changelog

Same as for hardcoded branch: omit hooktype test, return w/o explicit value