paths: make getpath() accept multiple defaults This is necessary to handle "default-push" and "default" as fallback items. We can't apply the same rule as "default:pushurl" because "default-push" is a valid named path. This series is for default branch. I have a simpler patch for stable.

check-code: improve test-check-code error diffs Whenever check-code finds something wrong, the diffs it generated were fairly hard to read. The problem is that check-code before this change would list files that were white listed using no- check- code but without a glob marker. Whereas, the test-check-code.t expected output has no-che?k-code (glob) in order to avoid having itself flagged as a file to skip. Thus, in addition to any lines relating to things you did wrong, all of the white-listed files are listed as changed. There is no reason for things to be this painful. This change makes the output from check-code.py match the expected output in test-check-code.t

destutil: use scmutil.revrange for desthistedit (issue5001) This allows user aliases to be expanded. It also prevents the user-provided revset from being treated as a revset expression.

pull: make a single call to obsstore.add (issue5006) Prior to this, a pull of 90k markers (already known locally!) was making about 2000 calls to obsstore.add, which was repeatedly building a full set of known markers (in addition to other transaction overhead). This quadratic behavior accounted for about 50 seconds of a 70 second no-op pull. After this change, we're down to 20 seconds. While it would seem simplest to just cache the known set for obsstore.add, this would also introduce issues of correct cache invalidation. The extra pointless transaction overhead would also remain.