obshistory: give a more correct name to a variable This variable holds a list of predecessors, which obslog presents to graphmod as parents so the latter could understand the data without the need to introduce another graph edge type specifically for predecessors. Also remove debug comments.

tests: unindent lines that only have one leading space One space is not even defined in our .t files syntax.

rewind: make __rewind-hash__ extra field be bytes

touch: make __touch-noise__ extra field be bytes

branching: merge with stable

evolve: fix some documentation grammar/typos

evolve: fix some documentation grammar/typos

changelog: mention the recent evolve improvements

tests: merge two tests about split changesets Because the removed test case is essentially already included in the succeeding one, the tests are merged by removing the first.

evolve: support successors of ancestor of orphan with multiple roots The previous code checked that the set of successors has a single root. However, there’s no reason to require that in general. Example: o 6 | o 5 |\ | o 4 | | o | 3 |/ | * 2 | | | x 1 |/ o 0 1 is obsoleted by 3, 4 and 6. We are considering the case when 2 gets evolved. The roots are [3, 4] and the heads are [6]. Before the change, the user was asked which destination to choose, but there was only one choice (6). After the change, 6 is chosen as the destination.

evolve: support ancestor of orphan split with unrelated changeset in between This is done by searching for roots and heads within the range delimited on both sides by the target revs instead of just within the target revs. Example: o 5 | o 4 | o 3 | | * 2 | | | x 1 |/ o 0 1 is obsoleted by 3 and 5. We are considering the case when 2 gets evolved. Before the change, both roots and heads were [3, 5]. The user was offered a choice between 3 and 5 as the destination. After the change, roots are [3] and heads are [5]. 5 is chosen as the destination.

exchange: deal with empty obscommon The case can happen, we better support it.

topic: compat with tr.changes[b'phases'], it's now a list

topic: fix compatibility issues caused because of change in transaction API In 36f08ae87ef687be53a59bd87376bcfbe4479205 in core mercurial, `_validator` attribute to transaction class was removed and a dict was introduced. It added a `addvalidator()` function to transaction class which can be used to register multiple validator callbacks. This updates the code to use `addvalidator()` when `_validator` attribute is not present.

obsexchange: fallback to simpler request for dumb http server If the http server cannot accept many arguments, avoid sending too large requests (at the cost of more data exchanged). A better solution would be to aggregate contiguous range, but this is a question for later.

obsexchange: swap the 'common' and 'missing' clause

obsdiscovery: avoid considering locally hidden changeset This looks like a dubious optimisation

obsdiscovery: add a test where some common node are hidden This is useful to prevent regression.

tests: use appropriate Python (2 or 3) for dummyssh

evolve: add missing 'of' in message The message refers to the changeset that is currently evolved. Therefore the message needs an additional 'of' to be correct.

test: fix graph label in test-push-checkheads-pruned-B5.t They were wrong.

readme: mention compat string format

readme: copywrite the section about branch policy, wrap long lines

compat: update hg-X.Y compat comments and test them

contrib: add a script to check release in compat comments that have node hash

changelog: add an entry about the cleanup

evolve: drop compat for pre-4.5 context.memfilectx()

compat: update a couple of obviously outdated version comments

evolve: drop pre 4.0 compat for dirstate.parentchange()

evolve: drop 4.5 compat for scmutil.resolvehexnodeidprefix()

evolve: drop 4.5 compatibility for patch in tryimportone()

evolve: drop 4.5 compatibility with `patch.extract` API

evolve: drop 4.5 compatibility for template keywords

topic: drop 4.5 compatibility for template keywords

compat: drop 4.5 compatibility for strdiff

compat: drop 4.5 compatibility layer for log utility

compat: drop 4.5 related compatibility around wireprotocol module

compat: directly use status attribute instead of the compat layer With 4.5 dropped, this compat layer is no longer needed.

compat: directly use function from dateutil Since support for 4.5 have been dropped we no longer needs this indirection.

compat: drop 4.5 compatibility for `_filterederror`

compat: drop import compatibility <= 4.5 for `forcebytestr` We no longer support 4.5

tests: adapt now that Mercurial clears the merge state for empty wdir `hg evolve` forgot to clear the merge state when its attempt to commit resulted in no commit because the working copy had no changes. That resulted in test-evolve-issue5967.t showing a conflict state that shouldn't be there. The responsibility for clearing the merge state was moved into Mercurial in Mercurial in 6a34e438461b (commit: clear resolved mergestate even if working copy is clean, 2020-02-28), so the bug is now fixed in `hg evolve`, which impacts that test case. CORE-TEST-OUTPUT-UPDATE: 6a34e438461b

tests: add more involved tests for obslog -T now that everything is a property

obslog: remove the separate "obslog -f" implementation and use the common one

obslog: provide successors and multiple markers to marker-displaying function

obslog: make date template property into dates

obslog: make note template property into notes

obslog: make operation template property into operations