phases: inform transaction-related hooks that a phase was moved We do not have enough information to provide finer data, but this is still useful information.

test-bundle2: also test the argument of the changegroup hook We also track execution of the changegroup hook. The important information here is to make sure the information that the transaction was processing a bundle2 is passed to hook. This will let most hooks disable themselves while waiting for the hook concluding bundle2 processing (the one we discovered to be not called for pull in the previous changesets).

test-bundle2: test that we got appropriate hook called with appropriate data We can notice that this transaction wide hook is only happening during push and it is missing changegroup-related information. We'll want to fix this but this is not what this patch is about.

pull: use `stepsdone` instead of `todosteps` The push process uses a `stepsdone` attribute instead of a `todosteps` one (with the logic swapped). We unify the two process by picking the `stepsdone` version. I feel like `stepsdone` better fits extensions that would want to extend the push exchange process.

pull: make discovery phase extensible We apply the same approach as for push and make the discovery extensible. There is only one user in core right now, but we already know we'll need something smarter for obsmarkers. In fact the evolve extension could use this to cleanly extend discovery. The main motivation for this change is consistency between push and pull.

sshpeer: forward stdout of remote "hg init" to appropriate output channel Otherwise, commandserver channel could be corrupted.

revlog: support importing censored file revision tombstones This change allows a revision log to not fail integrity checks when applying a changegroup delta (eg from a bundle) results in a censored file tombstone. The tombstone is inserted as-is, so future integrity verification will observe the tombstone. Deltas based on the tombstone will also remain correct. The new code path is encountered for *exactly* the cases where _addrevision is importing a tombstone from a changegroup. When committing a file containing the "magic" tombstone text, the "text" parameter will be non-empty and the checkhash call is not executed (and when committing, the node will be computed to match the "magic" tombstone text).

verify: report censored nodes if configured policy is abort

context: handle censored data in an on-disk file context based on config Two possible behaviors are defined for handling censored data: abort, and ignore. When we ignore censored data we return an empty file to callers requesting the file data.

manifest: add fastdelta method to manifestdict This is another step closer to alternate manifest implementations that can offer different hashing algorithms.

manifest: move _search to module level and rename to _msearch The rename is intended to provide a slight hint that it is manifest-specific.

manifest: move manifestdict-to-text encoding to manifest class A future patch will introduce a new format, with a new class.

localrepo: access status fields by name rather than index

subrepo: use separate instances of empty lists in status We do modify the lists that make up the status in several places, so it seems risky to use the same instance of a list for several different status types. Use a separate empty list for each type instead.

summary: make status code more readable In commands.summary(), we currently zip a list of labels with a list of statuses. This means the order of the status list has to match the list of the labels, which in turn means the status elements have to be inserted into specific places in the list. Let's instead group the labels and status data we want to display in a single list of pairs.

strip: make checklocalchanges() return full status tuple By making checklocalchanges() return the full instance of the status class instead of just the first 4 elements of it, we can take advantage of the field names and not require the caller to remember the element indices.

fileset: access status fields by name rather than index

histedit: access status fields by name rather than index

shelve: access status fields by name rather than index

record: access status fields by name rather than index It is safe to pass the full status to patch.diff() since it does its own slicing.

purge: access status fields by name rather than index

largefiles: access status fields by name rather than index

keyword: access status fields by name rather than index

hgcia: access status fields by name rather than index

context: store status class instead of plain tuple in self._status This improves readability a bit by allowing us to refer to statuses by name rather than index.

status: update and move documentation of status types to status class The various status types are currently documented on the dirstate.status() method. Now that we have a class for the status types, it makese sense to document the status types there instead. Only leave the bits related to lookup/unsure in the status() method documentation.

