This task originally focused narrowly on generated code.
Recently, changesets in Differential have "attributes". There is a large set of behaviors which attributes should expand to handle. Generally, "attributes" mean that arc can specify these behaviors per-changeset with client-side rules, and Differential/Diffusion can optionally also specify these behaviors with rules.
- Generated Code: See PHI64. arc should be able to mark arbitrary changesets as "generated" so they are folded at display time.
- Context: See PHI675. By default, arc uploads files with full context. There are several levels of complexity here, but one desirable outcome is likely to let arc selectively send large files with less context (i.e., produce a low-context diff if a change includes a couple of lines in a 10MB text file).
- Tab Widths: See T2495. arc could have rules to say "this file uses 17-space tabstops".
- Syntax Highlighting: arc could have rules to say "by default, highlight this file as though it were python source code".
- Encoding: arc could have rules to say "by default, render this file as encoded with Shift-JIS".
- Whitespace: If whitespace options survive PHI723, arc could have rules to say "show / don't show whitespace changes for this file".