branchmap: drop branchcache.setdefault() (API) All the callers are updated to call setdefault of branchcache.entries Differential Revision: https://phab.mercurial-scm.org/D6153

branchcache: rename itervalues() to iterheads() The itervalues() exists because branchcache() had a dict interface. Since it no longer has a dict interface, it makes sense to have better function names. If a person does not understand how branchcache stores info, it will be hard for them to guess what itervalues() does. Differential Revision: https://phab.mercurial-scm.org/D6152

branchmap: remove the dict interface from the branchcache class (API) The current branchmap computation involves reading the whole branchmap from disk, validating all the nodes even if they are not required. This leads to a lot of time on repos which have large branchmap or a lot of branches. On large repos, this can validate around 1000's of nodes. On some operations, like finding whether a branch exists or not, we don't need to validate all the nodes. Or updating heads for a single branch. Before this patch, branchcache class was having dict interface and it was hard to keep track of reads. This patch removes the dict interface. Upcoming patches will implement lazy loading and validation of data and implement better API's. Differential Revision: https://phab.mercurial-scm.org/D6151

test-template: fix stdio mode on Windows Otherwise, CBOR data would be corrupted. Spotted by Matt Harbison.

samplehgrcs: update the list of suggested extensions Back in the day, this was color and pager, both of which are now default. Churn isn't that popular, but the other four below (obviously?) are.

samplehgrcs: clarify which lines should be uncommented The original wording has confused at least one person. Hopefully it's clearer this way. https://stackoverflow.com/questions/55288177/adding-hg-strip-to-hgrc-config-file

templatefilters: add {x|cbor} filter for custom CBOR output

template: add CBOR output format The whole output is wrapped as an array just like the other serialization formats. It's an indefinite-length array since the size is unknown while encoding. Maybe we can add 'cbor-stream' (and 'pickle-stream') as needed.

memfilectx: override copysource() instead of using dummy nodeid The "_copied" property in basefilectx is used by renamed() and copysource(). committablefilectx (which memfilectx subclasses) overrides renamed() and writes it in terms of copysource() instead of _copied. That means that the nodeid part of "_copied" is memfilectx is unused. Let's instead override copysource() too so we don't need the "_copied". Differential Revision: https://phab.mercurial-scm.org/D6159

memctx: rename constructor argument "copied" to "copysource" (API) It's just the path, not the nodeid, so "copysource" seems more appropriate. Differential Revision: https://phab.mercurial-scm.org/D6158

crecord: redraw the screen when starting up chunkselector Failure to do this can cause screen corruption like: <headerline> [X] filename.cc <several blank lines> <output from previous iteration of split that happened to be here> I believe this might only happen in some terminals, and maybe only when using the "alternate screen". Regardless of the exact conditions to reproduce, it should be safe to always clear it when starting up and is probably the correct thing to do anyway :) Differential Revision: https://phab.mercurial-scm.org/D6131

crecord: redraw the screen on ctrl-L This is the normal use of Ctrl-L, so I think this is going to be what most people expect it to do. We're keeping the adjustment of what line we're scrolled to as well. I believe both to be necessary to handle otherwise inescapable situations when we've got screen corruption or edge-cases during window resizing. Differential Revision: https://phab.mercurial-scm.org/D6130

crecord: completely redraw screen when coming back from editor Differential Revision: https://phab.mercurial-scm.org/D6129

tests: glob seconds in test-upgrade-repo.t I had the test failing locally for me with diff showing `1.4s` instead of 0.0s Differential Revision: https://phab.mercurial-scm.org/D6161

store: recommend using `hg debugrebuildfncache` is fncache is corrupted Differential Revision: https://phab.mercurial-scm.org/D6160