status: update various other methods to return new class

status: create class for status lists Callers of various status() methods (on dirstate, context, repo) get a tuple of 7 elements, where each element is a list of files. This results in lots of uses of indexes where names would be much more readable. For example, "status.ignored" seems clearer than "status[4]" [1]. So, let's introduce a simple named tuple containing the 7 status fields: modified, added, removed, deleted, unknown, ignored, clean. This patch introduces the class and updates the status methods to return instances of it. Later patches will update the callers. [1] Did you even notice that it should have been "status[5]"? (tweaked by mpm to introduce the class in scmutil and only change one user)

lfutil: avoid creating unnecessary copy of status tuple In lfdirstatestatus(), the status tuple gets deconstructed, the lists get updated, and then an identical status tuple gets created and returned. Change it so we simply return the original tuple.

dirstate: separate 'lookup' status field from others The status tuple returned from dirstate.status() has an additional field compared to the other status tuples: lookup/unsure. This field is just an optimization and not something most callers care about (they want the resolved value of 'modified' or 'clean'). To prepare for a single future status type, let's separate out the 'lookup' field from the rest by having dirstate.status() return a pair: (lookup, status).

commit: update file nodeid and flags in the same place Now that we have a separate variable for the original 'm1' manifest, we can safely update the nodeid of the file in the new manifest in the same place as we update the flags.

commit: use separate variable for p1 manifest and new manifest In localrepo.commitctx(), p1's manifest is copied and used as the basis for the manifest that is about to be committed. The way the copy is updated makes it safe to use it where the original p1's manifest is wanted. For readability, though, a separate variable for each purpose would be clearer. Make it so.

commit: remove dead initialization of 'lock' The 'lock' variable is initialized to None, but before it's ever read, it's assigned again.

commit: reduce scope of 'removed' variable The variable is closely related to 'added' and 'changed', so it makes sense to have it declared next to them.

rebase: fix some weird mixed-case naming

rebase: move duplicatecopies next to merge This is preparation for removing open-coded rebase/graft operations. As a side-effect, this exposes proper renames in the working copy when there are conflicts, which shows up in test-shelve.t.

histedit: use merge.graft

graft: use merge.graft

merge: add merge.graft helper This will help unify all the open-coded graft/rebase operations.

duplicatecopies: move from cmdutil to copies This is in preparation for moving its primary caller into merge.py, which would be a layering violation in the current location.

histedit: fix indent The duplicatecopies call should be part of the rebase block.

graft: move rebase cleanup code next to actual rebase This is prep for refactoring the rebase logic.

shelve: add a bundlerepo method

dirstate: merge falls through to otherparent This lets us more correctly fix the state when we use setparents, as demonstrated in the change in test-graft.t.

dirstate: use 'm' state in otherparent to reduce ambiguity In rebase-like operations where we abandon the second parent, we can correctly fix up the state in setparents.

dirstate: properly clean-up some more merge state on setparents

phases: move root phase assignment to it's own function This moves the initial root phase assignment to it's own function. Future patches which make phase calculations lazy will use this function to pre-fill certain phases which can be deduced from the roots.

phases: add invalidate function Phase cache invalidation was spread all over the place. Let's add a function to unify it. Later more will be added to this function.

phases: change phase command change detection A future patch is going to make phase computation lazy, so the phase command can no longer read and diff the entire phase list directly. This changes the phase command to build it's own list for diff purposes.

spanset: remove `.set()` definition All my friends are dead.

generatorset: remove `.set()` definition All my friends are dead.

addset: remove `.set()` definition All my friends are dead.

filteredset: remove `.set()` definition All my friends are dead.

baseset: remove `set()` definition All my friends are dead.

abstractsmartset: remove `set()` method definition Now that all usages have been removed, we can drop this not so useful part of the API. We can note that the name was wrong all along...

match: check if an object is a baseset using `isascending` instead of `set` The `set()` method is going away.

getset: check if an object is a baseset using `isascending` instead of `set` The `set()` method is going away.

fullreposet: detect smartset using "isascending" instead of "set" The `.set()` function is going away.

fullreposet: drop custom sets but not smartsets detection All custom classes use by revsets are smartsets now. We drop the special-casing.

addset: drop `.set()` usage during iteration We can use the containment check directly.